Find affordable extension builders near Cardiff
- Local extension builders Cardiff
- Job estimates from extension builders near you
- Compare Cardiff extension builders rates
| Low | Average | High |
|---|---|---|
| £15 | £30 | £108 |
| Average hourly rate from 78 extension builders in Cardiff ex VAT or callout | ||
Average Cardiff extension builder hourly rate is £34
Range from the cheapest, mostly independent, £27 per hour and £1 per day (Charles James Developments) to the dearest, normally the best, £108 per hour and £600 per day (Parc Helyg Trade Services).
Comparing hourly and daily rates of extension builders gives you an idea of who will be better value but the best way to compare costs is to get actual quotes.
What to do - Click 'Get quotes' and describe your job and we will send it to your local extension builders for FREE.
Local extension builders Cardiff
Elite Building Contractors South Wales
Cardiff
£30/hour
£195/day
Trusted and professional extension builder in Cardiff. Experienced in all work and keeping within budget and on quote. Elite Building Contractors South Wales have many happy customers in Cardiff, testimonials available.
"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
Hormuz Ltd
Cardiff
£30/hour
£200/day
Need to find an Extension Builder near you for all your work?
Hormuz Ltd provides a local, trusted service in and around Cardiff. Homeowners and landlords choose us for our excellent knowledge, experience and reliability plus reasonable call-out fees if applicable and no obligation quotes.
"Loft conversion"
CF23
RENCO CONSTRUCTION
£28/hour
£189/day
Relax... you have found a reliable extension builder in Cardiff. RENCO CONSTRUCTION is a friendly and reliable company based in Cardiff who consider no job as too big or too small. Qualified, professional extension builders with years of experience in the industry.
"Loft conversion"
BECKY, CARDIFF
AK Enterprise (GB) Limited
Cardiff
£45/hour
£150/day
Extension Builder in Cardiff, CF11. Working within a 20 mile radius.
AK Enterprise (GB) Limited is an established business in Cardiff. We come highly recommended and provide competitive quotes for your work.
"Side return extension"
CF24
MCp Home Improvements
£28/hour
£190/day
MCp Home Improvements is an established and experienced local extension builder in Cardiff. Please contact us for a free, no obligation quote and competitive rates. Covering a 20 mile radius.
"Porch with toilet and shower to be built onto front of house "
CF14
JA Building Maintenance
£29/hour
£191/day
Extension Builder in Cardiff, CF11 covering a 20 mile radius.
Experienced Extension Builder ready to quote for your work. JA Building Maintenance is the best Extension Builder in Cardiff. No obligation free quotes and many happy customers.
"Build a garden office, Build a dormer loft conversion"
KAUSER, CF23
TOR BUILD
£28/hour
£189/day
Extension Builder in Cardiff, CF24 covering a 20 mile radius.
Experienced Extension Builder ready to quote for your work. TOR BUILD is the best Extension Builder in Cardiff. No obligation free quotes and many happy customers.
"RSJ installation to open up kitchen and utility room. About 2m wide."
ASHLEIGH, CARDIFF
Parc Helyg Trade Services
cardiff
£108/hour
£600/day
Extension Builder in cardiff, CF24. Working within a 20 mile radius.
Areas Covered - South Wales
"RSJ installation"
CARDIFF
Charles James Developments
£27/hour
£182/day
Extension Builder in Cardiff, CF24 covering a 20 mile radius.
Experienced Extension Builder ready to quote for your work. Charles James Developments is the best Extension Builder in Cardiff. No obligation free quotes and many happy customers.
"Single storey extension"
CF24
Cardiff maintenance & flooring rubbish removal
Cardiff
£29/hour
£1/day
Extension Builder in Cardiff, CF24. Working within a 20 mile radius.
Cardiff carpet cleaning professional service for more than 20 years
Areas Covered - Cardiff Newport barry
"Looking for a single storey side return to extend kitchen / living space. "
SARAH, CF23
Young & Powell Property Maintenance
Cardiff
£29/hour
£190/day
Extension Builder in Cardiff, CF24.
Need an Extension Builder in Cardiff? Young & Powell Property Maintenance has been helping local clients (20 mile radius) with their jobs for many years. Get a quote today.
"Side return extension"
CRAIG, CF24
HECTOR CONSTRUCTION
£28/hour
£188/day
Need to find an Extension Builder near you for all your work?
