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Relax... you have found a reliable extension builder in Test Valley. Bob Shearer Property Maintenance, Building & Roofing is a friendly and reliabl...
From £42,040
Need an Extension Builder in Test Valley? BARTITIONS DESIGN & BUILD LTD has been helping local clients (20 mile radius) with their extension build...
From £42,120
Our building services company Shadow UK Construction Ltd was established in March 2022, but have been providing professional, trustworthy building ...
From £42,104
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 £42,072
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 £41,752
4Walls Project Management Ltd is an established and experienced local extension builder in Test Valley. Please contact us for a free, no obligation...
From £41,896
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...

In Test Valley, prices for dormer loft conversions range from £41,752 (4Walls Project Management Ltd based in SP10) to £42,120 (Shadow UK Construction Ltd based in SO20), 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 Test Valley. 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 Test Valley | £37 | £261 |
| Build A Dormer Loft Conversion near Andover | £40 | £248 |
| Build A Dormer Loft Conversion near Romsey | £32 | £230 |
| Build A Dormer Loft Conversion near Salisbury | £35 | £247 |
| Build A Dormer Loft Conversion near Winchester | £39 | £283 |
| Build A Dormer Loft Conversion near Chandler's Ford | £34 | £245 |
| Build A Dormer Loft Conversion near Eastleigh | £34 | £244 |
| Build A Dormer Loft Conversion near Totton | £34 | £243 |
| Build A Dormer Loft Conversion near Southampton | £34 | £243 |
| Build A Dormer Loft Conversion 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