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JK Doors
JK Doors is a trusted extension builder serving customers in WC1H and the surrounding area. Contact us to today to get a competitive quote for exte...
Torrington
Torrington Design
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
SLS BUILDERS LIMITED
SLS BUILDERS LIMITED is a trusted extension builder serving customers in WC1H and the surrounding area. Contact us to today to get a competitive qu...
First guard Roofing
Darren Bergin
Relax... you have found a reliable extension builder in WC1H. First guard Roofing is a friendly and reliable company based in WC1H who consider no ...
CK Constructions & Development Ltd
CK Constructions & Development Ltd is a trusted extension builder serving customers in WC1H and the surrounding area. Contact us to today to get a ...
JM Building Services
JM Building Services is a trusted extension builder serving customers in WC1H and the surrounding area. Contact us to today to get a competitive qu...
ELJHANI BUILDING & PROPERTY MANAGEMENT SERVICES LTD
Hussein Eljhani
We are highly professional Builders Company, hones pricing and reliable, we leave all areas clean and tidy.
Buildwiser
Buildwiser is a trusted extension builder serving customers in WC1H and the surrounding area. Contact us to today to get a competitive quote for ex...
From £4,264
Q Lofts and Extensions
Anthony Sullivan
We build Lofts. We build Extensions. We undertake conversions. Our Terms and conditions apply as shown in our starter packs.
From £2,352
plansing
Plansing Ltd
Experience the best architectural design services with PLANSING, where we flawlessly integrate innovative architectural designer products to bring ...
RSJ cost in WC1H
How much RSJs cost for supply and installation varies depending on the size, type and load-bearing properties, but in WC1H it ranges from £2,176 (SLS BUILDERS LIMITED based in NW5) to £4,264 (Q Lofts and Extensions based in EC1R).
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 WC1H by posting a job with HaMuch and we will send it to extension builders in WC1H.
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Estimates for common extension builder jobs in WC1H;
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 - £17,882
Two storey extension - £88,574
Build a timber frame extension - £26,382
Build a swimming pool - £81,382
Single storey extension - £62,648
Side return extension - £45,802
Install an RSJ - £2,582
Outbuilding - £10,382
Build a Mansard loft conversion - £52,382
Loft conversion - £37,335
Build a kitchen extension - £42,382
Hip to gable loft conversion - £42,382
Granny annexe - £87,382
Garden office - £10,382
Convert a Garage - £16,382
Garage - £18,882
Build a flat roof extension - £22,382
Build a dormer loft conversion - £42,382
Concrete foundations - £6,632
Convert a bungalow loft - £29,382
Convert a basement - £41,802