GESS

From start to finish, GESS Limited have been outstanding. Ian’s quick response set the tone — fast, clear, and genuinely helpful. The quote arrived almost immediately, and the professionalism of the team arranging the DNO approval was first‑class. Everything was handled smoothly and without any stress on my side. They even found me an early slot for both the initial technical assessment (a very thorough and reassuring inspection) and the installation itself, which was an absolute dream. The engineers were efficient, tidy, and clearly knew exactly what they were doing. I’m delighted with my new SolaX battery array. Since the sun started shining in March, I haven’t paid a penny for electricity at the expensive daytime rate. The batteries and my solar panels have worked together perfectly to keep the house running without daytime import. It’s been transformative. Highly recommended — a brilliant company delivering brilliant results.

GESS Solar Installation From the very first consultation through to the installation, the service was outstanding. Harrison was incredibly knowledgeable and took the time to explain everything clearly, providing expert advice during the initial consultation and site survey. He answered all of my questions honestly and helped me make informed decisions without any pressure. The installation engineers were equally impressive. They were friendly, professional, punctual, and worked efficiently while keeping everything neat and tidy. It was clear they took pride in their work, and the quality of the installation reflects that. Overall, a fantastic experience from start to finish. I would highly recommend this company to anyone considering a solar panel installation.

We recently had a full installation (13PV Panels & Battery) completed at our property in Wickford and couldn't be happier with the result. The installation itself was carried out to a very high standard. The workmanship was neat, professional and clearly undertaken with great attention to detail. The team arrived when they said they would and worked efficiently We obtained several quotations, incl. E-on & Octopus and found them to be extremely competitive without compromising on quality. We are delighted with the completed installation and would have no hesitation in recommending them to friends, family and anyone looking for a reliable and trustworthy contractor. A huge thank you to Harrison, Lorraine, Sandra, Marlin and the whole team, who genuinely went above and beyond.

Brilliant installation! The Gess team were efficient, friendly and respectful. Listening to our concerns re unsightly cables and working with us for the best solution to be sympathetic with the building, The finish was exceptional and everything left clean and tidy. A company I would definitely recommend!

A good experience from start to finish, with polite and tidy installers who left no trace of their presence other than the installation. Great after sales too. I totally recommend their services.

GESS installed my solar power system in 2016 and was very happy to give 5 star review at that time. I recently had battery fault develop (a real rarity, I gather) close to the end of the 10 year warranty period. Unlike some companies who have little regard for after-dales service - especially after the great amount of time that had elapsed - GESS were very helpful in liaising with the manufacturer to get the matter resolved. Very pleased!

Absolutely thrilled with our solar + battery install today! The system’s already humming and producing, and Harrison (sales rep) was amazing, clear, patient, no pressure, and he actually explained everything in plain English for a novice, he is very intelligent with all things renewable, Crew was tidy, and left us confident about running it all. Highly recommend, and ask for Harrison! 5 star!

Solar Panels, and Battery installation. From initial consultation, through the survey, and on to installation the service has been top notch. Professional, Prompt (always a plus in my book) and friendly. We had a list of stock questions, that were asked of all of the 6 companies we consulted. GESS staff answered all questions clearly, and did not try to skirt around the questions, as some did. The Installation was Slick, the fitter turned up on time, later joined by the electrician. The whole job was done in a day. We did experience a minor issue with the connection to the wifi, but that has now been rectified. Since installation the system has run extremely well. The panels are producing more energy than expected. Cost of the system was competitive when compared to the other companies we consulted, and the technology is cutting edge. 5*s all the way.

We had our Solar PV & Tesla Powerwall 3 install done by GESS Renewables following a recommendation from a friend. We had a few quotes and GESS came out on par if not a little bit more than the others but their expertise and customer service were the key decision maker. We would certainly recommend GESS for anyone looking for an installer to deliver a high quality installation. And A Special mention to the Team Harrison (Sale) Wayne (Panels Installer) Jack (Electrician) Fraser( Wiring ) And not forgetting Lorraine and Sandra ( Admin and Support) well done guys for making my Experience with start to finish so smooth and easy ..!!

