Certified HVAC Technicians
Smile HVAC provides HVAC services in Ajax with TSSA-certified technicians licensed in gas, plumbing, electrical, and refrigeration. Smile HVAC covers furnace repair, air conditioner installation, heat pump upgrades, and water heater service across Ajax. HVAC repair in Ajax follows consistent failure patterns across furnace, air conditioner, and heat pump equipment. Lake Ontario’s humidity accelerates component wear on cooling systems, while prolonged winter operation strains heating system ignition and heat exchanger components.
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Faulty igniters account for up to 25% of furnace no-heat calls during Ajax winters. Heating systems that restart after months of summer inactivity are the most vulnerable
Low refrigerant reduces air conditioner cooling output and strains the compressor. Ajax’s humid summers make proper refrigerant charge critical for maintaining indoor comfort
Dirty HVAC filters appear in roughly 30% of maintenance visits. Restricted airflow forces both furnaces and air conditioners to cycle longer, raising energy consumption
A miscalibrated thermostat causes erratic cycling without any hardware failure. Smart thermostat upgrades save 10–15% on heating and cooling costs while eliminating calibration issues
Compressor failures represent approximately 15% of major cooling system service calls. Units older than ten years in Ajax carry the highest failure risk
Older Ajax homes with aging ductwork often have cold upper rooms in winter and overheated second floors in summer. Duct sealing and balancing restore consistent airflow
We begin with a thorough assessment of your Heating Systems or Air Conditioning Systems. Our technicians identify the root cause of the issue, explain the problem clearly, and provide transparent recommendations for HVAC repair in Ajax .
Once approved, we perform precise repairs using quality parts and proven methods. Whether it’s a furnace, air conditioner, or full system upgrade, we ensure your equipment operates safely and efficiently.
After completing the work, we test the entire system to confirm peak per formance. We also provide maintenance tips to help prevent future breakdowns and keep your HVAC system running reliably in ever y season.
Todd Wilkie
Apr, 2026
Mr. CHIN
Apr, 2026
Bon Orallo
Apr, 2026
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R. J Sum
Apr, 2026
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Danny Ren
Mar, 2026
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Blair Baxter
Mar, 2026
S Hammie
Feb, 2026
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Devika Shah
Feb, 2026
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Derek Smith
Feb, 2026
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Alexander Miretsky
Jan, 2026
Smile HVAC did a great job installing a new furnace for us. Karl arrived quickly and performed a thorough diagnostic. Valery installed the new furnace the very same day, and Genady provided a fair price and coordinated everything seamlessly.
All the work was completed quickly and professionally—even on a bitterly cold winter day at –15°F. Truly top-tier service. We really appreciate everyone’s efforts!
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Stay comfortable year-round with trusted heating and cooling services from Smile HVAC. Call us or send a request and our team will get back to you as soon as possible.
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We provide the best and honest prices in the GTA area and delivery the best quality work. We believe in integrity and provide honest advice to all our customers and make them aware of the work needed. This helps in maintaining a trustworthy relationship with customers.
Smile HVAC is built on the trust and quality we have been delivering through our services. These are the basis of our company and we continue to hold the standards up. We offer a full range of services and have expertise in furnace installation & repair and ac installation services.
When it comes to paying for the work done or the services offered, we care about your comfort. We have multiple payment options to pay and also offer affordable ways to pay for the job done. Giving our customers the ease and flexibility to pay.
All our technicians are fully licensed for working and are trained with the best of knowledge and hands-on experience. They not only complete their job but go the extra mile on educating the customer about the issue and deliver expert advice.
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Ajax’s position on Lake Ontario’s north shore creates a microclimate that directly shapes HVAC requirements for every residential property. According to Weather Atlas, Ajax records average winter lows of -8°C in January and summer highs of 25°C in July, with humidity levels reaching 82% during peak summer months.
Lake Ontario acts as a humidity reservoir from June through September. Moisture-laden air drifts inland and forces air conditioning systems to handle both temperature and dehumidification loads simultaneously. Outdoor condenser units near the lakeshore accumulate corrosion faster than in drier inland cities, shortening service life without regular maintenance.
Winter lake-effect patterns bring sudden temperature drops and additional snow events. Furnaces in Ajax must sustain consistent output for months of continuous operation. Spring and fall add rapid daily swings of up to 15°C, making programmable thermostats and properly calibrated HVAC systems essential for maintaining comfort without energy waste.
A heat pump is a dual-function HVAC system that provides both heating and cooling from a single outdoor unit by transferring heat rather than generating it through combustion. Cold-climate air source heat pumps operate efficiently down to -25°C, making Ajax’s moderate winters (average low -8°C) well within the effective operating range.
