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 HP5. GURNEY CONSTRUCTION is a friendly and reliable company based in HP5 who consider no jo...
From £39,840
Relax... you have found a reliable extension builder in HP5. M P TIMLIN (CONSTRUCTION) LTD is a friendly and reliable company based in HP5 who cons...
From £37,770
Trusted and professional extension builder in HP5. Experienced in all extension buildering work and keeping within budget and on quote. ALEXANDER C...
From £39,480
Beech is an established and experienced local extension builder in HP5. Please contact us for a free, no obligation quote and competitive rates. Co...
From £41,460
Distinct Build Ltd. has been built purely on referrals. We care about our client's ideas and needs and work tirelessly to deliver their dreams.
...From £40,110
Our building services company Headline Construction Ltd have twenty years experience and have been helping customers in Berkhamstead, Milton Keynes...

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 HP5 by posting a job with HaMuch and we will send it to extension builders in HP5.
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Convert A Basement near Chesham | £42 | £277 |
| Convert A Basement near Berkhamsted | £41 | £263 |
| Convert A Basement near Dacorum | £42 | £269 |
| Convert A Basement near Hemel Hempstead | £42 | £270 |
| Convert A Basement near Hazlemere | £40 | £272 |
| Convert A Basement near Rickmansworth | £42 | £278 |
| Convert A Basement near Gerrards Cross | £43 | £282 |
| Convert A Basement near High Wycombe | £39 | £272 |
| Convert A Basement near Watford | £43 | £278 |
| Convert A Basement near Wycombe | £40 | £271 |
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 - £17,742

Two storey extension - £88,363

Build a timber frame extension - £26,242

Build a swimming pool - £81,242

Single storey extension - £59,846

Side return extension - £44,226

Install an RSJ - £2,442

Outbuilding - £10,242

Build a Mansard loft conversion - £52,242

Loft conversion - £36,021

Build a kitchen extension - £42,242

Hip to gable loft conversion - £42,242

Granny annexe - £87,242

Garden office - £10,242

Convert a Garage - £16,242

Garage - £18,742

Build a flat roof extension - £22,242

Build a dormer loft conversion - £42,242

Concrete foundations - £6,492

Convert a bungalow loft - £29,242

Convert a basement - £40,226