Yearly heating and cooling care plan
From $89
Per year
Heating & air
Comfort systems sized for your home and installed right.
Keystone installs, repairs and maintains heating and cooling systems for homes, offices and new builds.
Equipment
Systems we install and service.
Central air
An outdoor condenser paired with an indoor coil that cools the whole house and pulls moisture out of the air.
Heat pumps
One efficient system that heats in winter and cools in summer by moving heat into or out of the house.
Ductless mini splits
Quiet wall units for additions, garages, sunrooms and any room the main system can't keep comfortable.
Packaged units
Heating and cooling in a single cabinet, set on a pad or a roof, for homes and small commercial buildings.
Furnaces and air handlers
Steady warmth on the coldest nights, with variable speed options that run quieter and more evenly.
Indoor air quality
Humidifiers, fresh air ventilation, better filters and UV lights for cleaner air in every room.
Maintenance
Tune it up before you need it.
Book a heating check in the fall and a cooling check in the spring, and most breakdowns never happen. Our care plan covers both visits and puts you first in line when it gets busy.
Every tune-up includes
A full system check, point by point.
- Clean and inspect the burners and flame sensor
- Inspect the heat exchanger for cracks
- Confirm the flue is venting properly
- Test the thermostat and safety switches
- Flush the condensate line and check the pump
- Rinse the outdoor coil
- Measure compressor voltage and amperage
- Check refrigerant levels and pressures