J&S Heating and Air Conditioning

J&S Heating and Air Conditioning J&S Heating and Air Conditioning has been serving the Niagara region since 1956. We service all makes and models.

J&S is a Factory Authorized Carrier Dealer specializing in service and retrofit installations of residential and commercial furnaces, boilers, air conditioners, water heaters, and tankless water heaters, as well as commercial refrigeration and rooftop equipment. We also offer competitive pricing and customized annual preventive maintenance plans.

Things are starting to come together with the placement of our new sign!
06/17/2026

Things are starting to come together with the placement of our new sign!

We are moving to a new location! Our office will open bright and early at 8:30am on June 22, 2026. Can't wait to see yo...
06/04/2026

We are moving to a new location! Our office will open bright and early at 8:30am on June 22, 2026. Can't wait to see you at our new location at 620 Welland Avenue, St. Catharines!

05/27/2026
05/18/2026
Did you know?
05/08/2026

Did you know?

Most people think an air conditioner only cools the air, but it also quietly pulls moisture out of your room, turning invisible humidity into real dripping water outside through the drain pipe. 💧❄️

04/24/2026

Allergies acting up? Your indoor air could be, too. Whole home filtration and purification help reduce pollen and airborne irritants that make their way inside. Ask your local expert how a cleaner air upgrade can make a noticeable difference this Spring.

Thinking about a new heat pump? Watch this video to learn before you buy.
04/23/2026

Thinking about a new heat pump? Watch this video to learn before you buy.

Thinking about installing a heat pump? In this video, we break down the real cost of a heat pump system and what actually drives the price up (or down).From ...

04/21/2026

Keeping classrooms comfortable isn’t just about temperature—humidity matters, too. Without it, pages curl, floors warp, and students could be left feeling cold and clammy. Rheem® Renaissance™ and Resolute™ units come with built-in features such as HumidiDry® to control temperature and humidity independently for peak comfort.

Learn more: discover.rheem.com/commercial-air/experience/rheem-k12schools

Last day at the Niagara Spring Home Show today. Come on out and support our local businesses!
04/19/2026

Last day at the Niagara Spring Home Show today. Come on out and support our local businesses!

Address

425 Glendale Avenue
Saint Catharines, ON
L2R7A7

Opening Hours

Monday 8:30am - 5pm
Tuesday 8:30am - 5pm
Wednesday 8:30am - 5pm
Thursday 8:30am - 5pm
Friday 8:30am - 12pm

Telephone

+19056829287

Website

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