Get your boiler upgraded by the experts.

O'Mahony Heating & Plumbing are experts in all things heating. We are based in cork with over 18 years experience. We cover all aspects of heating, including oil and gas boiler upgrades, smart heating controls and powerflushing.

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Trusted by hundreds of customers

What services do you provide?

Boiler replacements and upgrades

We supply and install regular, system and combi boilers to suit all homes and budgets. All boilers we install are high efficiency condensing boilers.

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Smart heating controls

Save up to €120 per year on your heating bills with The award-winning Hive Thermostat. Control your heating from anywhere via your smartphone.

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Heating system powerflushing

Powerflushing is a popular method of cleaning and maintaining a central heating system. Great for older heating systems.

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Get an estimate in seconds

How does it work?


Get an instant estimate

Fill out our quick online form, telling us a bit about your home. We will recommend the best boiler for you.


Home assessment

We will contact you to discuss your estimate and arrange a free, no obligation home assessment on a day that suits you.


Enjoy your warmer home

We will install your new boiler on a day that suits you and you will be right on the way to saving hundres on your energy bills.

Get Your Estimate
See what our customers say


Very helpful and responsive from first call to full installation and aftercare. Would highly recommend if anyone needs any plumbing issues sorted.

Derek Moloney

Boiler Installation

O’Mahony plumbers power flushed our heating system when the radiators were not heating evenly or at all. The system is now vastly improved. The crew were very punctual, helpful and kept us informed of what was involved in the work. We found the price to be very competitive and would gladly recommend them to anyone looking for reliable plumbers.

Victoria Quigley


Delighted with the job these lads done .Absolutely brilliant. Would highly recommend them .Nothing was a problem to them and they were so neat and tidy .First class work.

Antoinette Mullane

Boiler Installation

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O'Mahony Heating & Plumbing

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We are the experts in heating system installation.


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