Green Systems - Geothermal
Green Systems - Solar
Systems & Products
Ventilation & Exhaust Systems
Mechanical Damper Systems
Energy Management Systems
Heating & Cooling System Design
Warm Air Furnaces
Air Conditioning Systems
Thermostats
Heat Pumps
Hybrid Heating and Cooling
Indoor Air Quality Products:
Humidifiers
Electronic Air Cleaners
Media Air Filters
Air-to-Air Heat Recovery
 Van Grol provides design/build/installation/maintenance for HVAC heating, air conditioning, process
cooling solutions, equipment maintenance and repair service to a full spectrum of residential housing, including single-family and multi-family developments, new building construction and retrofitting systems with the latest in green technology and systems.