1 review
From £39,660
NIECEIC / NAAPIT GASSAFE WATER REGULATIONS We offer services towards completion of high end construction projects to dis...
"Did callout made safe my elctrical work thanks" - reviewed 16/05/23, REECYRUSSO
From £37,770
Need the extension buildering job done quickly without breaking the bank? SH Enterprise offer fast, reliable, and affordable extension buildering s...
From £37,590
Over 35 years experience
We are Gas Safe registered
We are Verified
We pride ourselves on great custom...
From £41,910
Need an Extension Builder in RM3? Samuele Paolini has been helping local clients (5 mile radius) with their extension buildering jobs for many yea...
From £39,210
I am a qualified, builder, electrician and plumber. I have been working in the construction industry for over 23 years and have built everything fr...
From £49,020
Buci builders ltd is a trusted extension builder serving customers in RM3 and the surrounding area. Contact us to today to get a competitive quote ...
From £41,010
Local Boiler Plumbing & Heating Services is an established and experienced local extension builder in RM3. Please contact us for a free, no obligat...
From £39,570
Experienced extension builder ready to quote for your work. CC&D BUILDING LTD is the best extension builder in RM3. No obligation free quotes and m...
From £39,570
Relax... you have found a reliable extension builder in RM3. First guard Roofing is a friendly and reliable company based in RM3 who consider no jo...
From £44,430
HOUSE BUILDING SERVICES LIMITED is a trusted extension builder serving customers in RM3 and the surrounding area. Contact us to today to get a comp...

Comparing extension builders estimates for a Convert a basement 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 to convert a basement in RM3 by posting a job with HaMuch and we will send it to extension builders in RM3.
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 - £17,809

Two storey extension - £88,463

Build a timber frame extension - £26,309

Build a swimming pool - £81,309

Single storey extension - £61,176

Side return extension - £44,974

Install an RSJ - £2,509

Outbuilding - £10,309

Build a Mansard loft conversion - £52,309

Loft conversion - £36,645

Build a kitchen extension - £42,309

Hip to gable loft conversion - £42,309

Granny annexe - £87,309

Garden office - £10,309

Convert a Garage - £16,309

Garage - £18,809

Build a flat roof extension - £22,309

Build a dormer loft conversion - £42,309

Concrete foundations - £6,559

Convert a bungalow loft - £29,309

Convert a basement - £40,974