From £21,304
Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of extension builde...
From £21,944
Experienced extension builder ready to quote for your work. NIGEL WILLIAMS BUILDING LTD is the best extension builder in CH66. No obligation free q...
From £21,736
Brilliant Homes is an established and experienced local extension builder in CH66. Please contact us for a free, no obligation quote and competitiv...
From £21,680
Oliver-Ricci is an established and experienced local extension builder in CH66. Please contact us for a free, no obligation quote and competitive r...
From £21,824
P M Harris Roofing and Joinery Services is an established extension buildering business in CH66. We come highly recommended and provide competitive...
From £21,624
Glassar Projects is an established and experienced local extension builder in CH66. Please contact us for a free, no obligation quote and competiti...
From £21,696
G P Roofing & Building Service is a trusted extension builder serving customers in CH66 and the surrounding area. Contact us to today to get a comp...
From £21,584
Experienced extension builder ready to quote for your work. Matthew Hannigan Garage Doors is the best extension builder in CH66. No obligation free...
From £21,768
A WALL BUILDING CONTRACTOR are here to help customers who need an Extension Builder in CH66. We offer a competitive rate to complete all your exten...
From £21,600
Need to find an Extension Builder near you for all your extension buildering work?
Zibi Home & Garden Services provides a local, trusted ex...

A flat roof extension ranges from the cheapest of £21,304 (DAVID HORTON T/A based in CH65) to the dearest of £21,944 (NIGEL WILLIAMS BUILDING LTD based in CH63), 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 CH66 by posting a job with HaMuch. We'll send it to extension builders in CH66.
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Build A Flat Roof Extension near Ellesmere Port | £31 | £214 |
| Build A Flat Roof Extension near Bebington | £31 | £222 |
| Build A Flat Roof Extension near Chester | £32 | £220 |
| Build A Flat Roof Extension near Connah's Quay | £33 | £229 |
| Build A Flat Roof Extension near Heswall | £30 | £213 |
| Build A Flat Roof Extension near Hawarden | £33 | £228 |
| Build A Flat Roof Extension near Wirral | £31 | £219 |
| Build A Flat Roof Extension near Birkenhead | £33 | £232 |
| Build A Flat Roof Extension near Liverpool | £33 | £232 |
| Build A Flat Roof Extension near Vale Royal | £35 | £251 |
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 - £17,176

Two storey extension - £87,514

Build a timber frame extension - £25,676

Build a swimming pool - £80,676

Single storey extension - £48,520

Side return extension - £37,855

Install an RSJ - £1,876

Outbuilding - £9,676

Build a Mansard loft conversion - £51,676

Loft conversion - £30,713

Build a kitchen extension - £41,676

Hip to gable loft conversion - £41,676

Granny annexe - £86,676

Garden office - £9,676

Convert a Garage - £15,676

Garage - £18,176

Build a flat roof extension - £21,676

Build a dormer loft conversion - £41,676

Concrete foundations - £5,926

Convert a bungalow loft - £28,676

Convert a basement - £33,855