From £21,736
Lostock Design & Build Limited is an established and experienced local extension builder in Horwich. Please contact us for a free, no obligation qu...
From £21,632
Fishers Building & Paving Ltd is an established extension buildering business in Horwich. We come highly recommended and provide competitive quotes...
From £22,040
PETER BALDWIN BUILDERS is an established extension buildering business in Horwich. We come highly recommended and provide competitive quotes for yo...
From £21,688
Lostock Design & Build is an established and experienced local extension builder in Horwich. Please contact us for a free, no obligation quote and ...
From £21,808
Need an Extension Builder in Horwich? CB BUILDING & JOINERY LTD has been helping local clients (20 mile radius) with their extension buildering job...
From £21,600
Relax... you have found a reliable extension builder in Horwich. VOSE CONSTRUCTION LTD is a friendly and reliable company based in Horwich who cons...
From £21,456
APS pointing and property maintenance offers a complete building service from small patch pointing to full refurb or extensions. Competitiv...
From £22,080
Astley Bridge Building Services have been established since 1999 and offer quality building services to the public who are looking for a personal s...
From £22,048
HAROLDS CORP is a trusted extension builder serving customers in Horwich and the surrounding area. Contact us to today to get a competitive quote f...
From £21,776
Relax... you have found a reliable extension builder in Horwich. Jc Properties is a friendly and reliable company based in Horwich who consider no ...

A flat roof extension ranges from the cheapest of £21,456 (Aps pointing and property maintenance based in WN2) to the dearest of £22,080 (Astley Bridge Building Services based in BL1), 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 Horwich by posting a job with HaMuch. We'll send it to extension builders in Horwich.
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Build A Flat Roof Extension near Horwich | £30 | £219 |
| Build A Flat Roof Extension near Westhoughton | £31 | £222 |
| Build A Flat Roof Extension near Hindley | £30 | £218 |
| Build A Flat Roof Extension near Bolton | £31 | £219 |
| Build A Flat Roof Extension near Atherton | £31 | £223 |
| Build A Flat Roof Extension near Wigan | £30 | £219 |
| Build A Flat Roof Extension near Chorley | £30 | £221 |
| Build A Flat Roof Extension near Little Hulton | £30 | £220 |
| Build A Flat Roof Extension near Farnworth | £30 | £219 |
| Build A Flat Roof Extension near Leigh | £31 | £224 |
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