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Available extension builders in Iver reply
Select your affordable Iver extension builder
Lee Townsend
Need to find an Extension Builder near you for all your extension buildering work?
Lp Townsend Brickwork provides a local, trusted extensio...
Need an Extension Builder in Iver? S.K Singh has been helping local clients (10 mile radius) with their extension buildering jobs for many years. G...
Vital Builders are here to help customers who need an Extension Builder in Iver. We offer a competitive rate to complete all your extension builder...
GMB BUILDING SERVICES is an established and experienced local extension builder in Iver. Please contact us for a free, no obligation quote and comp...
Nirvair Builders is an established extension buildering business in Iver. We come highly recommended and provide competitive quotes for your work.<...
Trusted and professional extension builder in Iver. Experienced in all extension buildering work and keeping within budget and on quote. DC Build &...
Bill Matharu
Matharu Buildings is an established extension buildering business in Iver. We come highly recommended and provide competitive quotes for your work....
Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of extension builde...
Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of extension builde...
Trusted and professional extension builder in Iver. Experienced in all extension buildering work and keeping within budget and on quote. SME Builde...

Mansard loft conversions range from the cheapest installation of £51,888 (Nirvair Builders based in UB3) to the dearest of around £52,432 (GMB BUILDING SERVICES based in UB8).
While these estimates give you a good idea how much you'll pay for a mansard loft conversion, the only way to get an accurate price is to get real quotes from real builders.
Get quotes to install a mansard loft conversion in Iver by posting a job with HaMuch and we'll send it to extension builders in Iver.
"Mansard loft conversion" - HAYES, job posted 10/01/25
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Build A Mansard Loft Conversion near Hillingdon | £43 | £276 |
| Build A Mansard Loft Conversion near Slough | £42 | £272 |
| Build A Mansard Loft Conversion near Windsor & Maidenhead | £42 | £272 |
| Build A Mansard Loft Conversion near Gerrards Cross | £43 | £283 |
| Build A Mansard Loft Conversion near Windsor | £41 | £271 |
| Build A Mansard Loft Conversion near Staines-upon-Thames | £42 | £269 |
| Build A Mansard Loft Conversion near Egham | £42 | £266 |
| Build A Mansard Loft Conversion near Hounslow | £43 | £272 |
| Build A Mansard Loft Conversion near Rickmansworth | £43 | £282 |
| Build A Mansard Loft Conversion near Harrow | £43 | £270 |
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 - £17,683

Two storey extension - £88,275

Build a timber frame extension - £26,183

Build a swimming pool - £81,183

Single storey extension - £58,664

Side return extension - £43,561

Install an RSJ - £2,383

Outbuilding - £10,183

Build a Mansard loft conversion - £52,183

Loft conversion - £35,468

Build a kitchen extension - £42,183

Hip to gable loft conversion - £42,183

Granny annexe - £87,183

Garden office - £10,183

Convert a Garage - £16,183

Garage - £18,683

Build a flat roof extension - £22,183

Build a dormer loft conversion - £42,183

Concrete foundations - £6,433

Convert a bungalow loft - £29,183

Convert a basement - £39,561