Efficient Heating and Air Conditioning in Ancaster, Ontario, is a full service/installation company dealing with heating, air conditioning and ventilation systems. We specialize in residential and light commercial HVAC. Keeping the community comfortable We are a family owned and operated HVAC company with 35 years of experience. Our specialties are gas, propane, duct fabrication, tank-less water heaters, fireplaces, furnaces, air conditioning and everything else in between. Quality service Efficient Heating and Air Conditioning offers service repairs on most brands. We welcome the chance to work with you to improve the comfort of your home or office. Contact Efficient Heating and Air Conditioning today for a free estimate and/or to schedule maintenance. more... See more text