Name: Extension Builder
Brand: HaMuch
SKU: extension-renovation
Rating: 4.7 (15 reviews)

Find local affordable M23 extension builders

Cheapest £22/hour & £201/day (Builders Manchester) to £36/hour & £257/day (Field design & build ltd) - average £31/hour & £227/day

Sort by rates or availability

"Side return extension" - M16, job posted 04/07/26

"Rear extension, ensuite and living room" - M15, job posted 03/04/26

"Single storey extension" - SK8, job posted 21/03/26

"Loft conversion" - M21, job posted 06/08/25

"Knock kitchen wall down and Install an RSJ" - M33, job posted 09/05/25

"Side return extension" - M20, job posted 26/04/25

"Rear extension 6x3m" - TRAFFORD, job posted 03/04/25

"Side return extension" - TRAFFORD, job posted 03/04/25

"Loft conversion" - WA15, job posted 13/03/25

"Outbuilding" - M15, job posted 18/01/25

"Single storey extension" - WYTHENSHAWE, job posted 28/11/24

"Two storey extension" - TRAFFORD, job posted 22/11/24

"Remove small outbuilding (1.5m x 1.6m) and small kitchen extension with one window" - SK3, job posted 23/10/24

"Side return extension" - TRAFFORD, job posted 24/07/24

"I need a neat bricklayer to bring down a bowed gable end and rebuild it in Moss Side, Manchester. Must have public liability insurance." - M14, job posted 15/09/23

What are the best ways to avoid problems when paying the Extension Builder?

The most important thing is do avoid handing over cash or paying large sums in advance. Be wary of paying cash for a cheaper job, i.e. to avoid VAT, you may be going down a slippery slope of not doing things properly which may eventually mean your job is also not done properly.

Agree when you intend to pay, ideally after you are satisfied with the completed job. If it is a big job agree a schedule of staged payments which is fair to both parties.

To avoid bad tradespeople and to ensure you can find them should they not answer a mobile;

Get proper contact details and check them yourself
Check if the company is verified on the Companies House website
Get phone details, ideally a land line or 0800 number and check it
Get a physical office address

Before the job starts should I agree standards of quality and behaviour?

Get quotes in writing by email or in person if possible. Getting quotes online or by text is ok (make sure you accept the offer by replying). For large projects make a written agreement, schedule of works and snagging plans as part of a working document. Also;

Agree expected quality of workmanship and materials in advance
When will work start and when will project be finished, what happens if project over runs ?
How long is the guarantee on work and materials eg 12 months
Discuss onsite behaviour in advance (no smoking, swearing or using mobile phones for non-work purposes)
Agree that your Extension Builder will remove all debris and rubbish and what level of tidying up you want after job

Compare M23 extension builders rates

Compare M23 extension builders rates (excluding VAT or callout charges)
Location in UK	Hourly Rate	Daily Rate
Extension Builders near Wythenshawe	£31	£229
Extension Builders near Gatley	£31	£230
Extension Builders near Sale	£32	£235
Extension Builders near Altrincham	£32	£228
Extension Builders near Trafford	£32	£235
Extension Builders near Stretford	£32	£235
Extension Builders near Old Trafford	£32	£236
Extension Builders near Cheadle Hulme	£31	£232
Extension Builders near Urmston	£32	£231
Extension Builders near Wilmslow	£31	£230

Job estimates from extension builders near you

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.

Build a timber frame extension - £25,816

Garden office - £9,816

Granny annexe - £86,816

Build a flat roof extension - £21,816

Convert a Garage - £15,816

Hip to gable loft conversion - £41,816

Convert a bungalow loft - £28,816

Build a dormer loft conversion - £41,816

Build a swimming pool - £80,816

Build a Mansard loft conversion - £51,816

Concrete foundations - £6,066

Underpin a building - £17,316

Two storey extension - £87,724

Convert a basement - £35,430

Side return extension - £39,430

Loft conversion - £32,025

Garage - £18,316

Single storey extension - £51,320

Outbuilding - £9,816

Install an RSJ - £2,016

Build a kitchen extension - £41,816

More extensions & conversions cost guides...

People in M23 searching for a Extension Builder also viewed...

Painter and Decorator

The Largest Database of UK Trade Rates

At HaMuch we know what tradespeople charge because we have the largest database of rates anywhere in the UK. If you want quotes for jobs at the right price for you, post your jobs with HaMuch and get your home improvements kickstarted straight away!

Appliance Repair Specialist

Conservatory Specialist