We send your job to ALL Swanley extension builders
Available extension builders in Swanley reply
Select your affordable Swanley extension builder
Experienced extension builder ready to quote for your work. NA Brickwork is the best extension builder in Swanley. No obligation free quotes and ma...
Need to find an Extension Builder near you for all your extension buildering work?
Master Builders provides a local, trusted extension buil...
Relax... you have found a reliable extension builder in Swanley. UNIVERSAL CONSTRUCTION is a friendly and reliable company based in Swanley who con...
Curtis Archer
Relax... you have found a reliable extension builder in Swanley. POVERSET BUILDING COMPANY is a friendly and reliable company based in Swanley who ...
Julian Cafun
Need an Extension Builder in Swanley? Saintflexs has been helping local clients (10 mile radius) with their extension buildering jobs for many yea...
Max Dixon
We are a construction company specialising in all aspects of building works, loft construction Extension complete home renovation, structural ...
R Tredget & Son are here to help customers who need an Extension Builder in Swanley. We offer a competitive rate to complete all your extension bui...
Tommy House
HOUSE BUILDING SERVICES LIMITED is a trusted extension builder serving customers in Swanley and the surrounding area. Contact us to today to get a ...
We provide our clients with excellent service and quality. Whether you are looking to extend or upgrade, our professional team has the skills and e...
Relax... you have found a reliable extension builder in Swanley. JPRMS Ltd is a friendly and reliable company based in Swanley who consider no job ...

How much RSJs cost for supply and installation varies depending on the size, type and load-bearing properties, but in Swanley it ranges from £2,168 (UNIVERSAL CONSTRUCTION based in BR8) to £2,816 (HOUSE BUILDING SERVICES LIMITED based in DA16).
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 Swanley by posting a job with HaMuch and we will send it to extension builders in Swanley.
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Install An RSJ near Bexley | £42 | £265 |
| Install An RSJ near Dartford | £41 | £265 |
| Install An RSJ near Bromley | £43 | £268 |
| Install An RSJ near Northfleet | £41 | £261 |
| Install An RSJ near Sevenoaks | £38 | £234 |
| Install An RSJ near Grays | £41 | £261 |
| Install An RSJ near South Ockendon | £42 | £264 |
| Install An RSJ near Lewisham | £43 | £268 |
| Install An RSJ near Gravesend | £40 | £260 |
| Install An RSJ near Greenwich | £44 | £268 |
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 - £17,710

Two storey extension - £88,316

Build a timber frame extension - £26,210

Build a swimming pool - £81,210

Single storey extension - £59,208

Side return extension - £43,867

Install an RSJ - £2,410

Outbuilding - £10,210

Build a Mansard loft conversion - £52,210

Loft conversion - £35,723

Build a kitchen extension - £42,210

Hip to gable loft conversion - £42,210

Granny annexe - £87,210

Garden office - £10,210

Convert a Garage - £16,210

Garage - £18,710

Build a flat roof extension - £22,210

Build a dormer loft conversion - £42,210

Concrete foundations - £6,460

Convert a bungalow loft - £29,210

Convert a basement - £39,867