Great journey started with an introduction to the various products and how they would fit into my house and needs. Followed up by survey and install At all stages communication was very clear and the work very professionally delivered. High quality install done with care. A• Well done all involved at GESS.

Really pleased with my solar panel and Tesla powerwall install. Two months in and everything working smoothly. Really good experience from start to finish: from Fraser designing a solution that maximises my roof space, Wayne battling the elements and my inadequate scaffolding to get the panels up (note to self: use GESS scaffolders next time) and Marlin for doing such a tidy job installing the powerwall and all the indoor bits. Not to forget Sandra and Lorraine for organising everything and getting all the bits with the grid sorted super quick so that I could start exporting almost straightaway. They only thing they haven’t been able to sort out yet is some sunshine! Would wholeheartedly recommend.

5 stars Really pleased with the service from GESS Renewables. They installed our air source heat pump, solar panels and battery storage, and the whole experience was excellent from start to finish. A big shout out to Richard, who was brilliant from start to finish. His communication was incredible throughout and he made everything easy and straightforward. Also a special mention to George the plumber, who worked day and night to get the job done. He was always thoughtful and considerate of me and my family, which we really appreciated. The team were professional, knowledgeable and easy to deal with, and the quality of the installation was spot on. Everything was explained clearly and the finished system looks great and works brilliantly. Very happy to recommend GESS Renewables.

Absolute spam callers. I look up for an online quote, and the next day instead of just emailing or leaving a message when you can't answer the phone, and getting the hint that you can't answer. . I get spammed with 6 calls almost hourly. Safe to say I will not be using their services, To the company, not only is calling people for something that could be an email disrespectful to their time. Repeatedly calling 6 times when it's clear they cannot answer the phone, is both extremely annoying and disrespects the customer and the fact they have things to do, jobs to work. It also screams of desperation from you as a company. ring once, if they can't answer leave a message, and send what should have been a email to start with, as an email. And most of all don't anger your potential customer by spamming them.

Gess contacted me after octopus were unable to do the job because of the size of the house. All I can say is that was the best outcome for me because the team that Gess sent out were amazing. They started on time and finished on time, I couldn’t have asked for more (smart, professional and very tidy) I would definitely recommend Gess.

GESS installed 29 panels and a Powerwall 3 last September. However we requested that 12 panels were placed along a south facing fence but not attached to the fence. This meant building a self supporting bespoke structure. The installation went without a problem and the system has worked extremely well since. Nothing has been too much trouble and I would highly recommend GESS.

GESS were recommended by Octopus Energy because I wanted my installation done in a particular way which Octopus couldn't accommodate. From first contact through to completion of the installation I have been impressed by the efficient organisation and execution of all aspects of the work including the scaffolding. The three installers were a great team, leaving me with an incredibly neat and tidy system and it was followed up immediately with the necessary certificating to enable me to move to an exporting tariff. One totally satisfied customer.

I had solar panels, a battery and a car charger installed. The guys doing the installation were great and everything worked fine until givenergy changed something on their system and the app failed, leaving me unable to view or charge the battery. I contacted givenergy but they don't reply to emails or phonecalls. GESS came back to me and finally got GivEnergy to correct the mistake. I would recommend GESS

Gess what? Richard & Wayne fitted in my panel reinstallation following an emergency roof replacement. They saved me the cost of scaffolding the house again next year and did a better arrangement of the 18 panels than before!

We had an excellent experience with GESS — the whole process was incredibly quick and efficient. RICHARD came out to give us a quote (with couple surveys), and GESS came out interesting and cheapest with the most panels. Best of all, they were able to install the following week after the signed documents (in the coldest day of November). They handled everything: application was sorted quickly, scaffolding went up without a hitch. The team came over to do the survey and took the time to walk us through exactly how the system would work, which really helped build our confidence in the setup. Richard and all the team was brilliant throughout — always quick to respond, really knowledgeable, and happy to answer all our questions. The installation itself was seamless. Great service, great communication, and a really smooth experience from start to finish. That’s GESS Highly recommended!

