From £22,864
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large or small we build them all

A flat roof extension ranges from the cheapest of £22,864 (D C BUILDING SERVICES based in TD9) to the dearest of £22,864 (D C BUILDING SERVICES based in TD9), 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 Rochester-upon-medway by posting a job with HaMuch. We'll send it to extension builders in Rochester-upon-medway.
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Build A Flat Roof Extension near Scottish Borders | £35 | £287 |
| Build A Flat Roof Extension near Ashington | £44 | £280 |
| Build A Flat Roof Extension near Cramlington | £36 | £256 |
| Build A Flat Roof Extension near Blyth | £42 | £288 |
| Build A Flat Roof Extension near Longbenton | £34 | £234 |
| Build A Flat Roof Extension near Newcastle Upon Tyne | £33 | £236 |
| Build A Flat Roof Extension near Consett | £33 | £241 |
| Build A Flat Roof Extension near Gateshead | £33 | £236 |
| Build A Flat Roof Extension near Wallsend | £34 | £245 |
| Build A Flat Roof Extension near Stanley | £34 | £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 - £18,364

Two storey extension - £89,296

Build a timber frame extension - £26,864

Build a swimming pool - £81,864

Single storey extension - £72,280

Side return extension - £51,220

Install an RSJ - £3,064

Outbuilding - £10,864

Build a Mansard loft conversion - £52,864

Loft conversion - £41,850

Build a kitchen extension - £42,864

Hip to gable loft conversion - £42,864

Granny annexe - £87,864

Garden office - £10,864

Convert a Garage - £16,864

Garage - £19,364

Build a flat roof extension - £22,864

Build a dormer loft conversion - £42,864

Concrete foundations - £7,114

Convert a bungalow loft - £29,864

Convert a basement - £47,220