Trusted Technicians in Ajax
Ajax summers push past 30°C, and Lake Ontario humidity keeps the load on cooling systems elevated throughout June, July, and August. When a cooling system fails, Smile HVAC dispatches a technician the same day, with 24/7 office availability for urgent calls across Ajax.
Smile HVAC has served Ajax homeowners with certified air conditioning repair for over 15+ years. Every in-home technician is TSSA-certified and licensed in gas, refrigerant, electrical, and plumbing.
Every Ajax air conditioning service call follows a three-step process.
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Low refrigerant forces the compressor to run without sufficient pressure
Lakeside pollen builds up on South Ajax condenser coils each spring, reducing heat transfer and raising energy consumption with each cooling cycle
Summer heat degrades capacitors over consecutive seasons; the system fails to start until the faulty component is replaced
Filters left unchanged past 90 days restrict airflow throughout the system and strain the blower motor, a recurring finding on annual maintenance calls
Older Ajax Homes systems frequently read a few degrees high, causing short-cycling before the set temperature is ever reached
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 .
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.
Maintenance, protection, or both — backed by our installation and our work.
Starting from
$ 999
/ MONTHAnnual tune-ups for your heating or cooling system to keep it running efficiently and catch small issues before they become expensive ones.
Starting from
$ 1499
/ MONTHUnlimited parts coverage on systems we install — including the heat exchanger, compressor, and refrigerant.
Popular
Starting from
$ 2100
/ MONTHThe complete package: yearly tune-ups plus unlimited parts coverage. Total peace of mind, one monthly price.
Why Smile Protection is different
Most HVAC protection plans in Canada cap repair coverage at $500–$600 per year. Ours doesn't.
When Smile HVAC installs your system, we stand behind it with truly unlimited parts coverage — including the components other plans exclude or limit:
Heat exchanger
Compressor
Refrigerant
All other parts
No deductibles. No payment caps. No labour costs, for 10 full years.
We're proud enough of our installation work to put unlimited coverage behind it. Available only on systems we install.
Michael T.
Apr, 2026
Smile HVAC is a great place for those who love to work and who are looking for professional growth.This job will provide you with opportunities to learn new skills, steadily growing wage and stable income.
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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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Mar, 2026
S Hammie
Feb, 2026
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Sundeep M.
Feb, 2026
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Devika Shah
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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.
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
For Business
Smile HVAC promises you a pleasant HVAC experience in Ajax, backed with the following features:
TSSA Contractor
Fully Certified
Best Rated
Always 5 Stars
Honest Prices
Guaranteed
Full Warranty
All repairs are covered
Natural Resources Canada recommends scheduled service aligned to seasonal demand for residential cooling systems. Ajax air conditioners benefit from attention at each stage of the year.
Air conditioners maintained on this schedule run reliably for 10-15 years. Units that skip seasonal service break down more frequently during peak demand.
Natural Resources Canada notes that dirty coils and blocked filters reduce system efficiency and capacity, forcing the system to run longer and raising electricity costs. ENERGY STAR certified central air conditioners use 8% less energy on average than standard models — an efficiency advantage that regular maintenance helps preserve over the life of the system.
Canada’s minimum efficiency standard for new central air conditioners is 13.4 SEER2 (the metric that replaced the previous 14 SEER). Units above that level carry a higher upfront cost that takes more than 11 years to recover at three months of annual use. The Lennox ML series, a single-stage central air conditioner built to that efficiency level, is the practical choice for Ajax residential cooling.
Correct sizing prevents short-cycling and continuous underperformance:
Common signs include reduced cooling output, unusual noises during operation, ice forming on the indoor unit, and higher electricity bills with no change in usage. Reduced cooling with the system still running usually points to a refrigerant leak or a blocked condenser coil. A diagnostic call early prevents further compressor damage and higher repair costs.
Ajax homeowners benefit from one professional service visit per year, completed in spring before the cooling season. Annual service covers refrigerant check, coil cleaning, capacitor testing, and thermostat calibration. Systems that skip annual maintenance break down more frequently during peak demand and lose measurable efficiency before obvious symptoms appear.
Smile HVAC charges $120 + tax for a diagnostic service call. When the homeowner approves the repair, that fee is deducted from the final price. Minor repairs such as capacitor replacement fall at the lower end of the cost range. Refrigerant recharge and compressor repairs carry higher costs depending on the system model and age.
Filter replacement and clearing debris around the outdoor unit are safe homeowner tasks. Refrigerant handling requires a licensed technician under Ontario’s O. Reg. 463/10 (Ozone Depleting Substances and Other Halocarbons), which mandates an ODP certificate for anyone working with refrigerants. Electrical and compressor repairs void most manufacturer warranties when completed without certification, and carry safety risks for untrained individuals.
Most AC repairs complete within 2-4 hours in a single visit. Capacitor replacements and refrigerant top-ups typically finish faster. Repairs requiring a special-order part may need a follow-up appointment, which Smile HVAC schedules at the time of diagnosis to minimise household downtime.
Turn the system off at the thermostat to prevent further compressor damage. Check the breaker panel and replace a blocked air filter if present. Call Smile HVAC for same-day emergency service. The Smile HVAC office maintains 24/7 availability for urgent AC failures.
Confirm the contractor holds TSSA certification and carries WSIB coverage before booking. Verify that technicians are in-home employees rather than subcontractors. Smile HVAC holds TSSA certification, carries $5,000,000 in liability insurance, and holds a 5.0 rating from Google reviews.
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