
Furnace & Water Heater Maintenance
Expert maintenance in Ottawa to boost efficiency and prevent breakdowns.
View DetailsCertified heating, water heater and gas line specialists serving Ottawa, Kanata, Nepean, Barrhaven and Orleans.



At KAD Mechanical & HVAC, we specialize in keeping homes and businesses across Ottawa, Kanata, Nepean, Barrhaven and Orleans comfortable all year round. With certified technicians, years of hands-on experience, and a customer-first approach, we provide reliable solutions for heating, water heaters, and gas line services.
Whether you need a quick repair, a full installation, or regular maintenance, our team ensures every job is done efficiently, safely, and to the highest standards.
Our licensed professionals deliver safe, reliable, and code-compliant HVAC services.
We’re proud to serve Ottawa and surrounding areas, building a strong local reputation for reliability and quality.
With years of hands-on experience, our team provides expert solutions tailored to your home or business.
From furnace repair to water heater installation, we use premium parts and guarantee workmanship you can trust.
Drag the slider to see the difference. These are real installations completed by KAD Mechanical & HVAC — not stock photos.

Old gas tank removed and replaced with a new Rheem Performance electric water heater, with clean new piping.

Aging power-vent tank replaced with a new high-efficiency power-vent gas water heater and new gas connection.

Tight utility-closet install: old unit out, new Bradford White water heater in — properly vented and code-compliant.

Expert maintenance in Ottawa to boost efficiency and prevent breakdowns.
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Professional installation of high-efficiency systems in Ottawa.
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Secure, code-compliant BBQ gas line installation in Ottawa.
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KAD Mechanical & HVAC is an insured mechanical and HVAC company with a solid and qualified team. They have supported our project from start to finish. From initial contact, they outline the scope of work, its requirements and complete the work as per codes, regulations and industry best standards. From hot-water tanks, furnaces, faucets and shower heads to gas lines for barbecues and other appliances — KAD Mechanical & HVAC delivers. Highly reliable and delivers with satisfaction every time.
I am very satisfied with the work done. The installation of the water tank and toilets was impeccable, professional, and carried out with great care. The team was punctual, friendly, and answered all my questions. Everything is working perfectly, and the work area was left spotless. I wholeheartedly recommend this company for the quality of their service and their excellent customer care. A well-deserved five stars!
I’m really happy for this service. Mukaley is very professional installing my gas line.
Professional and very knowledgeable. 10/10 recommend 👌
Certified technicians, upfront pricing, no hidden fees. Prefer to talk? Call (613) 790-2675.