From £21,856
From Grandfather to Grandson, we have a combined experience of over 40 years within the construction industry providing a wide range of building se...

A flat roof extension ranges from the cheapest of £21,856 (Stately Home Developments Ltd based in CO14) to the dearest of £21,856 (Stately Home Developments Ltd based in CO14), 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 CO14 by posting a job with HaMuch. We'll send it to extension builders in CO14.
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Build A Flat Roof Extension near Harwich | £34 | £248 |
| Build A Flat Roof Extension near Clacton-on-Sea | £31 | £230 |
| Build A Flat Roof Extension near Tendring | £31 | £226 |
| Build A Flat Roof Extension near Felixstowe | £31 | £231 |
| Build A Flat Roof Extension near Ipswich | £33 | £235 |
| Build A Flat Roof Extension near Colchester | £34 | £232 |
| Build A Flat Roof Extension near Suffolk Coastal | £28 | £215 |
| Build A Flat Roof Extension near Maldon | £36 | £244 |
| Build A Flat Roof Extension near Stowmarket | £30 | £221 |
| Build A Flat Roof Extension near Witham | £36 | £240 |
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 - £17,356

Two storey extension - £87,784

Build a timber frame extension - £25,856

Build a swimming pool - £80,856

Single storey extension - £52,120

Side return extension - £39,880

Install an RSJ - £2,056

Outbuilding - £9,856

Build a Mansard loft conversion - £51,856

Loft conversion - £32,400

Build a kitchen extension - £41,856

Hip to gable loft conversion - £41,856

Granny annexe - £86,856

Garden office - £9,856

Convert a Garage - £15,856

Garage - £18,356

Build a flat roof extension - £21,856

Build a dormer loft conversion - £41,856

Concrete foundations - £6,106

Convert a bungalow loft - £28,856

Convert a basement - £35,880