From £9,736
Relax... you have found a reliable extension builder in L18. R Sargeant is a friendly and reliable company based in L18 who consider no job as too ...
From £9,976
Nathan Thomas Plumbing is an established extension buildering business in L18. We come highly recommended and provide competitive quotes for your w...
From £9,816
DK Building is an established extension buildering business in L18. We come highly recommended and provide competitive quotes for your work.
From £10,088
Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of extension builde...
From £9,872
Experienced extension builder ready to quote for your work. Elevate Finishing is the best extension builder in L18. No obligation free quotes and m...
From £9,800
Experienced extension builder ready to quote for your work. Oxygen Property Partners is the best extension builder in L18. No obligation free quot...
From £10,016
Art Henry's are here to help customers who need an Extension Builder in L18. We offer a competitive rate to complete all your extension buildering ...
From £10,304
Experienced extension builder ready to quote for your work. Spectrum is the best extension builder in L18. No obligation free quotes and many happy...
From £9,104
Liverpool Direct Builders is a trusted extension builder serving customers in L18 and the surrounding area. Contact us to today to get a competitiv...
From £9,752
Need an Extension Builder in L18? ARGYLE BUILDING AND MAINTENANCE has been helping local clients (20 mile radius) with their extension buildering j...

Garden offices range from the cheapest of £9,104 (Liverpool Direct Builders based in L14) to the dearest of £10,304 (Spectrum based in L14), but these are only estimates.
The best way to compare costs is to get actual quotes.
Get rates and quotes to build a garden office in L18 by posting a job with HaMuch. We'll send it to extension builders in L18.
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Garden Office near Liverpool | £31 | £222 |
| Garden Office near Huyton with Roby | £31 | £225 |
| Garden Office near Knowsley | £31 | £222 |
| Garden Office near Bebington | £31 | £222 |
| Garden Office near Birkenhead | £31 | £219 |
| Garden Office near Prescot | £31 | £223 |
| Garden Office near Wallasey | £32 | £224 |
| Garden Office near Bootle | £32 | £223 |
| Garden Office near Kirkby | £31 | £223 |
| Garden Office near Widnes | £31 | £220 |
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 - £17,346

Two storey extension - £87,770

Build a timber frame extension - £25,846

Build a swimming pool - £80,846

Single storey extension - £51,928

Side return extension - £39,772

Install an RSJ - £2,046

Outbuilding - £9,846

Build a Mansard loft conversion - £51,846

Loft conversion - £32,310

Build a kitchen extension - £41,846

Hip to gable loft conversion - £41,846

Granny annexe - £86,846

Garden office - £9,846

Convert a Garage - £15,846

Garage - £18,346

Build a flat roof extension - £21,846

Build a dormer loft conversion - £41,846

Concrete foundations - £6,096

Convert a bungalow loft - £28,846

Convert a basement - £35,772