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Relax... you have found a reliable extension builder in Formby. KM Building Services is a friendly and reliable company based in Formby who conside...
Looking for an Extension Builder near Formby for all your extension buildering jobs?
Evergreen Developments Nw Ltd pr...
BTC Bernstef Ltd is an established extension buildering business in Formby. We come highly recommended and provide competitive quotes for your work...
Thomas Healey
Need an Extension Builder in Formby? T&T Building Contractors has been helping local clients (20 mile radius) with their extension buildering jobs ...
CJ Construction are here to help customers who need an Extension Builder in Formby. We offer a competitive rate to complete all your extension buil...
Prestige Property Conversions Ltd is an established extension buildering business in Formby. We come highly recommended and provide competitive quo...
From £21,304
John Scarisbrick
Local reliable family business
Free estimates
Clean friendly service
From £21,672
KOR BUILDING SERVICES is an established and experienced local extension builder in Formby. Please contact us for a free, no obligation quote and co...
From £21,712
PARKFIELD CONSTRUCTION LTD is an established extension buildering business in Formby. We come highly recommended and provide competitive quotes for...

A flat roof extension ranges from the cheapest of £21,272 (A.K.S based in L40) to the dearest of £22,000 (Evergreen Developments Nw Ltd based in PR8), 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 Formby by posting a job with HaMuch. We'll send it to extension builders in Formby.
"Flat roof extension" - FORMBY, job posted 01/01/70
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Build A Flat Roof Extension near Formby | £28 | £206 |
| Build A Flat Roof Extension near Sefton | £35 | £234 |
| Build A Flat Roof Extension near Crosby | £35 | £234 |
| Build A Flat Roof Extension near Southport | £27 | £198 |
| Build A Flat Roof Extension near Maghull | £34 | £231 |
| Build A Flat Roof Extension near Ormskirk | £29 | £206 |
| Build A Flat Roof Extension near Bootle | £33 | £228 |
| Build A Flat Roof Extension near West Lancashire | £28 | £203 |
| Build A Flat Roof Extension near Kirkby | £31 | £224 |
| Build A Flat Roof Extension near Wallasey | £32 | £224 |
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 - £17,122

Two storey extension - £87,434

Build a timber frame extension - £25,622

Build a swimming pool - £80,622

Single storey extension - £47,448

Side return extension - £37,252

Install an RSJ - £1,822

Outbuilding - £9,622

Build a Mansard loft conversion - £51,622

Loft conversion - £30,210

Build a kitchen extension - £41,622

Hip to gable loft conversion - £41,622

Granny annexe - £86,622

Garden office - £9,622

Convert a Garage - £15,622

Garage - £18,122

Build a flat roof extension - £21,622

Build a dormer loft conversion - £41,622

Concrete foundations - £5,872

Convert a bungalow loft - £28,622

Convert a basement - £33,252