Residential HVAC Service Provider

Unionville Heating customers know the value preventative maintenance on their furnace and air conditioners provides to protect the performance and extend reliability of their system. If your present system is out of warranty, we can help your family stay comfortable all year long. Introducing our “We Care” annual service program. We will contact you annually for your furnace, or your air conditioner. We report to our customers with a list of our recommendations including how to get the cooling to the second floor more efficiently. Sign up to receive our reminder notice Unionville Heating & Air Conditioning – Markham HVAC Heating and Cooling “We Care” program click here.


Unionville Heating - We Care

dirty gas fireplace log set Unionville Heating and Air Conditioning
clean gas fireplace log set Unionville Heating and Air Conditioning

Gas Fireplace Repair and Maintenance

Unionville Heating and Air Conditioning is a full-service gas fireplace repair and maintenance company, specializing in quality inspection, gas fireplace repair, cleaning and certification of gas fireplaces and gas log sets for homeowners, property managers, realtors and home inspectors.


Annual Service and Maintenance

The purpose of preventative maintenance is to keep your HVAC system running all season long with no surprise breakdowns, operating at top efficiency.


Heating and Air Conditioning Repairs

Whether you need quick AC repair our staff performs expert quality AC repair, maintenance and installation throughout York and Durham Region.


Water Heater Service and Installation

We can handle any make or model of tankless water heater or hot water tanks. We have a large selection of high quality parts in inventory.


Custom Ductwork

We offer custom ductwork design, fabrication, installation, and modification for residential air conditioning and heating systems.


Air Cleaner and Humidifier Installation

Installing a humidifier in your home is not only beneficial to your family’s health, but also to the health of your furniture and fittings.


Indoor Air Quality Systems Install

Clean air is essential for good health, and this is especially true when it comes to indoor air. We spend close to 90% of our time indoors

products serviced

customer service

Polite and Prompt Technicians

Your schedule is important, so our technicians won’t keep you waiting. We are on-time and respectful and our technicians wear boot covers to keep your carpet clean and tidy. We are here to help 24 hours a day 7 days a week. Contact us today to schedule your free estimate.

Guaranteed Job

Our technicians are highly trained and experts in HVAC service and replacements. We guarantee to do the job right the first time!

Fast Reliable

Expert Heating & Air Conditioning provides fast, reliable, and dependable heating and air conditioning service. We stay within our territory. All our business is local so we’re always close by. If your system needs service, we can help!

Honest and Fair

We are thorough, informative, and knowledgeable and will treat you honestly and fairly. We pay attention to details because it’s the little things that make all the difference.

By Appointment Only

New Ontario Consumer Protection laws are in place to ban door-to-door sales of furnaces, air conditioners, water heaters and other related goods or services.  This law effective March 2, 2018 protects consumers from aggressive and misleading contracting at home.  No employee from Unionville Heating will ever visit your house unsolicited.  We’re happy to help with your home HVAC needs.  Please call or e-mail us for an appointment.

HVAC Service? Call:905-479-1290


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