Serving Ottawa and neighboring towns with reliable HVAC installation, repair, and maintenance.
Request ServiceEfficient heating and cooling with heat pump installation and maintenance.
Professional installation, maintenance, and repair to keep your home cool and comfortable.
Installation and servicing of residential and commercial boilers for reliable heat.
Installation and maintenance to ensure a consistent hot water supply.
Energy-efficient tankless water heaters for endless hot water on demand.
Heat and energy recovery ventilation systems for better air quality and efficiency.
Installation, repair, and maintenance for all major furnace brands.
Whole-home humidifiers and indoor air quality solutions for comfort and health.
Professional dryer vent cleaning to improve efficiency and reduce fire hazards.
Service, repair, and maintenance for commercial kitchen appliances.
Maintenance and repair for commercial washers and dryers in laundry facilities.
A trusted second opinion for challenging HVAC problems. Specializing in diagnosing complex issues and uncovering what others may have missed, giving you a clear and accurate understanding of the real problem before more money is spent.
We provide detailed plans and technical drawings while working closely with your contracting team to ensure seamless, efficient implementation from concept to completion.
Cardinal HVAC is a small, family-run company proudly serving Ottawa and the surrounding communities. We treat every home as if it were our own and every customer like a neighbour. With certified technicians and strong hands-on experience, we're committed to honest work, reliable service, and solutions you can trust.
We also believe in doing our part for the future. By helping homeowners understand their options through real education and meaningful conversations about their project goals, we guide them toward energy-efficient choices that improve comfort, increase reliability, and lower energy costs—all without compromising on quality.
Learn MoreReady to schedule service or have a question? We're here to help.
