Name: Extension Builder
Brand: HaMuch
SKU: extension-renovation
Rating: 4.75 (20 reviews)

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Find affordable M12 extension builders

Prices range from cheapest £27/hour and £201/day (MyDestigo) to £36/hour and £260/day (Avon Piping Limited) - average £32/hr

HaMuch is Excellent

Local M12 extension builders

"Side return extension" - CARLTON, M16

"Rear extension, ensuite and living room" - M15

"HANG 3 NEW DOORS IN NEW FRAMES" - STEVE, M18

"Rear extension" - M43

"Loft conversion" - LIAM, OL7

"Single storey extension" - MANCHESTER

"Loft conversion raising roof" - M25

"Timber frame extension" - M2

"Loft conversion" - FAHAD, M21

"Kitchen extension builders needed" - MAHAMAD, M40

"Need free survey on extension" - MAHAMAD, M40

"Need bedroom 2 knocking into bathroom using some space to create bedroom 2 bigger as it’s small and the bathroom then taking a bit of space from bedroom 3 as it is a lot bigger." - MARY, M18

"Side return extension" - M20

"Looking for price for a dormer for 2 bed terraced house" - ASID, M19

"Roof top extension with a bathroom" - M40

"Loft conversion with a dormer. Dormer to be 4m wide and 3m deep. The rafters to the floor is only 1.85m so the ceiling would need to be dropped in a 5m by 4.3m square of it needs to hit the 2.2m regulation. Thanks for your help in advance" - MICHAEL, M9

"Timber frame extension" - MANCHESTER

"RSJ installation replacing a badly installed RSJ that supports a wall between the old kitchen and rear lounge. The original builder installed the incorrect weight (not heavy enough) and then proceeded to put a suppirt bar underneath by welding. The weld buckled the beam and this is how its been..." - GILL, SK4

"Outbuilding" - M15

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 M12 extension builders rates

Compare M12 extension builders rates (excluding VAT or callout charges)
Location in UK	Hourly Rate	Daily Rate
Extension Builders near Manchester	£27	£204
Extension Builders near Reddish	£29	£202
Extension Builders near Droylsden	£30	£203
Extension Builders near Old Trafford	£27	£203
Extension Builders near Denton	£30	£201
Extension Builders near Failsworth	£30	£202
Extension Builders near Salford	£28	£203
Extension Builders near Stretford	£27	£203
Extension Builders near Dukinfield	£30	£201
Extension Builders near Tameside	£30	£201

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 - £25,840

Garden office - £9,840

Granny annexe - £86,840

Build a flat roof extension - £21,840

Convert a Garage - £15,840

Hip to gable loft conversion - £41,840

Convert a bungalow loft - £28,840

Build a dormer loft conversion - £41,840

Build a swimming pool - £80,840

Build a Mansard loft conversion - £51,840

Concrete foundations - £6,090

Underpin a building - £17,340

Two storey extension - £87,760

Convert a basement - £35,700

Side return extension - £39,700

Loft conversion - £32,250

Garage - £18,340

Single storey extension - £51,800

Outbuilding - £9,840

Install an RSJ - £2,040

Build a kitchen extension - £41,840

More extensions & conversions cost guides...

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