Gas Furnace Installation, Repair & Replacement in Ottawa & Toronto
Climate Works specializes in keeping homes warm with professional gas furnace installation, fast repairs, and honest replacement advice.
Our licensed technicians provide reliable solutions designed for harsh Canadian winters — with upfront pricing and 24/7 emergency support.
Specialists in Gas Furnace Repair, Replacement & Installation
Climate Works is a trusted local expert in gas furnace systems, providing professional installation, accurate repairs, and dependable service backed by 24/7 support. Our licensed technicians ensure every system is properly sized and installed to deliver safe, efficient, and long-lasting performance.
Climate Works Explains: Single-Stage Furnaces
In this episode of our Climate Works video series, one of our technicians explains the basics of single-stage furnace systems, how they differ from two-stage and modulating models, and when this type of equipment is the right fit for your home.
Expert Furnace Services for Your Home
From installations to repairs and long-term care, we offer dependable gas furnace solutions to keep your home warm and efficient throughout Ottawa and Toronto.
Installation
Repairs
Replacements
Maintenance
Climate Works Guide to Gas Furnace Types, Efficiency & Lifespan
Standard Gas Furnaces are the most budget-friendly option, typically 80–90% AFUE. They are reliable and easy to service but use more fuel than newer high-efficiency models.
High-Efficiency Furnaces operate at 96–98% AFUE with multi-stage heating and variable-speed fans, providing steadier comfort, quieter operation, and lower energy bills.
Condensing Furnaces capture additional heat from exhaust gases, making them the most efficient choice for cold climates, though they require specialized venting.
Electric Furnaces convert nearly all electricity to heat and need little maintenance, making them ideal where gas isn’t available, with costs tied to electricity rates.
Installation Factors like home size, duct condition, and venting needs affect both price and performance, while smart controls can improve efficiency.
Expected Lifespan is generally 15–20 years for gas systems, often longer for high-efficiency units, and potentially over 20 years for electric models.
Climate Works 24/7 Furnace Emergency Services
Climate Works provides fast, dependable 24/7 emergency furnace service across Ottawa and Toronto. When your heat stops working on a freezing night, you need more than a voicemail — you need a qualified technician who can diagnose the problem quickly and restore safe, reliable heating.
Our team responds day or night to handle breakdowns, ignition failures, gas issues, and no-heat situations with fully equipped service vehicles and upfront pricing.
24/7 Emergency Furnace Service
Climate Works offers round-the-clock emergency furnace repair in Ottawa and Toronto. If your system fails during a cold snap, we’ll dispatch a certified technician to restore heat and safety to your home — day or night, weekend or holiday. Don’t wait in the cold — call us anytime.
Common Furnace Issues & When to Call for Repair
Repair vs. Replace: What’s the Smart Choice?
Most furnaces last 15–20 years. If your unit is under 10 years old and the repair costs less than 1/3 the price of a new one, it’s often worth fixing. But if you’ve already made multiple service calls or your system is aging, a replacement may be the more cost-effective long-term solution. We’ll help you weigh your options with clear, honest advice.
Red Tags, Safety & Legal Requirements in Ontario
Only licensed professionals can perform gas furnace repairs in Ontario. If your furnace receives a red warning tag, that means it poses a safety risk:
Type A: Immediate hazard – gas shut off required
Type B: Must be fixed by a set date or gas will be shut off
If you’ve received a red tag, contact us right away. We can repair the issue quickly or provide a second opinion — all with full TSSA certification.
Heat Pump or Furnace: Choosing the Right System for Ontario Homes
Ontario homeowners can heat their homes with either a traditional gas furnace or a modern heat pump, and each option has clear advantages. Furnaces create heat by burning natural gas and are known for powerful, reliable performance in extreme cold. Heat pumps move heat instead of generating it, providing both heating in winter and cooling in summer from one system, with much higher energy efficiency.
Key Differences to Consider
Heat pumps can operate at 300–500% efficiency and reduce electricity use
Furnaces deliver strong heat output during the coldest Ontario temperatures
Heat pumps provide year-round heating and air conditioning in one unit
Gas furnaces usually cost less to install but have higher fuel expenses
Heat pumps may qualify for Ontario rebates and lower carbon emissions
The right choice depends on your home’s insulation, existing ductwork, and comfort goals. Many Ontario households benefit from a hybrid setup that combines a heat pump with a furnace for backup during extreme cold, offering the efficiency of electric heating with the reliability of gas when it’s needed most.
Stay up-to-date with our expert heating tips
Our expert tips help you maximize efficiency, reduce energy costs, and maintain a comfortable home year-round. Explore our articles for the best HVAC solutions and keep your systems running smoothly.
The Ultimate HVAC Winter Checklist for Ontario Homes
Stay Warm, Safe, and Efficient in 2025 Winter in Ontario is not for the unprepared. Between freezing temperatures, heavy snowfall, and long heating seasons, your home and HVAC system face months of sustained demand. Without proper preparation, small oversights can
How to Set Your Thermostat This Winter to Save
How to Set Your Thermostat This Winter in Ontario Ontario winters are long, unpredictable, and expensive when it comes to home heating. One of the simplest ways to reduce your energy bills—without sacrificing comfort—is by setting your thermostat strategically throughout
What Should I Do If My Furnace Stops Working?
Troubleshooting a Furnace That Suddenly Stops Working Few things feel worse than realizing the furnace has stopped working on a freezing Ottawa night. Before panic sets in, it helps to understand that many furnace failures are caused by simple issues
Furnace vs. Heat Pump: Which Is Better for Ottawa Winters?
Heat Pump vs. Furnace: Which Is Best for Your Home in 2025? Choosing the right heating system is one of the most important decisions for homeowners in Ottawa and across Ontario — especially with rising energy costs, evolving climate goals,
Is Your Furnace Ready for Winter? 7 Signs It’s Time for a Tune-Up Before the First Snowfall
Signs Your Furnace Needs Repair Before Ottawa’s Winter Arrives Ottawa winters are no joke — with sub-zero temperatures, heavy snowfall, and weeks of deep freezes, your home’s heating system needs to be in top shape long before the first snowflake
4 Furnace Smells to Watch for When Turning on Your Heat
4 Strange Smells You Might Notice When Turning on Your Heat — And What They Mean When the cold Ontario winter arrives, turning on your heating system is essential for keeping your home warm and comfortable. But if you’ve noticed
Carrier Quality, Climate Works Expertise
Infinity® 98 Gas Furnace With Greenspeed® Intelligence
ENERGY STAR® certified. Our highest efficiency and most advanced furnace with up to 98.5% AFUE for premium energy savings with excellent humidity control and premium comfort
