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Relax... you have found a reliable extension builder in Colindale. L H Builders is a friendly and reliable company based in Colindale who consider ...
Need to find an Extension Builder near you for all your extension buildering work?
Fitz Building Services Limited provides a local, trusted...
EDGWARE BUILDER are here to help customers who need an Extension Builder in Colindale. We offer a competitive rate to complete all your extension b...
Colindale, NW9
HARLEY BUILDING SERVICES LTD are here to help customers who need an Extension Builder in Colindale. We offer a competitive rate to complete all you...
D Bradshaw Building Renovation is a trusted extension builder serving customers in Colindale and the surrounding area. Contact us to today to get a...
Samuele Paolini
Need an Extension Builder in Colindale? Samuele Paolini has been helping local clients (5 mile radius) with their extension buildering jobs for ma...
Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of extension builde...
J Wijayamohan
JJSR Construction Ltd is an established and experienced local extension builder in Colindale. Please contact us for a free, no obligation quote and...
Need to find an Extension Builder near you for all your extension buildering work?
BELLVIEW BUILDERS LTD provides a local, trusted extensio...
Ciaran Feeney
Need to find an Extension Builder near you for all your extension buildering work?
COMPLETE CIVIL ENGINEERING provides a local, trusted ext...

In Colindale, prices for dormer loft conversions range from £41,960 (HARLEY BUILDING SERVICES LTD based in NW9) to £42,440 (COMPLETE CIVIL ENGINEERING based in HA8), but how much your conversion costs will vary depending on the size of your property, how easy access to your roof is and what you want to use the space for.
The best way to get an accurate price is to compare quotes from extension builders in Colindale. Post your job on HaMuch now and we'll put you in touch with available extension builders.
"Dormer loft conversion" - HA8, job posted 03/06/26
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 - £17,702

Two storey extension - £88,302

Build a timber frame extension - £26,202

Build a swimming pool - £81,202

Single storey extension - £59,032

Side return extension - £43,768

Install an RSJ - £2,402

Outbuilding - £10,202

Build a Mansard loft conversion - £52,202

Loft conversion - £35,640

Build a kitchen extension - £42,202

Hip to gable loft conversion - £42,202

Granny annexe - £87,202

Garden office - £10,202

Convert a Garage - £16,202

Garage - £18,702

Build a flat roof extension - £22,202

Build a dormer loft conversion - £42,202

Concrete foundations - £6,452

Convert a bungalow loft - £29,202

Convert a basement - £39,768