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.
Trusted HVAC & Gas Line Service Provider in Ottawa, ON
Looking for reliable HVAC services in Ottawa, ON? We specialize in furnace repair, water heater installation and maintenance, and gas line services. Our certified technicians keep your home or business comfortable all year.
★★★★★5.0 on Google · Certified TechniciansNo Hidden FeesGet Your FREE Quote
Tell us what you need — a certified technician gets back to you fast.

We're Certified
Our licensed and certified technicians deliver safe, reliable, and code-compliant HVAC services.
Expert Team
With years of hands-on experience, our team provides professional heating, water heater, and gas line solutions.
Trusted & Local
Proudly serving Ottawa and surrounding areas with dependable service and a strong local reputation.
Best Services
From furnace repair to water heater installation, we guarantee quality workmanship and customer satisfaction.


Quality Heating, Water Heater & Gas Line Services
At KAD Mechanical & HVAC, we provide professional heating, water heater, and mechanical services in Ottawa and surrounding areas. Whether you need furnace installation, furnace repair, water heater service, or gas line connections, our team delivers dependable results.
With years of experience, certified technicians, and a customer-first approach, we’ve become a trusted name in Ottawa HVAC repair and installation.
Trusted & Local
Proudly serving Ottawa and surrounding areas with dependable service and a strong local reputation.
Best Services
From furnace repair to water heater installation, we guarantee quality workmanship and customer satisfaction.
How Can We Help You?
Choose your service
Before & After
Drag the slider to see the difference. These are real installations completed by KAD Mechanical & HVAC — not stock photos.

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

Power-Vent Water Heater Replacement
Aging power-vent tank replaced with a new high-efficiency power-vent gas water heater and new gas connection.

Closet Water Heater Upgrade
Tight utility-closet install: old unit out, new Bradford White water heater in — properly vented and code-compliant.
Fun Facts About KAD Mechanical & HVAC
Get a Free QuoteWhat Else We’re Doing
At KAD Mechanical & HVAC, we provide reliable gas line installations and expert HVAC diagnostics to keep your home or business safe and comfortable. Our certified technicians ensure every job is completed efficiently, accurately, and to the highest safety standards.

Gas Line for BBQ
Safe and convenient outdoor cooking solutions.

Gas Line for Pool Heater
Enjoy warm water all season long.

Gas Line for Stove
Secure, reliable connections for your kitchen appliances.

Gas Line for Fireplace
Cozy, code-compliant gas fireplace connections.

Diagnostics & Repairs
Fast and accurate troubleshooting for all HVAC systems.

Furnace Installation
High-efficiency furnaces installed safely and efficiently, as required per TSSA.
What Our Clients Say on Google
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 👌
Why Choose KAD Mechanical & HVAC ?
At KAD Mechanical & HVAC, we combine expertise, reliability, and local knowledge to keep your home or business comfortable year-round. Our certified technicians provide fast, professional service with transparent pricing and high-quality workmanship, ensuring every project meets our strict standards. Proudly serving Ottawa and surrounding areas, we’re your trusted choice for all heating, water heater, and gas line needs.
We're Certified
Our licensed and certified technicians deliver safe, reliable, and code-compliant HVAC services.
Expert Team
With years of hands-on experience, our team provides professional heating, water heater, and gas line solutions.
Upfront Pricing
Upfront pricing with no hidden fees — you approve the price before we start.
- Fast, reliable service
- Upfront pricing with no hidden fees
- High-quality parts and workmanship guaranteed
- Serving Ottawa, Kanata, Barrhaven Nepean, and Orleans
Heating & Gas Line FAQ
How often should I schedule HVAC maintenance in Ottawa ?
We recommend having your HVAC system serviced at least once a year ideally before winter for your furnace, with a check of your water heater at the same visit. Regular maintenance helps prevent breakdowns, improves efficiency, and increases the lifespan of your system.
What does a typical furnace tune-up include ?
A standard tune-up includes checking and cleaning the furnace burner, inspecting and replacing filters, testing safety controls, checking gas pressure, and verifying efficient airflow. We also test your thermostat, inspect venting, and ensure everything operates safely and reliably.
How much does a water heater replacement cost in Ottawa ?
Pricing depends on the size and type of your water heater (tank, power-vent or tankless), the venting and the gas or electrical work needed. Contact us for a custom quote for your home.
What are the common signs that my HVAC system needs repair ?
Some red flags we see often in Ottawa homes include unusual noises (like banging or rattling), rising energy bills, weak airflow, frequent cycling on and off, or your system not keeping your home at the right temperature. If you notice any of these, call us for an inspection.
How quickly can you come for a furnace or water heater repair in Ottawa ?
Call us at (613) 790-2675 or request a free quote online. We review your request right away and schedule a certified technician at a time that works for you, so your heat and hot water are back as soon as possible.
Ask Question

We’re ready to answer your questions about furnace, water heater, or gas line services. Fill out the form below, and one of our certified technicians will get back to you promptly.
Simple, Easy, and Transparent
What happens after you request a quote.
Request a Free Quote
Fill out the form or call us. It takes less than a minute.
We Review Your Request
Our team reviews your information and contacts you as soon as possible.
Custom Estimate
We prepare a custom estimate based on your specific issue or project.
Service Scheduled
If approved, we schedule the service at a time that works best for you.
Need Help Right Now ? ⚠️
If your furnace stopped working or your water heater is giving you problems, do not wait. Contact us immediately for urgent assistance. A technician will guide you and help you take the right steps.
Give us A Call(613) 790-2675Book a Service Now
Schedule your HVAC or gas line service today with KAD Mechanical & HVAC. Our certified technicians in Ottawa provide fast, reliable, and safe heating, water heater, and gas solutions for your home or business.

Furnace Tune-Up
Burner cleaning, filter check, safety controls, gas pressure, airflow, thermostat and venting.
Get Free Quote
Water Heater Maintenance
Inspection, testing of safety mechanisms, cleaning and prevention.
Get Free Quote
Gas Line Safety Check
Leak detection and safety inspection of your gas lines and connections.
Get Free Quote
Furnace Installation
High-efficiency furnaces installed safely, efficiently, as required per TSSA.
Get Free QuoteTips & Company News
How Much Does Furnace Replacement Cost in Ottawa? The Factors That Shape Your Price
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Continue ReadingFurnace Not Turning On? A Safe Troubleshooting Guide for Ottawa Homeowners
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Continue ReadingFurnace Blowing Cold Air? Causes and Fixes for Ottawa Homes
Vents pushing out cool air when you want heat? Here's why a furnace blows cold air, what you can safely check, and when an Ottawa homeowner should call a pro.
Continue ReadingProudly Serving Ottawa & Surrounding Areas
Our certified technicians cover the entire Ottawa region — including Stittsville, Gloucester, Manotick, Riverside South, Bells Corners, Westboro, Alta Vista and more. Not sure if we serve your street? Call us.







