Experienced extension builder ready to quote for your work. A L King Services is the best extension builder in GU20. No obligation free quotes and ...
Kendall Construction is an established and experienced local extension builder in GU20. Please contact us for a free, no obligation quote and compe...
ASAP Roofing & Exterior Maintenance is a trusted extension builder serving customers in GU20 and the surrounding area. Contact us to today to get a...
Experienced extension builder ready to quote for your work. GM Bailey and Sons Ltd is the best extension builder in GU20. No obligation free quotes...
Andrew Davies
We have been in the trade for some years now and offer a wide range of services from decorating through to complete refurbishment .
From £17,900
Dan
HSL BUILDING SERVICES are here to help customers who need an Extension Builder in GU20. We offer a competitive rate to complete all your extension...
From £17,788
BRICK CONSTRUCTION is a trusted extension builder serving customers in GU20 and the surrounding area. Contact us to today to get a competitive quot...
From £17,436
BESPOKE BUILDING SOLUTIONS is an established and experienced local extension builder in GU20. Please contact us for a free, no obligation quote and...
From £17,468
JORDAN CONSTRUCTION LTD are here to help customers who need an Extension Builder in GU20. We offer a competitive rate to complete all your extensio...
From £17,532
I have been remodelling and restyling homes for over 35 years ; creating amazing spaces to live and making people happy is my passion , my hobby an...

Underpinning ranges from £17,436 (D and D Property Maintenance based in RG12) to £17,972 (Kendall Construction based in GU19), but the final cost will depend on the method of underpinning used, how much of your foundations need underpinning and where you live.
Comparing extension builders estimates for underpinning gives you an idea of who will be better value but the best way to compare costs is to get actual quotes.
Get quotes to underpin your home in GU20 by posting a job with HaMuch and we will send it to extension builders in GU20.
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Underpin A Building near Ascot | £41 | £276 |
| Underpin A Building near Camberley | £41 | £282 |
| Underpin A Building near Bracknell | £41 | £285 |
| Underpin A Building near Bracknell Forest | £41 | £287 |
| Underpin A Building near Sandhurst | £41 | £283 |
| Underpin A Building near Woking | £43 | £277 |
| Underpin A Building near Egham | £42 | £266 |
| Underpin A Building near Farnborough | £41 | £272 |
| Underpin A Building near New Haw | £43 | £273 |
| Underpin A Building near Staines-upon-Thames | £42 | £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 - £17,679

Two storey extension - £88,269

Build a timber frame extension - £26,179

Build a swimming pool - £81,179

Single storey extension - £58,584

Side return extension - £43,516

Install an RSJ - £2,379

Outbuilding - £10,179

Build a Mansard loft conversion - £52,179

Loft conversion - £35,430

Build a kitchen extension - £42,179

Hip to gable loft conversion - £42,179

Granny annexe - £87,179

Garden office - £10,179

Convert a Garage - £16,179

Garage - £18,679

Build a flat roof extension - £22,179

Build a dormer loft conversion - £42,179

Concrete foundations - £6,429

Convert a bungalow loft - £29,179

Convert a basement - £39,516