From £21,592
Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of extension builde...
From £21,720
Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of extension builde...
From £22,000
SBA Facilities is a family run business founded by Director, Josef who has over 25 years of experience with the corporate, commercial, and domestic...
From £21,456
APS pointing and property maintenance offers a complete building service from small patch pointing to full refurb or extensions. Competitiv...
From £22,032
Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of extension builde...
From £22,048
HAROLDS CORP is a trusted extension builder serving customers in M46 and the surrounding area. Contact us to today to get a competitive quote for e...
From £21,816
Construction Covered is a trusted extension builder serving customers in M46 and the surrounding area. Contact us to today to get a competitive quo...
From £21,776
Relax... you have found a reliable extension builder in M46. David Anderson Builders is a friendly and reliable company based in M46 who consider n...
From £21,736
Lostock Design & Build Limited is an established and experienced local extension builder in M46. Please contact us for a free, no obligation quote ...
From £21,688
Lostock Design & Build is an established and experienced local extension builder in M46. Please contact us for a free, no obligation quote and comp...

A flat roof extension ranges from the cheapest of £21,456 (Aps pointing and property maintenance based in WN2) to the dearest of £22,048 (HAROLDS CORP based in WN2), 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 M46 by posting a job with HaMuch. We'll send it to extension builders in M46.
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Build A Flat Roof Extension near Atherton | £27 | £194 |
| Build A Flat Roof Extension near Westhoughton | £27 | £194 |
| Build A Flat Roof Extension near Leigh | £27 | £193 |
| Build A Flat Roof Extension near Little Hulton | £27 | £196 |
| Build A Flat Roof Extension near Hindley | £26 | £191 |
| Build A Flat Roof Extension near Farnworth | £27 | £194 |
| Build A Flat Roof Extension near Bolton | £27 | £193 |
| Build A Flat Roof Extension near Horwich | £27 | £192 |
| Build A Flat Roof Extension near Golborne | £26 | £193 |
| Build A Flat Roof Extension near Wigan | £26 | £188 |
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 - £17,286

Two storey extension - £87,680

Build a timber frame extension - £25,786

Build a swimming pool - £80,786

Single storey extension - £50,728

Side return extension - £39,097

Install an RSJ - £1,986

Outbuilding - £9,786

Build a Mansard loft conversion - £51,786

Loft conversion - £31,748

Build a kitchen extension - £41,786

Hip to gable loft conversion - £41,786

Granny annexe - £86,786

Garden office - £9,786

Convert a Garage - £15,786

Garage - £18,286

Build a flat roof extension - £21,786

Build a dormer loft conversion - £41,786

Concrete foundations - £6,036

Convert a bungalow loft - £28,786

Convert a basement - £35,097