Name: Extension Builder
Brand: HaMuch
SKU: extension-renovation
Rating: 4.75 (6 reviews)

Find affordable Boothville extension builders

Average Boothville extension builder hourly rate is £29. Prices range from the cheapest £20/hour and £160/day (GW BUILDERS) to £34/hour and £216/day (Samrai Associates Limited).

Select local extension builders

"I need a quote for a second-floor extension sized 3m x 3.5m. Work includes structure, walls, insulation, roof, windows, and basic internal finishing, plus connection to the existing house. Please confirm: Total cos with my material and if with your material Time to complet and when you can..." - ZEQ, NORTHAMPTON

"Side return extension" - NORTHAMPTON

"Loft conversion, 2 beds dormer" - ABIGAIL, NORTHAMPTON

"Dormer Loft conversion" - ISMAIL, NORTHAMPTON

"Basement conversion" - NORTHAMPTON

"Loft conversion" - NORTHAMPTON

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 Boothville extension builders rates

Compare Boothville extension builders rates (excluding VAT or callout charges)
Location in UK	Hourly Rate	Daily Rate
Extension Builders near Northampton	£30	£202
Extension Builders near Wellingborough	£33	£215
Extension Builders near Rushden	£30	£209
Extension Builders near Kettering	£29	£205
Extension Builders near Daventry	£26	£191
Extension Builders near Market Harborough	£26	£180
Extension Builders near Milton Keynes	£33	£226
Extension Builders near Corby	£27	£193
Extension Builders near Bedford	£38	£233
Extension Builders near South Bedfordshire	£38	£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.

Timber frame extension - £25,640

Garden office - £9,640

Granny annexe - £86,640

Flat roof extension - £21,640

Garage conversion - £15,640

Hip to gable loft conversion - £41,640

Bungalow loft conversion - £28,640

Dormer loft conversion - £41,640

Swimming pool - £80,640

Mansard loft conversion - £51,640

Concrete foundation - £5,890

Underpinning - £17,140

Two storey extension - £87,460

Basement conversion - £33,450

Side return extension - £37,450

Loft conversion - £30,375

Garage - £18,140

Single storey extension - £47,800

Outbuilding - £9,640

RSJ installation - £1,840

Kitchen extension - £41,640

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