It is very important to find good local geothermal contractors to Install a geothermal heat pump system. The quality of the installation definitely plays a large part in determining the efficiency of the geothermal heating and cooling system. The quality contractor should perform a proper Heatload Calculation until a contract is signed or an upfront fee is paid. Look for experienced geothermal contractor and an driller who is familiar with the local terrain.
The Ontario Geothermal Association is a not-for-profit corporation helping to advance Ontario's geothermal industry. They link consumers with local geothermal contractors. I made a list of few geothermal contractors in Ontario with good reviews.
Golder Associates Ltd
geothermal contractor, geothermal heat pump systems designer, professional engineers
Phone: 905-567-6100 ext.1169
Waterloo Energy Products
residential geothermal systems installer, commercial heat pump installer, contractor
Ground Heat Systems International Inc.
Services: residential heat pump installer, commercial heat pump installer and geothermal contractor