Need an Extension Builder in Horsham? MPS Home Improvements Ltd has been helping local clients (20 mile radius) with their extension buildering job...
David Oreilly
We are a family run business we 40 years experience delivering multiple projects from new developments . Extension. Loft conversion. Including foun...
Andrew Skinner
Horsham, RH12
AWS Home Improvements is an established extension buildering business in Horsham. We come highly recommended and provide competitive quotes for you...
DC Construction is a trusted extension builder serving customers in Horsham and the surrounding area. Contact us to today to get a competitive quot...
Horsham, RH12
Trusted and professional extension builder in Horsham. Experienced in all extension buildering work and keeping within budget and on quote. Design-...
Horsham, RH13
JBF Building & Roofing Maintenance Ltd is an established and experienced local extension builder in Horsham. Please contact us for a free, no oblig...
Relax... you have found a reliable extension builder in Horsham. Aurabuild is a friendly and reliable company based in Horsham who consider no job ...
Our family-run building services company ME Building Solutions has 35 years’ experience in the trade. We have been helping customers in Horsham a...
G BEARS CONSTRUCTION LTD are here to help customers who need an Extension Builder in Horsham. We offer a competitive rate to complete all your exte...
Need an Extension Builder in Horsham? Michael & Co has been helping local clients (20 mile radius) with their extension buildering jobs for many ye...

Outbuilding costs in Horsham range from the cheapest of £9,872 (MPS Home Improvements Ltd based in RH14) to the dearest of £10,272 (JBF Building & Roofing Maintenance Ltd based in RH13), 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 Horsham by posting a job with HaMuch and we will send it to extension builders.
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Outbuilding near Horsham | £38 | £265 |
| Outbuilding near Crawley | £38 | £255 |
| Outbuilding near Mid Sussex | £35 | £261 |
| Outbuilding near Horley | £38 | £258 |
| Outbuilding near Haywards Heath | £35 | £256 |
| Outbuilding near Burgess Hill | £36 | £240 |
| Outbuilding near Reigate | £40 | £270 |
| Outbuilding near Redhill | £41 | £269 |
| Outbuilding near East Grinstead | £37 | £259 |
| Outbuilding near Great Bookham | £42 | £281 |
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 - £17,594

Two storey extension - £88,140

Build a timber frame extension - £26,094

Build a swimming pool - £81,094

Single storey extension - £56,872

Side return extension - £42,553

Install an RSJ - £2,294

Outbuilding - £10,094

Build a Mansard loft conversion - £52,094

Loft conversion - £34,628

Build a kitchen extension - £42,094

Hip to gable loft conversion - £42,094

Granny annexe - £87,094

Garden office - £10,094

Convert a Garage - £16,094

Garage - £18,594

Build a flat roof extension - £22,094

Build a dormer loft conversion - £42,094

Concrete foundations - £6,344

Convert a bungalow loft - £29,094

Convert a basement - £38,553