Delamere Building Services is an established extension buildering business in ME6. We come highly recommended and provide competitive quotes for yo...
From £2,544
Sunley Projects is a trusted extension builder serving customers in ME6 and the surrounding area. Contact us to today to get a competitive quote fo...
From £2,288
We are a family run, specialist loft conversions company who design and build lofts and extensions in the South East and we pride ourselves on prov...
From £2,104
Frisby Building have over 60 years of experience working in the building industry around Kent, specialising in kitchen and bathroom installations a...
From £2,016
Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of extension builde...
From £1,976
Relax... you have found a reliable extension builder in ME6. Carey Property Development Ltd is a friendly and reliable company based in ME6 who con...
From £2,384
Roka Interiors is an established and experienced local extension builder in ME6. Please contact us for a free, no obligation quote and competitive ...
From £2,104
Need to find an Extension Builder near you for all your extension buildering work?
Holbrook Construction provides a local, trusted extensio...
From £2,288
Kitchen and Project Installations are here to help customers who need an Extension Builder in ME6. We offer a competitive rate to complete all your...

How much RSJs cost for supply and installation varies depending on the size, type and load-bearing properties, but in ME6 it ranges from £1,976 (Carey Property Development Ltd based in ME1) to £2,544 (Sunley Projects 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 ME6 by posting a job with HaMuch and we will send it to extension builders in ME6.
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Install An RSJ near Larkfield | £41 | £253 |
| Install An RSJ near Rochester | £39 | £254 |
| Install An RSJ near Maidstone | £40 | £255 |
| Install An RSJ near Chatham | £39 | £254 |
| Install An RSJ near Gillingham | £39 | £253 |
| Install An RSJ near Gravesend | £40 | £260 |
| 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 Tonbridge | £38 | £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 - £17,508

Two storey extension - £88,012

Build a timber frame extension - £26,008

Build a swimming pool - £81,008

Single storey extension - £55,160

Side return extension - £41,590

Install an RSJ - £2,208

Outbuilding - £10,008

Build a Mansard loft conversion - £52,008

Loft conversion - £33,825

Build a kitchen extension - £42,008

Hip to gable loft conversion - £42,008

Granny annexe - £87,008

Garden office - £10,008

Convert a Garage - £16,008

Garage - £18,508

Build a flat roof extension - £22,008

Build a dormer loft conversion - £42,008

Concrete foundations - £6,258

Convert a bungalow loft - £29,008

Convert a basement - £37,590