Name: Extension Builder
Brand: HaMuch
SKU: extension-renovation
Rating: 4.63 (20 reviews)

Find affordable Belmont extension builders

Prices range from cheapest £23/hour and £184/day (A AND S SCHOFIELD BLDRS LTD) to £35/hour and £255/day (PETER BALDWIN BUILDERS) - average £30/hr and £220/day

HaMuch is Excellent

Local Belmont extension builders & latest jobs

"Loft conversion or dormer" - BL3, job posted 28/07/26

"Dormer loft conversion" - BL3, job posted 05/07/26

"Two storey extension" - GREATER MANCHESTER, job posted 27/06/26

"Dormer loft conversion" - BOLTON, job posted 27/04/26

"Loft conversion" - BL3, job posted 27/04/26

"Loft conversion" - BOLTON, job posted 16/04/26

"Garage" - GREATER MANCHESTER, job posted 02/03/26

"RSJ installation" - BOLTON, job posted 23/11/25

"Loft conversion" - BOLTON, job posted 27/10/25

"Loft extension with dormer" - BL1, job posted 17/09/25

"RSJ installation" - BOLTON, job posted 17/09/25

"Two storey extension" - BOLTON, job posted 24/04/25

"Two storey extension" - BOLTON, job posted 06/02/25

"Loft conversion" - BOLTON, job posted 16/12/24

"Basement conversion" - GREATER MANCHESTER, job posted 07/12/24

"Loft dormer conversion" - BOLTON, job posted 30/11/24

"Loft conversion" - BOLTON, job posted 22/07/24

"Dorma loft conversion on a 2 bed 68.6m2 ( 739sqft) semi detached bungalow would ideally like two bedrooms and a bathroom In the conversion" - BL7, job posted 22/05/24

"Basement conversion" - BOLTON, job posted 26/03/24

"Looking to extend the home 3 meters out and just under 9 meters width. Knock down a wall between kitchen and room to make it a large open plan kitchen dining area." - BOLTON, job posted 10/03/24

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 Belmont extension builders rates

Compare Belmont extension builders rates (excluding VAT or callout charges)
Location in UK	Hourly Rate	Daily Rate
Extension Builders near Bolton	£31	£219
Extension Builders near Darwen	£34	£253
Extension Builders near Horwich	£30	£219
Extension Builders near Bury	£30	£220
Extension Builders near Farnworth	£30	£219
Extension Builders near Radcliffe	£30	£220
Extension Builders near Westhoughton	£31	£222
Extension Builders near Little Hulton	£30	£220
Extension Builders near Rawtenstall	£29	£213
Extension Builders near Atherton	£31	£223

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 - £25,872

Garden office - £9,872

Granny annexe - £86,872

Build a flat roof extension - £21,872

Convert a Garage - £15,872

Hip to gable loft conversion - £41,872

Convert a bungalow loft - £28,872

Build a dormer loft conversion - £41,872

Build a swimming pool - £80,872

Build a Mansard loft conversion - £51,872

Concrete foundations - £6,122

Underpin a building - £17,372

Two storey extension - £87,808

Convert a basement - £36,060

Side return extension - £40,060

Loft conversion - £32,550

Garage - £18,372

Single storey extension - £52,440

Outbuilding - £9,872

Install an RSJ - £2,072

Build a kitchen extension - £41,872

More extensions & conversions cost guides...

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