HVAC & Furnace, Mechanical Services in Toronto

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 HVAC, Heat Pumps, Smart Thermostats, Mechanical Rooms

We combine engineering-grade knowledge with real-world installation experience to deliver mechanical systems that are efficient, safe, and built to last. Our HVAC technicians and mechanical installers are certified, insured, and fully trained in current code requirements, ventilation guidelines, and equipment performance standards.

We serve all areas of Toronto and the GTA including Richmond Hill, Vaughan, Markham, Aurora, Newmarket, North York, Scarborough, and Mississauga. Our reputation is built on transparent pricing, clean workmanship, and a strong commitment to customer satisfaction.

Whether you're replacing a furnace, installing a new cooling system, or designing a complete mechanical solution for a custom home or major renovation, Sigma Home is your trusted partner from concept to commissioning.

 HVAC, Cooling & Mechanical Services in Toronto & GTA 

Sigma Home provides full-service HVAC, cooling, and mechanical system solutions across Toronto and the Greater Toronto Area. With over a decade of hands-on experience, we specialize in designing, installing, and maintaining high-efficiency climate control and mechanical systems for residential and light commercial properties.

Whether you’re building a new home, upgrading outdated equipment, or adding energy-efficient features to a renovation project, our certified HVAC and mechanical technicians deliver reliable systems built to perform in Canada’s demanding climate.

Our HVAC services are tailored to meet your specific needs — from maximizing comfort and energy savings to ensuring long-term system reliability. We install and service all major makes and models of heating and cooling equipment, including high-efficiency furnaces, central air conditioners, ductless mini-splits, heat pumps, and ventilation systems.

• Furnace installation and replacement (gas, electric, high-efficiency models)
   
• Central air conditioning system installation and repair
   
• Heat pump installation (ducted and ductless options)
   
• Ductless air conditioning systems for homes without ductwork
   
• Smart thermostat integration and zoning controls
   
• Preventative HVAC maintenance and seasonal tune-ups
   
• HVAC troubleshooting and repairs
   
• Custom ductwork design, balancing, and airflow optimization
   
• Ventilation upgrades including HRV (Heat Recovery Ventilation) and ERV (Energy Recovery Ventilation) systems
   
• Indoor air quality solutions, filtration, humidifiers, and dehumidifiers
   

Our licensed HVAC contractors serve homeowners throughout Toronto, Richmond Hill, Vaughan, Markham, Aurora, Newmarket, and all surrounding areas in the GTA.

We install powerful and efficient cooling systems that are built to keep your home cool and comfortable during Ontario’s hottest months. Whether you need a new AC installation or fast air conditioner repair, our team offers responsive, dependable service with long-term performance in mind.

• Central air conditioning installation
   
• Air conditioning replacement and upgrades
   
• Ductless air conditioner systems
   
• AC repair and diagnostics
   
• Seasonal AC maintenance and filter replacement
   
• Smart cooling controls and Wi-Fi thermostat setup
   
• Cooling system sizing and design for new homes or renovations
   

All cooling systems we install meet or exceed ENERGY STAR® standards and are selected to provide optimal performance based on the size and layout of your home.

In addition to HVAC and cooling, Sigma Home specializes in complete mechanical system installation and upgrades — ideal for new construction, major renovations, and custom homes. Our mechanical team handles complex builds and integrates heating, ventilation, air distribution, gas piping, and specialty systems to deliver a seamless solution.

• In-floor radiant heating system installation
   
• HRV and ERV system design and setup
   
• Custom mechanical room layout and equipment integration
   
• Snow melting systems for driveways, walkways, and rooftops
   
• Hydronic heating system installation
   
• Circulator pumps, manifolds, zone control panels
   
• Pool heater installation and pool mechanical systems
   
• Gas piping for HVAC systems, water heaters, fireplaces, and appliances
   
• Rough-ins for HVAC, plumbing, and gas lines in new builds
   
• Equipment replacement and mechanical upgrades during renovations
   

We work closely with homeowners, contractors, and designers to ensure mechanical systems are efficient, code-compliant, and built to the highest standards.

• Over 10 years of hands-on experience in HVAC and mechanical system installations
   
• Fully licensed and insured technicians serving Toronto and the GTA
   
• Trusted expertise in new construction, home renovations, and system upgrades
   
• Energy-efficient solutions that reduce utility costs and improve home comfort
   
• Transparent pricing, detailed estimates, and responsive customer service
   
• Support for residential and small commercial mechanical projects
   

We proudly serve Toronto, North York, East York, Scarborough, Etobicoke, Vaughan, Richmond Hill, Markham, Thornhill, Aurora, Newmarket, Bradford, King City, Stouffville, Keswick, and surrounding communities in Southern Ontario.