Air Conditioning Installation St. Catharines
When your home feels more like a sauna than a sanctuary, it’s time to bring in the pros. Mr. Furnace Heating and Air Conditioning has been helping families in St. Catharines and the surrounding areas stay cool for over 45 years. We don’t just install air conditioners, we restore comfort. Our experienced team offers same-day installation on most systems, so you don’t have to sweat through another sleepless night. From expert advice to complete setup, we’re here to get your space feeling just right.

Why Choose Mr. Furnace for Your Air Conditioning Installation?
Reliable, Professional Installation
An unreliable AC unit isn’t just inconvenient, it’s expensive. Higher utility bills, patchy cooling, and repeated breakdowns usually mean the system was never installed properly in the first place. At Mr. Furnace, we approach every install like we’re working on our own homes. We evaluate your setup, solve the underlying issues, and make sure your cooling system works like it should, right from day one.
We’re On Our Way!
Hot weather doesn’t wait, and neither do we. Our team is equipped to handle most air conditioner installations the same day you call. We show up ready to work and get the job done with zero drama. Once we’re finished, you’ll be wondering why you didn’t do it sooner.
Flexible Payment Plans
Replacing your AC shouldn’t throw your finances into chaos. That’s why we offer flexible financing, seasonal discounts, and payment plans to make upgrading more accessible. We’ll help you find a cooling solution that fits both your home and your wallet.
Mr. Furnace’s Guarantee
If you’re not satisfied with your new air conditioner within the first year, we’ll address it for you. No runarounds. Just honest service backed by a 1 year satisfaction guarantee. It’s how we’ve done business in St. Catharines for over four decades.
A poor window air conditioner fitting or faulty central air conditioner installation can lead to high energy bills and constant repairs. Mr. Furnace ensures reliable air conditioning installation in St. Catharines that is done right the first time. Get in touch today!
Easy Air Conditioning Installation Process
Step 1: Free Consultation & Quote
Every home is different. That’s why we begin with a no-pressure consultation where we learn what you need, inspect your space, and guide you through the best options. Whether it’s a central unit or ductless system, we’ll make sure the solution fits your space and your budget.
Step 2: Removing Your Old Air Conditioner
Have an outdated or broken unit? No problem. We safely disconnect your current system, handle all refrigerants and electricals, and dispose of it responsibly. It’s quick, clean, and handled by pros.
Step 3: Preparing for Installation
Before we install anything, we make sure your home is ready. That includes checking ductwork, electrical connections, and airflow to ensure your system operates at peak performance. If something needs fixing, we do it.
Step 4: Installation & Final Testing
We install your new system with attention to every detail. Once it’s in, we calibrate the thermostat, check for even cooling, and walk you through how to use everything. We also help with warranties and provide aftercare if you need us later.
Benefits of Professional Air Conditioning Installation by Mr. Furnace
Precise Sizing for Peak Performance
An air conditioner that’s too large or too small for your home can cause energy waste and uneven temperatures. Our experts calculate the proper capacity based on your square footage, insulation, and airflow requirements, ensuring your central air conditioner installation delivers consistent, efficient cooling.
Avoiding Leaks & Water Damage
Poor installation can result in moisture issues that damage walls, ceilings, and flooring over time. At Mr. Furnace, we secure every connection, seal condensate lines, and confirm proper drainage to protect your home from leaks and water-related repairs.
Reduced Risk of Breakdowns
Improper setup can lead to refrigerant leaks, faulty wiring, and weak airflow, all of which shorten your air conditioner’s lifespan. We install systems that are built to last, reducing the risk of ongoing repairs and unexpected breakdowns.
Safety & Compliance
Every air conditioning installation includes electrical and refrigerant handling, which requires strict safety protocols. Our technicians are trained, certified, and up to date on St. Catharines building codes to ensure your system runs safely and efficiently from day one.
Frequently Asked Questions About Air Conditioning Installation in St. Catharines
Central air conditioner installation shouldn’t come with surprise costs or unreliable service. Mr. Furnace makes air conditioning installation in St. Catharines easy with upfront pricing and skilled professionals. Contact us for a free quote.
What Are the Signs That It’s Time to Replace My Air Conditioner?
If your air conditioner is running nonstop, pushing out warm air, or showing signs of wear like odd noises and inconsistent temperatures, it may be time for a replacement. Frequent breakdowns and rising energy bills are also clear indicators.
How Long Do Air Conditioners Last?
With proper servicing, a central air conditioner installation typically lasts 10 to 15 years. Ductless mini-split systems can last even longer, up to 20 years or more, if maintained regularly.
Will I Need New Ductwork for My Air Conditioner Installation?
That depends on the condition of your current ductwork. For a central air conditioner installation, your ducts must be properly sealed, clean, and well-insulated. If they’re damaged or inefficient, we may recommend repairs or replacements. Ductless systems, on the other hand, don’t require any ductwork at all.
How Much Does It Cost to Install an Air Conditioning System?
Pricing depends on several factors, including your home’s size, the type of system installed, energy efficiency ratings, and installation complexity. At Mr. Furnace, we offer clear quotes with no hidden fees, so you always know what to expect.