From £21,848
Need to find an Extension Builder near you for all your extension buildering work?
KTS provides a local, trusted extension buildering servi...
From £21,672
J.M.C Building Services is a trusted extension builder serving customers in L5 and the surrounding area. Contact us to today to get a competitive q...
From £21,792
J J Nuttall Specialist Roofing Ltd are here to help customers who need an Extension Builder in L5. We offer a competitive rate to complete all your...
From £21,968
Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of extension builde...
From £21,904
Need an Extension Builder in L5? Bob the Builder has been helping local clients (20 mile radius) with their extension buildering jobs for many year...
From £21,752
Need an Extension Builder in L5? ARGYLE BUILDING AND MAINTENANCE has been helping local clients (20 mile radius) with their extension buildering jo...
From £21,872
Relax... you have found a reliable extension builder in L5. Britannia Builders is a friendly and reliable company based in L5 who consider no job a...
From £21,760
CJ Construction are here to help customers who need an Extension Builder in L5. We offer a competitive rate to complete all your extension builderi...
From £22,016
Art Henry's are here to help customers who need an Extension Builder in L5. We offer a competitive rate to complete all your extension buildering j...
From £21,768
Relax... you have found a reliable extension builder in L5. KM Building Services is a friendly and reliable company based in L5 who consider no job...

A flat roof extension ranges from the cheapest of £21,672 (J.M.C Building Services based in L4) to the dearest of £22,016 (Art Henry's based in L8), 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 L5 by posting a job with HaMuch. We'll send it to extension builders in L5.
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Build A Flat Roof Extension near Liverpool | £33 | £232 |
| Build A Flat Roof Extension near Bootle | £34 | £235 |
| Build A Flat Roof Extension near Wallasey | £34 | £236 |
| Build A Flat Roof Extension near Birkenhead | £33 | £232 |
| Build A Flat Roof Extension near Crosby | £34 | £223 |
| Build A Flat Roof Extension near Kirkby | £33 | £242 |
| Build A Flat Roof Extension near Wirral | £31 | £219 |
| Build A Flat Roof Extension near Bebington | £31 | £222 |
| Build A Flat Roof Extension near Sefton | £34 | £221 |
| Build A Flat Roof Extension near Knowsley | £32 | £236 |
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 - £17,335

Two storey extension - £87,753

Build a timber frame extension - £25,835

Build a swimming pool - £80,835

Single storey extension - £51,704

Side return extension - £39,646

Install an RSJ - £2,035

Outbuilding - £9,835

Build a Mansard loft conversion - £51,835

Loft conversion - £32,205

Build a kitchen extension - £41,835

Hip to gable loft conversion - £41,835

Granny annexe - £86,835

Garden office - £9,835

Convert a Garage - £15,835

Garage - £18,335

Build a flat roof extension - £21,835

Build a dormer loft conversion - £41,835

Concrete foundations - £6,085

Convert a bungalow loft - £28,835

Convert a basement - £35,646