Fast service — Laval, Montreal, South Shore & Lanaudière
Prepare Your AC Before the Heat Wave | CHAUFROI
Air Conditioning

How to Prepare Your Air Conditioning Before the Heat Wave

June 20253 min
How to Prepare Your Air Conditioning Before the Heat Wave

Quebec heat waves can hit hard and fast. If your air conditioning isn't ready, you risk a breakdown at the worst moment. Here's how to prepare your cooling system before intense heat arrives.

Don't Wait for the First Hot Day

HVAC technicians are extremely busy during the first heat waves. Prepare your system in May or early June to avoid wait times.

7 Steps to Prepare Your Air Conditioning

1. Clean or Replace Filters

Clean filters are the foundation of an efficient system. A clogged filter can reduce airflow by 15 to 20% and force the compressor to overheat. Replace them before the season.

2. Clear the Outdoor Unit

After winter, vegetation may have grown around the unit. Trim shrubs, remove leaves and ensure 24 inches of clearance all around for proper airflow.

3. Inspect Ducts and Insulation

Damaged or poorly insulated ducts can lose up to 30% of cooling capacity. Check for leaks, holes or tears in insulation.

4. Test the System Before the Heat

Don't wait for the first 35°C day to test your AC. Turn it on a week early to detect any performance issues.

5. Check Refrigerant Level

A system with insufficient refrigerant cannot cool effectively. This check must be performed by a certified technician (regulated handling).

6. Program the Thermostat Smartly

Program your thermostat to start cooling before you return home. Avoid extreme temperature swings that overwork the compressor.

7. Schedule Professional Maintenance

A pre-summer preventive maintenance visit includes checking all components, coil cleaning and performance optimization. It's the best investment for a worry-free summer.

Residential air conditioning

A well-maintained system consumes up to 25% less energy

Heat Pump vs Traditional Air Conditioner

If you're looking to replace your old AC before summer, consider a heat pump. It cools just as effectively as a traditional air conditioner but also provides heating down to -30°C. With Hydro-Québec and Rénoclimat subsidies available, the cost difference is often minimal.

💡 CHAUFROI Tip

Install a windbreak or awning to protect your outdoor unit from direct sunlight. A compressor in the shade can be up to 10% more efficient.

Summer-Ready with CHAUFROI

Preventive maintenance · Replacement · Installation · RBQ certified technicians

Frequently Asked Questions

Request Your Free Quote

Fill out the form and an expert will contact you shortly

💰 Several of our systems are eligible for Hydro-Québec subsidies under the LogisVert program. Our team guides you through every step to maximize the financial assistance you may be entitled to.

Learn more
base44
Edit with Base44