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 £21,752
Need an Extension Builder in L2? ARGYLE BUILDING AND MAINTENANCE has been helping local clients (20 mile radius) with their extension buildering jo...
From £21,792
J J Nuttall Specialist Roofing Ltd are here to help customers who need an Extension Builder in L2. We offer a competitive rate to complete all your...
From £22,016
Art Henry's are here to help customers who need an Extension Builder in L2. We offer a competitive rate to complete all your extension buildering j...
From £21,904
Glassrooms is an established extension buildering business in L2. We come highly recommended and provide competitive quotes for your work.
From £21,672
J.M.C Building Services is a trusted extension builder serving customers in L2 and the surrounding area. Contact us to today to get a competitive q...
From £21,800
Experienced extension builder ready to quote for your work. Oxygen Property Partners is the best extension builder in L2. No obligation free quote...
From £21,736
Trusted and professional extension builder in L2. Experienced in all extension buildering work and keeping within budget and on quote. MA Roofing &...
From £21,664
Accro Building Services is an established extension buildering business in L2. We come highly recommended and provide competitive quotes for your w...
From £21,696
Robuild - Waterwise is an established extension buildering business in L2. We come highly recommended and provide competitive quotes for your work....

A flat roof extension ranges from the cheapest of £21,664 (Accro Building Services based in CH44) 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 L2 by posting a job with HaMuch. We'll send it to extension builders in L2.
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Build A Flat Roof Extension near Liverpool | £31 | £222 |
| Build A Flat Roof Extension near Birkenhead | £31 | £219 |
| Build A Flat Roof Extension near Wallasey | £32 | £224 |
| Build A Flat Roof Extension near Bootle | £32 | £223 |
| Build A Flat Roof Extension near Wirral | £31 | £219 |
| Build A Flat Roof Extension near Bebington | £31 | £222 |
| Build A Flat Roof Extension near Crosby | £33 | £222 |
| Build A Flat Roof Extension near Kirkby | £31 | £223 |
| Build A Flat Roof Extension near Huyton with Roby | £31 | £225 |
| Build A Flat Roof Extension near Knowsley | £31 | £222 |
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 - £17,300

Two storey extension - £87,700

Build a timber frame extension - £25,800

Build a swimming pool - £80,800

Single storey extension - £51,000

Side return extension - £39,250

Install an RSJ - £2,000

Outbuilding - £9,800

Build a Mansard loft conversion - £51,800

Loft conversion - £31,875

Build a kitchen extension - £41,800

Hip to gable loft conversion - £41,800

Granny annexe - £86,800

Garden office - £9,800

Convert a Garage - £15,800

Garage - £18,300

Build a flat roof extension - £21,800

Build a dormer loft conversion - £41,800

Concrete foundations - £6,050

Convert a bungalow loft - £28,800

Convert a basement - £35,250