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M B Building & Construction Ltd is a trusted extension builder serving customers in Bisley and the surrounding area. Contact us to today to get a c...
Russell Worcester
R & R Roofing Guildford are here to help customers who need an Extension Builder in Bisley. We offer a competitive rate to complete all your extens...
ASAP Roofing & Exterior Maintenance is a trusted extension builder serving customers in Bisley and the surrounding area. Contact us to today to get...
A & S Construction is an established and experienced local extension builder in Bisley. Please contact us for a free, no obligation quote and compe...
Experienced extension builder ready to quote for your work. A L King Services is the best extension builder in Bisley. No obligation free quotes an...
From 2007 – 2015 David Rudelhoff (Founder and Director) was the Property Manager for a high profile, high net worth family. During that time, in ...
Relax... you have found a reliable extension builder in Bisley. K & J Builders & Decorators is a friendly and reliable company based in Bisley who ...
Kendall Construction is an established and experienced local extension builder in Bisley. Please contact us for a free, no obligation quote and com...
Experienced extension builder ready to quote for your work. ADW Roofing Services is the best extension builder in Bisley. No obligation free quotes...
Ayling & Sons Roofing Ltd is an established and experienced local extension builder in Bisley. Please contact us for a free, no obligation quote an...

Building a granny annexe ranges from £86,976 (R & R Roofing Guildford based in KT14) to £87,472 (ASAP Roofing & Exterior Maintenance based in SL5), 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 Bisley by posting a job with HaMuch. We will send it to extension builders in Bisley who will be happy to help you.
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Granny Annexe near Woking | £43 | £277 |
| Granny Annexe near Camberley | £40 | £268 |
| Granny Annexe near Ascot | £41 | £276 |
| Granny Annexe near Ash Vale | £41 | £277 |
| Granny Annexe near New Haw | £43 | £273 |
| Granny Annexe near Farnborough | £41 | £272 |
| Granny Annexe near Guildford | £53 | £298 |
| Granny Annexe near Sandhurst | £40 | £268 |
| Granny Annexe near Egham | £42 | £266 |
| Granny Annexe near Bracknell | £40 | £269 |
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 - £17,792

Two storey extension - £88,438

Build a timber frame extension - £26,292

Build a swimming pool - £81,292

Single storey extension - £60,840

Side return extension - £44,785

Install an RSJ - £2,492

Outbuilding - £10,292

Build a Mansard loft conversion - £52,292

Loft conversion - £36,488

Build a kitchen extension - £42,292

Hip to gable loft conversion - £42,292

Granny annexe - £87,292

Garden office - £10,292

Convert a Garage - £16,292

Garage - £18,792

Build a flat roof extension - £22,292

Build a dormer loft conversion - £42,292

Concrete foundations - £6,542

Convert a bungalow loft - £29,292

Convert a basement - £40,785