From £22,480
On time/ professional/ time served/trustworthy
From £22,912
Trusted General Builders in Durham From small fixes to full renovations, Radici Construction delivers quality workmanship, clear communication,...
From £22,104
RAINTON CONSTRUCTION LTD is an established and experienced local extension builder in Seaton Sluice. Please contact us for a free, no obligation qu...
From £21,808
ANDREW HUNTER BUILDING SERVICES is an established and experienced local extension builder in Seaton Sluice. Please contact us for a free, no obliga...
From £21,040
Member since July 2020
I have over 40 years experience in the field of construction. Thank you and I hope I will be of service to you.
From £21,784
Trusted and professional extension builder in Seaton Sluice. Experienced in all extension buildering work and keeping within budget and on quote. D...
From £22,480
Arrowhead Construction is a trusted extension builder serving customers in Seaton Sluice and the surrounding area. Contact us to today to get a com...
From £21,992
Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of extension builde...
From £21,936
Building Craft Ltd is an established extension buildering business in Seaton Sluice. We come highly recommended and provide competitive quotes for ...
From £21,984
Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of extension builde...

A flat roof extension ranges from the cheapest of £21,040 (OCC Construction based in NE10) to the dearest of £22,912 (Radici Construction North East Ltd based in DH1), 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 Seaton Sluice by posting a job with HaMuch. We'll send it to extension builders in Seaton Sluice.
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Build A Flat Roof Extension near Whitley Bay | £38 | £268 |
| Build A Flat Roof Extension near Tynemouth | £36 | £257 |
| Build A Flat Roof Extension near North Tyneside | £35 | £253 |
| Build A Flat Roof Extension near Wallsend | £34 | £245 |
| Build A Flat Roof Extension near South Shields | £36 | £257 |
| Build A Flat Roof Extension near Cramlington | £36 | £256 |
| Build A Flat Roof Extension near Blyth | £42 | £288 |
| Build A Flat Roof Extension near Jarrow | £34 | £262 |
| Build A Flat Roof Extension near Longbenton | £34 | £234 |
| Build A Flat Roof Extension near Hebburn | £34 | £246 |
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 - £17,552

Two storey extension - £88,078

Build a timber frame extension - £26,052

Build a swimming pool - £81,052

Single storey extension - £56,040

Side return extension - £42,085

Install an RSJ - £2,252

Outbuilding - £10,052

Build a Mansard loft conversion - £52,052

Loft conversion - £34,238

Build a kitchen extension - £42,052

Hip to gable loft conversion - £42,052

Granny annexe - £87,052

Garden office - £10,052

Convert a Garage - £16,052

Garage - £18,552

Build a flat roof extension - £22,052

Build a dormer loft conversion - £42,052

Concrete foundations - £6,302

Convert a bungalow loft - £29,052

Convert a basement - £38,085