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Chris Czerwinski
About us: Buildmac Ltd is a well-established, trustworthy, reliable and professional business based in High Wycombe, covering all surrounding areas...
Need to find an Extension Builder near you for all your extension buildering work?
Loudwater Building Services provides a local, trusted ex...
Mitchell & Co Building & Renovations Ltd is an established extension buildering business in Winchmore Hill. We come highly recommended and provide ...
Relax... you have found a reliable extension builder in Winchmore Hill. Building High Wycombe is a friendly and reliable company based in Winchmore...
HAMPTON CONSTRUCTION LTD are here to help customers who need an Extension Builder in Winchmore Hill. We offer a competitive rate to complete all yo...
Need to find an Extension Builder near you for all your extension buildering work?
6:59 Ltd provides a local, trusted extension buildering ...
Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of extension builde...
Be Illuminated are here to help customers who need an Extension Builder in Winchmore Hill. We offer a competitive rate to complete all your extensi...
Steve Knight Construction is a High Wycombe based Building Company with 38 years experience in all aspects of the Construction Industry. We are abl...
Need to find an Extension Builder near you for all your extension buildering work?
JAYEM BUILDING SERVICES LTD provides a local, trusted ex...

In Winchmore Hill, prices for dormer loft conversions range from £42,040 (Mitchell & Co Building & Renovations Ltd based in HP13) to £42,392 (Jesson ladscaping and construction based in hp15), but how much your conversion costs will vary depending on the size of your property, how easy access to your roof is and what you want to use the space for.
The best way to get an accurate price is to compare quotes from extension builders in Winchmore Hill. Post your job on HaMuch now and we'll put you in touch with available extension builders.
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Build A Dormer Loft Conversion near Chesham | £42 | £277 |
| Build A Dormer Loft Conversion near Hazlemere | £40 | £272 |
| Build A Dormer Loft Conversion near Gerrards Cross | £43 | £283 |
| Build A Dormer Loft Conversion near Rickmansworth | £43 | £282 |
| Build A Dormer Loft Conversion near Berkhamsted | £41 | £273 |
| Build A Dormer Loft Conversion near Dacorum | £42 | £275 |
| Build A Dormer Loft Conversion near High Wycombe | £39 | £272 |
| Build A Dormer Loft Conversion near Hemel Hempstead | £43 | £276 |
| Build A Dormer Loft Conversion near Wycombe | £40 | £271 |
| Build A Dormer Loft Conversion near Watford | £43 | £280 |
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 - £17,750

Two storey extension - £88,374

Build a timber frame extension - £26,250

Build a swimming pool - £81,250

Single storey extension - £59,992

Side return extension - £44,308

Install an RSJ - £2,450

Outbuilding - £10,250

Build a Mansard loft conversion - £52,250

Loft conversion - £36,090

Build a kitchen extension - £42,250

Hip to gable loft conversion - £42,250

Granny annexe - £87,250

Garden office - £10,250

Convert a Garage - £16,250

Garage - £18,750

Build a flat roof extension - £22,250

Build a dormer loft conversion - £42,250

Concrete foundations - £6,500

Convert a bungalow loft - £29,250

Convert a basement - £40,308