Ontario winters are tough on outdoor HVAC units. Snow, ice, and freezing winds can block airflow and damage parts.
You can prevent problems with simple steps. Our licensed HVAC contractors explain how to winterize your unit and when to call an HVAC company.
Why Does Outdoor HVAC Protection Matter?
Your HVAC unit sits outside year-round. In summer, it works hard to cool your home. In winter, snow and ice put it at risk. Without HVAC snow protection, problems start fast:
- Blocked airflow leads to higher energy bills.
- Heavy ice damages coils and fans.
- Frozen parts shut the unit down.
HVAC ice damage is costly to fix. Sometimes repairs cost as much as replacing the system. That’s why HVAC unit protection should be part of your winter prep every year.
Common Winter HVAC Problems
When you skip outdoor HVAC care, you leave your unit exposed. Here are the top problems that hit outdoor systems in cold weather:
Snow buildup
Piled snow covers the unit and restricts air intake.
Ice on coils
Frozen water blocks heat transfer and strains the system.
Fan damage
Ice jams the fan blades, bending or breaking them.
Rust
Melted snow seeps in and starts to corrode.
Prevent HVAC freezing by staying ahead of these issues. A little attention in the fall saves a lot of stress in the winter.
Steps to Winterize HVAC Units
If you want to cover HVAC in winter, here’s what works best:
Clear space around the unit
Keep at least two feet of space clear of snow, shrubs, or objects.
Install an HVAC snow guard
Guards keep snow drifts from reaching the system.
Shut off the AC
If your system includes central air, switch it off during winter to protect the condenser.
Check drains
Ensure water can escape, so ice doesn’t form at the base.
Use a breathable cover
Never wrap the unit in plastic. Make sure to use a cover designed for HVAC unit protection so air still flows.
These steps are simple, but they go a long way in preventing HVAC ice damage.
Should You Cover HVAC in Winter?
Many homeowners ask this. The short answer: yes, but only with the right kind of cover. A standard tarp or plastic sheet traps moisture, which makes freezing worse. To protect outdoor HVAC units, always use a breathable cover.
Covers designed for HVAC winter prep keep snow and ice out while letting condensation escape. If you’re unsure which one to buy, call an HVAC company. A licensed HVAC contractor can recommend or install the right cover for your system.
DIY vs Professional HVAC Winter Prep!
You can handle basic outdoor HVAC care on your own. Clearing snow, brushing off ice, and using a cover are easy steps. But for full HVAC snow protection, a professional check is smart.
Here’s why:
- HVAC contractors spot small issues before they become big repairs.
- They clean and service the coils, fans, and drains.
- They check refrigerant levels and electrical parts.
- They confirm the unit is ready for freezing temps.
When should you call an HVAC company instead of Handling Things Yourself?
There are certain situations where you need to contact a professional in order to avoid costly mistakes and potential dangers. Here is a list to understand when it’s time to call the experts:
- If you see ice building up on coils or fans.
- If the unit is making strange noises after heavy snow.
- If the airflow feels weak indoors, even though the thermostat is set high.
- If you want a full HVAC winter prep service before the first storm.
Hiring an HVAC contractor is like an insurance plan for your system. You prevent HVAC freezing and keep your unit running without surprises.
Mistakes to Avoid with Outdoor HVAC Care
Even with good intentions, homeowners sometimes make mistakes that hurt their system. Avoid these common errors:
Using plastic covers
They trap water and cause rust. Always use a breathable HVAC cover.
Blocking vents
Never stack firewood, tools, or decorations near the unit. Airflow matters even in winter.
Ignoring small ice
A little frost today can turn into a frozen block tomorrow. Clear it early.
Skipping annual service. Outdoor HVAC care is not enough on its own. Prevent HVAC freezing with professional maintenance.
Piling snow nearby
When shoveling, don’t throw snow against the unit. It melts, refreezes, and causes HVAC ice damage.
Avoiding these mistakes makes HVAC snow protection much more effective.
How HVAC Services Help in Winter
When you book HVAC services before winter, you get peace of mind. Here’s what you can expect from a professional check:
- Inspect and clean the outdoor unit.
- Apply protective coatings to prevent rust.
- Test airflow and drainage.
- Install an HVAC snow guard if needed.
- Recommend covers for better HVAC unit protection.
- Verify electrical safety and heating performance.
Many HVAC companies in Ontario offer seasonal tune-ups. The cost is low compared to fixing HVAC ice damage later.
Protect Your Unit With Don’s!
Snow and ice are hard on outdoor systems, but with the right steps, you can protect outdoor HVAC units and avoid costly repairs. Clear the area around your system, use the right cover, and consider adding an HVAC snow guard. For full peace of mind, hire an HVAC company for HVAC winter prep. At Don’s Heating and Cooling, our professional HVAC contractors will prevent HVAC freezing, protect your system from HVAC ice damage, and make sure your home stays warm all season long.
Don’t hesitate and call us before it’s too late. We help you avoid a frozen unit. Contact our HVAC company today for HVAC services that keep your system safe, efficient, and ready for winter.