Guess give honest independent advice to recommend and install home renewable technology. Several years on I am still very pleased with their solar installation and ongoing support.

Generally a good experience with the ASHP, Fraser (sales guy) is quite insistant so be prepared for weekly calls till you make a decision! Jacob the plumber was fantastic while having to deal with mistakes from HO/Fraser (we ordered a 300L tank and a 250L tank was fitted in error so work was extended by a day while this was removed and the correct on e installed). All work was completed well and cleanly. After sales support has been slow and access to the Melcloud App to monitor the ASHP took a bit of chasing (daily messages and calls for a week) to set up. Generally very happy with the service, just a few niggles,

I had GESS Renewables in to install my Enphase & Tesla Powerwall 3 system. From start to finish they were fantastic. After speaking to multiple companies the knowledge and professionalism of GESS was clear to see. The install went smoothly and the guys were thorough in explaining how to navigate my new system. The Enphase app gives me a great insight in to what is happening on my roof and the Tesla is brilliant. Full home back up what is not to like! Don’t hesitate and give GESS a call now

Have only great things to say about Gess, not only were they brilliant for the installation which went smoothly and quickly, in the subsequent years (8 or so) they have always been helpful with any query I have had. Would definitely recommend if they work in your area.

Appalling Aftercare and Zero Support – Deeply Disappointed I rarely leave reviews, but my experience with GESS Energy has been incredibly frustrating and disappointing, particularly when it comes to their aftercare and customer support. Since the installation, I’ve had consistent issues with the mobile app, which is supposed to allow me to monitor my energy levels. Unfortunately, the app has never worked properly—I am completely unable to view my energy usage, which defeats the entire purpose of having a smart energy system installed in the first place. I’ve sent multiple emails over the past few weeks explaining the issue and requesting support. Not only have I received no reply, but no one has contacted me or even attempted to arrange a visit to resolve the issue in person. It is deeply unprofessional and honestly quite shocking how a company operating in the energy sector can treat its customers with such disregard after installation. The lack of accountability and responsiveness shows that GESS Energy is more interested in making the sale than providing any meaningful ongoing support. If you’re considering going with this company, be aware that once the installation is done, you may be completely on your own if anything goes wrong. I expected much better and feel genuinely let down. Avoid if aftercare and proper customer service matter to you.

I recently had solar panels and battery storage installed by Gess Renewables, and I couldn’t be more pleased with the entire experience. From the initial consultation to the final handover, everything was handled professionally and efficiently. The team was incredibly friendly and knowledgeable—special thanks to Richard, who went above and beyond to make sure everything was just right. The installation itself was completed on time with minimal disruption, and the workmanship is top-notch. I would highly recommend Gess Renewables to anyone thinking about making the switch to renewables. Absolutely five stars from me!

No aftecare, terrible communication. Think again before using this company.

Gess installed our 8.5 kw battery two and a half years ago and it has since been running trouble free. We were most impressed with the standard of work displayed by the installers who were most helpful in explaining how best to use it.

I have had my solar panels since 2015, now 10 years, no problems. I sometimes get messages that Micro-inversators not working for a time. I worked on ROI of 5 years with FIT & it has paid off in that time.so now I am pure profit from my investment. I notice several panels are not generating what the others are generating... age or what ?

We are very satisfied and so far there have been no hiccups...

WHY GO ANYWERE ELSE.................. 1ST CLASS SERVIS AND INSTALATION , GREAT PEOPLE WHO CARE ABOUT THE PRODUCT AND INSTALL, BACKUP TEAM ALSO THE BEST YOU CAN EVER WANT , NO NEED TO LOOK ANY FURTHER.........DONT WAIT CONTACT THEM NOW.........

Great service, and expert advice. Very professional and installation was seamless. Would definitely recommend them and use them again.

