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ARI Studio LTD
Her, WD7
Need to find an Extension Builder near you for all your extension buildering work?
ARI Studio LTD provides a local, trusted extension build...
From £32,850
LF Gjabri Contractions Ltd
Astrit Gjabri
Very good builder Brick work block work ground fencin drive ways patios extension New building no job to small
From £34,350
Griggs Homes
Radlett, WD7
Griggs Homes is an established extension buildering business in WD7. We come highly recommended and provide competitive quotes for your work.
From £35,100
ADS Builders
Relax... you have found a reliable extension builder in WD7. ADS Builders is a friendly and reliable company based in WD7 who consider no job as to...
Cheapest builders for loft conversion in WD7
Comparing extension builders estimates for Loft conversion gives you an idea of who will be better value but the best way to compare costs is to get actual quotes.
What to do - Get rates and quotes for the cost of a loft conversion in WD7 by posting your job to extension builders in WD7.
"Loft conversion" - WD7, job posted 30/08/26
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Estimates for common extension builder jobs in WD7;
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 - £17,538
Two storey extension - £88,057
Build a timber frame extension - £26,038
Build a swimming pool - £81,038
Single storey extension - £55,760
Side return extension - £41,928
Install an RSJ - £2,238
Outbuilding - £10,038
Build a Mansard loft conversion - £52,038
Loft conversion - £34,106
Build a kitchen extension - £42,038
Hip to gable loft conversion - £42,038
Granny annexe - £87,038
Garden office - £10,038
Convert a Garage - £16,038
Garage - £18,538
Build a flat roof extension - £22,038
Build a dormer loft conversion - £42,038
Concrete foundations - £6,288
Convert a bungalow loft - £29,038
Convert a basement - £37,928