From £2,544
We work closely with our Clients to provide the most suitable procurement route to suit each Client’s requirements and aspirations. We are experi...
From £2,736
We provide structural engineering design and construction service (D&B) Our dedicated, enthusiastic and highly qualified staff to find the appropri...
From £2,232
Guildford, GU1
Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of extension builde...
From £2,592
Cannon Build Solutions is a local family-run building firm whose strong reliable reputation has been well established in North-West London and Buck...
From £3,336
Guildford, GU3
Paramount Brickwork Limited is an established extension buildering business in Guildford. We come highly recommended and provide competitive quotes...
From £2,520
M &M GENERAL BUILDING is an established extension buildering business in Guildford. We come highly recommended and provide competitive quotes for y...
From £2,624
Trusted and professional extension builder in Guildford. Experienced in all extension buildering work and keeping within budget and on quote. Chint...
From £2,520
Need an Extension Builder in Guildford? P J HARDIMAN BUILDING CONTRACT has been helping local clients (20 mile radius) with their extension builder...
From £1,912
K P WARNE BUILDERS is an established extension buildering business in Guildford. We come highly recommended and provide competitive quotes for your...
From £4,808
With well over a decade of marketing and web design experience working for a variety of tradespeople from cleaners through to builders, Websites 4 ...

How much RSJs cost for supply and installation varies depending on the size, type and load-bearing properties, but in Guildford it ranges from £1,912 (K P WARNE BUILDERS based in GU7) to £4,808 (Websites 4 Trades based in GU7).
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 Guildford by posting a job with HaMuch and we will send it to extension builders in Guildford.
"RSJ installation" - GU3, job posted 01/01/70
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Install An RSJ near Guildford | £53 | £298 |
| Install An RSJ near Woking | £43 | £277 |
| Install An RSJ near Ash Vale | £41 | £277 |
| Install An RSJ near Waverley | £68 | £313 |
| Install An RSJ near Aldershot | £41 | £275 |
| Install An RSJ near Great Bookham | £42 | £281 |
| Install An RSJ near Farnborough | £41 | £273 |
| Install An RSJ near New Haw | £43 | £273 |
| Install An RSJ near Farnham | £41 | £276 |
| Install An RSJ near Camberley | £41 | £283 |
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 - £18,082

Two storey extension - £88,874

Build a timber frame extension - £26,582

Build a swimming pool - £81,582

Single storey extension - £66,648

Side return extension - £48,052

Install an RSJ - £2,782

Outbuilding - £10,582

Build a Mansard loft conversion - £52,582

Loft conversion - £39,210

Build a kitchen extension - £42,582

Hip to gable loft conversion - £42,582

Granny annexe - £87,582

Garden office - £10,582

Convert a Garage - £16,582

Garage - £19,082

Build a flat roof extension - £22,582

Build a dormer loft conversion - £42,582

Concrete foundations - £6,832

Convert a bungalow loft - £29,582

Convert a basement - £44,052