
Extensions
Single and two-storey extensions that add space and value to your home. From groundworks and structural work to the final finish, we handle every stage to deliver a seamless, high-quality addition.

GMB Builders LTD
From extensions and attic conversions to bathrooms, kitchens and full renovations we handle it all.
About GMB Builders LTD
GMB Builders LTD is a Clydebank-based company specialising in all types of building works — from extensions and attic conversions to bathrooms, kitchens and full renovations, and everything in between. We cover Glasgow and the surrounding area, delivering reliable workmanship, clear communication and competitive pricing on every job, whatever its size.

Previous work





I would highly recommend GMB Builders. They were very professional and helpful from start to finish, speaking with us and giving advice throughout and at every stage, cleaning up every night before leaving. Billy's attention to detail was second to none, as were Callum and Graham. They arrived every day before 8am and hardly stopped all day. I'm so pleased with my extension, new kitchen, bedroom and shower room. Thank you, GMB Builders.
Having used GMB Builders twice, I cannot recommend them enough. From planning to completion, to a man, every worker was polite and helpful. I highly recommend these guys to everyone.
Just had some 3.5m windows and composite decking fitted. Second job that GMB have done for us. Delighted with the whole experience. Three days to take out the previous window, knock out brickwork below and complete the whole job. Lovely bunch of workers too.
Just had an extension and internal walls removed, WC relocated, plastering, plumbing and electrical works over 5 wks. Gregor, Mark and the rest of the team have been absolutely fabulous. They have always kept us up to date, turned up every morning on time (even the neighbours commented on how punctual they were!) and cleaned up every night after the day's work. Myself and hubby have nothing but praise for their high standards of workmanship. Would highly recommend them for any building work without hesitation.
We're absolutely delighted with the work GMB Builders did on our house extension. It has made such a difference to our home and we couldn't be happier with the end result. The whole team were fantastic from start to finish, professional, friendly, tidy and incredibly efficient. We really appreciated how they listened to us and genuinely cared about making sure the finished extension met our requirements.
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What we do
One local team, start to finish. From extensions and conversions to bathrooms, kitchens and full renovations — reliable workmanship at competitive rates.

Single and two-storey extensions that add space and value to your home. From groundworks and structural work to the final finish, we handle every stage to deliver a seamless, high-quality addition.

Attic and loft conversions and garage conversions that turn unused space into something useful. We take care of structure, insulation, access and finishing for a clean, complete result.

Beautiful, functional bathrooms and kitchens fitted to a high standard. From design and fitting to tiling and plumbing, one trusted local team delivers the lot — on time and on budget.

No job too big or too small. Plastering, joinery, roofing, masonry and general repairs — whatever your property needs, we bring the same reliable, tidy workmanship to every project.
How it works
Get in touch and we'll visit to assess your space, talk through your ideas and provide a clear, competitive quote — no obligation, no pressure.
We agree the layout, materials and a timeline that suits you, and handle planning and building warrants where needed — so you always know what's happening and when.
Our team gets to work — groundworks, structure, joinery, plumbing and finishing — to a high standard, keeping you informed and the site tidy throughout.
We complete the final details, clean up and hand over your newly built or renovated space, ready to enjoy — backed by our workmanship guarantee.
Where we work
A local team based in Clydebank and working across Glasgow and the surrounding area. Don't see your town? We travel for the right project — just ask.
Good to know
The questions we hear most. Can't find your answer? Reach out and we'll get straight back to you.
Still wondering about something?
Every building project is different, and so is every question. Get in touch for a free quote and we'll talk through your space, your budget and your options.
Get a Free Quote
CONTACT US
Give us a call or send a text — we'll come out, assess your space and send a clear, competitive quote. No pressure, no obligation.

Community
Proud to support our local community and grassroots sport in Glasgow.