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Benjamin Belsey
Salisbury, SP2
Arkson builders ltd is an established and experienced local extension builder in Salisbury. Please contact us for a free, no obligation quote and c...
From £22,152
Need an Extension Builder in Salisbury? Moores Build has been helping local clients (20 mile radius) with their extension buildering jobs for many ...
From £21,312
Noel Higginson
Salisbury, SP2
NHBC takes great pride in what it does with a very high attention to detail
From £22,040
Need an Extension Builder in Salisbury? BARTITIONS DESIGN & BUILD LTD has been helping local clients (20 mile radius) with their extension builder...
From £22,312
Shape Project Management is an established and experienced local extension builder in Salisbury. Please contact us for a free, no obligation quote ...

A flat roof extension ranges from the cheapest of £21,312 (NHBC based in SP2) to the dearest of £22,312 (Shape Project Management based in SP5), but these are just estimates. While they give you an idea of who will be better value, the best way to compare costs is to get real quotes.
Find out how much your flat roof extension will cost in Salisbury by posting a job with HaMuch. We'll send it to extension builders in Salisbury.
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Build A Flat Roof Extension near Salisbury | £35 | £247 |
| Build A Flat Roof Extension near Test Valley | £37 | £261 |
| Build A Flat Roof Extension near Romsey | £32 | £230 |
| Build A Flat Roof Extension near New Forest | £32 | £245 |
| Build A Flat Roof Extension near Totton | £34 | £243 |
| Build A Flat Roof Extension near Andover | £40 | £248 |
| Build A Flat Roof Extension near Chandler's Ford | £34 | £245 |
| Build A Flat Roof Extension near Eastleigh | £34 | £244 |
| Build A Flat Roof Extension near Southampton | £34 | £243 |
| Build A Flat Roof Extension near Devizes | £32 | £242 |
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 - £17,490

Two storey extension - £87,986

Build a timber frame extension - £25,990

Build a swimming pool - £80,990

Single storey extension - £54,808

Side return extension - £41,392

Install an RSJ - £2,190

Outbuilding - £9,990

Build a Mansard loft conversion - £51,990

Loft conversion - £33,660

Build a kitchen extension - £41,990

Hip to gable loft conversion - £41,990

Granny annexe - £86,990

Garden office - £9,990

Convert a Garage - £15,990

Garage - £18,490

Build a flat roof extension - £21,990

Build a dormer loft conversion - £41,990

Concrete foundations - £6,240

Convert a bungalow loft - £28,990

Convert a basement - £37,392