From £86,736
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 £86,976
Nathan Thomas Plumbing is an established extension buildering business in L18. We come highly recommended and provide competitive quotes for your w...
From £86,816
DK Building is an established extension buildering business in L18. We come highly recommended and provide competitive quotes for your work.
From £87,088
Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of extension builde...
From £86,872
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 £86,800
Experienced extension builder ready to quote for your work. Oxygen Property Partners is the best extension builder in L18. No obligation free quot...
From £87,016
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 £87,304
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 £86,104
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 £86,752
Need an Extension Builder in L18? ARGYLE BUILDING AND MAINTENANCE has been helping local clients (20 mile radius) with their extension buildering j...

Building a granny annexe ranges from £86,104 (Liverpool Direct Builders based in L14) to £87,304 (Spectrum based in L14), but these are just estimates that can help give you an idea of who will be better value in your area.
The best thing to do is to get quotes to build a granny annexe in L18 by posting a job with HaMuch. We will send it to extension builders in L18 who will be happy to help you.
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Granny Annexe near Liverpool | £31 | £222 |
| Granny Annexe near Huyton with Roby | £31 | £225 |
| Granny Annexe near Knowsley | £31 | £222 |
| Granny Annexe near Bebington | £31 | £222 |
| Granny Annexe near Birkenhead | £31 | £219 |
| Granny Annexe near Prescot | £31 | £223 |
| Granny Annexe near Wallasey | £32 | £224 |
| Granny Annexe near Bootle | £32 | £223 |
| Granny Annexe near Kirkby | £31 | £223 |
| Granny Annexe 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