HVAC Services in Guelph & Waterloo Region

Heating & Cooling Repairs and Service

When your furnace quits in January or your AC stops cooling in July, you need a clear diagnosis and practical options. Cornerstone Trade Solutions provides HVAC service across Guelph and Waterloo Region for a wide range of equipment makes and models.

We also offer preventative maintenance programs to keep your system running efficiently year-round and extend equipment life.

Comfort problems are not always caused by the equipment alone. Airflow, duct sizing, filter restriction, thermostat placement, humidity, insulation, venting, gas pressure, refrigerant charge, and electrical controls can all affect performance. Our technicians look at the full system so the recommendation is based on how the home actually behaves, not just the age of the furnace or air conditioner.

For homeowners planning renovations, additions, basement finishes, or mechanical-room upgrades, HVAC decisions often overlap with plumbing and electrical work. Cornerstone can coordinate ductwork, gas piping, condensate drainage, electrical circuits, smart thermostats, humidifiers, HRVs, boilers, and water heaters without forcing you to manage separate contractors.

• Furnace repair & tune-up
• Air conditioner repair & recharge
• Heat pump service & repair
• Boiler repair & maintenance
• Thermostat replacement
• Ductwork inspection & sealing
• Air handler service
• Humidifier installation & repair
• HRV / ERV service
• Zone control systems
• Carbon monoxide inspection
• Seasonal maintenance programs
• Fan coil units

Installation options also include ductless mini-split systems and coordinated light commercial mechanical services.

Hybrid Heat Pump Systems

A hybrid heat pump system pairs a cold-climate air-source heat pump with your existing gas furnace. The system automatically selects the most efficient heating source based on outdoor temperature — typically switching to gas when temperatures fall below the heat pump's optimal range (around −15°C).

Hybrid systems are a practical path for Ontario homes that want better efficiency without giving up the reliability of gas backup during colder weather. They can also provide high-efficiency cooling in summer, reducing the need for a separate air conditioner replacement. Cornerstone reviews the existing furnace, ductwork, panel capacity, outdoor unit location, utility rates, and comfort goals before recommending a design.

Benefits of a Hybrid Heat Pump

• Reduces heating energy costs by up to 40%
• Works efficiently in Ontario winters down to −30°C
• Provides both heating and cooling from one unit
• Reduces carbon footprint without sacrificing comfort
• Incentive and financing review during consultation
• Compatible with most existing gas furnaces and ductwork

We carry and install cold-climate heat pumps from leading brands and will size the system to your home's heat load for maximum efficiency.