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Earth NRG Ltd logo, heating engineer in South Witham

Earth NRG Ltd

Availability
Emergency call-outs

4.8(27)South Witham  •  NAPIT

Heating work

About

Earth NRG Ltd is a heating engineer based in South Witham. They fit underfloor heating and install and service heat pumps, and they offer emergency callouts. Customers say their staff are knowledgeable and helpful, that installs are tidy and sites left clean, that communication is clear and they are kept informed, and that the service is friendly and professional. They are listed with NAPIT as an installer.

Services

Reviews

4.8

Many reviewers of Earth NRG Ltd describe knowledgeable and helpful staff, with several praising workmanship and tidy installations across heat pumps and air conditioning. A number report clear communication and being kept informed, and some mention that work was completed on time and the site left clean. One reviewer had a poor experience with a heat pump quotation: after paying for a survey, the full calculation and heat-loss report were late, the price rose by about 20%, and calls about the increase were not returned. A separate reviewer says a request for an air conditioning quote was met with a reply about an air-to-water heat pump that ignored the details given.

BA
badfly1Oct 2026 · Google

Contacted EarthNRG for an ASHP quotation earlier this year, I chose them as they are very local to me and also HeatGeek trained and recommend. To be fair, they came pretty quickly, did a survey and I received a price estimate pretty quickly. I had two other companies around as well that did the same thing and EarthNRG was the only one to charge a fee for the survey for which I paid and was very happy to do so. After this is where it all went downhill rapidly, After many weeks of waiting for the full survey and heat-loss calculation that did not arrive, I chased it and received it, but the price was approximately 20% more than the price I had initially been sent over after the survey and also the MCS020 heat-loss was 2 Kw lower than that calculated by the other companies that quoted using the same MCS020 methodology. I had some genuine questions to ask in regard to the unexplained price increase and also the gap in calculated heat-loss compared to the other companies. I am aware that the correct heat-loss calculation is the cornerstone of a good technical design. Get that wrong and you could have a cold house in the middle of winter. Despite messages left on several occasions over many weeks with the receptionist, no one ever called me back, engaged with me to go through the proposal in detail or enter in to any kind of two way discussion. It was such a shame, they seemed like nice guys, I was a genuine customer with cash in the bank and I really wanted to use a local heatgeek trained company, but sadly the complete lack of any call back or engagement from them meant I had no choice but to place my order for a Steibel Eltron ASHP retrofit with another company. I wish them well, but on this occasion I felt genuinely let down and in the end had to face the fact they just didn’t want the job. I was unsure whether to share this feedback as they have a consistently high rating, but this was my experience and it should be shared.

LI
Lyd I.Oct 2026 · Google

Today we had an Air Conditioning unit installed at our office. We found Ryan & Harvey to be incredibly helpful, knowledgeable & professional when organising our unit. The installers Nigel & Michael also showed great workmanship & professionalism. They left the site clean & took away their rubbish. We plan to recommend Earth nrg to all of our customers.

TW
Tom W.Sept 2026 · Google

Great knowledgable installers. Very flexible with the design and my needs. Would highly recommend them to others looking to get a heat pump fitted.

CS
Chris. S.Sept 2026 · Google

We contacted Earth NRG after a personal recommendation.Their representative Nigel came round and gave us very valuable advice on the options with no pressure. They were honest in terms of time frames and costs. When they arrived they were very friendly and professional in all respects, completed the work in the promised time frames and left the house immaculate. We are thrilled with the finished product and would highly recommend this firm

DS
Daniel S.Sept 2026 · Google

I had a brand new system installed last September, with brand new ASHP, hot water cylinder and 10x radiators and was introduced to Earth Nrg via Heat Geek. The entire experience from start to finish was fantastic, special thanks to Harvey and George for all their help, nothing was too much and I was kept up to date from the initial contact and survey through to the install and commissioning. A year on and the system is still working great, house is always perfectly warn and most importantly it's both cheap and efficient to run too!

Area

South Witham, NG33

Opening times

  • Monday9:00 AM – 5:00 PM
  • Tuesday9:00 AM – 5:00 PM
  • Wednesday9:00 AM – 5:00 PM
  • Thursday9:00 AM – 5:00 PM
  • Friday9:00 AM – 5:00 PM
  • SaturdayClosed
  • SundayClosed

Additional information

  • Incorporated 2023
  • MCS NAP-72447
  • NAPIT
  • Emergency call-outs
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