Domestic Oil and Gas engineer serving Aberdeen city and shire specialising in appliance repair, service and installation.
A premium service for a reasonable price

Boiler Servicing & Repair

Think of a boiler service as a health check for your heating and hot water. Repairing small issues often prevents bigger problems later. Boiler repairs are quick, so you will be up and running again in no time.

Heating Installation

Ready for a new boiler? There are lots of makes and models out there. A free survey/quote will help to decide what is best for you. Peace of mind is important, so all boilers come with an extended warranty of 8-10 years.

Landlord Gas Safety Checks

CP12 certificates keep your property safe and appliances in good working order. Discounts are available for multiple appliances. Certificates are e-mailed on completion. You will be sent automatic reminders every year.

Are You Looking For Someone ?

“I have been using Gavin O'Neill Gas Service for about 3 years now, to look after the heating and gas appliances in my rental properties. I have found him to be very reliable, very tidy and at a reasonable cost. He arrives when he says will and attends breakdowns promptly. No hesitation to recommend to others”

Mr Ian Brown


"Many thanks for the great work. It's much appreciated. We've had a few people working on our old boiler over the years, and I'm very impressed with Gavin's attention to detail"

Rory Murray

Kittybrewster | Aberdeen

"Gavin was quick to reply my initial email re: servicing our gas fireplace and was able to promptly set a date with a reasonable quote. Obviously takes pride in his work - takes time to explain (in layman's terms) what exactly he's doing. Wouldn't hesitate to contact again!"

Erwan Elias

Milltimber | Aberdeen
Boilers aberdeen


A cost effective boiler installation is what it’s all about. An efficient boiler with controls to suit your needs will not only keep you toasty and warm but reduce your heating bills.

Using an accredited engineer gives you an extended warranty from between 8 to 10 years together with the assurance of top quality workmanship.