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GMB BUILDING SERVICES is an established and experienced local extension builder in Stockley Park. Please contact us for a free, no obligation quote...
Nirvair Builders is an established extension buildering business in Stockley Park. We come highly recommended and provide competitive quotes for yo...
Trusted and professional extension builder in Stockley Park. Experienced in all extension buildering work and keeping within budget and on quote. D...
Bill Matharu
Matharu Buildings is an established extension buildering business in Stockley Park. We come highly recommended and provide competitive quotes for y...
Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of extension builde...
Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of extension builde...
Trusted and professional extension builder in Stockley Park. Experienced in all extension buildering work and keeping within budget and on quote. S...
Need an Extension Builder in Stockley Park? Ava Constructions & Decors Ltd has been helping local clients (10 mile radius) with their extension bui...
Bhupinder Singh
Trusted and professional extension builder in Stockley Park. Experienced in all extension buildering work and keeping within budget and on quote. E...
Relax... you have found a reliable extension builder in Stockley Park. RODOF Ltd is a friendly and reliable company based in Stockley Park who cons...

How much RSJs cost for supply and installation varies depending on the size, type and load-bearing properties, but in Stockley Park it ranges from £2,088 (Nirvair Builders based in UB3) to £2,632 (GMB BUILDING SERVICES based in UB8).
Comparing extension builders estimates for fitting an RSJ 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 install an RSJ in Stockley Park by posting a job with HaMuch and we will send it to extension builders in Stockley Park.
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 - £17,686

Two storey extension - £88,278

Build a timber frame extension - £26,186

Build a swimming pool - £81,186

Single storey extension - £58,712

Side return extension - £43,588

Install an RSJ - £2,386

Outbuilding - £10,186

Build a Mansard loft conversion - £52,186

Loft conversion - £35,490

Build a kitchen extension - £42,186

Hip to gable loft conversion - £42,186

Granny annexe - £87,186

Garden office - £10,186

Convert a Garage - £16,186

Garage - £18,686

Build a flat roof extension - £22,186

Build a dormer loft conversion - £42,186

Concrete foundations - £6,436

Convert a bungalow loft - £29,186

Convert a basement - £39,588