From £21,824
Reliable person 25 years experience
if you look on a website rated people and have a look at my ratings
From £21,024
we have over 13 years exp
we go that extra mile to make sure customers are 100 % happy
we cover a 20 miles radus for b26 area...
From £21,688
Trusted and professional extension builder in B33. Experienced in all extension buildering work and keeping within budget and on quote. Castlehall ...
From £21,880
Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of extension builde...
From £21,896
Experienced extension builder ready to quote for your work. DM FLOYD BUILDING is the best extension builder in B33. No obligation free quotes and m...
From £21,608
Need to find an Extension Builder near you for all your extension buildering work?
John Kinloch Construction Ltd provides a local, trusted ...
From £21,680
Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of extension builde...
From £21,984
Need to find an Extension Builder near you for all your extension buildering work?
Dayfos Properties Ltd provides a local, trusted extensio...
From £21,984
Fletcher's Building & Maintenance are a family owned business that understands, in order to achieve our continued success our customers and the...

A flat roof extension ranges from the cheapest of £21,024 (J s building & maintenance services limited based in B26) to the dearest of £21,984 (Dayfos Properties Ltd based in B11), 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 B33 by posting a job with HaMuch. We'll send it to extension builders in B33.
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Build A Flat Roof Extension near Birmingham | £25 | £197 |
| Build A Flat Roof Extension near Solihull | £24 | £194 |
| Build A Flat Roof Extension near Sutton Coldfield | £25 | £202 |
| Build A Flat Roof Extension near Knowle | £26 | £203 |
| Build A Flat Roof Extension near Smethwick | £25 | £195 |
| Build A Flat Roof Extension near Oldbury | £25 | £196 |
| Build A Flat Roof Extension near West Bromwich | £25 | £195 |
| Build A Flat Roof Extension near Sandwell | £25 | £196 |
| Build A Flat Roof Extension near Halesowen | £25 | £197 |
| Build A Flat Roof Extension near Tamworth | £28 | £241 |
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 - £17,200

Two storey extension - £87,550

Build a timber frame extension - £25,700

Build a swimming pool - £80,700

Single storey extension - £49,000

Side return extension - £38,125

Install an RSJ - £1,900

Outbuilding - £9,700

Build a Mansard loft conversion - £51,700

Loft conversion - £30,938

Build a kitchen extension - £41,700

Hip to gable loft conversion - £41,700

Granny annexe - £86,700

Garden office - £9,700

Convert a Garage - £15,700

Garage - £18,200

Build a flat roof extension - £21,700

Build a dormer loft conversion - £41,700

Concrete foundations - £5,950

Convert a bungalow loft - £28,700

Convert a basement - £34,125