A/C Repair & Installation in Whitby & Durham Region

Whitby Air Conditioning

A hot, humid Durham Region summer is a bad time to find out your air conditioner has failed. Walchuk Heating & Cooling repairs, installs, and maintains residential air conditioning systems across Whitby, Oshawa, Ajax, Courtice, Bowmanville, Port Perry, and Port Hope, with two Whitby locations and licensed, insured technicians.

Air Conditioner Repair

The problem: weak or warm airflow, ice forming on the unit or refrigerant lines, unusual noises, short cycling, rooms that stay humid even when the AC is running, and a spike in your summer electricity bill are the most common reasons homeowners call us about an air conditioner.

The fix: our guide to common air conditioner problems walks through what each one usually means, and our technicians diagnose the actual cause before recommending a repair.

Repair or Replace?

An older AC that's constantly breaking down often costs more to keep patching than to replace, but that's not always true, and it depends on the age of the unit and what's actually wrong with it. We diagnose first and recommend based on what we find, not what's easiest to sell. See our full guide on deciding to repair or replace.

Air Conditioner Installation

The problem: an AC that's constantly breaking down, running up your summer electricity bill, or a home that's never had proper cooling installed are the usual reasons to consider a new system.

The fix: we install air conditioning systems from major residential brands, sized correctly for your home. A higher SEER rating means lower cooling costs over the life of the system. If you're comparing options, our explainer on SEER and HSPF ratings breaks down what the numbers actually mean for your bill. Every installation is backed by our one-year workmanship guarantee and 100% satisfaction guarantee, and our technicians are licensed (TSSA #000229172, HRAI #114449) and fully insured (WSIB #5318422).

Air Conditioner or Heat Pump?

A heat pump can handle both cooling and heating, and Ontario's rebate programs have made them a more common question from homeowners replacing an aging AC. If you're weighing the two, see our comparison of air conditioners versus heat pumps, or learn more about heat pump and ductless systems directly.

Air Conditioner Maintenance & Seasonal Tips

Annual maintenance keeps your system running efficiently and helps avoid a breakdown on the hottest day of the year. See what's included in a proper AC preventative maintenance visit, and for simple ways to reduce how hard your system has to work, read our tips on keeping your home cool without overworking your air conditioner.

Financing

We offer lease-to-own financing on new AC installations. See our lease-to-own breakdown for how it works.

Air Conditioner Repair & Installation Across Durham Region

We serve homeowners in Whitby, Oshawa, Ajax, Courtice, Bowmanville, Port Perry, and Port Hope, with two Whitby locations for faster response across the region.

Why Durham Region Homeowners Choose Walchuk

4.8 stars across 136 Google reviews and 5.0 stars across 30 HomeStars reviews, close to 15 years in business, and a one-year workmanship guarantee on every job. Read what your neighbours are saying in our customer testimonials.

Frequently Asked Questions

How do I know if I should repair or replace my air conditioner? It depends on the age of the unit, how much the repair costs relative to a new system, and how often it's been breaking down. We diagnose first and recommend based on what we actually find, not what's easiest to sell. See our full guide on repair vs. replace for more.

What are the most common signs an air conditioner needs repair? Weak or warm airflow, ice forming on the unit or refrigerant lines, unusual noises, short cycling, rooms that stay humid even when the AC is running, and a spike in your summer electricity bill. See our full breakdown in common air conditioner problems.

How much does air conditioner repair cost in Whitby or Durham Region? It depends on what's actually wrong, from a simple part replacement to something more involved, so there isn't one number that fits every call. We diagnose first and give you a clear price before doing any work.

What SEER rating should I look for in a new air conditioner? A higher SEER rating means lower cooling costs over the life of the system, though the right number for you depends on your home and budget. Our SEER and HSPF explainer breaks down what the ratings actually mean for your bill.

Is a heat pump better than a traditional air conditioner? A heat pump handles both cooling and heating in one system, while a traditional AC only cools. Which makes more sense depends on your home, your current heating setup, and available rebates. See our comparison of air conditioners versus heat pumps for a fuller breakdown.

Is Walchuk Heating & Cooling licensed and insured? Yes. We're TSSA licensed (#000229172), HRAI registered (#114449), and WSIB insured (#5318422), and we're BBB accredited, with close to 15 years serving Durham Region.

Does Walchuk offer emergency air conditioner repair? Yes, we offer 24/7 emergency service, which matters most during the hottest stretches of summer when a breakdown can't wait.

Does Walchuk service air conditioners outside Whitby? Yes. We service Whitby, Oshawa, Ajax, Courtice, Bowmanville, Port Perry, and Port Hope, with two Whitby locations for faster response across Durham Region.

Call 905-622-5435 or contact us for air conditioner repair, installation, or maintenance in Whitby and Durham Region.