From £2,264
Brooks & Co Developments, Based in Tunbridge Wells, Kent. Specialising in, Home refurbishments
From £2,400
Need an Extension Builder in TN1? Design Atelier Ltd has been helping local clients (20 mile radius) with their extension buildering jobs for many ...
From £2,568
Whether you’re planning a new build, restoration, renovation, refurbishment or if you’re just after a concept design & costing to decide if you...
From £2,152
Relax... you have found a reliable extension builder in TN1. Decor-Solutions is a friendly and reliable company based in TN1 who consider no job as...
From £2,408
Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of extension builde...
From £2,080
Experienced extension builder ready to quote for your work. All In One Home Services Ltd is the best extension builder in TN1. No obligation free q...
From £2,160
First of all, we began as a small family painter and decorator business covering the Tunbridge Wells area and, following the positive recommendatio...
From £1,520
MAGNOLIA HOME is family run,Tunbridge Wells based building company,.With years expirence,you as the customer can be assured that you are in safe ha...
From £2,360
P & A CONSTRUCTION LIMITED is an established extension buildering business in TN1. We come highly recommended and provide competitive quotes for yo...

How much RSJs cost for supply and installation varies depending on the size, type and load-bearing properties, but in TN1 it ranges from £1,520 (Magnoli Home based in TN2) to £2,568 (Design Atelier Ltd based in TN1).
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 TN1 by posting a job with HaMuch and we will send it to extension builders in TN1.
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Install An RSJ near Tunbridge Wells | £37 | £258 |
| Install An RSJ near Tonbridge | £38 | £254 |
| Install An RSJ near Crowborough | £36 | £258 |
| Install An RSJ near Sevenoaks | £38 | £234 |
| Install An RSJ near Wealden | £35 | £256 |
| Install An RSJ near East Grinstead | £37 | £259 |
| Install An RSJ near Larkfield | £41 | £253 |
| Install An RSJ near Maidstone | £40 | £255 |
| Install An RSJ near Mid Sussex | £35 | £261 |
| Install An RSJ near Hailsham | £31 | £243 |
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 - £17,527

Two storey extension - £88,041

Build a timber frame extension - £26,027

Build a swimming pool - £81,027

Single storey extension - £55,544

Side return extension - £41,806

Install an RSJ - £2,227

Outbuilding - £10,027

Build a Mansard loft conversion - £52,027

Loft conversion - £34,005

Build a kitchen extension - £42,027

Hip to gable loft conversion - £42,027

Granny annexe - £87,027

Garden office - £10,027

Convert a Garage - £16,027

Garage - £18,527

Build a flat roof extension - £22,027

Build a dormer loft conversion - £42,027

Concrete foundations - £6,277

Convert a bungalow loft - £29,027

Convert a basement - £37,806