All in all a pretty decent service. 1 of my two Fox batteries wasn't plugged in right initially, but was sorted by the engineer promptly once the problem was highlighted. Thank you Gess!!

Gess installed solar panels for me over a year ago. Great , efficient job. I have also found them responsive when I have had little problems since them

So had my battery system now for a while and can't fault the unit. However the install.... So I persume the guys where on a day rait. very very rushed install. - Tails where left lose that created arcing, Energy provider had to replace isolator as damaged so badly. - plastic conduit used that should only be used inside ( IP raiting ) - wrong type of RCD installed, they did reattend to fix after I pointed this out. Shouldn't take a customer to be pointing out regs to a installer..... - Test button for RCBO is touching cover so if you lean on the pannel, it tripps .... - Trapped neutral cable - chunck taken out of one of the live cables. over all just a very rushed job. The younger chap was very good but sadly he left early and the older chap just wanted to leave. ( and rushed the finnish) when spending this level of money it's a shame. especially when I'm planning on installing solar on other property's I own.

I will not be using GESS again

Good service - used these guys for 2 installations.

Gess replaced our battery for one with more capacity. Work was done quickly and efficiently. would recommend them.

Excellent service from this company, would definitely recommend. No pressured sales techniques, fair price for great quality panels, all installed on time with no issues or hidden extras.

GESS put panels and batteries in a good few years ago. Absolutely no issues and still belting out kWh. We never see the guys; they can pop in for a coffee if they wish, we do like them.

The Gess team were punctual and efficient, friendly and knowledgeable, and the installation was swift and non invasive. I just cleared the space for the batteries near to the electrical intake, and they did the rest.

We have had solar panels on our roof for about 14 years. Never had a problem with them and they have paid for themselves and then some. Wouldn’t hesitate to recommend Gess

6 months in the convertor failed & it took them 3 months to replace it. Salesman assured me none of their customers had problems with pigeons. Well this one did. 12 dead one under the panels by the time I found someone to fit an effective net around it - Gess didn't even bother responding to that complaint.

We have been with Gess for many years now and I thoroughly recommend them . I had a problem a while ago ( not with them or their product) and it was sorted immediately. When I had mine installed Ian already had the quote ,there was no pressure selling, bartering or lying as I find in a lot of salespeople. As I said it was many years ago and they had a lady called Elo working for them and she phoned to see how we were getting on . I have nothing but praise for this company , if you are thinking of solar panels you wont go far wrong with GESS. BTW as a warning I’ve had companies contacting me to service my panels telling me the company who installed them (meaning GESS)was no longer trading , it’s complete lies , they just wanted to get the business

Solar installation was excellent from start to finish. Everyone we met involved in the install from initial visit to the house, scaffolders, electricians and roofers were polite and knowledgable and went out of their way to make the process as effortless for us as possible. I would highly recommend

Does exactly what it says on the tin. efficient, helpful, pleasant to work with.2nd time I have used them and wouldn't hesitate to use them again

A few days after my solar panels were installed, I had a query about why 2 of the panels were consistently underperforming compared to the rest of them, even though there no reason for the difference (like shade). My query was met with hostility, probably by the thought of GESS providing aftercare. Beware!..If you value customer service beyond the final payment.

Brilliant service from day one. Helped us with choosing the best solution and siting of panels. Visited showroom to see what everything looked like beforehand. Office staff friendly and helpful. Installation team punctual, polite, tidy and very efficient. Looking forward to years of low cost energy.

Efficient, effective and swift service from this company who installed a Tesla battery last year, conducted a very thorough ASHP survey and prepared a quote and fitted a second battery recently. GESS also completed the ASHP installation today. Excellent value for a five day project. Works really well. Their plumber and apprentice worked hard and to a very high standard, being meticulous about cleaning and tidiness. Willing to answer lots of questions. A first rate job from very knowledgeable and diligent technicians. Really pleased. The neatness of the work can be seen in the photographs. Highly recommended.

