Top Form Construction are here to help customers who need an Extension Builder in SS4. We offer a competitive rate to complete all your extension b...
Please call to discuss your building needs.
Frederick Head
Over 35 years experience
We are Gas Safe registered
We are Verified
We pride ourselves on great custom...
Experienced extension builder ready to quote for your work. CIA Construction Limited is the best extension builder in SS4. No obligation free quote...
Darren Spencer
Need an Extension Builder in SS4? Ellis & James Builders Limited has been helping local clients (20 mile radius) with their extension buildering jo...
M&J Brickwork Ltd are a Chelmsford based Bricklaying & General Building company that operate throughout the Essex and South London...
Witton & Pearce Builders in Essex is a trusted extension builder serving customers in SS4 and the surrounding area. Contact us to today to get a co...
Billy Baverstock
Experienced extension builder ready to quote for your work. Capital Roofing Ltd is the best extension builder in SS4. No obligation free quotes and...
P OUGHTON BUILDING is an established and experienced local extension builder in SS4. Please contact us for a free, no obligation quote and competit...
Property Maintenance are here to help customers who need an Extension Builder in SS4. We offer a competitive rate to complete all your extension bu...

Outbuilding costs in SS4 range from the cheapest of £9,456 (Capital Roofing Ltd based in SS13) to the dearest of £10,424 (Des Durant General Building based in ME5), but these are just estimates.
Comparing extension builders estimates for building an outbuilding 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 build an outbuilding in SS4 by posting a job with HaMuch and we will send it to extension builders.
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Outbuilding near Southend-on-Sea | £37 | £247 |
| Outbuilding near Rayleigh | £39 | £252 |
| Outbuilding near Thundersley | £38 | £251 |
| Outbuilding near Canvey Island | £39 | £256 |
| Outbuilding near Wickford | £39 | £255 |
| Outbuilding near Basildon | £39 | £251 |
| Outbuilding near Maldon | £36 | £244 |
| Outbuilding near Billericay | £38 | £248 |
| Outbuilding near Stanford-le-Hope | £40 | £254 |
| Outbuilding near Chelmsford | £38 | £258 |
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 - £17,592

Two storey extension - £88,138

Build a timber frame extension - £26,092

Build a swimming pool - £81,092

Single storey extension - £56,840

Side return extension - £42,535

Install an RSJ - £2,292

Outbuilding - £10,092

Build a Mansard loft conversion - £52,092

Loft conversion - £34,613

Build a kitchen extension - £42,092

Hip to gable loft conversion - £42,092

Granny annexe - £87,092

Garden office - £10,092

Convert a Garage - £16,092

Garage - £18,592

Build a flat roof extension - £22,092

Build a dormer loft conversion - £42,092

Concrete foundations - £6,342

Convert a bungalow loft - £29,092

Convert a basement - £38,535