From £21,752
Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of extension builde...
From £22,360
Over 25 years experience in the building industry
Any job from a light switch to building a house give me a call
From £21,608
RB Building Services is an established extension buildering business in DN39. We come highly recommended and provide competitive quotes for your wo...
From £22,056
Patchett's Property Solutions & Management is an established and experienced local extension builder in DN39. Please contact us for a free, no obli...
From £21,688
JAK SITE SERVICES LIMITIED is an established extension buildering business in DN39. We come highly recommended and provide competitive quotes for y...
From £21,608
Experienced extension builder ready to quote for your work. City Builders is the best extension builder in DN39. No obligation free quotes and many...
From £21,848
Dan's News youth club is an established and experienced local extension builder in DN39. Please contact us for a free, no obligation quote and comp...
From £21,968
Relax... you have found a reliable extension builder in DN39. APPLEWOOD JOINERS&BUILDERS LTD is a friendly and reliable company based in DN39 who c...
From £21,616
Need an Extension Builder in DN39? S.E.S Services has been helping local clients (20 mile radius) with their extension buildering jobs for many yea...
From £21,856
We specialise in converting unused areas into liveable, useful spaces. Talk to us about your ideas and we can work together to convert your lof...

A flat roof extension ranges from the cheapest of £21,608 (RB Building Services based in HU3) to the dearest of £22,360 (Ahs joinery and building ltd based in HU13), 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 DN39 by posting a job with HaMuch. We'll send it to extension builders in DN39.
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Build A Flat Roof Extension near Hull | £29 | £223 |
| Build A Flat Roof Extension near North Lincolnshire | £28 | £216 |
| Build A Flat Roof Extension near Willerby | £29 | £221 |
| Build A Flat Roof Extension near North East Lincolnshire | £32 | £246 |
| Build A Flat Roof Extension near Grimsby | £32 | £246 |
| Build A Flat Roof Extension near Cleethorpes | £32 | £246 |
| Build A Flat Roof Extension near Scunthorpe | £26 | £207 |
| Build A Flat Roof Extension near East Riding | £29 | £223 |
| Build A Flat Roof Extension near Beverley | £29 | £223 |
| Build A Flat Roof Extension near Gainsborough | £30 | £234 |
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 - £17,336

Two storey extension - £87,754

Build a timber frame extension - £25,836

Build a swimming pool - £80,836

Single storey extension - £51,720

Side return extension - £39,655

Install an RSJ - £2,036

Outbuilding - £9,836

Build a Mansard loft conversion - £51,836

Loft conversion - £32,213

Build a kitchen extension - £41,836

Hip to gable loft conversion - £41,836

Granny annexe - £86,836

Garden office - £9,836

Convert a Garage - £15,836

Garage - £18,336

Build a flat roof extension - £21,836

Build a dormer loft conversion - £41,836

Concrete foundations - £6,086

Convert a bungalow loft - £28,836

Convert a basement - £35,655