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★★★★★
Val was fantastic to deal with. Our furnace started making a terrible screeching noise, and they had a technician out to diagnose and fix it the very same day.
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HVAC Furnace Repair & Installation in Markham
North Wind HVAC keeps Markham homes warm through the winter with same-day furnace repair and new furnace installation, 7 days a week. Every new installation, from heating systems to AC and heat pumps, starts with a free at-home quote.
★★★★★ 5-Star Google Rated
TSSA G2 Licensed
Same-Day Service, 7 Days a Week
HVAC Service in Markham From a Family-Owned Local Team
HVAC service in Markham covers furnace repair, AC repair, furnace and AC installation, and heat pump work, along with humidifiers, air quality equipment, thermostats and water heaters. Markham sits in Plant Hardiness Zone 6a, where winter lows can reach -23.3°C and summers bring heat and humidity, so a home needs dependable heating and cooling. North Wind HVAC is a family-owned team of fully licensed technicians, and the company books same-day appointments seven days a week.
Furnace Repair in Markham
North Wind HVAC provides furnace repair in Markham, including Unionville, for furnaces that produce no heat or leave parts of the house colder than others. The usual causes are a thermostat or wiring fault, a tripped limit switch, a failed control board, or a blocked condensate drain or vent.
A limit switch trips when the unit overheats, and a blocked condensate line or vent can lock the furnace out for safety, so clearing the cause matters more than resetting the system. Our technicians test each possibility in turn, explain the fault and provide an estimate before proceeding.
After the repair, we run the furnace through a full cycle to confirm it heats evenly and shuts off properly. Some faults are resolved during the first visit, while a failed component that has to be ordered calls for a follow-up visit.
AC Repair in Markham
An air conditioner that runs continuously without reaching the thermostat setting is not necessarily too small for the home. In Markham, North Wind HVAC investigates whether reduced cooling comes from restricted airflow, dirty coils, a malfunctioning fan, or a refrigerant problem.
Our technicians inspect the thermostat, indoor airflow, outdoor condenser, and electrical components. We measure temperature differences, check compressor and fan operation, and assess refrigerant conditions when necessary. The diagnosis and repair estimate are explained before proceeding.
Repairs may include replacing a capacitor, contactor, or fan motor, cleaning an obstructed coil, or correcting a refrigerant leak. Once completed, we check that the system maintains steady cooling without excessive cycling.
Furnace and AC Installation in Markham
A new heating or cooling system should work with the home’s existing infrastructure, not simply fit the space left by the old equipment. North Wind HVAC installs furnaces and air conditioners in Markham, accounting for capacity, ductwork compatibility, ventilation, and system performance.
Our technicians inspect the current installation and assess whether the ductwork can support the airflow the replacement equipment needs. We also consider the home’s insulation, layout, and heating and cooling needs before recommending a unit.
Installation involves removing the old equipment, preparing the connections, and fitting the new system to manufacturer requirements. Before finishing, we check the controls, airflow, and temperature performance with the home’s existing setup.
Heat Pump Installation and Repair in Markham
A heat pump must match the home’s heating and cooling requirements to perform efficiently year-round. North Wind HVAC installs and repairs heat pumps in Markham, including central ducted systems and ductless units for homes where ductwork is impractical.
During installation assessments, our technicians examine existing equipment, airflow capacity, electrical supply, and heating and cooling needs. Central systems must be compatible with existing ductwork and backup heating.
For repairs, we investigate poor temperature control, unusual noises, refrigerant leaks, and communication faults between indoor and outdoor components. Testing shows whether the problem is in the controls, airflow, or refrigeration system.
Other HVAC Services in Markham
North Wind HVAC also handles the equipment around the furnace and air conditioner, from ventilation and air quality to water heating and outdoor heating, in Markham.
Water heating and outdoors
- Tankless water heaters
- Generators (natural gas and propane)
- Heated driveways (hydronic)
- Hot water tanks
Cooling, heating and controls
- Thermostat repair
- Ductless air conditioning
- Commercial cooling
- Thermostat installation
- Commercial heating
Ductwork, gas and safety
- Ductwork
- Gas lines
- Red tag removal
Indoor air quality
- HEPA filtration
- Humidifiers
- UV air purifiers (including Fresh-Aire APCO-X)
- HRV and ERV ventilation
Why Markham Homeowners Choose North Wind HVAC
North Wind HVAC is TSSA approved and uses fully licensed technicians. Markham customers get a clear explanation of the fault before any repair begins.
Warranty on installs and repairs
Installs carry a 2-year labour warranty. A repair that involves a replaced part carries 30 days of labour warranty, and the part is typically covered for one year by the manufacturer. The install warranty excludes parts, manufacturer defects and unrelated issues. The full terms are on the warranty policy page.
Major brands, whoever installed them
North Wind HVAC repairs every major manufacturer’s equipment, whoever installed it. Being an existing customer is not required.
A family-owned company that stresses clear communication
North Wind HVAC is a family-owned company. Technicians explain what is wrong, what needs repair and what the options are before any work begins.
