G.M.G. (Contractors) Limited

3.8(73)Glasgow • RECC

About

G.M.G. (Contractors) Limited is a builder based in Glasgow, trading since 1987. They take on commercial work and landlord work. Customers say they are pleased with the high-standard workmanship, that staff are polite and friendly, that sites are clean and tidy, and that the office and site staff are helpful.

Reviews

3.8

G.M.G. (Contractors) Limited draws strongly divided reports. Many reviewers describe high-standard workmanship, polite and helpful staff, and tidy sites, with several saying they would recommend the firm or use it again. Others report serious problems, including poor rendering and roofing, damage to gardens and property, waste and tiles left in bins, and a satellite dish not refitted. One reviewer describes exposed ladders, rubbish and swearing on a nearby site, and several mention rude or unhelpful responses when raising concerns.

Clarkson of G.Oct 2026 · Google

Overall an outstanding contractor where the work is of a very high standard. Always keen to support a local independant contractors where we can too.

JBOct 2026 · Google

Watched the shocking safety work from my house nearby. Ladders left exposed after hours with no covering applied despite kids nearby, rubbish left everywhere including plastic wire and the workers were loud and rude, swearing constantly. I felt it was all totally unprofessional. From a health and safety point of view, I believe this company is severely lacking. The site manager turned up after complaints from a neighbour (who had scaffolding in their garden apparently without permission while the young lads laughed at the elderly couple and I witnesses this as did others) and also tidied up some of the safety issues left behind from workers. We will certainly not be using this contractor for our future renovations. Advice would be to advise staff of their surroundings when it comes to language but also ensure health and safety codes are adhered to at all times and rubbish tidied away.

M T.May 2026 · Google

Louise L.Feb 2026 · Google

Shocking workmanship and zero accountability I had external wall insulation and rendering carried out through a local council scheme, with the work done by GMG. It is now two years later, and my home has been left in an appalling condition. The rendering is failing, the finish is uneven and unsightly, and the overall standard of workmanship is far below what any competent contractor should deliver. What was meant to improve my property has instead caused ongoing stress, worry, and potential long-term damage. The installation looks rushed and poorly executed. Corners, edges, and detailing are badly finished, and the problems began far sooner than they ever should have if the job had been done properly. This is not minor snagging — this is fundamental failure of what should have been a long-lasting system. To make matters worse, getting meaningful support or proper remedial action has been incredibly frustrating. For work carried out under a council-backed scheme, the lack of accountability is deeply disappointing. My home is my biggest investment, and trusting GMG with it has turned into a costly and stressful mistake. I would strongly urge anyone considering using this company to think very carefully and ensure they have watertight guarantees and independent inspections in place. Based on my experience, I cannot recommend GMG.

Al T.Nov 2025 · Google

Absolute cowboys! they have won tender for roofing contract for the falkirk council, falkirk council being another issue, they were given work to fix a roof of my property, they carried out an assessment (without accessing my property dispite being advised water was coming into the property perhaps through the facia) they raised issues with the hip and ridge of the roof along with numerous tiles front and back and the chimney, scaffolding went up and was up for months, roofers came from GMG and stuck maybe 1 or 2 tiles on with sealer (despite their assessment of the ridge and chimney) they removed the scaffolding and advised work was complete, work was not complete the chimney was not fixed, the ridge was not fixed and tiles were still missing. They then tried to charge £3000 for this work, a complaint was made to the council that work hadn’t been complete and they have a fraudulent invoice, once the complaint was processed GMC sneakily tried to come back to hide their poor craftsmanship and do the work they were meant to do but luckily were removed from the property and banned so the investigation could take place, this is now with the SPSO for investigation and hopefully and investigation into them in relation with the falkirk council will show rhen for what they are, crooks scam artists and cowboys. AVOID!