From £2,256
Relax... you have found a reliable extension builder in Felixstowe. AP Laflin Builders Ltd is a friendly and reliable company based in Felixstowe w...
From £1,872
Felixstowe, IP11
Experienced extension builder ready to quote for your work. A M F BUILDING CONTRACTOR is the best extension builder in Felixstowe. No obligation fr...
From £2,344
Edwin Lewis Dickinson is a well established company providing all of its customers with the very highest quality of workmanship using only the best...
From £2,128
Our company is built on trust and communication with our clients.We are of firm belief that our customers needs are of the utmost importance.
From £2,160
BOOTH DESIGN AND BUILD LTD are here to help customers who need an Extension Builder in Felixstowe. We offer a competitive rate to complete all your...
From £2,000
Trusted and professional extension builder in Felixstowe. Experienced in all extension buildering work and keeping within budget and on quote. Jame...
From £1,496
Caley & Son are here to help customers who need an Extension Builder in Felixstowe. We offer a competitive rate to complete all your extension buil...
From £1,656
Dmc paving&landscaping we. Family run company with many years experience with over 100 reviews on other websites
From £2,312
San Diego Construction Custom Homes has experience building homes in the UK, Canada and the United States since 1999. It was founded on quality and...
From £2,224
NEIL WYLIE BUILDERS LIMITED is a trusted extension builder serving customers in Felixstowe and the surrounding area. Contact us to today to get a c...

How much RSJs cost for supply and installation varies depending on the size, type and load-bearing properties, but in Felixstowe it ranges from £1,496 (Caley & Son based in IP3) to £2,344 (Edwin Lewis Dickinson Ltd based in CO12).
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 Felixstowe by posting a job with HaMuch and we will send it to extension builders in Felixstowe.
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Install An RSJ near Felixstowe | £31 | £231 |
| Install An RSJ near Harwich | £34 | £248 |
| Install An RSJ near Ipswich | £33 | £235 |
| Install An RSJ near Tendring | £31 | £226 |
| Install An RSJ near Suffolk Coastal | £28 | £215 |
| Install An RSJ near Clacton-on-Sea | £31 | £232 |
| Install An RSJ near Colchester | £33 | £230 |
| Install An RSJ near Stowmarket | £30 | £221 |
| Install An RSJ near Sudbury | £34 | £229 |
| Install An RSJ near Maldon | £36 | £244 |
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 - £17,345

Two storey extension - £87,767

Build a timber frame extension - £25,845

Build a swimming pool - £80,845

Single storey extension - £51,896

Side return extension - £39,754

Install an RSJ - £2,045

Outbuilding - £9,845

Build a Mansard loft conversion - £51,845

Loft conversion - £32,295

Build a kitchen extension - £41,845

Hip to gable loft conversion - £41,845

Granny annexe - £86,845

Garden office - £9,845

Convert a Garage - £15,845

Garage - £18,345

Build a flat roof extension - £21,845

Build a dormer loft conversion - £41,845

Concrete foundations - £6,095

Convert a bungalow loft - £28,845

Convert a basement - £35,754