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BPS Building
Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of extension builde...
SH Enterprise
Need the extension buildering job done quickly without breaking the bank? SH Enterprise offer fast, reliable, and affordable extension buildering s...
SLS BUILDERS LIMITED
SLS BUILDERS LIMITED is a trusted extension builder serving customers in Mayfair and the surrounding area. Contact us to today to get a competitive...
M & A UK Ltd
Relax... you have found a reliable extension builder in Mayfair. M & A UK Ltd is a friendly and reliable company based in Mayfair who consider no j...
First guard Roofing
Darren Bergin
Relax... you have found a reliable extension builder in Mayfair. First guard Roofing is a friendly and reliable company based in Mayfair who consid...
D & G Building & Decorating
Experienced extension builder ready to quote for your work. D & G Building & Decorating is the best extension builder in Mayfair. No obligation fre...
CK Constructions & Development Ltd
CK Constructions & Development Ltd is a trusted extension builder serving customers in Mayfair and the surrounding area. Contact us to today to get...
A to Z Builders Ltd
A to Z Builders Ltd are here to help customers who need an Extension Builder in Mayfair. We offer a competitive rate to complete all your extension...
Cornerstones Construction
Experienced extension builder ready to quote for your work. Cornerstones Construction is the best extension builder in Mayfair. No obligation free ...
JK Doors
JK Doors is a trusted extension builder serving customers in Mayfair and the surrounding area. Contact us to today to get a competitive quote for e...
Extension builder estimates (based on hourly rates) to build a single storey extension in Mayfair
- How much does a single storey extension cost?
- Single storey extension cost calculator
- What size single storey extension can I build without planning permission?
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Estimates for common extension builder jobs in Mayfair;
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 - £17,638
Two storey extension - £88,206
Build a timber frame extension - £26,138
Build a swimming pool - £81,138
Single storey extension - £57,752
Side return extension - £43,048
Install an RSJ - £2,338
Outbuilding - £10,138
Build a Mansard loft conversion - £52,138
Loft conversion - £35,040
Build a kitchen extension - £42,138
Hip to gable loft conversion - £42,138
Granny annexe - £87,138
Garden office - £10,138
Convert a Garage - £16,138
Garage - £18,638
Build a flat roof extension - £22,138
Build a dormer loft conversion - £42,138
Concrete foundations - £6,388
Convert a bungalow loft - £29,138
Convert a basement - £39,048