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Unibuild Property Services
Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of extension builde...
"Staircase up to the loft 2 velux windows fitted plasterboard and electric sockets installed and lights" - KA21, job posted 09/09/25
Col-In the Builder
Col-In the Builder is a trusted extension builder serving customers in Kilwinning and the surrounding area. Contact us to today to get a competitiv...
"Single storey extension" - NORTH AYRSHIRE, job posted 08/09/25
Adrian K Wilson Roofing Specialist
Relax... you have found a reliable extension builder in Kilwinning. Adrian K Wilson Roofing Specialist is a friendly and reliable company based in ...
"Loft conversion" - NORTH AYRSHIRE, job posted 23/05/25
BMB BUILDERS
Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of extension builde...
"Garage conversion required.. detatched house. Walls insulated and lined plasterboard.. additional lighting, attach sink to an existing worktop plumb in..fit laminate flooring..remove exisiting door and replace with french doors with hopper windows on the side windows.." - NORTH AYRSHIRE, job posted 16/06/24
£31/hr
£240/day
Andrew Wright Windows Ltd -Independent Network Installer
Andrew Wright Windows Ltd -Independent Network Installer is a trusted extension builder serving customers in Kilwinning and the surrounding area. C...
"Loft conversion" - NORTH AYRSHIRE, job posted 21/01/24
Compare Kilwinning extension builders rates
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Extension Builders near Kilwinning | £33 | £250 |
| Extension Builders near North Ayrshire | £33 | £250 |
| Extension Builders near Irvine | £35 | £253 |
| Extension Builders near Troon | £32 | £241 |
| Extension Builders near Kilmarnock | £36 | £271 |
| Extension Builders near Prestwick | £24 | £180 |
| Extension Builders near South Ayrshire | £25 | £190 |
| Extension Builders near Johnstone | £35 | £276 |
| Extension Builders near Ayr | £25 | £190 |
| Extension Builders near Renfrewshire | £35 | £278 |
Job estimates from extension builders near you
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.

Build a timber frame extension - £26,112

Garden office - £10,112

Granny annexe - £87,112

Build a flat roof extension - £22,112

Convert a Garage - £16,112

Hip to gable loft conversion - £42,112

Convert a bungalow loft - £29,112

Build a dormer loft conversion - £42,112

Build a swimming pool - £81,112

Build a Mansard loft conversion - £52,112

Concrete foundations - £6,362

Underpin a building - £17,612

Two storey extension - £88,168

Convert a basement - £38,760

Side return extension - £42,760

Loft conversion - £34,800

Garage - £18,612

Single storey extension - £57,240

Outbuilding - £10,112

Install an RSJ - £2,312

Build a kitchen extension - £42,112
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