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Select your affordable GL4 extension builder
Need to find an Extension Builder near you for all your extension buildering work?
CB Home Improvements, Roofing & Building Solutions provi...
Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of extension builde...
Deadsmooth Plastering & Building Co is a trusted extension builder serving customers in GL4 and the surrounding area. Contact us to today to get a ...
Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of extension builde...
Lawrence Jones
L&P Developments Ltd is an established and experienced local extension builder in GL4. Please contact us for a free, no obligation quote and compe...
Experienced extension builder ready to quote for your work. RSG Construction is the best extension builder in GL4. No obligation free quotes and ma...
Relax... you have found a reliable extension builder in GL4. Archway Builders Ltd is a friendly and reliable company based in GL4 who consider no j...
From £22,224
Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of extension builde...
From £21,832
Relax... you have found a reliable extension builder in GL4. M CHAPMAN BUILDER is a friendly and reliable company based in GL4 who consider no job ...
From £21,288
Philip McCoy
my Name is Philip I have over 20years exsperance in the building trade we give a very good and reliable service

A flat roof extension ranges from the cheapest of £21,288 (P J M Building Services based in GL1) to the dearest of £22,224 (G MANN BUILDERS based in GL2), but these are just estimates. While they give you an idea of who will be better value, the best way to compare costs is to get real quotes.
Find out how much your flat roof extension will cost in GL4 by posting a job with HaMuch. We'll send it to extension builders in GL4.
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Build A Flat Roof Extension near Gloucester | £31 | £246 |
| Build A Flat Roof Extension near Quedgeley | £31 | £247 |
| Build A Flat Roof Extension near Stroud | £33 | £249 |
| Build A Flat Roof Extension near Cheltenham | £32 | £250 |
| Build A Flat Roof Extension near Great Malvern | £31 | £244 |
| Build A Flat Roof Extension near Evesham | £35 | £264 |
| Build A Flat Roof Extension near Yate | £34 | £263 |
| Build A Flat Roof Extension near Wychavon | £35 | £269 |
| Build A Flat Roof Extension near Thamesdown | £31 | £239 |
| Build A Flat Roof Extension near South Gloucestershire | £34 | £260 |
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.

Underpin a building - £17,482

Two storey extension - £87,974

Build a timber frame extension - £25,982

Build a swimming pool - £80,982

Single storey extension - £54,648

Side return extension - £41,302

Install an RSJ - £2,182

Outbuilding - £9,982

Build a Mansard loft conversion - £51,982

Loft conversion - £33,585

Build a kitchen extension - £41,982

Hip to gable loft conversion - £41,982

Granny annexe - £86,982

Garden office - £9,982

Convert a Garage - £15,982

Garage - £18,482

Build a flat roof extension - £21,982

Build a dormer loft conversion - £41,982

Concrete foundations - £6,232

Convert a bungalow loft - £28,982

Convert a basement - £37,302