HAMPTON CONSTRUCTION LTD are here to help customers who need an Extension Builder in Sl6 6s. We offer a competitive rate to complete all your exten...
Relax... you have found a reliable extension builder in Sl6 6s. ABC Associates STRUCTURES 4 U is a friendly and reliable company based in Sl6 6s wh...
Trusted and professional extension builder in Sl6 6s. Experienced in all extension buildering work and keeping within budget and on quote. TENNORCR...
EIC Builders Ltd are here to help customers who need an Extension Builder in Sl6 6s. We offer a competitive rate to complete all your extension bui...
Our building services company A Iqbal Construction Ltd was established in 2018. Since then, we have been helping customers in Slough and the surrou...
Experienced extension builder ready to quote for your work. Rai Builders is the best extension builder in Sl6 6s. No obligation free quotes and man...
Ani Mokashi is an established and experienced local extension builder in Sl6 6s. Please contact us for a free, no obligation quote and competitive ...
B.A Ruffle Building Contractor is an established extension buildering business in Sl6 6s. We come highly recommended and provide competitive quotes...
BeautifulRenovation are here to help customers who need an Extension Builder in Sl6 6s. We offer a competitive rate to complete all your extension ...
Mario
Trusted and professional extension builder in Sl6 6s. Experienced in all extension buildering work and keeping within budget and on quote. Mario Po...

Building a granny annexe ranges from £86,912 (TENNORCREST CONSTRUCTION based in SL6) to £87,384 (HAMPTON CONSTRUCTION LTD based in SL2), 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 Sl6 6s by posting a job with HaMuch. We will send it to extension builders in Sl6 6s who will be happy to help you.
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Granny Annexe near Maidenhead | £41 | £273 |
| Granny Annexe near High Wycombe | £39 | £272 |
| Granny Annexe near Windsor | £41 | £271 |
| Granny Annexe near Slough | £42 | £272 |
| Granny Annexe near Windsor & Maidenhead | £42 | £272 |
| Granny Annexe near Wycombe | £39 | £271 |
| Granny Annexe near Bracknell Forest | £41 | £287 |
| Granny Annexe near Hazlemere | £40 | £272 |
| Granny Annexe near Bracknell | £41 | £285 |
| Granny Annexe near Woodley | £42 | £266 |
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 - £17,630

Two storey extension - £88,196

Build a timber frame extension - £26,130

Build a swimming pool - £81,130

Single storey extension - £57,608

Side return extension - £42,967

Install an RSJ - £2,330

Outbuilding - £10,130

Build a Mansard loft conversion - £52,130

Loft conversion - £34,973

Build a kitchen extension - £42,130

Hip to gable loft conversion - £42,130

Granny annexe - £87,130

Garden office - £10,130

Convert a Garage - £16,130

Garage - £18,630

Build a flat roof extension - £22,130

Build a dormer loft conversion - £42,130

Concrete foundations - £6,380

Convert a bungalow loft - £29,130

Convert a basement - £38,967