Name: Extension Builder
Brand: HaMuch
SKU: extension-renovation
Rating: 4.67 (12 reviews)

Find affordable Penwortham extension builders

Prices range from cheapest £26/hour and £191/day (Comprehensive Property Services) to £38/hour and £315/day (T S Building Services Ltd) - average £31/hr and £223/day

HaMuch is Excellent

Local Penwortham extension builders & latest jobs

"Loft conversion" - PRESTON, job posted 19/05/26

"Loft conversion Rear Dormer" - PR2, job posted 18/05/26

"Side return extension" - PRESTON, job posted 18/09/25

"Garage" - PRESTON, job posted 31/07/25

"Dorma conversion tp rear of house to include bedroom and bathroom. Plans already done." - PRESTON, job posted 16/07/25

"Extension in back garden" - PRESTON, job posted 05/05/25

"RSJ installation" - LEYLAND, job posted 30/03/25

"Loft conversion" - PRESTON, job posted 18/03/25

"Loft conversion" - PRESTON, job posted 28/02/25

"Single storey L-shape extension to include bedroom and shower room. Demolishing old garage and converting into an out building" - PRESTON, job posted 25/02/25

"Dear Sir/Madam I'm interested in a loft conversion, ideally with a dormer if permitted (conservation area). I would be grateful for survey and quotation. Thanks in advance Mubeen 71 Victoria Rd, Fulwood, Preston" - PRESTON, job posted 21/05/24

"Side return extension" - PRESTON, job posted 09/12/23

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 Penwortham extension builders rates

Compare Penwortham extension builders rates (excluding VAT or callout charges)
Location in UK	Hourly Rate	Daily Rate
Extension Builders near Penwortham	£30	£218
Extension Builders near Preston	£30	£218
Extension Builders near Fulwood	£31	£217
Extension Builders near Bamber Bridge	£30	£216
Extension Builders near Leyland	£30	£223
Extension Builders near Chorley	£30	£221
Extension Builders near Blackburn	£33	£246
Extension Builders near Darwen	£34	£253
Extension Builders near Lytham St Annes	£28	£206
Extension Builders near Blackpool	£29	£209

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 - £25,768

Garden office - £9,768

Granny annexe - £86,768

Build a flat roof extension - £21,768

Convert a Garage - £15,768

Hip to gable loft conversion - £41,768

Convert a bungalow loft - £28,768

Build a dormer loft conversion - £41,768

Build a swimming pool - £80,768

Build a Mansard loft conversion - £51,768

Concrete foundations - £6,018

Underpin a building - £17,268

Two storey extension - £87,652

Convert a basement - £34,890

Side return extension - £38,890

Loft conversion - £31,575

Garage - £18,268

Single storey extension - £50,360

Outbuilding - £9,768

Install an RSJ - £1,968

Build a kitchen extension - £41,768

More extensions & conversions cost guides...

People in Penwortham 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