From £21,608
Trusted and professional extension builder in WA11. Experienced in all extension buildering work and keeping within budget and on quote. M L R Buil...
From £21,664
Need an Extension Builder in WA11? KMC Brickwork has been helping local clients (20 mile radius) with their extension buildering jobs for many year...
From £21,224
MJ Barker & Son is an established extension buildering business in WA11. We come highly recommended and provide competitive quotes for your work.
From £21,872
G. Finnigan Builders is an established extension buildering business in WA11. We come highly recommended and provide competitive quotes for your wo...
From £21,800
Higher End Construction Limited is an established extension buildering business in WA11. We come highly recommended and provide competitive quotes ...
From £21,800
Need to find an Extension Builder near you for all your extension buildering work?
J R Building Services provides a local, trusted extensio...
From £21,864
Need to find an Extension Builder near you for all your extension buildering work?
Maintenance Point provides a local, trusted extension bu...
From £21,600
Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of extension builde...
From £21,896
HIGHTOWN CONSTRUCTION LTD is an established extension buildering business in WA11. We come highly recommended and provide competitive quotes for yo...
From £21,720
Direct Building Services is an established and experienced local extension builder in WA11. Please contact us for a free, no obligation quote and c...

A flat roof extension ranges from the cheapest of £21,224 (MJ Barker & Son based in WA11) to the dearest of £21,896 (HIGHTOWN CONSTRUCTION LTD based in L34), 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 WA11 by posting a job with HaMuch. We'll send it to extension builders in WA11.
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Build A Flat Roof Extension near St Helens | £31 | £224 |
| Build A Flat Roof Extension near Ashton-in-Makerfield | £30 | £220 |
| Build A Flat Roof Extension near Newton-le-Willows | £31 | £221 |
| Build A Flat Roof Extension near Orrell | £29 | £214 |
| Build A Flat Roof Extension near Prescot | £33 | £239 |
| Build A Flat Roof Extension near Golborne | £30 | £222 |
| Build A Flat Roof Extension near Knowsley | £32 | £236 |
| Build A Flat Roof Extension near Skelmersdale | £29 | £211 |
| Build A Flat Roof Extension near Wigan | £30 | £219 |
| Build A Flat Roof Extension near Huyton with Roby | £33 | £240 |
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 - £17,205

Two storey extension - £87,557

Build a timber frame extension - £25,705

Build a swimming pool - £80,705

Single storey extension - £49,096

Side return extension - £38,179

Install an RSJ - £1,905

Outbuilding - £9,705

Build a Mansard loft conversion - £51,705

Loft conversion - £30,983

Build a kitchen extension - £41,705

Hip to gable loft conversion - £41,705

Granny annexe - £86,705

Garden office - £9,705

Convert a Garage - £15,705

Garage - £18,205

Build a flat roof extension - £21,705

Build a dormer loft conversion - £41,705

Concrete foundations - £5,955

Convert a bungalow loft - £28,705

Convert a basement - £34,179