Ayrshire: 01292619799 | East Kilbride / Paisley: 01355 203 333
O'Neil Boiler Company Logo
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24/7 Helplines:

Office/Sales: Open Mon-Fri, 8am-5pm

Head Office Ayr: 01292 619799
Kilmarnock: 01563 840059
East Kilbride / Paisley: 01355 203 333
Ayrshire: 01292 619 799
East Kilbride / Paisley: 01355 203 333
O'Neil Boiler Company Logo

Gas Boiler Service and Repair

Book a service or repair online, or request a callback. It is easy, free, and takes less than 60 seconds.

Trust, speed and peace of mind, O’Neil Boiler Company, servicing and repairing gas boilers for 30 years

Gas Boiler Service and Repair

A boiler that is not serviced regularly can lose efficiency, wear out faster and become unsafe. An annual service by a Gas Safe registered engineer checks the parts that matter most, so faults are caught early and your boiler keeps running reliably through the winter.

O’Neil Gas service and repair boilers every week across Ayrshire, South Lanarkshire, Renfrewshire and Glasgow. Our engineers are all directly employed, with no subcontractors, so the person who services your boiler is part of the team that sets our standards.

Every service includes a full safety and performance check, a carbon monoxide test, and a written record of the work. If a repair is needed, our engineer explains the fault and gives you a clear quote before any parts are fitted. Where a part has to be ordered, we arrange the follow-up visit for you.

We have excellent reviews, 4.5 out of 5 on Google Reviews and 9.88 out of 10 on Checkatrade. You will always have someone to speak to 24/7, 365 days a year, and if a repair is no longer worth it, our Gas Safe engineers will tell you honestly what a replacement would involve.

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Get A Quote

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Arrange A Call Back

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What is included in an annual service?

  • A full safety and performance check
  • Burner, heat exchanger and condensate pipe inspection
  • Carbon monoxide test and flue check
  • Gas pressure and operating readings
  • Controls and safety device testing
  • Written service record and advice
  • Repairs carried out by Gas Safe registered engineers
  • A clear quote before any parts are fitted
  • Parts ordered and a follow-up visit arranged where needed
  • A written record of the repair
  • Advice on keeping your system running well

Book your annual service to keep your warranty valid and your boiler running safely and efficiently. 

Kanda Finance Available

We also offer flexible finance options. Whether it's an easy payment plan, or buy now and pay later, we offer a range of affordable payment options to suit your budget.

Kanda finance available
spread the cost

Benefits of an annual service

  • Lower energy bills: a clean, well-tuned boiler uses less fuel.
  • Fewer breakdowns: problems are spotted before they leave you without heating.
  • Longer boiler life: regular servicing helps protect your investment.
  • Safety checks: carbon monoxide and flue checks give peace of mind.
  • Warranty protection: many manufacturers require an annual service.
  • Local engineers: our team is based in the area, so visits are quicker to arrange.
  • Honest advice: we will tell you when a repair makes sense and when replacement is the better choice.

View Our Customer Testimonial Videos

Official Accredited Installer – Baxi & Worcester Bosch Boilers

Head Office Ayr: 01292 619 799
Kilmarnock: 01563 840059
East Kilbride / Paisley: 01355 203 333