What Customers Say on Google
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★★★★★
Based on 166 reviews
Google
★★★★★
Our furnace died during a -5°C cold snap. They arrived in two hours and had a new unit running by dinner. Incredible emergency service!
★★★★★
We had an excellent experience with North Wind Heating & Air Conditioning! Alex quickly diagnosed the problem with our gas furnace and completed the repair efficiently and professionally. He arrived fully equipped with all the necessary tools to get the job done quickly and to the highest standard. Alex was friendly, knowledgeable, and thorough, making sure everything was working properly before leaving. His professionalism, attention to detail, and commitment to quality were truly impressive. Great service from start to finish! I highly recommend North Wind Heating & Air Conditioning and Alex to anyone looking for reliable, high-quality HVAC service.
★★★★★
We called on a Saturday and a serviceman came on Sunday!!! Great service!! Had our furnace checked and filter replaced. Also our condensation pump replaced. I would highly recommend them to anyone in the Barrie and surrounding areas.
★★★★★
Highly recommend North Wind for furnace service. They were professional, honest, and easy to deal with. The technician explained what was wrong, completed the work efficiently, and got our heat back on quickly.
★★★★★
North Wind Heating & Air Conditioning provided excellent service on our gas furnace. They arrived on time, found the problem quickly, and explained the repair clearly. The furnace has been running perfectly since. Very professional service.
★★★★★
5-star service. North Wind helped us with our gas furnace and the whole experience was smooth and professional. Great communication, knowledgeable technician, and quality workmanship. We’ll definitely use them again for future HVAC work.🙏
★★★★★
Very impressed with North Wind. Our furnace stopped working and they were able to diagnose and fix the issue quickly. The technician was knowledgeable, respectful, and left the work area clean. Would definitely call them again.
★★★★★
Very happy with the furnace service from North Wind Heating & Air Conditioning. The technician was knowledgeable, professional, and explained everything clearly. Our furnace is working properly again and the whole experience was excellent.
★★★★★
We had a great experience with North Wind Heating & Air Conditioning. The technician inspected our gas furnace thoroughly, completed the repair, and made sure everything was operating safely before leaving. Excellent service from start to finish.
★★★★★
Moved into a new home and A/C was not working, had someone else in come in and made things worse, then I had no heat. North Wind came out and assessed the damage and had my heat and air running as good as new within the hour, he even explained the new thermostat (as different from my last one) and even made sure the heat and air were both working well. I was very impressed, extremely knowledgeable, wished we would have called him first. 100% would recommend!!
★★★★★
Alex arrived ahead of scheduled time and saved the day! He was very knowledgeable and professional, and we have heat again. Thank you!
★★★★★
Top-notch furnace repair! Professional, punctual, and efficient. Everything was clearly explained and the repair was completed quickly. Great customer service and quality work.
★★★★★
Had an issue with our furnace not heating properly and called North Wind Heating & Air Conditioning. The technician arrived on time, quickly diagnosed the problem and had it fixed
★★★★★
Alex was great. My furnace stopped working on a Sunday in the middle of a cold snap. Alex came out within 2 hours, diagnosed the problem, and had the furnace company send the part as it was under warranty. Him and his technician were prompt, knowledgeable and got the job done. I would highly recommend using North Wind HVAC.
★★★★★
Our furnace stopped working and Alex came over quickly and fixed it in no time. Very professional and efficient service. Highly recommend North Wind Heating & Air Conditioning.
★★★★★
Very satisfied with the service! I called for help on a Saturday night when my furnace stopped working, and they responded immediately. A service visit was scheduled for the next morning (Sunday at 10 am). The technician quickly diagnosed the issue and fixed it within an hour. Highly recommended!
★★★★★
I had a furnace emergency out in Wasaga Beach. Someone was sent over within the hour and got the issue resolved in no time. Highly recommend
★★★★★
We called in for an after hours emergency situation with our furnace and the Technician arrived within 30 mins of our call. Once he arrived the issue was quickly resolved, parts replaced and clean up completed within 20 minutes. Amazing service by knowledgeable, efficient and a very pleasant professional, Alex . Will definitely call them again if needs arise and will highly recommend them to others.
★★★★★
Really appreciate for the furnace repair! Recommend
★★★★★
Honest and reliable company! They came on short notice, diagnosed the problem quickly, and had my furnace repaired in no time. Very impressed with the service.
★★★★★
Fast, friendly, and professional service. North Wind fixed my furnace the same day I called and saved us from a freezing night. Couldn’t be happier!
★★★★★
My furnace stopped working, and North Wind Heating and Air Conditioning came right away. The technician was professional, knowledgeable, and had everything up and running quickly. Excellent service, fair pricing, and very reliable. Highly recommend them for any furnace repair!
★★★★★
My furnace stopped working on a Saturday, and North Wind came over right away and fixed it on the spot. Amazing job and excellent service — fast, professional, and reliable. Highly recommend!
