From £10,032
Col-In the Builder is a trusted extension builder serving customers in KA25 and the surrounding area. Contact us to today to get a competitive quot...
From £10,080
Adelphi Design & Construction Ltd is an established and experienced local extension builder in KA25. Please contact us for a free, no obligation qu...
From £10,296
Need an Extension Builder in KA25? Gman-Joinery & Builders has been helping local clients (20 mile radius) with their extension buildering jobs for...
From £9,928
J & J Property Services is an established extension buildering business in KA25. We come highly recommended and provide competitive quotes for your...
From £9,744
ABG Resin Bond & Landscaping Ltd have been transforming driveways for many years, laying tarmac and installing block-paving, fence...
From £9,808
Boyle Construction Glasgow Ltd is a trusted extension builder serving customers in KA25 and the surrounding area. Contact us to today to get a comp...
From £9,376
Experienced extension builder ready to quote for your work. Glencroft Builders Ltd is the best extension builder in KA25. No obligation free quotes...
From £9,968
RADICAL CONSTRUCTION LIMITED are here to help customers who need an Extension Builder in KA25. We offer a competitive rate to complete all your ext...
From £10,312
Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of extension builde...
From £9,992
Relax... you have found a reliable extension builder in KA25. Adrian K Wilson Roofing Specialist is a friendly and reliable company based in KA25 w...

Outbuilding costs in KA25 range from the cheapest of £9,376 (Glencroft Builders Ltd based in G81) to the dearest of £10,312 (Unibuild Property Services based in KA20), 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 KA25 by posting a job with HaMuch and we will send it to extension builders.
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Outbuilding near Kilwinning | £33 | £250 |
| Outbuilding near North Ayrshire | £33 | £250 |
| Outbuilding near Johnstone | £52 | £381 |
| Outbuilding near Renfrewshire | £54 | £398 |
| Outbuilding near Irvine | £35 | £253 |
| Outbuilding near Barrhead | £35 | £255 |
| Outbuilding near Greenock | £30 | £243 |
| Outbuilding near Paisley | £34 | £259 |
| Outbuilding near Port Glasgow | £32 | £250 |
| Outbuilding near Kilmarnock | £36 | £271 |
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 - £17,454

Two storey extension - £87,930

Build a timber frame extension - £25,954

Build a swimming pool - £80,954

Single storey extension - £54,072

Side return extension - £40,978

Install an RSJ - £2,154

Outbuilding - £9,954

Build a Mansard loft conversion - £51,954

Loft conversion - £33,315

Build a kitchen extension - £41,954

Hip to gable loft conversion - £41,954

Granny annexe - £86,954

Garden office - £9,954

Convert a Garage - £15,954

Garage - £18,454

Build a flat roof extension - £21,954

Build a dormer loft conversion - £41,954

Concrete foundations - £6,204

Convert a bungalow loft - £28,954

Convert a basement - £36,978