From £21,760
Dacol Services is Swindons number 1 property maintenance service.
Trusted by many letting agents, landlords, homeowners, and hoteliers.
From £21,824
R & R BUILDERS is an established and experienced local extension builder in SN2. Please contact us for a free, no obligation quote and competitive ...
From £21,680
Trusted and professional extension builder in SN2. Experienced in all extension buildering work and keeping within budget and on quote. G R & Son h...
From £21,696
CORE CONSTRUCTION is an established extension buildering business in SN2. We come highly recommended and provide competitive quotes for your work.<...
From £21,920
Complete Driveway Solutions is an established and experienced local extension builder in SN2. Please contact us for a free, no obligation quote and...
From £21,888
ABC Builders is a trusted extension builder serving customers in SN2 and the surrounding area. Contact us to today to get a competitive quote for e...
From £21,872
Craig Donnelly Building Contractors Ltd is a trusted extension builder serving customers in SN2 and the surrounding area. Contact us to today to ge...
From £21,456
Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of extension builde...
From £22,072
We have a skilled and dedicated team of professional tradesmen to carry out all your requirements. Whether you are looking to build, extend or upgr...
From £22,312
Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of extension builde...

A flat roof extension ranges from the cheapest of £21,456 (Watts Builders based in SN25) to the dearest of £22,312 (The trade collective ltd based in Sn1), 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 SN2 by posting a job with HaMuch. We'll send it to extension builders in SN2.
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Build A Flat Roof Extension near Stratton St Margaret | £37 | £238 |
| Build A Flat Roof Extension near Swindon | £38 | £238 |
| Build A Flat Roof Extension near Thamesdown | £38 | £239 |
| Build A Flat Roof Extension near Vale of White Horse | £36 | £271 |
| Build A Flat Roof Extension near Calne | £29 | £225 |
| Build A Flat Roof Extension near West Wiltshire | £32 | £242 |
| Build A Flat Roof Extension near North Wiltshire | £32 | £242 |
| Build A Flat Roof Extension near Devizes | £32 | £242 |
| Build A Flat Roof Extension near Witney | £32 | £244 |
| Build A Flat Roof Extension near Chippenham | £34 | £258 |
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 - £17,348

Two storey extension - £87,772

Build a timber frame extension - £25,848

Build a swimming pool - £80,848

Single storey extension - £51,960

Side return extension - £39,790

Install an RSJ - £2,048

Outbuilding - £9,848

Build a Mansard loft conversion - £51,848

Loft conversion - £32,325

Build a kitchen extension - £41,848

Hip to gable loft conversion - £41,848

Granny annexe - £86,848

Garden office - £9,848

Convert a Garage - £15,848

Garage - £18,348

Build a flat roof extension - £21,848

Build a dormer loft conversion - £41,848

Concrete foundations - £6,098

Convert a bungalow loft - £28,848

Convert a basement - £35,790