Name: Extension Builder
Brand: HaMuch
SKU: extension-renovation
Rating: 4.67 (3 reviews)

Find affordable Royston extension builders

Prices range from cheapest £18/hour and £177/day (Jcr) to £34/hour and £268/day (P Wilkinson Building) - average £30/hr and £238/day

HaMuch is Excellent

Local Royston extension builders & latest jobs

"Single story extension" - S70, job posted 05/09/26

"Dormer loft conversion" - S70, job posted 09/05/26

"Granny annexe space for mum with separate quarters" - S72, job posted 07/05/26

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 Royston extension builders rates

Compare Royston extension builders rates (excluding VAT or callout charges)
Location in UK	Hourly Rate	Daily Rate
Extension Builders near Barnsley	£31	£242
Extension Builders near Wakefield	£31	£240
Extension Builders near Ossett	£33	£245
Extension Builders near Normanton	£30	£233
Extension Builders near Pontefract	£30	£228
Extension Builders near Dewsbury	£33	£245
Extension Builders near Rotherham	£33	£257
Extension Builders near Castleford	£30	£225
Extension Builders near Mirfield	£31	£236
Extension Builders near Rothwell	£30	£230

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 - £25,912

Garden office - £9,912

Granny annexe - £86,912

Build a flat roof extension - £21,912

Convert a Garage - £15,912

Hip to gable loft conversion - £41,912

Convert a bungalow loft - £28,912

Build a dormer loft conversion - £41,912

Build a swimming pool - £80,912

Build a Mansard loft conversion - £51,912

Concrete foundations - £6,162

Underpin a building - £17,412

Two storey extension - £87,868

Convert a basement - £36,510

Side return extension - £40,510

Loft conversion - £32,925

Garage - £18,412

Single storey extension - £53,240

Outbuilding - £9,912

Install an RSJ - £2,112

Build a kitchen extension - £41,912

More extensions & conversions cost guides...

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