From £42,360
Relax... you have found a reliable extension builder in RH4. Atp Building Services is a friendly and reliable company based in RH4 who consider no ...
From £36,510
Experienced extension builder ready to quote for your work. Mole Valley Builders is the best extension builder in RH4. No obligation free quotes an...
From £39,390
Established in 2013, Mole Valley Builders is a family-owned, independent building company. Our team shares more than 40 years of industry experienc...
From £42,900
Stovetech Surrey are professional installers of multi-fuel and wood burning stoves.We are OFTEC registered ensuring that all of our work co...
From £42,090
Garage Door Repairs is an established extension buildering business in RH4. We come highly recommended and provide competitive quotes for your work...
From £39,120
Surrey Hills Construction is an established and experienced local extension builder in RH4. Please contact us for a free, no obligation quote and c...
From £43,440
Founded in 2011 by Clive Bordoli and Jim Kelting, we set out to form and lead a team of tradesmen who could share our work ethic and attention to d...
From £38,940
Need an Extension Builder in RH4? Albany Roofing & Guttering has been helping local clients (10 mile radius) with their extension buildering jobs f...
From £42,000
Please visit our web site at for full detailed photos of previous projects and clients testimonials.
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Comparing extension builders estimates for a Convert a basement gives you an idea of who will be better value but the best way to compare costs is to get actual quotes.
What to do - Get rates and quotes for the cost to convert a basement in RH4 by posting a job with HaMuch and we will send it to extension builders in RH4.
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Convert A Basement near Great Bookham | £42 | £281 |
| Convert A Basement near Reigate | £40 | £270 |
| Convert A Basement near Tadworth | £41 | £271 |
| Convert A Basement near Reigate & Banstead | £41 | £271 |
| Convert A Basement near Epsom | £43 | £274 |
| Convert A Basement near Redhill | £41 | £269 |
| Convert A Basement near Horley | £38 | £258 |
| Convert A Basement near Ewell | £43 | £274 |
| Convert A Basement near Esher | £43 | £274 |
| Convert A Basement near Elmbridge | £43 | £277 |
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 - £17,766

Two storey extension - £88,400

Build a timber frame extension - £26,266

Build a swimming pool - £81,266

Single storey extension - £60,328

Side return extension - £44,497

Install an RSJ - £2,466

Outbuilding - £10,266

Build a Mansard loft conversion - £52,266

Loft conversion - £36,248

Build a kitchen extension - £42,266

Hip to gable loft conversion - £42,266

Granny annexe - £87,266

Garden office - £10,266

Convert a Garage - £16,266

Garage - £18,766

Build a flat roof extension - £22,266

Build a dormer loft conversion - £42,266

Concrete foundations - £6,516

Convert a bungalow loft - £29,266

Convert a basement - £40,497