From £21,960
Dagenham, RM10
L.C.Hills Building & Refurbishment Services is an established extension buildering business in RM10. We come highly recommended and provide competi...
From £22,064
AV Builders London Limited is a trusted extension builder serving customers in RM10 and the surrounding area. Contact us to today to get a competit...
From £22,128
Dagenham, RM10
Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of extension builde...
From £22,048
RNB BUILDERS LTD is an established and experienced local extension builder in RM10. Please contact us for a free, no obligation quote and competiti...
From £23,120
Dagenham, RM10
Gusttydo Ltd with 12 years experience in Construction !
Building a good reputation for our customers!...
From £22,144
Trusted and professional extension builder in RM10. Experienced in all extension buildering work and keeping within budget and on quote. Valkon Bui...
From £22,136
Dagenham, RM10
Experienced extension builder ready to quote for your work. N & D Builders is the best extension builder in RM10. No obligation free quotes and man...
From £22,328
Need an Extension Builder in RM10? Tony Rutter has been helping local clients (10 mile radius) with their extension buildering jobs for many years....
From £22,384
london, RM10
EDMT DEVELOPMENTS LTD is a trusted extension builder serving customers in RM10 and the surrounding area. Contact us to today to get a competitive q...
From £22,104
At EDMT Developments Ltd, we have built a reputation throughout London as one of the best and most trusted teams, by offering the most comprehensiv...

A flat roof extension ranges from the cheapest of £21,960 (L.C.Hills Building & Refurbishment Services based in RM10) to the dearest of £23,120 (Gusttydo Ltd based in RM10), but these are just estimates. While they give you an idea of who will be better value, the best way to compare costs is to get real quotes.
Find out how much your flat roof extension will cost in RM10 by posting a job with HaMuch. We'll send it to extension builders in RM10.
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 - £17,742

Two storey extension - £88,362

Build a timber frame extension - £26,242

Build a swimming pool - £81,242

Single storey extension - £59,832

Side return extension - £44,218

Install an RSJ - £2,442

Outbuilding - £10,242

Build a Mansard loft conversion - £52,242

Loft conversion - £36,015

Build a kitchen extension - £42,242

Hip to gable loft conversion - £42,242

Granny annexe - £87,242

Garden office - £10,242

Convert a Garage - £16,242

Garage - £18,742

Build a flat roof extension - £22,242

Build a dormer loft conversion - £42,242

Concrete foundations - £6,492

Convert a bungalow loft - £29,242

Convert a basement - £40,218