From £21,704
Cjl Brickwork are here to help customers who need an Extension Builder in M6. We offer a competitive rate to complete all your extension buildering...
From £21,960
Mode Projects Ltd is an established and experienced local extension builder in M6. Please contact us for a free, no obligation quote and competitiv...
From £21,896
Trusted and professional extension builder in M6. Experienced in all extension buildering work and keeping within budget and on quote. SK Building ...
From £22,080
Guardian Structural Ltd (Wall Removal Specialists) was created with one goal in mind.... To set the standards. We take pride in being highest rated...
From £21,672
Relax... you have found a reliable extension builder in M6. Rdm Joinery & Building Specialists is a friendly and reliable company based in M6 who c...
From £21,888
Experienced extension builder ready to quote for your work. Advanced Builders & Roofers is the best extension builder in M6. No obligation free quo...
From £21,824
Relax... you have found a reliable extension builder in M6. MCH BUILDERS T/A is a friendly and reliable company based in M6 who consider no job as ...
From £21,984
A wholesale shopping is an individual with a huge number of followers related to fashion and has the ability to influence the thought and purchase ...
From £21,752
Frank Fagan Builders, Joiners & Maintenance Contractors are here to help customers who need an Extension Builder in M6. We offer a competitive rate...
From £21,712
Here at RC Building Services Ltd we pride ourselves on providing reliable, excellent quality and competitively priced building services. Our priori...

A flat roof extension ranges from the cheapest of £21,672 (Rdm Joinery & Building Specialists based in M27) to the dearest of £22,080 (Guardian Structural Ltd (Wall Removal Specialists) based in M3), 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 M6 by posting a job with HaMuch. We'll send it to extension builders in M6.
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Build A Flat Roof Extension near Salford | £32 | £238 |
| Build A Flat Roof Extension near Swinton | £32 | £235 |
| Build A Flat Roof Extension near Manchester | £32 | £236 |
| Build A Flat Roof Extension near Eccles | £32 | £237 |
| Build A Flat Roof Extension near Prestwich | £31 | £234 |
| Build A Flat Roof Extension near Old Trafford | £32 | £236 |
| Build A Flat Roof Extension near Stretford | £32 | £235 |
| Build A Flat Roof Extension near Whitefield | £31 | £229 |
| Build A Flat Roof Extension near Urmston | £32 | £231 |
| Build A Flat Roof Extension near Sale | £32 | £235 |
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 - £17,347

Two storey extension - £87,771

Build a timber frame extension - £25,847

Build a swimming pool - £80,847

Single storey extension - £51,944

Side return extension - £39,781

Install an RSJ - £2,047

Outbuilding - £9,847

Build a Mansard loft conversion - £51,847

Loft conversion - £32,318

Build a kitchen extension - £41,847

Hip to gable loft conversion - £41,847

Granny annexe - £86,847

Garden office - £9,847

Convert a Garage - £15,847

Garage - £18,347

Build a flat roof extension - £21,847

Build a dormer loft conversion - £41,847

Concrete foundations - £6,097

Convert a bungalow loft - £28,847

Convert a basement - £35,781