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Peter Gallagher
Experienced extension builder ready to quote for your work. P & P Building Services is the best extension builder in Crosby. No obligation free quo...
J.M.C Building Services is a trusted extension builder serving customers in Crosby and the surrounding area. Contact us to today to get a competiti...
Relax... you have found a reliable extension builder in Crosby. KM Building Services is a friendly and reliable company based in Crosby who conside...
Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of extension builde...
Need an Extension Builder in Crosby? Bob the Builder has been helping local clients (20 mile radius) with their extension buildering jobs for many ...
Robuild - Waterwise is an established extension buildering business in Crosby. We come highly recommended and provide competitive quotes for your w...
Need to find an Extension Builder near you for all your extension buildering work?
S.L.P Property Maintenance provides a local, trusted ext...
Trusted and professional extension builder in Crosby. Experienced in all extension buildering work and keeping within budget and on quote. DW Brick...
Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of extension builde...
Crosby, L23
BTC Bernstef Ltd is an established extension buildering business in Crosby. We come highly recommended and provide competitive quotes for your work...

A flat roof extension ranges from the cheapest of £21,576 (BTC Bernstef Ltd based in L23) to the dearest of £21,952 (DW Brickwork based in CH46), 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 Crosby by posting a job with HaMuch. We'll send it to extension builders in Crosby.
"Flat roof extension" - FORMBY, job posted 01/01/70
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Build A Flat Roof Extension near Crosby | £35 | £234 |
| Build A Flat Roof Extension near Sefton | £35 | £234 |
| Build A Flat Roof Extension near Bootle | £33 | £228 |
| Build A Flat Roof Extension near Maghull | £34 | £231 |
| Build A Flat Roof Extension near Formby | £28 | £206 |
| Build A Flat Roof Extension near Wallasey | £32 | £224 |
| Build A Flat Roof Extension near Kirkby | £31 | £224 |
| Build A Flat Roof Extension near Liverpool | £31 | £222 |
| Build A Flat Roof Extension near Birkenhead | £31 | £219 |
| Build A Flat Roof Extension near Ormskirk | £29 | £206 |
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 - £17,280

Two storey extension - £87,670

Build a timber frame extension - £25,780

Build a swimming pool - £80,780

Single storey extension - £50,600

Side return extension - £39,025

Install an RSJ - £1,980

Outbuilding - £9,780

Build a Mansard loft conversion - £51,780

Loft conversion - £31,688

Build a kitchen extension - £41,780

Hip to gable loft conversion - £41,780

Granny annexe - £86,780

Garden office - £9,780

Convert a Garage - £15,780

Garage - £18,280

Build a flat roof extension - £21,780

Build a dormer loft conversion - £41,780

Concrete foundations - £6,030

Convert a bungalow loft - £28,780

Convert a basement - £35,025