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

Find local affordable Farnley extension builders

Cheapest £26/hour & £204/day (AAA BUILDERS) to £42/hour & £289/day (DAVID HARRISON BUILDING) - average £31/hour & £235/day

Sort by rates or availability

"Build a dormer loft conversion" - BD11, job posted 25/09/26

"Single storey extension" - LS26, job posted 23/09/26

"Half loft extension. Add dorma roof" - LS17, job posted 08/06/26

"Half loft extension ie just add dorma. Stairs and bathroom already in" - LS17, job posted 08/06/26

"Loft conversion" - LEEDS, job posted 07/04/26

"Flat roof extension" - LEEDS, job posted 25/02/26

"Loft conversion" - LS11, job posted 02/02/26

"Velux loft conversion" - BD4, job posted 31/01/26

"I'm looking a builder to remove in-between wall in my kitchen" - LS8, job posted 19/01/26

"Loft conversion with dormer, 2 rooms and a bathroom, may be open to velux option depending on space attainable. Apologies to all genuine and skilled builders trades person. Only professionals who have carried out this type of work as I will be asking for references and checking their previous..." - LEEDS, job posted 17/10/25

"Loft conversion with or without a dormer" - BD4, job posted 14/10/25

"Loft conversion" - LEEDS, job posted 08/10/25

"Single storey extension" - LEEDS, job posted 19/09/25

"Loft conversion" - LEEDS, job posted 30/08/25

"I need election inmy house all electric gone off I haven't got no lights" - LEEDS, job posted 17/07/25

"To contact my old employee ; from Adam" - LS2, job posted 30/06/25

"Garage building to side of house" - LS16, job posted 30/06/25

"Two storey extension" - LEEDS, job posted 08/04/25

"Two storey extension" - LEEDS, job posted 20/12/24

"Experts in Extention’s" - LS13, job posted 03/11/24

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 Farnley extension builders rates

Compare Farnley extension builders rates (excluding VAT or callout charges)
Location in UK	Hourly Rate	Daily Rate
Extension Builders near Beeston	£31	£236
Extension Builders near Leeds	£31	£236
Extension Builders near Pudsey	£30	£226
Extension Builders near Chapeltown	£30	£232
Extension Builders near Morley	£31	£239
Extension Builders near Batley	£32	£239
Extension Builders near Rothwell	£30	£230
Extension Builders near Bradford	£29	£224
Extension Builders near Dewsbury	£33	£245
Extension Builders near Ossett	£33	£245

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 - £25,856

Garden office - £9,856

Granny annexe - £86,856

Build a flat roof extension - £21,856

Convert a Garage - £15,856

Hip to gable loft conversion - £41,856

Convert a bungalow loft - £28,856

Build a dormer loft conversion - £41,856

Build a swimming pool - £80,856

Build a Mansard loft conversion - £51,856

Concrete foundations - £6,106

Underpin a building - £17,356

Two storey extension - £87,784

Convert a basement - £35,880

Side return extension - £39,880

Loft conversion - £32,400

Garage - £18,356

Single storey extension - £52,120

Outbuilding - £9,856

Install an RSJ - £2,056

Build a kitchen extension - £41,856

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