Name: Extension Builder
Brand: HaMuch
SKU: extension-renovation
Rating: 4.8 (5 reviews)

Find affordable Gwent extension builders

Average Gwent extension builder hourly rate is £27. Prices range from the cheapest £16/hour and £120/day (A.Gaddarn Builders) to £30/hour and £240/day (Kingsley Developments).

Local extension builders near Gwent

"Timber frame extension - STEPHEN, CF3

"Attic is already converted, but looking to alter to make space more useable. Potentially consider dormer or dormer windows and fitted storage. - CHELSEA, NP18

"Loft conversion - NEWPORT

"RSJ installation - NEWPORT

"Remove current conservatory and build a small extension 4x4m - FEHMIDA, NP19

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 Gwent extension builders rates

Compare Gwent extension builders rates (excluding VAT or callout charges)
Location in UK	Hourly Rate	Daily Rate
Extension Builders near Newport	£37	£200
Extension Builders near Risca	£27	£185
Extension Builders near Cwmbran	£39	£190
Extension Builders near Caerphilly	£29	£181
Extension Builders near Cardiff	£30	£190
Extension Builders near Pontypool	£26	£183
Extension Builders near Church Village	£30	£188
Extension Builders near Penarth	£31	£189
Extension Builders near Pontypridd	£29	£184
Extension Builders near Clevedon	£29	£219

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 - £25,496

Garden office - £9,496

Granny annexe - £86,496

Flat roof extension - £21,496

Garage conversion - £15,496

Hip to gable loft conversion - £41,496

Bungalow loft conversion - £28,496

Dormer loft conversion - £41,496

Swimming pool - £80,496

Mansard loft conversion - £51,496

Concrete foundation - £5,746

Underpinning - £16,996

Two storey extension - £87,244

Basement conversion - £31,830

Side return extension - £35,830

Loft conversion - £29,025

Garage - £17,996

Single storey extension - £44,920

Outbuilding - £9,496

RSJ installation - £1,696

Kitchen extension - £41,496

More extensions & conversions cost guides...

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