Fitted a house battery system to go with our previous solar panels. Great service, no issues all connected and done in a day

Guess installed my system in 2017 the work carried out was first class and completed in 1 day with no mess. Their operatives were extremely professional and helpful clean and polite very good workmanship on their behalf. The inverter recently got stuck in night mode after a failed software update, I called out GESS who dispatched one of their installers he manually reinstalled the software and it has worked faultlessly since then. A first class company highly recommended.

Gess supplied and fitted 2 powerwalls, faultless installation, great guys, even checked how happy I was a few weeks later. Excellent! P.S. And a great price.

Efficient system. Good communication set up. Helpful staff.

We have had a Solar Array and Tesla Powerwall installed by GESS. The whole experience from the initial enquiry, quotation and installation was first class. We are thrilled with the performance of the system and can’t fault the service we have received from the GESS Team

We had solar panels and a Tesla battery installed, soon we will get a heat pump, alongside with a house renovation. I am finding Gess very relieable and if there are any questions, they do answer quickly, also good at explaining everything - great relieable service. Everything works perfectly, no issues at all. Pricing similar to other companies. I can reccommend GESS.

A great decision was made when I chose Gess for our first Tesla battery. After contacting a number of suppliers and discussing the best applications, options and costs Guess was the stand out supplier. Following the original survey and subsequent discussions both on site and office the first Tesla battery was installed in the detached garage around June 2024. This battery was to work with our existing solar system on the house roof. They sorted the DNO paperwork and the exporting process. It was a little confusing how things worked with our existing FIT payment from British Gas the new SEG from Octopus we had and some doubts, but with the help of Guess staff it all became clear and worked well. So well, that in October we had four new panels fitted to the garage roof plus another Tesla battery fitted inside the garage alongside the other one. It all looks so cool. The whole system works very well and we could see the savings starting to accumulate even through the winter months and now at end of March with the better weather and increased sunshine hours, the savings are increasing. The combination of solar generation, battery charging and timely discharging along with our FIT payments together with SEG exporting all work to save us money. I have no hesitation but to recommend that you give Gess a call for your Solar and Battery needs.

Got Solar Panels and a battery about 3 years ago with GESS. No issues, still going good. Professional staff and good quality work. They have time to talk to customers! as I had plenty of questions and queries, which they were happy to answer. I would and have recommend them to friends and family.

Excellent I would recommend you try Gess before going anywhere else.

Excellent company. Easy to deal with. Recommend to anyone.

Competitive pricing and excellent service by the whole team. I thoroughly recommend.

Great team, great price. System still going strong 5 years down then line

Definitely recommend Gess, they’re fast, efficient and they made the whole process so smooth and easy.

It is now six years and everything is working perfectly. During the summer months the money we receive for generating electricity is greater than the amount we pay.

Excellent experience, 6 years on my panels are still giving out excellent power, and have now paid for themselves in tariff and free electricity.

Thanks to GESS I run two electric cars, an XXL heat pump and all the house electrics and Octoplus pay me every year! Highly recommend them.

The removal and refurbishing And refitting was done to perfection carried out professionally Without any problems or mess, could not fault the fitters or the firm the Communications were perfect five stars to all concerned.

Initial contact and follow through to job completion was well done. No problems at first. However there was a technical issue with the system metering installation being incorrectly wired in. It took a long time to get this resolved. Otherwise a successful contract. Now working very well.

Gess installed our solar 20 panel system in 2023 and subsequently installed a powerwall 2 the whole process was seamless and team were polite and professional, my initial dealings were with Richard Fancourt who was a pleasure to deal with. If you are in the market at the very least get a quote, you will not be disappointed

Following the quotation we quickly decided that GESS was the best value for money and they were very flexible with us booking in a quick installation. Very friendly and helpful to work with everyone in the office could deal with a query at anytime.

