Relax... you have found a reliable extension builder in Test Valley. Bob Shearer Property Maintenance, Building & Roofing is a friendly and reliabl...
From £37,950
Need an Extension Builder in Test Valley? BARTITIONS DESIGN & BUILD LTD has been helping local clients (20 mile radius) with their extension build...
From £38,850
Our building services company Shadow UK Construction Ltd was established in March 2022, but have been providing professional, trustworthy building ...
From £38,670
JJ Acquisitions ltd is a trusted extension builder serving customers in Test Valley and the surrounding area. Contact us to today to get a competit...
From £38,310
DMT Construction t/a are here to help customers who need an Extension Builder in Test Valley. We offer a competitive rate to complete all your exte...
From £34,710
4Walls Project Management Ltd is an established and experienced local extension builder in Test Valley. Please contact us for a free, no obligation...
From £36,330
Relax... you have found a reliable extension builder in Test Valley. Groundcraft Ltd is a friendly and reliable company based in Test Valley who co...

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 Test Valley by posting a job with HaMuch and we will send it to extension builders in Test Valley.
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Convert A Basement near Test Valley | £37 | £261 |
| Convert A Basement near Andover | £40 | £248 |
| Convert A Basement near Romsey | £32 | £230 |
| Convert A Basement near Salisbury | £35 | £247 |
| Convert A Basement near Winchester | £39 | £283 |
| Convert A Basement near Chandler's Ford | £34 | £245 |
| Convert A Basement near Eastleigh | £34 | £244 |
| Convert A Basement near Totton | £34 | £243 |
| Convert A Basement near Southampton | £34 | £243 |
| Convert A Basement near New Forest | £32 | £245 |
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 - £17,495

Two storey extension - £87,993

Build a timber frame extension - £25,995

Build a swimming pool - £80,995

Single storey extension - £54,909

Side return extension - £41,449

Install an RSJ - £2,195

Outbuilding - £9,995

Build a Mansard loft conversion - £51,995

Loft conversion - £33,707

Build a kitchen extension - £41,995

Hip to gable loft conversion - £41,995

Granny annexe - £86,995

Garden office - £9,995

Convert a Garage - £15,995

Garage - £18,495

Build a flat roof extension - £21,995

Build a dormer loft conversion - £41,995

Concrete foundations - £6,245

Convert a bungalow loft - £28,995

Convert a basement - £37,449