How Weather Affects Windshield Damage in Newmarket

Posted in Windshield Repair, on August 13, 2026

Newmarket drivers face a full range of weather conditions, from winter snow and summer heat to tornadoes, rainstorms, and everything in between. Southern Ontario’s weather brings freeze-thaw cycles throughout the winter, road salt on Yonge Street and Highway 404, and sharp temperature swings between seasons. None of these conditions are kind to auto glass, especially when a windshield already has a chip or crack. When the weather intensifies, auto glass repair shops tend to see increased demand for windshield repair in Newmarket.

MRM Auto Glass is based in Newmarket and offers 24/7 mobile repair throughout York Region, which matters when changing weather turns a small chip into a larger problem faster than expected.

Here is what to watch for locally and why the timing of your repair can matter as much as the damage itself.

Freeze-Thaw Cycles Can Spread Existing Damage

It is not only the coldest temperature that matters. Repeated movement between freezing and thawing conditions can be especially hard on damaged glass.

Glass contracts in colder temperatures and expands as it warms. When moisture enters an existing chip or crack and freezes, it can place additional pressure on the damaged area. Over multiple freeze-thaw cycles, a small chip may gradually become a longer crack.

Avoid pouring hot water on a frozen windshield or immediately directing the defroster at its highest setting toward cold glass. A sudden temperature change can place additional stress on the windshield.

Road Salt and Winter Debris Can Affect Your Windshield

Road salt helps make winter driving safer, but salt, sand, gravel, and other debris can be thrown toward your windshield by surrounding vehicles. An impact may create a new chip or worsen existing damage.

Grit and moisture can also collect inside a chip, making the area more difficult to clean before repair. Our guide to winter salt and windshield damage explains how road treatments can contribute to pitting, glare, chips, and cracks.

Maintaining a safe following distance, particularly behind trucks and snow-clearing vehicles, may help reduce your exposure to flying debris.

Sudden Temperature Swings Stress Damaged Glass

Newmarket’s spring and fall temperatures can change considerably between daytime and overnight conditions. Summer heat can also warm a parked windshield before the air conditioning begins cooling the vehicle’s interior.

These rapid changes cause glass to expand and contract. An undamaged windshield is designed to withstand ordinary seasonal conditions, but a chip creates a vulnerable point where stress can concentrate.

If a crack begins growing, enters the driver’s field of vision, or reaches the edge of the windshield, schedule windshield repair in Newmarket promptly.

Severe Storms Create Additional Risks

Rain itself does not normally damage an intact windshield, but strong storms can carry branches, gravel, hail, and other debris. Moisture may also enter existing cracks and settle between layers of damaged glass.

If possible, park in a garage or covered area when severe weather is expected. After a storm, inspect your windshield for new chips, cracks, or pitting before returning to regular driving.

Why Waiting Can Lead to Windshield Replacement

A small chip may be repairable when addressed early. Once the damage becomes too large, deep, close to the windshield’s edge, or directly within the driver’s line of sight, replacement may be the safer option.

The right solution depends on the size, depth, location, and condition of the damage. Prompt auto glass repair in Newmarket can help prevent weather, moisture, road vibration, or another impact from making the problem worse.

Mobile Windshield Repair Comes to You

MRM Auto Glass offers mobile windshield repair for customers who cannot safely or conveniently visit our Newmarket shop. When mobile service is available, a technician can come to your home, workplace, or another suitable location to assess the damage.

MRM Auto Glass also offers a lifetime warranty on installations. Contact our team for windshield repair in Newmarket and find out whether your damaged glass can be repaired or requires replacement.