From £6,602
Greater London, BR3
Placebell are here to help customers who need an Extension Builder in BR3. We offer a competitive rate to complete all your extension buildering jo...
From £6,074
Livo builders is a trusted extension builder serving customers in BR3 and the surrounding area. Contact us to today to get a competitive quote for...
From £6,274
Greater London, BR3
Relax... you have found a reliable extension builder in BR3. Ressi is a friendly and reliable company based in BR3 who consider no job as too big o...
From £6,202
Need an Extension Builder in BR3? Hatfield-Marcus has been helping local clients (10 mile radius) with their extension buildering jobs for many yea...
From £6,554
Kent, BR3
HouseForce is a privately owned specialist decorating and property refurbishment business. Offering a wide variety of services from local painting...
From £6,242
Cre8tive Contractors Ltd are here to help customers who need an Extension Builder in BR3. We offer a competitive rate to complete all your extensio...
From £6,666
Beckenham, BR3
CROMARTY CONSTRUCTION is a trusted extension builder serving customers in BR3 and the surrounding area. Contact us to today to get a competitive qu...
From £6,146
Speargold Ltd is a trusted extension builder serving customers in BR3 and the surrounding area. Contact us to today to get a competitive quote for ...
From £6,594
Kent, BR3
Relax... you have found a reliable extension builder in BR3. Glenn Miller Builders Limited is a friendly and reliable company based in BR3 who cons...
From £6,546
Experienced extension builder ready to quote for your work. Aviemore Building Contractors Ltd is the best extension builder in BR3. No obligation f...

Concrete foundations range from the £6,074 (Livo builders based in Br3) to £6,666 (CROMARTY CONSTRUCTION based in BR3) in BR3.
Comparing extension builders estimates for laying concrete foundations gives you an idea of who will be better value, but the best way to compare costs is to get actual quotes.
Find out the exact cost of laying concrete foundations in BR3 by posting a job with HaMuch. We will send it to extension builders who can give you a detailed quote.
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 - £17,640

Two storey extension - £88,210

Build a timber frame extension - £26,140

Build a swimming pool - £81,140

Single storey extension - £57,800

Side return extension - £43,075

Install an RSJ - £2,340

Outbuilding - £10,140

Build a Mansard loft conversion - £52,140

Loft conversion - £35,063

Build a kitchen extension - £42,140

Hip to gable loft conversion - £42,140

Granny annexe - £87,140

Garden office - £10,140

Convert a Garage - £16,140

Garage - £18,640

Build a flat roof extension - £22,140

Build a dormer loft conversion - £42,140

Concrete foundations - £6,390

Convert a bungalow loft - £29,140

Convert a basement - £39,075