From £21,472
Trusted and professional extension builder in Rainford. Experienced in all extension buildering work and keeping within budget and on quote. Jones ...
From £21,672
J.M.C Building Services is a trusted extension builder serving customers in Rainford and the surrounding area. Contact us to today to get a competi...
From £21,776
Relax... you have found a reliable extension builder in Rainford. David Anderson Builders is a friendly and reliable company based in Rainford who ...
From £21,792
Need to find an Extension Builder near you for all your extension buildering work?
DC Contractors provides a local, trusted extension build...
From £21,960
Need to find an Extension Builder near you for all your extension buildering work?
ESBP Specialists Ltd provides a local, trusted extension...
From £21,896
Need to find an Extension Builder near you for all your extension buildering work?
J & C Barker (Builders) Limited provides a local, truste...
From £21,584
Amak Construction is an established and experienced local extension builder in Rainford. Please contact us for a free, no obligation quote and comp...
From £21,768
Wallplas is an established extension buildering business in Rainford. We come highly recommended and provide competitive quotes for your work.
...From £21,688
WWS Garage Doors & Shutters is a trusted extension builder serving customers in Rainford and the surrounding area. Contact us to today to get a com...
From £21,632
Fishers Building & Paving Ltd is an established extension buildering business in Rainford. We come highly recommended and provide competitive quote...

A flat roof extension ranges from the cheapest of £21,472 (Jones Landscaping based in L30) to the dearest of £21,960 (ESBP Specialists Ltd based in M26), 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 Rainford by posting a job with HaMuch. We'll send it to extension builders in Rainford.
| 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 | £31 | £223 |
| Build A Flat Roof Extension near Golborne | £30 | £222 |
| Build A Flat Roof Extension near Knowsley | £31 | £222 |
| Build A Flat Roof Extension near Skelmersdale | £28 | £210 |
| Build A Flat Roof Extension near Wigan | £30 | £220 |
| Build A Flat Roof Extension near Huyton with Roby | £31 | £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 - £17,224

Two storey extension - £87,586

Build a timber frame extension - £25,724

Build a swimming pool - £80,724

Single storey extension - £49,480

Side return extension - £38,395

Install an RSJ - £1,924

Outbuilding - £9,724

Build a Mansard loft conversion - £51,724

Loft conversion - £31,163

Build a kitchen extension - £41,724

Hip to gable loft conversion - £41,724

Granny annexe - £86,724

Garden office - £9,724

Convert a Garage - £15,724

Garage - £18,224

Build a flat roof extension - £21,724

Build a dormer loft conversion - £41,724

Concrete foundations - £5,974

Convert a bungalow loft - £28,724

Convert a basement - £34,395