Name: Extension Builder
Brand: HaMuch
SKU: extension-renovation
Rating: 4.65 (20 reviews)

Find affordable B1 extension builders now

Extension builders rates in B1 range from £24/hour £196/day (Bhogal Construction) to £34/hour £263/day (Multiservice K Construction Ltd). To see prices and availability now for your job click green button.

HaMuch is Excellent

How HaMuch saves you money

Post your job for free

We send your job to ALL B1 extension builders

Compare quotes

Available extension builders in B1 reply

Save Money

Select your affordable B1 extension builder

Post your job

Sort by

"Build a kitchen extension" - B8, job posted 16/09/26

"Build a kitchen extension" - B13, job posted 28/08/26

"Loft conversion" - B30, job posted 26/05/26

"Loft conversion" - B68, job posted 06/05/26

"RSJ installation" - BIRMINGHAM, job posted 13/04/26

"Dormer loft conversion" - B62, job posted 17/03/26

"Garage conversion (separate from main house) into a bedroom" - B42, job posted 17/02/26

"Rear single storey extension 18sm kitchen & shower room with 2 beams" - B36, job posted 26/11/25

"Garden self contained annex" - B68, job posted 10/11/25

"Small downstairs extension to front property, to install a toilet and associated plumbing, remove small brick wall on drive" - B32, job posted 18/10/25

"Two storey extension" - WEST MIDLANDS, job posted 05/10/25

"Concrete foundation" - B29, job posted 03/09/25

"Two storey extension" - WEST MIDLANDS, job posted 03/08/25

"Two storey extension" - B68, job posted 21/07/25

"Two storey extension" - WEST MIDLANDS, job posted 08/06/25

"We would like a builder for a 3m extension to the back of our house (similar to a conservatory)." - B30, job posted 15/03/25

"TV aerial install" - B11, job posted 05/03/25

"Side return extension" - BIRMINGHAM, job posted 24/02/25

"Build an outbuilding" - B44, job posted 15/02/25

"How much to install a shed or outbuilding in the back garden?" - B27, job posted 10/02/25

Compare B1 extension builders rates

Compare B1 extension builders rates (excluding VAT or callout charges)
Location in UK	Hourly Rate	Daily Rate
Extension Builders near Birmingham	£28	£228
Extension Builders near Smethwick	£29	£230
Extension Builders near Oldbury	£29	£229
Extension Builders near West Bromwich	£29	£228
Extension Builders near Halesowen	£28	£225
Extension Builders near Rowley Regis	£29	£228
Extension Builders near Sandwell	£29	£231
Extension Builders near Sutton Coldfield	£28	£227
Extension Builders near Solihull	£29	£231
Extension Builders near Tipton	£29	£228

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 - £25,816

Garden office - £9,816

Granny annexe - £86,816

Build a flat roof extension - £21,816

Convert a Garage - £15,816

Hip to gable loft conversion - £41,816

Convert a bungalow loft - £28,816

Build a dormer loft conversion - £41,816

Build a swimming pool - £80,816

Build a Mansard loft conversion - £51,816

Concrete foundations - £6,066

Underpin a building - £17,316

Two storey extension - £87,724

Convert a basement - £35,430

Side return extension - £39,430

Loft conversion - £32,025

Garage - £18,316

Single storey extension - £51,320

Outbuilding - £9,816

Install an RSJ - £2,016

Build a kitchen extension - £41,816

More extensions & conversions cost guides...

People in B1 searching for a Extension Builder also viewed...

Painter and Decorator

The Largest Database of UK Trade Rates

At HaMuch we know what tradespeople charge because we have the largest database of rates anywhere in the UK. If you want quotes for jobs at the right price for you, post your jobs with HaMuch and get your home improvements kickstarted straight away!

Appliance Repair Specialist

Conservatory Specialist