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DS Builders
Relax... you have found a reliable extension builder in G4. DS Builders is a friendly and reliable company based in G4 who consider no job as too b...
"Single storey extension" - G64, job posted 08/09/26
"Single storey extension" - G23, job posted 22/08/26
Adelphi Design & Construction Ltd
Adelphi Design & Construction Ltd is an established and experienced local extension builder in G4. Please contact us for a free, no obligation quot...
"Loft conversion" - GLASGOW, job posted 22/03/26
Gman-Joinery & Builders
Need an Extension Builder in G4? Gman-Joinery & Builders has been helping local clients (20 mile radius) with their extension buildering jobs for m...
"Two storey side extension, front porch extension, internal renovations." - GLASGOW, job posted 27/11/25
£35/hr
£253/day
Whyte homes
Whyte homes are here to help customers who need an Extension Builder in G4. We offer a competitive rate to complete all your extension buildering j...
"Lay a concrete foundation" - G33, job posted 27/09/25
£37/hr
£274/day
KB Contractors
If you’ve been searching for ‘Builder’s near me’ then look no further than KB Contractors . As local Builders, we’ve established...
"Loft conversion" - GLASGOW, job posted 08/07/25
£33/hr
£248/day
nest
nest is an established extension buildering business in G4. We come highly recommended and provide competitive quotes for your work.
"Dormer loft conversion" - GLASGOW, job posted 28/05/25
£33/hr
£244/day
Arkiton Design & Build
Arkiton is one of the first combined architecture and construction companies in Glasgow, founded in 2017 by our in-house architect. Our aim is to s...
"Need an extension builder" - G53, job posted 19/05/25
£38/hr
£285/day
Arkiton
Relax... you have found a reliable extension builder in G4. Arkiton is a friendly and reliable company based in G4 who consider no job as too big o...
"Need an extension builder" - GLASGOW, job posted 15/05/25
£27/hr
£208/day
J & S Autos (Glasgow) Ltd
Need an Extension Builder in G4? J & S Autos (Glasgow) Ltd has been helping local clients (20 mile radius) with their extension buildering jobs for...
"Loft conversion" - GLASGOW, job posted 14/05/25
£32/hr
£244/day
Green Olive Projects LTD
Relax... you have found a reliable extension builder in G4. Green Olive Projects LTD is a friendly and reliable company based in G4 who consider no...
"Use an existing conservatory footing to replace it with a single storey timber kit extension size 5 x 2.5 m, if cost permit wil be interested to extend this 1m on each sides - 7 x 2.5 M." - G61, job posted 17/04/25
£30/hr
£224/day
Slimline Property Services
Slimline Property Services is an established extension buildering business in G4. We come highly recommended and provide competitive quotes for you...
"Dormer room conversion. Frame and structure building as well as stair case installation." - G53, job posted 16/04/25
£39/hr
£289/day
KFM Developments LTD
Passionate about creating special, unique property renovations.
"Loft conversion" - GLASGOW, job posted 05/08/24
£35/hr
£259/day
Bradshaw Contracts Ltd
We are a well-established, family-run building business of father and son and friendly building experts who will help you every step of the way, en...
"Loft conversion" - GLASGOW, job posted 20/04/24
£38/hr
£282/day
Assured Building Management
We are a full design & build consultancy offering project management services targeting small to medium residential projects such as kitchen & bath...
"Loft conversion" - GLASGOW, job posted 28/01/24
The most important thing is do avoid handing over cash or paying large sums in advance. Be wary of paying cash for a cheaper job, i.e. to avoid VAT, you may be going down a slippery slope of not doing things properly which may eventually mean your job is also not done properly.
Agree when you intend to pay, ideally after you are satisfied with the completed job. If it is a big job agree a schedule of staged payments which is fair to both parties.
To avoid bad tradespeople and to ensure you can find them should they not answer a mobile;
- Get proper contact details and check them yourself
- Check if the company is verified on the Companies House website
- Get phone details, ideally a land line or 0800 number and check it
- Get a physical office address
Get quotes in writing by email or in person if possible. Getting quotes online or by text is ok (make sure you accept the offer by replying). For large projects make a written agreement, schedule of works and snagging plans as part of a working document. Also;
- Agree expected quality of workmanship and materials in advance
- When will work start and when will project be finished, what happens if project over runs ?
- How long is the guarantee on work and materials eg 12 months
- Discuss onsite behaviour in advance (no smoking, swearing or using mobile phones for non-work purposes)
- Agree that your Extension Builder will remove all debris and rubbish and what level of tidying up you want after job
Compare G4 extension builders rates
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Extension Builders near Glasgow | £35 | £259 |
| Extension Builders near Bishopbriggs | £35 | £262 |
| Extension Builders near Rutherglen | £34 | £255 |
| Extension Builders near Bearsden | £34 | £263 |
| Extension Builders near Cambuslang | £34 | £250 |
| Extension Builders near Giffnock | £35 | £260 |
| Extension Builders near Renfrew | £35 | £264 |
| Extension Builders near Kirkintilloch | £35 | £258 |
| Extension Builders near Blantyre | £33 | £240 |
| Extension Builders near Paisley | £34 | £259 |
Job estimates from extension builders near you
Whether you’re looking to extend your kitchen with a side return extension or you want to convert your basement into a liveable space, read our cost guides to get an idea of how much each project costs before getting a more accurate quote from our database of reliable tradespeople.
Build a timber frame extension - £26,016
Garden office - £10,016
Granny annexe - £87,016
Build a flat roof extension - £22,016
Convert a Garage - £16,016
Hip to gable loft conversion - £42,016
Convert a bungalow loft - £29,016
Build a dormer loft conversion - £42,016
Build a swimming pool - £81,016
Build a Mansard loft conversion - £52,016
Concrete foundations - £6,266
Underpin a building - £17,516
Two storey extension - £88,024
Convert a basement - £37,680
Side return extension - £41,680
Loft conversion - £33,900
Garage - £18,516
Single storey extension - £55,320
Outbuilding - £10,016
Install an RSJ - £2,216
Build a kitchen extension - £42,016
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