Robuild - Waterwise is an established extension buildering business in Sefton. 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 Sefton. 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...
BTC Bernstef Ltd is an established extension buildering business in Sefton. We come highly recommended and provide competitive quotes for your work...
J.M.C Building Services is a trusted extension builder serving customers in Sefton and the surrounding area. Contact us to today to get a competiti...
Need an Extension Builder in Sefton? Bob the Builder has been helping local clients (20 mile radius) with their extension buildering jobs for many ...
Thomas Healey
Need an Extension Builder in Sefton? T&T Building Contractors has been helping local clients (20 mile radius) with their extension buildering jobs ...
Peter Gallagher
Experienced extension builder ready to quote for your work. P & P Building Services is the best extension builder in Sefton. No obligation free quo...
CJ Construction are here to help customers who need an Extension Builder in Sefton. We offer a competitive rate to complete all your extension buil...

Outbuilding costs in Sefton range from the cheapest of £8,032 (T&T Building Contractors based in L23) to the dearest of £9,952 (DW Brickwork based in CH46), but these are just estimates.
Comparing extension builders estimates for building an outbuilding gives you an idea of who will be better value, but the best way to compare costs is to get actual quotes.
Get rates and quotes to build an outbuilding in Sefton by posting a job with HaMuch and we will send it to extension builders.
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Outbuilding near Sefton | £33 | £221 |
| Outbuilding near Crosby | £33 | £223 |
| Outbuilding near Formby | £23 | £162 |
| Outbuilding near Bootle | £32 | £224 |
| Outbuilding near Maghull | £33 | £220 |
| Outbuilding near Wallasey | £32 | £224 |
| Outbuilding near Kirkby | £31 | £224 |
| Outbuilding near Liverpool | £31 | £222 |
| Outbuilding near Ormskirk | £29 | £206 |
| Outbuilding 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 - £17,112

Two storey extension - £87,418

Build a timber frame extension - £25,612

Build a swimming pool - £80,612

Single storey extension - £47,240

Side return extension - £37,135

Install an RSJ - £1,812

Outbuilding - £9,612

Build a Mansard loft conversion - £51,612

Loft conversion - £30,113

Build a kitchen extension - £41,612

Hip to gable loft conversion - £41,612

Granny annexe - £86,612

Garden office - £9,612

Convert a Garage - £15,612

Garage - £18,112

Build a flat roof extension - £21,612

Build a dormer loft conversion - £41,612

Concrete foundations - £5,862

Convert a bungalow loft - £28,612

Convert a basement - £33,135