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Your servicing during COVID-19
Since the beginning of the COVID-19 outbreak, we have been closely following the advice of Canada’s public health authorities. We have followed their recommendations and have implemented numerous changes in our service program to focus on our highest priority—the health and safety of our customers and our employees.
100% Satisfaction Guaranteed with 10 Years on the Market
Customer Satisfaction Guaranteed
Individualized HVAC Options
Welcome to CASI Air & Water
in London, Ontario
CASI Air & Water is a fully licensed and professional HVAC and air/water purification company. Based out of London, Ontario, CASI serves clients from Windsor to Ottawa and everything in between.
Individualized HVAC Options
Customer Satisfaction Guaranteed
Individualized HVAC Options
CASI offers services from furnaces, air conditioning systems, purification for air and water, full maintenance and protection packages, to the duct and furnace cleaning. Our licensed gas fitters insure a perfect job with every customer, not only with our furnace and duct divisions but also with our water and air division.
Customer Satisfaction Guaranteed
Customer Satisfaction Guaranteed
Customer Satisfaction Guaranteed
With our competitive pricing, top of the line products, impeccable customer service, and incredible protection plans, it’s no wonder that CASI is the number one HVAC and water purification company in South-Western Ontario. Please take a look at our online product line, and feel free to call our office for a free quote on a furnace, A/C, d
With our competitive pricing, top of the line products, impeccable customer service, and incredible protection plans, it’s no wonder that CASI is the number one HVAC and water purification company in South-Western Ontario. Please take a look at our online product line, and feel free to call our office for a free quote on a furnace, A/C, duct cleaners, air purifiers, water conditioners and softeners, or reverse osmosis water purifiers