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

Do you live in Glasgow, Lanarkshire, Renfrewshire or Ayrshire areas?

Get a new boiler quote in under 60 seconds

hurlfordlad
Our heating system developed a severe blockage over the summer. It was only discovered when I switched it back on when it got cooler. No heat to any of the downstairs radiators. Two engineers spent four hours locating and removing the blockage. The two guys worked tirelessly. Some new pipework and an extra filter were added. On completion, they explained exactly what they had done and gave us good advice on how to use the thermostatic radiator valves to give maximum efficiency. The system is now working better than I can remember. Radiators heat up almost immediately. I cannot praise the engineers highly enough for their professionalism. Highly recommend.
Tom,
Troon
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Jac P
We have used O’Neils for a number of years now for our boiler care, always been fantastic!
We recently had our Annual service again, arrived exactly when they said and serviced the boiler promptly. Very pleased, thank you.
read more
Michael McMillan
Phoned to book our annual gas boiler service on the Thursday service arranged for the following day.
Gas Engineer turned up when you said they would, he was well presented and mannerly, carried out his work professionaly and left leaving no mess whatsoever.
Then a few days later I received a call from their staff to check everything went okay.
Would highly recommend this company.
read more
BozzaRedtop
Had my yearly service last week from O’Neill’s and couldn’t be happier. The engineer came within the specified time, completed his work promptly and efficiently. I was able to carry on what I was doing without even knowing he was there. Everyone from the staff on the other side of the phone through to the engineers are friendly and experienced. Highly recommended!!
read more

Your Boiler Replacement in Just 3 Simple Steps

Get a fixed quote in under 60 seconds — just answer a few quick questions to get started below:

Get a Quote in 60 Seconds

Provide a few quick details to receive a quote for your new boiler. No pressure, no obligation—just fast and easy.

Free Survey

One of our expert engineers will
visit or carry out a video call to confirm the new boiler replacement quote.

We Replace Your Boiler

Your new boiler installation will be carried out by our Gas Safe engineers./p>

The O’Neil Boiler Company – the new affiliated company of the trusted O’Neil brand.

Combining years of expertise and industry know-how, with outstanding customer service, The O’Neil Boiler Company use all this experience, workmanship, connections & customer care to make it even easier to purchase a boiler from the trust O’Neil brand.  Reducing your cost without compromising on quality and safety.

All our boilers are of the highest quality and are handpicked to meet the individual needs of our customers. All surveys and quotes are completed by a fully qualified gas engineer and not by a salesperson, guaranteeing that you are matched with the boiler you want and need and not the one a salesperson wants to sell you!

We also offer flexible payment plans, ensuring that if the worse happens, we can help you spread the cost of a new boiler by splitting the payment into more manageable instalments with no extra charge.

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Why choose a local boiler installation company?

For reliable boiler installation in Glasgow, Lanarkshire, Renfrewshire, and Ayrshire, trust our team of 20 Gas Safe engineers and Select-registered electricians. We guarantee safe, professional service, 24/7 emergency call-outs, and a 4.5-star Google rating. Plus, for every boiler installed, we plant three trees to support a greener future. Choose local for quality, peace of mind, and sustainability.

We use local, directly employed people

Kit comes with boiler, flue, filter, chemicals, carbon monoxide alarm, & all labour included

Warranty between
2 & 10 years
A free annual service for the first year worth £78

Our 24/7 emergency service offers fast, reliable boiler support anytime

For every boiler ordered with us, we will plant 3 trees through our partner Ecologi
We help people to reduce the cost of their gas bills every day through replacing old boilers with new ones
Independent verified reviews from Google – 4.5 out of 5 for over 200 reviews

Our best selling boiler

Baxi 630kw Combi Boiler

A compact powerful, reliable boiler that is built using top quality brass components, one of the best boilers on the market for its price.

  • Fitted By an Officially accredited Approved Installer
  •  7 Year Award winning Warranty, including all parts and labour
  • Made right here in the UK since 1866
  • ErP A Rated (93% Efficiency)
  • Can be controlled through smart controls through an app on your phone
  • Impressive hot water Flow Rate of 12.2 l/min
  • Future proofed Certified to work with 20% hydrogen
  • Finance Available

Installed from £2250 Inc VAT

Confirm price with a survey

Our Reviews

Join the ever growing group of happy customers…

hurlfordlad
Our heating system developed a severe blockage over the summer. It was only discovered when I switched it back on when it got cooler. No heat to any of the downstairs radiators. Two engineers spent four hours locating and removing the blockage. The two guys worked tirelessly. Some new pipework and an extra filter were added. On completion, they explained exactly what they had done and gave us good advice on how to use the thermostatic radiator valves to give maximum efficiency. The system is now working better than I can remember. Radiators heat up almost immediately. I cannot praise the engineers highly enough for their professionalism. Highly recommend.
Tom,
Troon
read more
Jac P
We have used O’Neils for a number of years now for our boiler care, always been fantastic!
We recently had our Annual service again, arrived exactly when they said and serviced the boiler promptly. Very pleased, thank you.
read more
Michael McMillan
Phoned to book our annual gas boiler service on the Thursday service arranged for the following day.
Gas Engineer turned up when you said they would, he was well presented and mannerly, carried out his work professionaly and left leaving no mess whatsoever.
Then a few days later I received a call from their staff to check everything went okay.
Would highly recommend this company.
read more
BozzaRedtop
Had my yearly service last week from O’Neill’s and couldn’t be happier. The engineer came within the specified time, completed his work promptly and efficiently. I was able to carry on what I was doing without even knowing he was there. Everyone from the staff on the other side of the phone through to the engineers are friendly and experienced. Highly recommended!!
read more

Trust, speed and piece of mind O’Neil Boiler Company, installing gas boilers for 30 years…

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