Insights > Category > Posted: 2025-Jan-15, Updated: 2025-Jan-15

Swinging patio doors & the effect of cold Winter days

Swinging patio doors are a beautiful and functional addition to any home, but winter can bring unique challenges that affect their performance and durability. From drafts to ice buildup, understanding these issues and how to address them is essential for maintaining comfort and energy efficiency during the colder months.

Discover the typical winter challenges concerning swinging patio doors and learn practical tips to keep them in excellent shape throughout the season.

Drafts and heat loss

Over time swinging patio doors wear and tear on their seals and weatherstripping can lead to gaps between the door and the frame. These gaps cause uncomfortable drafts and significant heat loss. The result? Higher heating bills and a less cosy living space during the winter months.

Regularly inspect the weatherstripping along the door's edges for signs of wear, cracking, or detachment. Replace worn-out strips promptly to maintain a snug seal against cold air.
Use adhesive foam tape or flexible caulking for minor gaps along the door frame or threshold for a temporary seal.
To block cold air from entering underneath, place a door snake or draft stopper at the base of the door. As a DIY solution, use a rolled towel or tube of fabric.
To add an extra layer of protection, hang insulated curtains or blinds on or near your swinging patio doors to trap warmth inside and keep cold air out.

Condensation and ice buildup on glass

Cold weather often causes condensation on the interior side of swinging patio door glass. When temperatures drop, this moisture can freeze into ice, obstructing your view and potentially leading to mould and mildew growth. Left unchecked, these problems can damage the door's materials.

Although humidity levels in winter usually drop, some homes experience high humidity. Proper humidity levels reduce the moisture that condenses on cold surfaces like glass.
If you don't want to replace the door with a new one, consider replacing the glass with insulated or low-emissivity (low-E) glass if possible.
Regularly clean the glass and surrounding frames to remove dust, dirt, and other particles that attract moisture.
Use ceiling fans or open interior doors to encourage better airflow around the door.

Ice buildup on frame and door sweep

Ice accumulation on the frame and door sweep of swinging patio doors can make operation difficult and even lead to long-term damage if not addressed. This is especially common in winter, as fluctuating temperatures cause snow to melt and refreeze around the door.

After snowfalls, promptly clear snow and ice from the area surrounding the door, focusing on the threshold and base to minimise the chance of refreezing that leads to ice buildup.
Apply silicone-based lubricants to the door hinges to ensure smooth operation and help prevent freezing by reducing moisture retention in critical areas.
Use a de-icing spray or a safe homemade solution (e.g., a mixture of vinegar and water) to melt existing ice. Avoid harsh chemicals that could damage the door finish or weatherstripping.

Warping or damage to frames

Swinging patio door frames can be vulnerable to warping, cracking, or other damage during winter due to extreme cold and fluctuating temperatures, or poor installation. Left unattended, this damage can affect the door's functionality and energy efficiency.

Considering a new door, opt for frames made from durable materials such as fibreglass, vinyl, or aluminium. These materials are less prone to warping and withstand extreme temperature changes.
Proper installation is crucial to minimize exposure to temperature extremes and prevent stress on the frame. Misaligned doors or poorly fitted frames are more likely to develop issues in winter.
Reseal or repaint wooden frames annually to protect them from moisture absorption and temperature fluctuations.

Difficulty with locks and hinges

Freezing temperatures can cause locks and hinges on swinging patio doors to stiffen or freeze completely, making it difficult to open, close, or secure the door. Moisture can seep into the mechanisms, freezing them and potentially leading to long-term damage. Regular maintenance is key to ensuring smooth operation, especially in colder weather.

Apply weather-resistant lubricants to locks and hinges to keep them moving smoothly. Silicone-based lubricants are a good choice, as they resist moisture and provide long-lasting protection.
Protect the locks from direct exposure to snow and moisture by covering them during heavy snowstorms. A small, weatherproof cover can keep the moisture out and reduce the chances of freezing.
If the lock or hinge does freeze, use a lock de-icer spray to melt the ice quickly.
To prevent the lock from seizing up, use the key or inside latch to unlock and lock the door every week or so, even when you're not using the door. This will help keep the mechanism in good working order and prevent it from becoming stiff due to inactivity.

Snow accumulation blocking doorways

Heavy snowfall can easily block access to swinging patio doors, rendering them unusable and potentially causing water damage as the snow melts and refreezes. Over time, this can lead to ice buildup around the door frame, making it difficult to open the door and increasing the risk of moisture-related issues such as rust or water infiltration.

Regularly shovel the area around your swinging patio doors to prevent snow from piling up and blocking the entry. Clear a path in front of, and behind the door to ensure it opens and closes easily.
Ensure proper drainage along the door sweep to prevent water pooling and refreezing near the door.

Warranty coverage

Winter conditions can put a strain on swinging patio doors. Understanding your warranty coverage can protect your door from potential issues caused by cold temperatures, moisture, or ice. Certain conditions may be covered, while others might fall outside the scope of the warranty.

Review the warranty documentation for your swinging patio doors to understand what is covered under winter-related damage. Some warranties may cover issues like seal failure, frame damage, or mechanical malfunctions, while others may have exclusions for damage caused by extreme weather or neglect.
Ensure that your patio doors are properly registered with the manufacturer, as some warranties may require registration within a certain timeframe to be valid. Keeping your registration up-to-date can prevent complications if a claim is necessary.
If winter weather causes issues with your doors, take clear photos and keep detailed records of the problem.
If you're concerned about specific warranty coverage or potential issues, consult with your professional installer or technician.

Need help?

If you’re experiencing persistent issues or need help upgrading to more energy-efficient swinging patio doors, contact Bayview Windows today. Our team of experts can help you find the perfect product to keep your home cosy all season long.

Request information | 613-838-2211 | Request a quote