From £22,000
MID Construct is an established and experienced local extension builder in Ampney St Mary. Please contact us for a free, no obligation quote and c...
From £21,800
Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of extension builde...
From £21,960
Deadsmooth Plastering & Building Co is a trusted extension builder serving customers in Ampney St Mary and the surrounding area. Contact us to toda...
From £21,880
Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of extension builde...
From £22,000
L&P Developments Ltd is an established and experienced local extension builder in Ampney St Mary. Please contact us for a free, no obligation quot...
From £21,776
Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of extension builde...
From £22,184
Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of extension builde...
From £22,152
Prestige Build Services LTD is a trusted extension builder serving customers in Ampney St Mary and the surrounding area. Contact us to today to get...
From £21,536
Need an Extension Builder in Ampney St Mary? R PEARCE BUILDING has been helping local clients (20 mile radius) with their extension buildering jobs...
From £22,096
MJ solutions is an established and experienced local extension builder in Ampney St Mary. Please contact us for a free, no obligation quote and co...

A flat roof extension ranges from the cheapest of £21,536 (R PEARCE BUILDING based in SN15) to the dearest of £22,184 (Sunshine Builders Services based in GL4), 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 Ampney St Mary by posting a job with HaMuch. We'll send it to extension builders in Ampney St Mary.
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Build A Flat Roof Extension near Thamesdown | £38 | £239 |
| 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 Stroud | £33 | £249 |
| Build A Flat Roof Extension near Cheltenham | £32 | £250 |
| Build A Flat Roof Extension near Gloucester | £31 | £236 |
| Build A Flat Roof Extension near Quedgeley | £32 | £247 |
| Build A Flat Roof Extension near Witney | £32 | £244 |
| Build A Flat Roof Extension near Vale of White Horse | £36 | £271 |
| Build A Flat Roof Extension near Calne | £29 | £225 |
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 - £17,438

Two storey extension - £87,908

Build a timber frame extension - £25,938

Build a swimming pool - £80,938

Single storey extension - £53,768

Side return extension - £40,807

Install an RSJ - £2,138

Outbuilding - £9,938

Build a Mansard loft conversion - £51,938

Loft conversion - £33,173

Build a kitchen extension - £41,938

Hip to gable loft conversion - £41,938

Granny annexe - £86,938

Garden office - £9,938

Convert a Garage - £15,938

Garage - £18,438

Build a flat roof extension - £21,938

Build a dormer loft conversion - £41,938

Concrete foundations - £6,188

Convert a bungalow loft - £28,938

Convert a basement - £36,807