Name: Extension Builder
Brand: HaMuch
SKU: extension-renovation
Rating: 4.7 (20 reviews)

Find affordable B21 extension builders - average £25/hr

Prices range from cheapest £11.5/hour and £140/day (Elektromodulator2000) to £45/hour and £350/day (Sperin Interiors)

HaMuch is Excellent

Local B21 extension builders

"Loft conversion" - WS10

"Loft conversion" - B68

"Dormer loft conversion" - B62

"Door into garagefrom kitchen how much" - MICHAEL, B74

"Garage conversion (separate from main house) into a bedroom" - WARIS, B42

"Garden self contained annex" - B68

"Concrete foundation" - B29

"New Wetroom for special needs with wheelchair access. Complete build with material,plumbing,wall panels,floor tiles.shower, toilet etc.this will be built joined with a living room. Quotes required.Thanks" - MR, SANDWELL

"Two storey extension" - B68

"Need an extension builder" - MR, SANDWELL

"Two storey extension" - WEST MIDLANDS

"Build an outbuilding" - B44

"WET ROOM WITH WHEELCHAIR ACCESS" - MR, SANDWELL

"2 metres front extension and 3 meters back extension" - WS1

"RSJ installation" - BIRMINGHAM

"House kitchen Extension" - ERIK, BIRMINGHAM

"Underpinning" - WEST BROMWICH

"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 B21 extension builders rates

Compare B21 extension builders rates (excluding VAT or callout charges)
Location in UK	Hourly Rate	Daily Rate
Extension Builders near Smethwick	£25	£195
Extension Builders near Birmingham	£25	£197
Extension Builders near West Bromwich	£25	£195
Extension Builders near Oldbury	£25	£196
Extension Builders near Sandwell	£25	£196
Extension Builders near Rowley Regis	£25	£196
Extension Builders near Wednesbury	£25	£194
Extension Builders near Tipton	£25	£196
Extension Builders near Halesowen	£25	£197
Extension Builders near Walsall	£25	£195

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 - £25,616

Garden office - £9,616

Granny annexe - £86,616

Build a flat roof extension - £21,616

Convert a Garage - £15,616

Hip to gable loft conversion - £41,616

Convert a bungalow loft - £28,616

Build a dormer loft conversion - £41,616

Build a swimming pool - £80,616

Build a Mansard loft conversion - £51,616

Concrete foundations - £5,866

Underpin a building - £17,116

Two storey extension - £87,424

Convert a basement - £33,180

Side return extension - £37,180

Loft conversion - £30,150

Garage - £18,116

Single storey extension - £47,320

Outbuilding - £9,616

Install an RSJ - £1,816

Build a kitchen extension - £41,616

More extensions & conversions cost guides...

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