Name: Extension Builder
Brand: HaMuch
SKU: extension-renovation
Rating: 4.8 (20 reviews)

Find affordable B12 extension builders - average £24/hr

Prices range from cheapest £11.5/hour and £10/day (Saif Builders) to £26/hour and £203/day (Millennium Consultancy Services Ltd)

Local B12 extension builders

"Refurb whole house" - B92

"Garage conversion" - ZRA, B92

"Loft conversion" - B30

"Loft conversion" - B68

"RSJ installation" - LIAM, B90

"Rear single storey extension 18sm kitchen & shower room with 2 beams" - MOHAMMED, B36

"Concrete foundation" - B29

"Timber frame extension At present there is a side garage which is in a state of disrepair, on a lower height to the house. Ideally we would like to have a wooden extension along the complete side of the house at the same height as the house, as well as across the rear of the house. We would also..." - DAVID, B26

"Two storey extension" - WEST MIDLANDS

"Loft conversion" - RYAN, B28

"Rear extension to incorporate toilet and downstairs shower, utility area." - DAWN, SHELDON

"We would like a builder for a 3m extension to the back of our house (similar to a conservatory)." - SHEIKH, B30

"TV aerial install" - GURMEET, B11

"How much to install a shed or outbuilding in the back garden?" - M, B27

"Build an outbuilding" - B14

"RSJ installation" - BIRMINGHAM

"House kitchen Extension" - ERIK, BIRMINGHAM

"Hip to gable loft conversion" - BIRMINGHAM

"Terraced house. Single storey extension on the rear. We have a side entry brick utility with a brick shed attached to the back we would like to inco6this area into a utility and downstairs toilet/shower area." - SEAN, BIRMINGHAM

"Loft conversion hip to gable and garden office" - CAMERON, BIRMINGHAM

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 B12 extension builders rates

Compare B12 extension builders rates (excluding VAT or callout charges)
Location in UK	Hourly Rate	Daily Rate
Extension Builders near Birmingham	£25	£197
Extension Builders near Smethwick	£25	£195
Extension Builders near Oldbury	£25	£196
Extension Builders near Solihull	£24	£194
Extension Builders near Halesowen	£25	£197
Extension Builders near West Bromwich	£25	£195
Extension Builders near Sutton Coldfield	£25	£202
Extension Builders near Rowley Regis	£25	£196
Extension Builders near Sandwell	£25	£196
Extension Builders near Knowle	£26	£203

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 - £25,536

Garden office - £9,536

Granny annexe - £86,536

Build a flat roof extension - £21,536

Convert a Garage - £15,536

Hip to gable loft conversion - £41,536

Convert a bungalow loft - £28,536

Build a dormer loft conversion - £41,536

Build a swimming pool - £80,536

Build a Mansard loft conversion - £51,536

Concrete foundations - £5,786

Underpin a building - £17,036

Two storey extension - £87,304

Convert a basement - £32,280

Side return extension - £36,280

Loft conversion - £29,400

Garage - £18,036

Single storey extension - £45,720

Outbuilding - £9,536

Install an RSJ - £1,736

Build a kitchen extension - £41,536

More extensions & conversions cost guides...

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