I’ve had a fantastic experience with GESS Limited. The team is incredibly knowledgeable, professional, and reliable. They deliver high-quality work with great attention to detail and a clear commitment to customer satisfaction. Communication has always been prompt and helpful, making every interaction smooth and efficient. I wouldn’t hesitate to recommend GESS to anyone looking for a dependable and skilled service provider. Excellent company all around!

Highly recommend Gess Renewables. We had Solar Panels installed last year as we were also recommended to them by a family member. The team were friendly and very helpful, we could not fault them one bit.

Gess installed 20 panels on a MMC, build using panelized structural walls and panelized structural floors for a fast new build residential project. Designed and project managed by Structural Works Ltd in Southend on Sea. The short construction time, with all below ground electrics and all services pre-coordinated by Structural Works, meant the hand over to Gess for their install was seamless. All stages of the Gess install were carried out with the highest level of professionalism. Everything was up and running by the end of the day enabling follow on trades to start with no delay.

Absolutely totally recommend these guys. We got some solar panels 8 years ago from them. Superb. Still working as well as day 1, and fully paid for themselves already - meaning we now get free power for free! We then bought a Tesla Powerwall battery from them, 7 years ago which has also fully paid for itself, and then bought a second Tesla Powerwall from them, so we can fully power the house through powercuts for extended periods of time. I cannot recommend GESS highly enough; to be fair, we have had the odd problem, which every time, GESS has sorted out straight away, and always with a smile. Really top notch. If you are thinking about a Solar installation, and these guys are nearby, I totally recommend them! Price-wise they did really well, but honestly even if they aren't the cheapest - these guys are rock solid reliable in my experience. :-)

Great advice given when we first looked at getting Solar panels, the team talked us through the options for both panels and batteries; ultimately we only had panels fitted. The fitters did a great job of installing the panels and setting us up on the app, overall can’t fault the service.

We had our solar panels fitted by Gess over two years ago and we still think it’s the best decision we made. Lots of advice given from Ian to absolute solar panel novices. Fitted in a day and 14000kwh of energy made over the last two years. When we had an issue with one panel, Gess sent their team out to replace the panel as soon as they could. Always helpful on the phone and would totally recommend.

I had tried using another solar panel supplier and been very frustrated by their incompetence. I found GESS to be the complete opposite. They did not try and oversell, gave good advice on where we could put the panels, were very efficient and easy to contact. I almost felt as if I were the only customer. Good price too. The panels have been up a while, are working well and have survived some fierce winds. Thoroughly recommended.

We have had solar panels installed by Gess Renewables on two occasions. The first time 12 years ago on our bungalow and then again when we moved to Norfolk 18 months ago. The most recent installation is 14 solar panels, a 5.8 battery and an iboost. We would highly recommend Gess on every aspect - Pricing, Customer Service and the excellence of the installers.

I have had my Giv battery installation for three years now. Gess Renewables took care of everything, including an expert salesman who kept in touch human to human. The company office team were completely helpful with the administrative side of things, and keeping me updated on a delay. The installation team both helpful and competent, explaining what they thought I could understand. Now I am onboard with Octopus, I am finding real savings.

Had 16 panels fitted in 2016 with this company and was great service from start to finish. Had no problems till november last year when i had a new internet supplier fit my box at back of our house instead of the previous front. Noticed loosing internet to enphase box so couldnt see how much energy i was making. Once spoke to solar service decided to have box moved back to original position at front of house and nearer to the solar equiptment and had no problems since. I would definately recommend this company.

We used GESS to design and instal a 50 panel, two Tesla Powerwall 3 system for our house which has a 3 phase supply. Throughout the design process they were expert and knowledgeable, a contrast to many other installers who were flummoxed by the non standard, 3 phase supply. When it came to the installation the entire team was polite, professional, neat and quick - from the electrical team through to the panel installer, groundworks team and the scaffolders everyone was a delight to work with and we couldn't have been happier. Now the system is installed it has been wall to wall sunshine and we don't know what to do with all the power being generated. Would not hesitate to recommend GESS for any complex installation. Thanks to Harrison, Marlin, Jack, Wayne and the rest of the team. Excellent service.

