From £21,976
Nathan Thomas Plumbing is an established extension buildering business in L11. We come highly recommended and provide competitive quotes for your w...
From £21,472
Trusted and professional extension builder in L11. Experienced in all extension buildering work and keeping within budget and on quote. Jones Lands...
From £21,672
J.M.C Building Services is a trusted extension builder serving customers in L11 and the surrounding area. Contact us to today to get a competitive ...
From £22,032
Tong Building & Joinery Ltd are here to help customers who need an Extension Builder in L11. We offer a competitive rate to complete all your exten...
From £22,056
AJ Solutions is an established extension buildering business in L11. We come highly recommended and provide competitive quotes for your work.
From £21,608
Relax... you have found a reliable extension builder in L11. R A C Gas is a friendly and reliable company based in L11 who consider no job as too b...
From £21,696
G P Roofing & Building Service is a trusted extension builder serving customers in L11 and the surrounding area. Contact us to today to get a compe...
From £21,792
EBI BUILDING RENOVATIONS is a trusted extension builder serving customers in L11 and the surrounding area. Contact us to today to get a competitive...
From £21,688
Experienced extension builder ready to quote for your work. BURGHWOOD CONSTRUCTION LTD is the best extension builder in L11. No obligation free quo...
From £21,768
Relax... you have found a reliable extension builder in L11. Crown Construction Lancs Ltd is a friendly and reliable company based in L11 who consi...

A flat roof extension ranges from the cheapest of £21,472 (Jones Landscaping based in L30) to the dearest of £22,056 (AJ Solutions based in CH1), 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 L11 by posting a job with HaMuch. We'll send it to extension builders in L11.
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Build A Flat Roof Extension near Kirkby | £31 | £223 |
| Build A Flat Roof Extension near Bootle | £32 | £223 |
| Build A Flat Roof Extension near Knowsley | £31 | £222 |
| Build A Flat Roof Extension near Prescot | £31 | £223 |
| Build A Flat Roof Extension near Liverpool | £31 | £222 |
| Build A Flat Roof Extension near Huyton with Roby | £31 | £225 |
| Build A Flat Roof Extension near Maghull | £33 | £219 |
| Build A Flat Roof Extension near Crosby | £33 | £222 |
| Build A Flat Roof Extension near Wallasey | £32 | £224 |
| Build A Flat Roof Extension near Birkenhead | £31 | £219 |
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 - £17,276

Two storey extension - £87,664

Build a timber frame extension - £25,776

Build a swimming pool - £80,776

Single storey extension - £50,520

Side return extension - £38,980

Install an RSJ - £1,976

Outbuilding - £9,776

Build a Mansard loft conversion - £51,776

Loft conversion - £31,650

Build a kitchen extension - £41,776

Hip to gable loft conversion - £41,776

Granny annexe - £86,776

Garden office - £9,776

Convert a Garage - £15,776

Garage - £18,276

Build a flat roof extension - £21,776

Build a dormer loft conversion - £41,776

Concrete foundations - £6,026

Convert a bungalow loft - £28,776

Convert a basement - £34,980