Modern heat pumps carry HSPF ratings of 8.2 to 13 for heating efficiency and SEER ratings of 16 to 21 for cooling performance. Air source heat pump installation in Ajax typically costs $4,500 to $8,000 before rebates. Geothermal (ground source) systems range from $20,000 to $30,000 but deliver the highest long-term efficiency.
Ontario’s Home Renovation Savings (HRS) Program, active through November 2026, provides rebates for qualifying heat pump installations. Gas-heated homes receive $500 per ton of heat pump capacity, up to $2,000 maximum. Electrically heated homes qualify for $1,250 per ton, up to $7,500. Ground source systems can receive up to $12,000 in total rebates. Smile HVAC is a registered contractor.
Smile HVAC installs, repairs, and maintains both tank and tankless water heaters across Ajax. Tankless units heat water on demand and eliminate standby losses. Tank models store 40 to 75 gallons for homes with consistent high-volume demand.
Indoor air quality solutions from Smile HVAC include HEPA filtration, humidifier installation, and HRV (Heat Recovery Ventilator) servicing. These solutions reduce airborne allergens and control humidity within the recommended 30% to 50% range.
HVAC maintenance in Ajax follows a biannual schedule: a spring tune-up for cooling systems and a fall tune-up for heating systems. Regular maintenance improves system efficiency by 15–25% and extends equipment lifespan by 3 to 5 years, according to Natural Resources Canada.
Spring cooling system tune-up:
Fall heating system tune-up:
Smile HVAC offers a Maintenance Plan starting at $9.99/month covering scheduled tune-ups and priority service. A Protection Plan from $14.99/month adds repair coverage and free emergency calls. Both plans reduce the risk of mid-season breakdowns during Ajax’s peak demand periods.
Canada mandates a minimum 95% AFUE (Annual Fuel Utilization Efficiency) for all new gas furnaces. High-efficiency models reach 96–98% AFUE, converting nearly every dollar of fuel into usable heat. Smile HVAC installs Lennox, Carrier, Goodman, Daikin, and over 30 additional brands across Ajax.
Central air conditioners in Canada require a minimum SEER rating of 14 (13.4 SEER2) as of January 2023. The Lennox ML series at 14 SEER meets this baseline and suits Ajax homeowners who use air conditioning approximately 3 months per year. Higher-SEER models cost more upfront and in a short cooling season may take over a decade to offset the price difference through energy savings, making a baseline-SEER unit the most practical choice for most Canadian homes.
Smart thermostats reduce energy consumption by 10–15% through automated scheduling and occupancy detection. Combined with a high-efficiency furnace and properly sized air conditioner, Ajax homeowners can lower annual utility costs without sacrificing indoor comfort.
A clogged air filter is the most frequently identified cause of HVAC failures in Ajax. Dirty filters restrict airflow, cause furnace short-cycling, and reduce air conditioner cooling output. Ajax homes typically need filter replacement every 60–90 days during peak heating and cooling seasons.
HVAC systems in Ajax benefit from biannual servicing: spring for cooling equipment and fall for heating. Annual service at minimum maintains efficiency and extends equipment lifespan. Smile HVAC’s Maintenance Plan starts at $9.99/month for an air conditioner, $9.99/month for a furnace, and covers both seasonal tune-ups.
Watch for unusual noises (banging, rattling, squealing), frequent cycling without reaching target temperature, rising utility bills, or uneven temperatures between rooms. A yellow or flickering furnace flame instead of steady blue signals a combustion issue requiring immediate professional inspection.
System age, equipment type, repair complexity, and parts availability all influence cost. Smile HVAC charges $120+tax for diagnostics. When repair proceeds, that $120+tax is deducted from the final price. Written pricing is provided before any work begins.
Verify TSSA certification for gas work and refrigerant licensing for AC service. Confirm the contractor carries liability insurance and WSIB coverage. Smile HVAC holds $5,000,000 in liability insurance, employs only in-house technicians (no subcontractors), and backs installations with a 10-year workmanship warranty.
A 95–96% AFUE gas furnace paired with a 14 SEER central air conditioner suits most Ajax homes. Heat pumps offer a dual-function alternative, providing both heating and cooling from one system. Smile HVAC performs a load calculation for every Ajax property to match system capacity to actual requirements.
Smile HVAC is authorized and licensed to service over 30 brands, so if you own any HVAC equipment from these brands, you don’t need to call two companies. Smile HVAC will help you solve all HVAC-related issues and will assist with repairs and installations. We work with all brands including Lennox, Goodman, Amana, Keeprite, Bryant, Daikin, Carrier, York, Trane, Comfortmaker, Payne, Tempstar, Rheem, Ruud, and Mitsubishi Electric
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Smile HVAC provides HVAC services to homeowners across Ajax’s communities, including:
