Name: Extension Builder
Brand: HaMuch
SKU: extension-renovation
Rating: 4.75 (2 reviews)

Find affordable West Lancashire extension builders

Prices range from cheapest £17/hour and £151/day (MND Building Services Ltd) to £36/hour and £253/day (Urban Select Construction) - average £29/hr and £211/day

HaMuch is Excellent

Local West Lancashire extension builders & latest jobs

"Two storey side extension converting garage to a room and utility and open plan kitchen. Plus a rear extension single storey across the back of the house. Demolishing garage and conservatory." - ORMSKIRK, job posted 16/10/25

"Two storey extension" - WEST LANCASHIRE, job posted 01/10/24

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 West Lancashire extension builders rates

Compare West Lancashire extension builders rates (excluding VAT or callout charges)
Location in UK	Hourly Rate	Daily Rate
Extension Builders near West Lancashire	£28	£203
Extension Builders near Ormskirk	£29	£206
Extension Builders near Skelmersdale	£29	£211
Extension Builders near Maghull	£33	£219
Extension Builders near Orrell	£29	£214
Extension Builders near Kirkby	£31	£223
Extension Builders near Southport	£27	£198
Extension Builders near Formby	£23	£162
Extension Builders near Sefton	£33	£219
Extension Builders near Crosby	£33	£222

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 - £25,688

Garden office - £9,688

Granny annexe - £86,688

Build a flat roof extension - £21,688

Convert a Garage - £15,688

Hip to gable loft conversion - £41,688

Convert a bungalow loft - £28,688

Build a dormer loft conversion - £41,688

Build a swimming pool - £80,688

Build a Mansard loft conversion - £51,688

Concrete foundations - £5,938

Underpin a building - £17,188

Two storey extension - £87,532

Convert a basement - £33,990

Side return extension - £37,990

Loft conversion - £30,825

Garage - £18,188

Single storey extension - £48,760

Outbuilding - £9,688

Install an RSJ - £1,888

Build a kitchen extension - £41,688

More extensions & conversions cost guides...

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