From £10,360
Need an Extension Builder in RM3? Ellis & James Builders Limited has been helping local clients (20 mile radius) with their extension buildering jo...
1 review
From £10,192
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 £10,024
Need the extension buildering job done quickly without breaking the bank? SH Enterprise offer fast, reliable, and affordable extension buildering s...
From £10,008
Over 35 years experience
We are Gas Safe registered
We are Verified
We pride ourselves on great custom...
From £10,392
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 £10,152
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 £11,024
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 £10,312
Local Boiler Plumbing & Heating Services is an established and experienced local extension builder in RM3. Please contact us for a free, no obligat...
From £10,184
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 £10,184
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...

Garden offices range from the cheapest of £10,008 (Thoroughbuild UK Services Ltd based in SS4) to the dearest of £11,024 (Buci builders ltd based in SE27), 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 RM3 by posting a job with HaMuch. We'll 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 - £17,783

Two storey extension - £88,425

Build a timber frame extension - £26,283

Build a swimming pool - £81,283

Single storey extension - £60,664

Side return extension - £44,686

Install an RSJ - £2,483

Outbuilding - £10,283

Build a Mansard loft conversion - £52,283

Loft conversion - £36,405

Build a kitchen extension - £42,283

Hip to gable loft conversion - £42,283

Granny annexe - £87,283

Garden office - £10,283

Convert a Garage - £16,283

Garage - £18,783

Build a flat roof extension - £22,283

Build a dormer loft conversion - £42,283

Concrete foundations - £6,533

Convert a bungalow loft - £29,283

Convert a basement - £40,686