Start with the system.
What is happening, when did it start, and how has the equipment been performing?
Heating & cooling service from people who understand your home, your equipment, and the job at hand.
Richmond Hill · Aurora · Newmarket
Bradford · Barrie

When your equipment stops working, you need someone who can make sense of the problem. We bring field experience and straightforward advice to the conversation.
From the first call to the finished work, we help you understand your options and what happens next.
Meet Mountain Energy ↗From a furnace that will not start to a boiler ready for replacement, we help you understand what your system needs. Our heating services cover diagnosis, repair, maintenance and installation. We look at the equipment, your home and the problem before recommending the next step.
Explore heating →Whether you need an AC repair, a new heat pump or cooling for a room without ductwork, start with the way your home actually feels. We assess equipment, airflow and installation requirements to help you compare practical options for cooling and year-round comfort.
Explore cooling & heat pumps →We install and service tank and tankless water heaters, and handle gas-line and appliance connection work. Whether hot water has stopped or you are planning a new appliance, we begin with the equipment, location and installation requirements. That makes the scope clearer before work starts.
Explore water heating & gas →Stuffy rooms, dry air and uneven temperatures can involve ventilation, humidity or the way air moves through your home. We assess the concern before discussing humidifiers, filtration, HRV/ERV equipment or ductwork changes. The aim is a practical improvement that suits your existing system.
Explore air quality & ductwork →No long questionnaire. No need to diagnose it yourself. Tell us a little about the issue and we’ll call to discuss the next step.
416-568-7676 ↗Tell us what’s happening.
A short note and your number are enough.
Talk through the options.
We’ll discuss your equipment and arrange the appropriate next step.
Know the scope before the work.
We explain the recommendation and proposed work.
Equipment age is one part of the story. Condition, repair needs, comfort and installation requirements matter too.
Talk through your options ↗What is happening, when did it start, and how has the equipment been performing?
A targeted repair may be enough. A replacement may make more sense when problems and costs add up.
Understand the proposed equipment, installation work and next steps before deciding.
Residential and light-commercial HVAC across our north GTA service corridor.
See where we work ↗Lennox Carrier Mitsubishi Electric Daikin Rheem Rinnai
Selected brands we install or service. Ask us about your specific equipment.Diagnostics, repairs, rooftop-unit service and preventive maintenance for light-commercial equipment.
Explore commercial HVAC ↗Start with a diagnosis. The condition of the equipment, repair cost, parts availability and your comfort needs all matter. We explain what we find so you can weigh the options.
Yes. We provide free estimates for proposed work. A service or diagnostic visit is different from an estimate; we discuss the scope and any applicable charges before scheduling.
We work to arrange the earliest practical service. Timing depends on urgency, location, seasonal demand, equipment and parts availability. Call to discuss a loss of heating or cooling.
Our primary service corridor is Richmond Hill, Aurora, Newmarket, Bradford and Barrie. Call to confirm availability for your property.
We work with equipment from brands including Lennox, Keeprite, Goodman, Carrier, York, Gree, Mitsubishi, Daikin, Rheem and Rinnai. Tell us your model so we can discuss the specific service required.
A repair, a replacement, or a question.
Talk it through with Mountain Energy.