HVAC Services in Markham and Nearby Communities
North Wind HVAC provides furnace, AC and heat pump repair and installation to homeowners across Markham, seven days a week, including but not limited to the neighbourhoods below
- Angus Glen
- Box Grove
- Buttonville
- Cornell
- Greensborough
- Markham Village
- Middlefield
- Raymerville
- Rouge River Estates
- Unionville
- Victoria Square
- Wismer
HVAC Markham: Frequently Asked Questions
How long does a new furnace installation in Markham take?
A standard furnace replacement by North Wind HVAC in Markham takes 4 to 8 hours, or 6 to 10 hours when minor duct changes are needed. A new furnace with significant ductwork can take 1 to 2 days. North Wind HVAC is a TSSA registered contractor (#000281788), so every gas furnace is installed to Ontario code by licensed technicians. Each install starts with a free at-home consultation and quote, and the customer chooses the install date.
What extras come with a new furnace from North Wind HVAC in Markham?
A full furnace and AC purchase from North Wind HVAC in Markham includes a free humidifier installation, which helps with dry winter air. Every new installation carries a 2-year North Wind labour warranty on top of the manufacturer’s equipment warranty, which is typically 5 years and up to 10 years once the equipment is registered.
How much does a furnace repair service call cost in Markham?
A North Wind HVAC residential service call in Markham costs $139.99 + HST for the first hour on weekdays and $149.99 + HST for each additional hour. On weekends it is $199.99 + HST for the first hour and $189.99 + HST for each additional hour. The technician explains the findings and the recommended repair before going ahead, and repairs booked online receive 10% off.
What does North Wind HVAC check and fix during a furnace repair visit in Markham?
A North Wind HVAC furnace visit in Markham opens with a diagnostic and a safety check of the heating system. The faults handled include a furnace that fails to ignite, cycles on and off quickly, keeps the blower running or bangs when starting. A burner flame that burns yellow triggers combustion and carbon monoxide testing before the unit is cleared for use. The fault and the recommended repair are explained before work starts, and all gas work is done by TSSA-licensed G2 gas technicians.
Does North Wind HVAC take no-heat furnace emergency calls in Markham during winter?
Yes. North Wind HVAC answers furnace emergency calls in Markham 24/7 on 1 (877) 707-1615, with same-day or next-day appointments seven days a week, weekends included. The same team also handles AC units, heat pumps and other heating systems. The technician diagnoses the problem and explains the findings and the recommended repair before any work begins, and repair work carries a 30-day labour warranty.
Will North Wind HVAC service a furnace or air conditioner in Markham that another company installed?
Yes. North Wind HVAC repairs Markham furnaces and air conditioners it did not sell, and the homeowner does not need to be an existing customer. The technician diagnoses the unit and explains the recommended repair before going ahead, and a repair that replaces a part carries 30 days of labour warranty. When a unit keeps failing or drives up energy bills, a free at-home consultation covers replacement options.
Does North Wind HVAC install and repair all major heat pump brands in Markham?
Yes. North Wind HVAC is an authorized Mitsubishi Electric dealer and installs and repairs heat pumps from major manufacturers across Markham, including multi-zone systems. Repairs cover any make or model, regardless of who installed it. The heat pumps North Wind HVAC sells are built for colder climates, delivery is free with installation, new installs start with a free at-home consultation and quote, and installs carry a 2-year labour warranty.
Which Markham neighbourhoods does North Wind HVAC serve?
North Wind HVAC serves homes and businesses across Markham, including Unionville, Markham Village, Cornell, Berczy Village, Cathedraltown, Wismer, Milliken, Thornhill, Greensborough, Angus Glen, Box Grove and Armadale. Furnace, AC and heat pump appointments are available throughout the area seven days a week.
Does North Wind HVAC offer same-day AC repair in Markham?
Yes. North Wind HVAC books same-day or next-day AC repair in Markham seven days a week, including weekends. The technician diagnoses the system and explains the recommended repair before any work begins. Repairs booked online receive 10% off, and a repair that replaces a part carries 30 days of labour warranty. Emergency calls are answered 24/7 on 1 (877) 707-1615, and the main line is (647) 558-5528.
What guarantee covers North Wind HVAC work in Markham after the job is done?
New installations carry a 2-year North Wind labour warranty. Repair work carries 30 days of labour warranty, and replacement parts generally carry a 1-year manufacturer warranty. The install warranty excludes parts, manufacturer defects and unrelated issues. The full terms are on the warranty policy page and can be read before booking.
Does North Wind HVAC work on both homes and businesses in Markham?
Yes. About 80% of North Wind HVAC’s work is residential: furnaces, air conditioners, heat pumps, ductless systems and water heaters. The commercial side covers rooftop units, ventilation and exhaust systems, hydronic boilers and snow-melt systems, and preventive maintenance for commercial properties. HVAC and gas work is done primarily by North Wind’s own licensed team.
Book HVAC Service in Markham Today
Whether it’s a furnace that won’t light or a new system for the winter, North Wind HVAC’s licensed technicians are ready to help in Markham seven days a week. Call for a same-day or next-day visit, or request a free quote on a new installation.
Call (647) 558-5528 Get a Free QuoteEmergency line: 1 (877) 707-1615