Following the initial installation of panels in 2020, we have had 5 extra panels, batteries replaced by a Tesla battery and a heat pump just installed. The planning and manage of each of these installations has been of the highest quality. The installation process in each case was very well planned and carried out with excellent efficiency. In all cases and at all stages the expertise is always of a high quality and available.

Shopped around and extremely glad we decided to go with GESS. Great all in house service and a really quick turn around which was much appreciated for ease of scheduling in. Couldn't recommend more!

Had a great experience with Gess, installation for my solar and Tesla battery went smoothly, and scaffolding taken down as fast as it went up. Also recommended my family to have solar and they have since had their installation too.

Looked for local solar installer with a long trading history and technical, award winning capability. Gess were very friendly, surveyed the site, went through different operating models for the location. The installed system comprises of solar panels, battery storage, EV charger and surplus power for water heating. Kept informed on progress, handover included app use and operating manual / data pack / install certificates. They were flexible when the design changed through the build out. Thankyou Gess Renewables.

I've been looking for solar for almost two years and in that time I have seen the price go up and creep down. I never pulled the trigger as every single supplier never made the effort to come and visit us. Getting fed up with map surveys and online quotes on portals that don't load. I contacted Tesla directly for a Powerwall and solar, they put me in touch with Gess. Gess were different. Harrison, called me instantly and arranged a visit. We spoke about our unique requirements. As we install Building Automation systems (Loxone) we had a Loxone system in our property we wanted to integrate with our solar and had very specific requirements on the equipment we wanted to use, the location of the installed equipment and connectivity. Marlin (Gess' expert electrician) came and visited our site and made a brilliant unique plan to meet all our requirements, the whole team from Gess really went out of their way to accommodate us. The install happened over a couple of days, the lads were neat, tidy and very courteous. we've had our solar now for approximately 5 months (it's already saving us money on the utility bills) they still check in on us to ensure things are ok. I would happily recommend them over anyone else. I 'Gess' it speaks for itself if Tesla recommends them too.

Friendly and highly efficient staff . Very helpful with all your queries .

Fantastic when i have called up for advice or reassurance they give me the answers, it is really good to know that my system is being monitered 24/7 and i dont need to do anything. I would recommend them 100% .

The Tesla Powerwall 2 was very professionally installed by GESS and has been running since May faultlessly. The gateway is completely silent and the switch overs to and from the battery are unnoticeable. The whole system works perfectly and is easy to see on my iPhone exactly what is happening. Would highly recommend.

I have used GESS twice. Initially in 2017 to fit solar panels and a powerwall 2, then again in May 2024 to add another powerwall 2 and an updated gateway 2 to allow nighttime charging at cheap rate when required. I have been impressed by all my dealings with them (I am a repeat customer), and have no hesitation in recommending them. The installation was a breeze. The installers arrived on time, fitted the items and ensured everything was working and connected to the house wifi network.

Gess Renewables installed solar panels for me, and a battery a year later. They were friendly and easy to deal with and have been very helpful in following up any issues. I was glad to have found them, because they gave me far better advice than some other installers I contacted, and they are a genuine and trustworthy company.

They installed a solar system for me. Very happy with it.

Quick, efficient and helpful service by surveyor, installer and office staff.

Not only did they fail to update the installation date when they found that they had supply issues, but upon the order being cancelled due to this and refund forms being sent back to them ( which they confirmed receipt of), they have yet to refund the money. This is more than a month ago. In the end the refund has had to be provided by our bank.

The product is, and the installation was, excellent which of course is the main thing. The administration, however, is absolutely hopeless. I am still getting documents to sign on a regular basis and the installation was in February.

We were going with another company after getting a much higher quote, but a follow up call from Richard Fancourt gave us information about this other company and sugested we look into them, on doing so we found that the other company had lots of complaints. So our thanks to Richard for saving us a lot of money and we have more panels of a superior quality than we were going to get. I would highly recommend that you give GESS a try before going anywhere else.