From £21,872
G. Finnigan Builders is an established extension buildering business in WA10. We come highly recommended and provide competitive quotes for your wo...
From £21,664
Need an Extension Builder in WA10? KMC Brickwork has been helping local clients (20 mile radius) with their extension buildering jobs for many year...
From £21,608
Trusted and professional extension builder in WA10. Experienced in all extension buildering work and keeping within budget and on quote. M L R Buil...
From £21,880
Need to find an Extension Builder near you for all your extension buildering work?
Leabra Construction North West Ltd provides a local, tru...
From £21,896
HIGHTOWN CONSTRUCTION LTD is an established extension buildering business in WA10. We come highly recommended and provide competitive quotes for yo...
From £21,224
MJ Barker & Son is an established extension buildering business in WA10. We come highly recommended and provide competitive quotes for your work.
From £22,032
Hello, I am Allan. I have run Allan Rowe Property Services since September 2014. I am based in Newton Le Willows and provide a wide range of proper...
From £21,800
Event planning interior designer new to buisness platform but have project managed a lot of my own home projects and organised events for birthdays...
From £22,376
We are Aurora Building Company & we are the home improvement company you can depend upon to help transform your home to suit your needs. We spe...
From £21,800
Higher End Construction Limited is an established extension buildering business in WA10. We come highly recommended and provide competitive quotes ...

A flat roof extension ranges from the cheapest of £21,224 (MJ Barker & Son based in WA11) to the dearest of £22,376 (Aurora Building company ltd based in L12), 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 WA10 by posting a job with HaMuch. We'll send it to extension builders in WA10.
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Build A Flat Roof Extension near St Helens | £31 | £224 |
| Build A Flat Roof Extension near Prescot | £31 | £223 |
| Build A Flat Roof Extension near Knowsley | £31 | £222 |
| Build A Flat Roof Extension near Huyton with Roby | £31 | £225 |
| Build A Flat Roof Extension near Newton-le-Willows | £31 | £221 |
| Build A Flat Roof Extension near Ashton-in-Makerfield | £30 | £220 |
| Build A Flat Roof Extension near Widnes | £31 | £220 |
| Build A Flat Roof Extension near Kirkby | £31 | £223 |
| Build A Flat Roof Extension near Orrell | £29 | £214 |
| Build A Flat Roof Extension near Halton | £31 | £220 |
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 - £17,315

Two storey extension - £87,723

Build a timber frame extension - £25,815

Build a swimming pool - £80,815

Single storey extension - £51,304

Side return extension - £39,421

Install an RSJ - £2,015

Outbuilding - £9,815

Build a Mansard loft conversion - £51,815

Loft conversion - £32,018

Build a kitchen extension - £41,815

Hip to gable loft conversion - £41,815

Granny annexe - £86,815

Garden office - £9,815

Convert a Garage - £15,815

Garage - £18,315

Build a flat roof extension - £21,815

Build a dormer loft conversion - £41,815

Concrete foundations - £6,065

Convert a bungalow loft - £28,815

Convert a basement - £35,421