HECTOR CONSTRUCTION provides a local, trusted service in and around Cardiff. Homeowners and landlords choose us for our excellent knowledge, experience and reliability plus reasonable call-out fees if applicable and no obligation quotes.
"Looking for a single storey side return to extend kitchen / living space. "
CF23
Studio369
Cardiff
£30/hour
£200/day
Extension Builder in Cardiff, CF10 covering a 20 mile radius.
Experienced Extension Builder ready to quote for your work. Studio369 is the best Extension Builder in Cardiff. No obligation free quotes and many happy customers.
"Double height side extension with single story rear to my existing semi-detached in Cardiff. Planning permission received."
GUY, CF14
Bailey Building & Roofing Limited
£30/hour
£199/day
Extension Builder in South Glamorgan, CF23. Working within a 20 mile radius.
Bailey Building & Roofing Ltd is a family business providing quality assured service and workmanship for Cardiff and surrounding areas since 1988.With a wealth of experience in building and roofing, we can ensure a professional, efficient ...
"Double height side extension and single story rear"
CF14
Heath Windows & Doors Ltd
£30/hour
£200/day
Need to find an Extension Builder near you for all your work?
Heath Windows & Doors Ltd provides a local, trusted service in and around Cardiff. Homeowners and landlords choose us for our excellent knowledge, experience and reliability plus reasonable call-out fees if applicable and no obligation quotes.
"Loft conversion with en suite "
SAROOP, CARDIFF
Parsons General Builders
£28/hour
£189/day
Parsons General Builders are extension builders in Cardiff who work within a 20 mile radius. Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of work in Cardiff and testimonials.
"Kitchen extension"
CARDIFF
TGH & Sons
8 greenlawns, cyncoed, cardiff, Cardiff
£29/hour
£182/day
Trusted and professional extension builder in Cardiff. Experienced in all work and keeping within budget and on quote. TGH & Sons have many happy customers in Cardiff, testimonials available.
"Side return extension"
CF24
Wayne Moore Construction Ltd
Unit E, Paper Mill Rd, Cardiff, Cardiff
£27/hour
£185/day
Extension Builder in Cardiff, CF11 covering a 20 mile radius.
Experienced Extension Builder ready to quote for your work. Wayne Moore Construction Ltd is the best Extension Builder in Cardiff. No obligation free quotes and many happy customers.
"Loft conversion"
CF24
K WALKER CONSTRUCTION
£28/hour
£188/day
K WALKER CONSTRUCTION are extension builders in Cardiff who work within a 20 mile radius. Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of work in Cardiff and testimonials.
"Loft conversion"
CARDIFF
River Gods Limited
£30/hour
£199/day
Extension Builder in S Glam, CF14. Working within a 20 mile radius.
River Gods is a respected name in bathroom and kitchen design throughout South Wales. Known for quality, artisan-ship and exceptional value for money, we have been trading for over 13 years. River Gods’ success has grown from the pleasu...
"We are looking at obtaining a quote for a loft conversion"
JULES.SKINNER, CARDIFF
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
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 Cardiff extension builders rates
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Extension Builders near Cardiff | £30 | £190 |
| Extension Builders near Penarth | £31 | £189 |
| Extension Builders near Caerphilly | £29 | £181 |
| Extension Builders near Barry | £29 | £189 |
| Extension Builders near Church Village | £30 | £188 |
| Extension Builders near Risca | £27 | £185 |
| Extension Builders near Newport | £37 | £200 |
| Extension Builders near Pontypridd | £29 | £184 |
| Extension Builders near Cwmbran | £39 | £190 |
| Extension Builders near Weston-super-Mare | £29 | £216 |
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 - £25,504
Garden office - £9,504
Granny annexe - £86,504
Flat roof extension - £21,504
Garage conversion - £15,504
Hip to gable loft conversion - £41,504
Bungalow loft conversion - £28,504
Dormer loft conversion - £41,504
Swimming pool - £80,504
Mansard loft conversion - £51,504
Concrete foundation - £5,754
Underpinning - £17,004
Two storey extension - £87,256
Basement conversion - £31,920
Side return extension - £35,920
Loft conversion - £29,100
Garage - £18,004
Single storey extension - £45,080
Outbuilding - £9,504
RSJ installation - £1,704
Kitchen extension - £41,504
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