From £21,704
Cjl Brickwork are here to help customers who need an Extension Builder in M50. We offer a competitive rate to complete all your extension builderin...
From £21,752
Frank Fagan Builders, Joiners & Maintenance Contractors are here to help customers who need an Extension Builder in M50. We offer a competitive rat...
From £21,696
Advance Projects Ltd is a trusted extension builder serving customers in M50 and the surrounding area. Contact us to today to get a competitive quo...
From £21,672
Relax... you have found a reliable extension builder in M50. Rdm Joinery & Building Specialists is a friendly and reliable company based in M50 who...
From £21,800
Need to find an Extension Builder near you for all your extension buildering work?
AD TAYLOR JOINER & BUILDER provides a local, trusted ext...
From £21,784
Need an Extension Builder in M50? Boothwells Building Services has been helping local clients (20 mile radius) with their extension buildering jobs...
From £22,152
With our engineers on board you can be sure that your premises maintain exactly the right temperature in all areas of all buildings for employee an...
From £21,896
Specialist lofts and build company in the North West. Our experienced craftsmen are able to provide a complete service from design to completion.ZE...
From £21,960
Prestige Home Building has been helping customers in Manchester and the surrounding area by providing professional, trustworthy building services. ...
From £21,784
Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of extension builde...

A flat roof extension ranges from the cheapest of £21,672 (Rdm Joinery & Building Specialists based in M27) to the dearest of £22,152 (MT Group based in M41), 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 M50 by posting a job with HaMuch. We'll send it to extension builders in M50.
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Build A Flat Roof Extension near Eccles | £32 | £237 |
| Build A Flat Roof Extension near Salford | £32 | £238 |
| Build A Flat Roof Extension near Swinton | £32 | £235 |
| Build A Flat Roof Extension near Stretford | £32 | £235 |
| Build A Flat Roof Extension near Urmston | £32 | £231 |
| Build A Flat Roof Extension near Old Trafford | £32 | £236 |
| Build A Flat Roof Extension near Manchester | £32 | £236 |
| Build A Flat Roof Extension near Prestwich | £31 | £234 |
| Build A Flat Roof Extension near Sale | £32 | £235 |
| Build A Flat Roof Extension near Trafford | £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 - £17,320

Two storey extension - £87,730

Build a timber frame extension - £25,820

Build a swimming pool - £80,820

Single storey extension - £51,400

Side return extension - £39,475

Install an RSJ - £2,020

Outbuilding - £9,820

Build a Mansard loft conversion - £51,820

Loft conversion - £32,063

Build a kitchen extension - £41,820

Hip to gable loft conversion - £41,820

Granny annexe - £86,820

Garden office - £9,820

Convert a Garage - £15,820

Garage - £18,320

Build a flat roof extension - £21,820

Build a dormer loft conversion - £41,820

Concrete foundations - £6,070

Convert a bungalow loft - £28,820

Convert a basement - £35,475