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Select your affordable Diss extension builder
Diss, IP22
Small extension, to full turn key new house builds, listed building works, renovations. We provide a full comprehensive quotation for all your need...
From £21,856
Diss, IP22
Experienced extension builder ready to quote for your work. Beechwood Building Services is the best extension builder in Diss. No obligation free q...
From £21,776
Diss, IP22
Trusted and professional extension builder in Diss. Experienced in all extension buildering work and keeping within budget and on quote. RD FARROW ...

A flat roof extension ranges from the cheapest of £21,688 (Inspired Building Services Ltd based in NR16) to the dearest of £22,224 (SUFFOLK BUILD LTD T/A based in IP22), 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 Diss by posting a job with HaMuch. We'll send it to extension builders in Diss.
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Build A Flat Roof Extension near Stowmarket | £30 | £221 |
| Build A Flat Roof Extension near Thetford | £42 | £277 |
| Build A Flat Roof Extension near Breckland | £28 | £248 |
| Build A Flat Roof Extension near Bury St Edmunds | £34 | £251 |
| Build A Flat Roof Extension near Norwich | £25 | £200 |
| Build A Flat Roof Extension near Dereham | £25 | £203 |
| Build A Flat Roof Extension near Suffolk Coastal | £28 | £215 |
| Build A Flat Roof Extension near Ipswich | £33 | £235 |
| Build A Flat Roof Extension near Waveney | £24 | £200 |
| Build A Flat Roof Extension near Sudbury | £34 | £229 |
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 - £17,386

Two storey extension - £87,829

Build a timber frame extension - £25,886

Build a swimming pool - £80,886

Single storey extension - £52,720

Side return extension - £40,218

Install an RSJ - £2,086

Outbuilding - £9,886

Build a Mansard loft conversion - £51,886

Loft conversion - £32,681

Build a kitchen extension - £41,886

Hip to gable loft conversion - £41,886

Granny annexe - £86,886

Garden office - £9,886

Convert a Garage - £15,886

Garage - £18,386

Build a flat roof extension - £21,886

Build a dormer loft conversion - £41,886

Concrete foundations - £6,136

Convert a bungalow loft - £28,886

Convert a basement - £36,218