As an experienced and reliable plumber we work throughout Coleraine, Portrush, Portstewart, Castlerock, Ballymoney, Bushmills and surrounding areas. William McKee Plumbing & Heating provide expert plumbing, heating, and oil boiler services for homes across Coleraine and the surrounding areas.
With over 30 years of experience, our OFTEC registered engineers specialise in oil boiler installation, servicing, and repairs, as well as full bathroom renovations, power flushing, and all aspects of plumbing and heating — delivered with professionalism, care, and attention to detail.
Customer Rating
We’re proud of our reputation for honest advice, reliable workmanship, and high-quality service throughout Coleraine.
Years of Experience
With more than three decades in the trade, we’ve built lasting relationships with homeowners across Coleraine who trust us for fast, dependable service.



About Our Company
At William McKee Plumbing & Heating, we take pride in combining local knowledge with professional expertise. From fixing leaks and repairing heating systems to installing efficient oil boilers and creating beautiful bathrooms, we provide a complete service from start to finish.
We’re fully OFTEC registered, insured, and committed to maintaining the highest standards of safety and quality in everything we do. Our bathroom renovation service includes all trades — plumbing, plastering, tiling, electrics, and a full clean-up after completion — giving you a seamless, stress-free experience.
We also carry out plumbing installations for new builds and home extensions, working closely with builders, developers, and homeowners to ensure everything is fitted safely, efficiently, and to the highest standard.
We proudly serve the entire North Coast region including Coleraine, Portrush, Portstewart, Castlerock, Ballymoney, Bushmills, and all nearby areas.
OUR SERVICES
Whether you need a new oil boiler, a heating system upgrade, or a bathroom transformation, we offer high-quality services at competitive prices.
Our OFTEC-registered engineers install, service, and repair oil boilers using trusted parts and equipment. From boiler replacements to annual servicing, we keep your home heating running safely and efficiently.

We offer complete central heating solutions including radiator installations, power flushing, heating repairs, and underfloor heating systems — all designed to improve comfort and energy efficiency.

Transform your home with a full bathroom renovation handled by our in-house team. We manage plumbing, tiling, plastering, electrics, and final cleaning for a professional finish from start to end.

From burst pipes and dripping taps to blocked drains, kitchen plumbing, and water systems, our plumbers provide a fast, tidy, and reliable service throughout the North Coast.

WHY CHOOSE US
Our business is built on reputation, reliability, and trust. As an established, family-run company, we believe in delivering honest service, clear communication, and the highest standard of workmanship every time. Every job is carried out by experienced, OFTEC-registered engineers who care about keeping your home safe, warm, and comfortable.
Serving Coleraine for over 30 years
Fully certified in oil boiler installation and servicing
Every project completed to the highest standards
From small repairs to full bathroom renovations

FREQUENTLY ASKED QUESTIONS
We know that plumbing and heating issues can be stressful, so we’ve answered some of the most common questions below. Whether you need oil boiler servicing, bathroom renovations, or emergency plumbing, our team is here with clear, professional advice.
Yes — we serve the full North Coast, including Portrush, Portstewart, Castlerock, Ballymoney, Bushmills, and nearby areas.
Absolutely. We’re OFTEC registered and carry out oil boiler installations, repairs, and servicing for homeowners throughout Coleraine.
Yes, we provide a complete all-trades service — plumbing, tiling, plastering, electrics, and a full clean-up after completion.
Yes, we operate a 24/7 emergency service for urgent plumbing or heating issues such as leaks, burst pipes, and boiler breakdowns.
OUR WORK PROCESS
We make switching to solar simple and stress-free. From careful planning to
expert installation and everyday household use, our process ensures you get
the most out of clean, renewable energy.

Our experts assess your home’s energy needs and roof layout to create a custom solar design that maximizes efficiency and savings.

Our certified team installs your solar system using high-quality equipment and proven methods — ensuring safety, reliability, and top performance.

Enjoy the benefits of clean, renewable energy. Lower your bills, reduce your carbon footprint, and gain energy independence for years to come.
