Please call to discuss your building needs.
We are a family run business with over 30 years experience in the roofing industry. We pride ourselves on our high standards of workmanship and cus...
Mayfair developers have been in the construction industry for over a decade. Our passion is to transform old spaces into new usable homes for our c...
Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of extension builde...
M K Builders Medway Ltd is an established extension buildering business in ME4. We come highly recommended and provide competitive quotes for your ...
AF Renovations LTD is an established and experienced local extension builder in ME4. Please contact us for a free, no obligation quote and competit...
STABILIS BUILDING SERVICES LTD is a trusted extension builder serving customers in ME4 and the surrounding area. Contact us to today to get a compe...
Freeman V & Co are here to help customers who need an Extension Builder in ME4. We offer a competitive rate to complete all your extension builderi...
Ikonic Developments Limited are here to help customers who need an Extension Builder in ME4. We offer a competitive rate to complete all your exten...
Tony Bastable
Relax... you have found a reliable extension builder in ME4. Roof Go Roofing Ltd is a friendly and reliable company based in ME4 who consider no jo...

How much RSJs cost for supply and installation varies depending on the size, type and load-bearing properties, but in ME4 it ranges from £2,160 (M K Builders Medway Ltd based in ME4) to £2,688 (Roof Go Roofing Ltd based in ME2).
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 ME4 by posting a job with HaMuch and we will send it to extension builders in ME4.
"RSJ installation, 203/203/46 beam length 5150mm, also digging concrete pad 900x900x 600 deep for site support post. For more information please get in touch." - RAINHAM, job posted 01/01/70
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Install An RSJ near Chatham | £39 | £254 |
| Install An RSJ near Gillingham | £39 | £253 |
| Install An RSJ near Rochester | £39 | £254 |
| Install An RSJ near Larkfield | £41 | £253 |
| Install An RSJ near Gravesend | £40 | £260 |
| Install An RSJ near Maidstone | £40 | £255 |
| Install An RSJ near Northfleet | £41 | £261 |
| Install An RSJ near Sittingbourne | £35 | £246 |
| Install An RSJ near Canvey Island | £39 | £256 |
| Install An RSJ near Stanford-le-Hope | £40 | £254 |
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 - £17,734

Two storey extension - £88,350

Build a timber frame extension - £26,234

Build a swimming pool - £81,234

Single storey extension - £59,672

Side return extension - £44,128

Install an RSJ - £2,434

Outbuilding - £10,234

Build a Mansard loft conversion - £52,234

Loft conversion - £35,940

Build a kitchen extension - £42,234

Hip to gable loft conversion - £42,234

Granny annexe - £87,234

Garden office - £10,234

Convert a Garage - £16,234

Garage - £18,734

Build a flat roof extension - £22,234

Build a dormer loft conversion - £42,234

Concrete foundations - £6,484

Convert a bungalow loft - £29,234

Convert a basement - £40,128