Name: Extension Builder
Brand: HaMuch
SKU: extension-renovation
Rating: 4.71 (14 reviews)

Find affordable BL9 extension builders

Prices range from cheapest £20/hour and £120/day (Aquatec Builder) to £33/hour and £245/day (ESBP Specialists Ltd) - average £29/hr and £214/day

HaMuch is Excellent

Local BL9 extension builders & recently posted jobs

"Install an RSJ" - M27, job posted 02/09/26

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

"Suppliers are invited to express interest in a tender opportunity for the supply of building construction materials to support public sector projects within the Bury area. Requirements may include construction products, aggregates, timber, concrete, building supplies, and related materials...." - BL9, job posted 09/06/26

"Bungalow loft conversion" - PRESTWICH, job posted 26/04/26

"Kitchen extension" - BL9, job posted 03/03/26

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

"Loft conversion raising roof" - M25, job posted 13/01/26

"Loft dorma conversion" - M45, job posted 29/12/25

"Side return extension" - M45, job posted 07/09/25

"3mx4m rear extension" - OL10, job posted 13/06/25

"Currently a 2 bed semi-detached house in Bury Want to make it a cleaned up 3 bedroom: Build a dormer loft conversion Main bathroom tile & paint Side Shed Removal Lawn and fences once side shed removed Tidying outside step area" - BL9, job posted 10/05/25

"Single storey extension" - PRESTWICH, job posted 16/02/25

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

"Brick block flag paving reparing garden wall works and full shuttring carpenter" - M9, job posted 27/07/24

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 BL9 extension builders rates

Compare BL9 extension builders rates (excluding VAT or callout charges)
Location in UK	Hourly Rate	Daily Rate
Extension Builders near Bury	£30	£220
Extension Builders near Heywood	£30	£222
Extension Builders near Radcliffe	£30	£220
Extension Builders near Whitefield	£31	£229
Extension Builders near Prestwich	£31	£234
Extension Builders near Middleton	£31	£227
Extension Builders near Rochdale	£30	£221
Extension Builders near Farnworth	£30	£219
Extension Builders near Swinton	£32	£235
Extension Builders near Bolton	£31	£219

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 - £25,712

Garden office - £9,712

Granny annexe - £86,712

Build a flat roof extension - £21,712

Convert a Garage - £15,712

Hip to gable loft conversion - £41,712

Convert a bungalow loft - £28,712

Build a dormer loft conversion - £41,712

Build a swimming pool - £80,712

Build a Mansard loft conversion - £51,712

Concrete foundations - £5,962

Underpin a building - £17,212

Two storey extension - £87,568

Convert a basement - £34,260

Side return extension - £38,260

Loft conversion - £31,050

Garage - £18,212

Single storey extension - £49,240

Outbuilding - £9,712

Install an RSJ - £1,912

Build a kitchen extension - £41,712

More extensions & conversions cost guides...

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