For over ten years, Quest Geothermal has done only one thing – install geothermal systems. When you work with Quest, you are benefiting from the knowledge and experience of experts.With their commitment to the highest quality geothermal installations and the best customer service, Stuart and Glenn have built Quest Geothermal into Ontario’s winning choice for geothermal installation and conversion. Quest has proudly served the province for over a decade and has installed upwards of 700+ geothermal systems, keeping Ontarians warmer, making our planet greener, and saving you money.