From £10,048
Experienced extension builder ready to quote for your work. J&J Building Solutions is the best extension builder in RM11. No obligation free quotes...
From £10,392
Need an Extension Builder in RM11? Samuele Paolini has been helping local clients (5 mile radius) with their extension buildering jobs for many ye...
From £10,048
Trusted and professional extension builder in RM11. Experienced in all extension buildering work and keeping within budget and on quote. WHITE EAGL...
From £9,920
Masonic Plumbing and Heating Ltd are here to help customers who need an Extension Builder in RM11. We offer a competitive rate to complete all your...
From £10,184
Experienced extension builder ready to quote for your work. CC&D BUILDING LTD is the best extension builder in RM11. No obligation free quotes and ...
From £10,560
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 £10,096
Experienced extension builder ready to quote for your work. Mr is the best extension builder in RM11. No obligation free quotes and many happy cust...
From £9,984
JK Doors is a trusted extension builder serving customers in RM11 and the surrounding area. Contact us to today to get a competitive quote for exte...
From £10,192
NIECEIC / NAAPIT GASSAFE WATER REGULATIONS We offer services towards completion of high end construction projects to dis...
From £10,312
skilled worker who specializes in completing a wide range of building and renovation projects

Garden offices range from the cheapest of £9,920 (Masonic Plumbing and Heating Ltd based in BR2) to the dearest of £10,560 (Rafix Building based in EN4), but these are only estimates.
The best way to compare costs is to get actual quotes.
Get rates and quotes to build a garden office in RM11 by posting a job with HaMuch. We'll send it to extension builders in RM11.
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