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Ferguson Building Services Limited is an established and experienced local extension builder in Mid Sussex. Please contact us for a free, no obliga...
David Oreilly
We are a family run business we 40 years experience delivering multiple projects from new developments . Extension. Loft conversion. Including foun...
Crawley Construction Ltd
Contact us: 07454160840 Email: enquiries@ We are a family run business since 15 year’s+. We are build on tru...
DC Construction is a trusted extension builder serving customers in Mid Sussex and the surrounding area. Contact us to today to get a competitive q...
J S Nisbet Loft Conversions are here to help customers who need an Extension Builder in Mid Sussex. We offer a competitive rate to complete all you...
Reuben Sargent
Rjscarpentryconstruction is a well established company with over 30 years of experience in the carpentry and construction industries
From £9,600
J Taylor
Taylor Building & Maintenance Services is an established extension buildering business in Mid Sussex. We come highly recommended and provide compet...
From £9,848
Need to find an Extension Builder near you for all your extension buildering work?
WATTSON BROS BUILDING LTD provides a local, trusted exte...
From £9,784
In an unstable market house extensions are often the most viable option, helping you to get the most out of the space you have without the addition...
From £10,064
JG Brickwork Services Limited is an established extension buildering business in Mid Sussex. We come highly recommended and provide competitive quo...

Garden offices range from the cheapest of £9,600 (Taylor Building & Maintenance Services based in RH18) to the dearest of £10,600 (RJ's Carpentry Construction based in RH15), but these are only estimates.
The best way to compare costs is to get actual quotes.
Get rates and quotes to build a garden office in Mid Sussex by posting a job with HaMuch. We'll send it to extension builders in Mid Sussex.
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Garden Office near Mid Sussex | £35 | £261 |
| Garden Office near Haywards Heath | £35 | £256 |
| Garden Office near Burgess Hill | £36 | £256 |
| Garden Office near Crawley | £38 | £255 |
| Garden Office near East Grinstead | £37 | £259 |
| Garden Office near Horsham | £38 | £265 |
| Garden Office near Horley | £38 | £258 |
| Garden Office near Crowborough | £36 | £258 |
| Garden Office near Brighton and Hove | £35 | £252 |
| Garden Office near Redhill | £41 | £269 |
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 - £17,476

Two storey extension - £87,964

Build a timber frame extension - £25,976

Build a swimming pool - £80,976

Single storey extension - £54,520

Side return extension - £41,230

Install an RSJ - £2,176

Outbuilding - £9,976

Build a Mansard loft conversion - £51,976

Loft conversion - £33,525

Build a kitchen extension - £41,976

Hip to gable loft conversion - £41,976

Granny annexe - £86,976

Garden office - £9,976

Convert a Garage - £15,976

Garage - £18,476

Build a flat roof extension - £21,976

Build a dormer loft conversion - £41,976

Concrete foundations - £6,226

Convert a bungalow loft - £28,976

Convert a basement - £37,230