Name: Extension Builder
Brand: HaMuch
SKU: extension-renovation
Rating: 4.73 (20 reviews)

Find affordable CF23 extension builders

Average CF23 extension builder hourly rate is £28. Prices range from the cheapest £20/hour and £140/day (SHARP BUILDING & MAINTENANCE) to £31.25/hour and £250/day (Jb maintenance and construction Ltd ).

Local extension builders near CF23

"Hello A kitchen extension is required. Full planning has been received and structural drawings/recommendations received. Would you be interested in providing a quote? Thank you Jackie - JACQUELINE, CF14

"Loft conversion - CF23

"Timber frame extension - STEPHEN, CF3

"Loft conversion - BECKY, CARDIFF

"Side return extension - CF24

"Porch with toilet and shower to be built onto front of house - CF14

"Build a garden office, Build a dormer loft conversion - KAUSER, CF23

"RSJ installation to open up kitchen and utility room. About 2m wide. - ASHLEIGH, CARDIFF

"RSJ installation - CARDIFF

"Single storey extension - CF24

"Side return extension - CRAIG, CF24

"Looking for a single storey side return to extend kitchen / living space. - SARAH, CF23

"Looking for a single storey side return to extend kitchen / living space. - CF23

"Double height side extension with single story rear to my existing semi-detached in Cardiff. Planning permission received. - GUY, CF14

"Double height side extension and single story rear - CF14

"Loft conversion with en suite - SAROOP, CARDIFF

"Kitchen extension - CARDIFF

"Side return extension - CF24

"Loft conversion - CARDIFF

"Loft conversion - CF24

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 CF23 extension builders rates

Compare CF23 extension builders rates (excluding VAT or callout charges)
Location in UK	Hourly Rate	Daily Rate
Extension Builders near Cardiff	£30	£190
Extension Builders near Caerphilly	£29	£181
Extension Builders near Penarth	£31	£189
Extension Builders near Risca	£27	£185
Extension Builders near Church Village	£30	£188
Extension Builders near Newport	£37	£200
Extension Builders near Pontypridd	£29	£184
Extension Builders near Barry	£29	£189
Extension Builders near Cwmbran	£39	£190
Extension Builders near Rhondda	£27	£183

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 - £25,544

Garden office - £9,544

Granny annexe - £86,544

Flat roof extension - £21,544

Garage conversion - £15,544

Hip to gable loft conversion - £41,544

Bungalow loft conversion - £28,544

Dormer loft conversion - £41,544

Swimming pool - £80,544

Mansard loft conversion - £51,544

Concrete foundation - £5,794

Underpinning - £17,044

Two storey extension - £87,316

Basement conversion - £32,370

Side return extension - £36,370

Loft conversion - £29,475

Garage - £18,044

Single storey extension - £45,880

Outbuilding - £9,544

RSJ installation - £1,744

Kitchen extension - £41,544

More extensions & conversions cost guides...

People in CF23 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