
GAS AND OIL BOILER INSTALLATIONS – QUALITY WORKMANSHIP, DUNGANNON
Gas Safe and oil engineers. Expert system advice. Ideal for new builds.
RELIABLE SERVICE
SATISFACTION GUARANTEED
GAS SAFE REGISTERED
PRECISION BOILER INSTALLATIONS FOR MODERN HOMES AND BUSINESSES
At E O'Neill Plumbing & Heating, we specialise in installing energy-efficient gas and oil boilers designed to meet the demands of both domestic and commercial properties. From compact system boilers to larger plant room setups, every installation is carried out with accuracy, safety, and long-term performance. Commercial plumbing and heating solutions are integrated seamlessly, ensuring your heating system operates reliably while reducing energy consumption and running costs.

TAILORED SYSTEM DESIGN AND EXPERT COMPONENT FITTING
We take a bespoke approach to every project, beginning with a detailed assessment of your property's heating requirements. From selecting the correct boiler type to planning pipework and flue layout, we ensure every element is suited to the layout and demand of the space. This personalised design process guarantees optimal efficiency, ease of maintenance and full compliance with industry standards.
SEAMLESS COMMISSIONING FOR PEAK EFFICIENCY AND PERFORMANCE
Once installation is complete, we thoroughly commission the heating system to ensure it operates at peak performance. This includes testing controls, fine-tuning boiler output, and checking safety mechanisms. We provide every part of the system, from thermostats to circulation pumps, that work harmoniously to deliver consistent warmth and efficiency. Air source and heat pumps can also be incorporated into hybrid systems for improved sustainability.


CERTIFIED COMPLETION AND LONG-TERM PEACE OF MIND
E O'Neill Plumbing & Heating provides full certification and documentation upon installation completion, reassuring you that your system meets regulatory and manufacturer requirements. Our service doesn't end at installation — we remain available to offer guidance, maintenance support and system upgrades where needed. Whether for new builds or commercial facilities, we aim to deliver lasting efficiency, comfort and reliability in every project.