HVAC Services in Markham
Professional heating, cooling, and indoor air quality solutions for Markham homes and businesses. TSSA-licensed technicians, transparent pricing, and 24/7 emergency response.
Trusted HVAC Experts in Markham
Commercial, industrial, and residential HVAC expertise for Markham's diverse property types. From the tech corridor along Highway 7 to heritage homes in Unionville, Complete Air Solutions provides tailored heating and cooling solutions for one of the GTA's most dynamic communities.
With over 25 years of experience and more than 10,000 completed projects across the GTA, Complete Air Solutions is the name Markham property owners trust for quality workmanship, honest advice, and lasting results. We are fully licensed, insured, and committed to your complete satisfaction.
Quick Facts
- TSSA licensed and fully insured
- 25+ years serving the GTA
- 24/7 emergency service in Markham
- Free on-site assessments
- Warranty on all parts and labour
HVAC Services Available in Markham
Markham residents and businesses have access to our complete range of heating, cooling, and indoor air quality services.
Commercial & Industrial HVAC
Rooftop units, building automation, chillers, make-up air units, and large-scale systems for offices, warehouses, factories, and retail spaces.
Commercial & Industrial ServicesHeating Systems
Furnace installation and repair, boilers, heat pumps, and radiant heating. High-efficiency systems that slash your heating bills and keep you warm through Canadian winters.
Heating ServicesAir Conditioning
Central AC installation, ductless mini-splits, AC repair, and seasonal tune-ups. Fast emergency repairs when you need cool air now.
Cooling ServicesWater Heaters
Tank and tankless water heater installation, repair, and replacement. Commercial-grade hot water solutions for homes, restaurants, and high-demand facilities.
Water Heater ServicesIndoor Air Quality
Air purifiers, humidifiers, HRV/ERV ventilation systems, UV germicidal lights, and HEPA filtration. Breathe cleaner, healthier air year-round.
Air Quality SolutionsMaintenance Plans
Preventive maintenance programs that extend equipment life by years, prevent costly breakdowns, and reduce energy bills. Priority emergency service included for members.
View Maintenance PlansRed Tag Services
Red tag removal, warning tag resolution, and TSSA compliance services. Licensed gas technicians who resolve safety violations and restore your gas supply fast.
Red Tag ServicesWhy Markham Chooses Complete Air Solutions
Our commitment to excellence and local expertise set us apart from other HVAC providers in Markham.
Local Presence in Markham
Our service vehicles are regularly in the Markham area, meaning shorter wait times and faster response when you need us. We know the local neighbourhoods and can reach you quickly.
Fast Response Times
For non-emergency calls in Markham, we typically schedule same-day or next-day visits. For emergencies, our 24/7 dispatch gets a technician to your door as quickly as possible, day or night.
Knowledge of Local Building Codes
Every installation we perform in Markham meets or exceeds Ontario building codes and municipal requirements. Our TSSA-licensed technicians stay current on all regulations to ensure your HVAC system is compliant and safe.
Proven Track Record
Over 10,000 projects completed across the GTA, including hundreds in Markham alone. Our reputation is built on consistent quality, transparent pricing, and the kind of customer service that earns referrals.
Energy-Efficient Solutions
We help Markham property owners reduce their energy bills with high-efficiency furnaces, heat pumps, and smart thermostat installations. Our team recommends systems that balance comfort and cost savings for your specific needs.
Top Equipment Brands
We install and service all major HVAC brands, including Lennox, Carrier, Trane, Daikin, and Mitsubishi. Whatever your budget or preference, we will find the right equipment for your Markham property.
Emergency HVAC Service in Markham
Furnace failure in January? Air conditioning breakdown in July? Do not wait. Our Markham emergency response team is available 24 hours a day, 7 days a week, 365 days a year.
Real people answer the phone. No voicemail runaround.
Also Serving Communities Near Markham
In addition to Markham, our HVAC technicians serve the following nearby areas.
Request a Free Quote in Markham
Tell us about your HVAC needs and a Markham-area technician will follow up with a no-obligation quote.
Get Your Free Quote
Tell us about your project and we'll get back to you within 1 hour during business hours.