From £26,048
Experienced extension builder ready to quote for your work. J&J Building Solutions is the best extension builder in E4. No obligation free quotes a...
From £26,048
Trusted and professional extension builder in E4. Experienced in all extension buildering work and keeping within budget and on quote. WHITE EAGLE ...
From £26,392
Need an Extension Builder in E4? Samuele Paolini has been helping local clients (5 mile radius) with their extension buildering jobs for many year...
From £25,920
Masonic Plumbing and Heating Ltd are here to help customers who need an Extension Builder in E4. We offer a competitive rate to complete all your e...
From £26,192
Gb construction are here to help customers who need an Extension Builder in E4. We offer a competitive rate to complete all your extension builder...
From £26,184
Experienced extension builder ready to quote for your work. CC&D BUILDING LTD is the best extension builder in E4. No obligation free quotes and ma...
From £26,312
Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of extension builde...
From £26,560
Our homes need to be regularly maintained and from time to time they need to be rejuvenated, modernised and enhanced. When it comes to building wor...
From £26,096
Experienced extension builder ready to quote for your work. Mr is the best extension builder in E4. No obligation free quotes and many happy custom...
From £25,984
JK Doors is a trusted extension builder serving customers in E4 and the surrounding area. Contact us to today to get a competitive quote for extens...

A timber frame extension built in E4 typically ranges from £25,920 (Masonic Plumbing and Heating Ltd based in BR2) to £26,560 (Rafix Building based in EN4), but this will vary depending on the size of your extension, the design features you'd like and what your soil is like for the foundations.
Comparing extension builders estimates for building a timber frame extension gives you an idea of who will be better value, but the best way to compare costs is to get actual quotes.
Get rates and quotes to build a timber frame extension in E4 by posting a job with HaMuch and we'll send it to extension builders in E4.
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 - £17,674

Two storey extension - £88,260

Build a timber frame extension - £26,174

Build a swimming pool - £81,174

Single storey extension - £58,472

Side return extension - £43,453

Install an RSJ - £2,374

Outbuilding - £10,174

Build a Mansard loft conversion - £52,174

Loft conversion - £35,378

Build a kitchen extension - £42,174

Hip to gable loft conversion - £42,174

Granny annexe - £87,174

Garden office - £10,174

Convert a Garage - £16,174

Garage - £18,674

Build a flat roof extension - £22,174

Build a dormer loft conversion - £42,174

Concrete foundations - £6,424

Convert a bungalow loft - £29,174

Convert a basement - £39,453