We send your job to ALL Surrey extension builders
Available extension builders in Surrey reply
Select your affordable Surrey extension builder
Relax... you have found a reliable extension builder in Surrey. GDW Construction is a friendly and reliable company based in Surrey who consider no...
BENCHMARK BUILDING & is a trusted extension builder serving customers in Surrey and the surrounding area. Contact us to today to get a competitive ...
Gani Bush
Gb construction are here to help customers who need an Extension Builder in Surrey. We offer a competitive rate to complete all your extension bui...
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...
Relax... you have found a reliable extension builder in Surrey. D & R Roofing & Loft Conversions, Building & Design is a friendly and reliable comp...
Hilton building contractors ltd is a trusted extension builder serving customers in Surrey and the surrounding area. Contact us to today to get a c...
Relax... you have found a reliable extension builder in Surrey. Amazing Space Design and Build Ltd. is a friendly and reliable company based in Sur...
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...
Relax... you have found a reliable extension builder in Surrey. L M G Building Services (London) Ltd is a friendly and reliable company based in Su...

In Surrey, prices for dormer loft conversions range from £41,936 (Masters Property Services based in SM5) 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 Surrey. 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 Caterham | £43 | £271 |
| Build A Dormer Loft Conversion near Redhill | £41 | £269 |
| Build A Dormer Loft Conversion near Reigate & Banstead | £41 | £271 |
| Build A Dormer Loft Conversion near Croydon | £42 | £267 |
| Build A Dormer Loft Conversion near Reigate | £40 | £270 |
| Build A Dormer Loft Conversion near Tadworth | £41 | £271 |
| Build A Dormer Loft Conversion near Sutton | £43 | £274 |
| Build A Dormer Loft Conversion near Epsom | £44 | £275 |
| Build A Dormer Loft Conversion near Ewell | £44 | £275 |
| Build A Dormer Loft Conversion near Horley | £38 | £258 |
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 - £17,828

Two storey extension - £88,492

Build a timber frame extension - £26,328

Build a swimming pool - £81,328

Single storey extension - £61,560

Side return extension - £45,190

Install an RSJ - £2,528

Outbuilding - £10,328

Build a Mansard loft conversion - £52,328

Loft conversion - £36,825

Build a kitchen extension - £42,328

Hip to gable loft conversion - £42,328

Granny annexe - £87,328

Garden office - £10,328

Convert a Garage - £16,328

Garage - £18,828

Build a flat roof extension - £22,328

Build a dormer loft conversion - £42,328

Concrete foundations - £6,578

Convert a bungalow loft - £29,328

Convert a basement - £41,190