Local Newtownabbey extension builders
Ballantine building solutions
£24/hour
£162/day
Ballantine building solutions is an established business in Newtownabbey. We come highly recommended and provide competitive quotes for your work....
"Attic conversion 2 bedroom" - BT36
DGA
£23/hour
£158/day
Trusted and professional extension builder in Newtownabbey. Experienced in all work and keeping within budget and on quote. DGA have many happy cu...
"Dormer loft conversion" - NEWTOWNABBEY
Designco Ltd
£25/hour
£173/day
Designco Ltd is an established business in Newtownabbey. We come highly recommended and provide competitive quotes for your work.
"Attic conversion on semi detached house. 9ft wide, 16ft long" - BT36
LM Design & Build
£25/hour
£172/day
Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of work in Newtown...
"Extend to rear a 2 bed bungalow" - CHRISTINA, BT36
SM Plumbing & Heating
£25/hour
£171/day
Relax... you have found a reliable extension builder in Newtownabbey. SM Plumbing & Heating is a friendly and reliable company based in Newtownabbe...
"Replaster part of the front of my house" - BT36
C.H Property Services
£24/hour
£165/day
C.H Property Services is a trusted extension builder serving customers in Newtownabbey and the surrounding area. Contact us to today to get a compe...
MIRKOW
£22/hour
£151/day
Need an Extension Builder in Newtownabbey? MIRKOW has been helping local clients (20 mile radius) with their jobs for many years. Get a quote toda...
Firenstack Solutions
£25/hour
£169/day
Need to find an Extension Builder near you for all your work?
Firenstack Solutions provides a local, trusted service in and around Newtow...
Extended living by Gilbert-Ash
£21/hour
£147/day
Trusted and professional extension builder in Newtownabbey. Experienced in all work and keeping within budget and on quote. Extended living by Gil...
McEvoy Building & Joinery
£23/hour
£160/day
Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of work in Newtown...
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 Newtownabbey extension builders rates
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Extension Builders near Greenisland | £20 | £134 |
| Extension Builders near Holywood | £20 | £138 |
| Extension Builders near Belfast | £20 | £137 |
| Extension Builders near Carrickfergus | £21 | £145 |
| Extension Builders near Ballyclare | £17 | £110 |
| Extension Builders near Carryduff | £20 | £136 |
| Extension Builders near Bangor | £20 | £150 |
| Extension Builders near Bangor | £20 | £150 |
| Extension Builders near Comber | £20 | £142 |
| Extension Builders near Ballygowan | £20 | £150 |
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 - £25,304

Garden office - £9,304

Granny annexe - £86,304

Build a flat roof extension - £21,304

Convert a Garage - £15,304

Hip to gable loft conversion - £41,304

Convert a bungalow loft - £28,304

Build a dormer loft conversion - £41,304

Build a swimming pool - £80,304

Build a Mansard loft conversion - £51,304

Concrete foundations - £5,554

Underpin a building - £16,804

Two storey extension - £86,956

Convert a basement - £29,670

Side return extension - £33,670

Loft conversion - £27,225

Garage - £17,804

Single storey extension - £41,080

Outbuilding - £9,304

Install an RSJ - £1,504

Build a kitchen extension - £41,304
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