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Relax... you have found a reliable extension builder in Horton. GDW Construction is a friendly and reliable company based in Horton who consider no...
Need to find an Extension Builder near you for all your extension buildering work?
OAK HOUSE BESPOKE BUILDERS provides a local, trusted ext...
Experienced extension builder ready to quote for your work. J&J Building Solutions is the best extension builder in Horton. No obligation free quot...
From £43,200
Sebastian Banga
Member since August 2025
Banga decoration. Is Base in south London for number of year Banga decoration is a small company. Wich provide an excellent job to the custom...
Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of extension builde...
Gani Bush
Gb construction are here to help customers who need an Extension Builder in Horton. We offer a competitive rate to complete all your extension bui...
Jatinder Kahlon
Hi, I’m Jatinder. I’m a qualified electrician and gas safe registered professional with 10 years of experience in the trade. We specialise in l...
Building Vision London Ltd is a trusted extension builder serving customers in Horton and the surrounding area. Contact us to today to get a compet...
Trusted and professional extension builder in Horton. Experienced in all extension buildering work and keeping within budget and on quote. TFC Cons...

In Horton, prices for dormer loft conversions range from £42,048 (J&J Building Solutions based in SW16) to £43,200 (Banga Decoration based in CR7), 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 Horton. 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 Ewell | £44 | £275 |
| Build A Dormer Loft Conversion near Epsom | £44 | £275 |
| Build A Dormer Loft Conversion near Sutton | £43 | £274 |
| Build A Dormer Loft Conversion near Esher | £43 | £274 |
| Build A Dormer Loft Conversion near Kingston Upon Thames | £43 | £271 |
| Build A Dormer Loft Conversion near Tadworth | £41 | £271 |
| Build A Dormer Loft Conversion near Reigate & Banstead | £41 | £271 |
| Build A Dormer Loft Conversion near West Molesey | £43 | £274 |
| Build A Dormer Loft Conversion near Richmond Upon Thames | £43 | £274 |
| Build A Dormer Loft Conversion near Wimbledon | £43 | £273 |
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 - £17,941

Two storey extension - £88,661

Build a timber frame extension - £26,441

Build a swimming pool - £81,441

Single storey extension - £63,816

Side return extension - £46,459

Install an RSJ - £2,641

Outbuilding - £10,441

Build a Mansard loft conversion - £52,441

Loft conversion - £37,883

Build a kitchen extension - £42,441

Hip to gable loft conversion - £42,441

Granny annexe - £87,441

Garden office - £10,441

Convert a Garage - £16,441

Garage - £18,941

Build a flat roof extension - £22,441

Build a dormer loft conversion - £42,441

Concrete foundations - £6,691

Convert a bungalow loft - £29,441

Convert a basement - £42,459