Service
Furnace Installation & Repair in Ottawa
Your furnace is the backbone of comfort through an Ottawa winter. We install high-efficiency Lennox systems sized to your home's real heat loss — not just the biggest unit on the truck — and we diagnose and repair existing furnaces quickly, honestly, and without pushing a replacement you don't need.

Signs you might need this
- Furnace is 15+ years old or needs frequent repairs
- Uneven heating between rooms or floors
- Rising energy bills without a change in usage
- Strange noises, short-cycling, or a pilot/ignition that won't stay lit
Planning furnace work in your Ottawa home
Furnace repair or replacement?
Tell us what has changed: rooms that stay cold, repeated breakdowns, unusual noise, or a system that will not start. Have the furnace make, model and approximate age ready if you can. An assessment helps you compare the repair needed with the scope and cost of replacement before deciding.
What affects installation cost?
A furnace quote depends on the equipment selected and the work needed in your home, including sizing, duct connections and venting. Ask for an itemized quote that explains equipment, installation work and any optional additions so you can compare the same scope across estimates.
Planning your installation
Our existing process starts with an in-home assessment and equipment options. When requesting a quote, tell us whether you have working heat, where the furnace is located and any access restrictions. Confirm the installation schedule and the expected interruption to heating with the team before booking.
Warranty and ongoing care
Manufacturer coverage and workmanship coverage apply to different parts of an installation. Ask for the terms that apply to your selected system, any registration requirements and the recommended maintenance schedule. Keep your quote, equipment details and service records together for future visits.
Furnace installation in Kanata and across Ottawa
Our mobile team serves Ottawa, Kanata, Nepean, Barrhaven and Orléans. Include your neighbourhood, existing furnace model and any heating problems in your request. We will discuss access, equipment options and availability for a visit to your home.
Explore our installation photos,request a personalized quote or see our Ottawa service areas before requesting a quote.
Comparing proposals? Use our Ottawa furnace installation quote checklist to review equipment, installation scope and warranty questions.
Planning your next step? Furnace Repair or Replacement: Questions for Ottawa Homeowners
What's included
Here's what you get with Thermoza.
Questions about furnaces
What should I prepare for a furnace installation assessment?
Have the model and approximate age of your current equipment ready, along with notes about uneven heating and recent repairs. Mention planned renovations, access restrictions and whether you currently have working heat.
Can I compare a new furnace with a heat pump option?
Yes. Ask to compare the proposed furnace with a compatible heat pump or hybrid arrangement. Review equipment, controls, installation scope and ongoing care together rather than comparing equipment alone.
How do I request a furnace installation quote in Kanata?
Use the contact form or call Thermoza with your address and equipment details. We provide service at the customer’s location and will confirm availability before arranging a visit.
Explore more
Other services homeowners pair with this.
Ready for better comfort?
Let's get your home comfortable again.
Tell us what's going on with your furnaces and we'll help you plan the next step — or call us directly.