From £1,872
Trusted and professional extension builder in Topsham. Experienced in all extension buildering work and keeping within budget and on quote. C P Con...
From £1,712
Relax... you have found a reliable extension builder in Topsham. KARLINE CONSTRUCTION LTD is a friendly and reliable company based in Topsham who c...
From £2,200
Reliable family run business established in 2003. All work previously undertaken has been generated purely through word of mouth and recommendation...
From £2,024
Livewest is a trusted extension builder serving customers in Topsham and the surrounding area. Contact us to today to get a competitive quote for e...
From £2,120
Need an Extension Builder in Topsham? Sales Consultant - LiveWest has been helping local clients (20 mile radius) with their extension buildering j...
From £1,976
Relax... you have found a reliable extension builder in Topsham. R BREWER CONSTRUCTION LTD is a friendly and reliable company based in Topsham who ...
From £2,152
The House Mechanic are here to help customers who need an Extension Builder in Topsham. We offer a competitive rate to complete all your extension ...
From £1,832
F8 CONSTRUCTION LIMITED is an established extension buildering business in Topsham. We come highly recommended and provide competitive quotes for y...
From £2,176
Blake Services is a trusted extension builder serving customers in Topsham and the surrounding area. Contact us to today to get a competitive quote...
From £2,048
A successful East Devon Building Contractor with a solid 35-years combined experience and reputation.Build One is the brainchild of Dan Walkey and ...

How much RSJs cost for supply and installation varies depending on the size, type and load-bearing properties, but in Topsham it ranges from £1,712 (KARLINE CONSTRUCTION LTD based in EX2) to £2,200 (WEBB & SONS (SW) LTD based in EX1).
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 Topsham by posting a job with HaMuch and we will send it to extension builders in Topsham.
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Install An RSJ near Exeter | £27 | £221 |
| Install An RSJ near Exmouth | £24 | £210 |
| Install An RSJ near East Devon | £27 | £221 |
| Install An RSJ near Teignbridge | £27 | £260 |
| Install An RSJ near Newton Abbot | £27 | £236 |
| Install An RSJ near Torquay | £28 | £223 |
| Install An RSJ near Tiverton | £25 | £202 |
| Install An RSJ near Torbay | £27 | £223 |
| Install An RSJ near Paignton | £27 | £222 |
| Install An RSJ near Taunton | £31 | £242 |
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 - £17,311

Two storey extension - £87,717

Build a timber frame extension - £25,811

Build a swimming pool - £80,811

Single storey extension - £51,224

Side return extension - £39,376

Install an RSJ - £2,011

Outbuilding - £9,811

Build a Mansard loft conversion - £51,811

Loft conversion - £31,980

Build a kitchen extension - £41,811

Hip to gable loft conversion - £41,811

Granny annexe - £86,811

Garden office - £9,811

Convert a Garage - £15,811

Garage - £18,311

Build a flat roof extension - £21,811

Build a dormer loft conversion - £41,811

Concrete foundations - £6,061

Convert a bungalow loft - £28,811

Convert a basement - £35,376