Name: Extension Builder
Brand: HaMuch
SKU: extension-renovation
Rating: 4.58 (19 reviews)

Find affordable YO31 extension builders

Prices range from cheapest £25/hour and £197/day (DRA Renovations) to £34/hour and £255/day (Sophie Brown Limited) - average £30/hr and £233/day

HaMuch is Excellent

Local YO31 extension builders & recently posted jobs

"Loft conversion. Convert the loft of a two bedroom mid terrace into an extra bedroom." - YO24, job posted 29/07/26

"Hi there I am wanting to have a loft conversion done to create an extra bedroom for my son. I am open to what type and quotes for each and I was wondering if you could let me know a rough starting/guide price of what I can expect. If you can get back to me by text or email that would be great thank..." - YO24, job posted 23/06/26

"Single storey extension" - YO32, job posted 25/10/25

"Two storey extension" - YORK, job posted 25/10/25

"Two storey extension" - YORK, job posted 26/08/25

"Loft conversion" - YORK, job posted 07/08/25

"No not interested" - YORK, job posted 04/07/25

"Would like new kitchen done and dishwasher Sink yak dranking bord work top handles Flooring Tailes carpet derpting new roof plumbing plugs windows door windows sill wall paper on wall plate last ceiling paint wire covers out up every were" - YORK, job posted 04/07/25

"Loft conversion on 3 bed Semi. Dormer required but gable end already in place" - YO31, job posted 05/06/25

"Convert a garage" - YO32, job posted 10/04/25

"Side return extension" - YORK, job posted 01/03/25

"Single storey extension" - YO10, job posted 28/02/25

"Garage" - YO26, job posted 18/01/25

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 YO31 extension builders rates

Compare YO31 extension builders rates (excluding VAT or callout charges)
Location in UK	Hourly Rate	Daily Rate
Extension Builders near York	£30	£229
Extension Builders near Selby	£30	£240
Extension Builders near Goole	£26	£217
Extension Builders near Harrogate	£29	£225
Extension Builders near Castleford	£30	£225
Extension Builders near Rothwell	£30	£229
Extension Builders near Chapeltown	£30	£231
Extension Builders near Pontefract	£30	£228
Extension Builders near Leeds	£31	£236
Extension Builders near Normanton	£30	£233

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 - £25,864

Garden office - £9,864

Granny annexe - £86,864

Build a flat roof extension - £21,864

Convert a Garage - £15,864

Hip to gable loft conversion - £41,864

Convert a bungalow loft - £28,864

Build a dormer loft conversion - £41,864

Build a swimming pool - £80,864

Build a Mansard loft conversion - £51,864

Concrete foundations - £6,114

Underpin a building - £17,364

Two storey extension - £87,796

Convert a basement - £35,970

Side return extension - £39,970

Loft conversion - £32,475

Garage - £18,364

Single storey extension - £52,280

Outbuilding - £9,864

Install an RSJ - £2,064

Build a kitchen extension - £41,864

More extensions & conversions cost guides...

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