[BACK]
Preventing HVAC Problems in Ontario Winters

Ontario winters can be extremely demanding on home heating systems.
With temperatures regularly dropping below freezing, HVAC systems often run for long periods just to maintain a comfortable indoor temperature.
Without proper care, this constant use can lead to unexpected breakdowns, reduced efficiency, and expensive repairs.
Taking preventive steps before and during winter can help homeowners avoid many of the most common HVAC problems.
Regular maintenance and a few simple habits can go a long way toward keeping your heating system reliable throughout the cold season.
Schedule Annual Furnace Maintenance
One of the most effective ways to prevent HVAC problems is scheduling professional furnace maintenance before winter begins.
During a maintenance visit, an HVAC technician inspects the entire system to make sure it is operating safely and efficiently.
A typical inspection includes checking burners, cleaning internal components, testing safety controls, and ensuring proper airflow.
Small issues that might otherwise lead to major breakdowns can often be identified and fixed early during these routine inspections.
Annual maintenance helps extend the lifespan of the furnace and keeps it operating at peak performance when it’s needed most.
Replace Furnace Filters Regularly
A dirty furnace filter is one of the most common causes of heating problems.
When filters become clogged with dust and debris, airflow through the system becomes restricted.
This forces the furnace to work harder to circulate warm air throughout the home.
Restricted airflow can lead to overheating, poor heating performance, and higher energy consumption.
In some cases, it may even cause the furnace to shut down as a safety precaution.
Homeowners should check their furnace filter regularly and replace it every one to three months during the winter heating season.
Keep Air Vents and Registers Clear
Proper airflow is essential for an HVAC system to operate efficiently.
When air vents or registers are blocked by furniture, rugs, or other household items, warm air cannot circulate properly throughout the home.
Blocked vents can lead to uneven heating and place additional strain on the furnace.
Ensuring that vents remain open and unobstructed helps maintain consistent airflow and improves overall heating performance.
This simple step can make a noticeable difference in comfort during the winter months.
Check and Maintain the Thermostat
The thermostat acts as the control center for the entire heating system.
If it is not functioning correctly, the furnace may not operate as expected.
Homeowners should verify that the thermostat is set to the correct temperature and heating mode.
If the system seems to turn on or off at the wrong times, the thermostat may need recalibration or replacement.
Upgrading to a programmable or smart thermostat can also improve efficiency by automatically adjusting temperatures based on daily schedules.
Seal Air Leaks Around the Home
Heat loss is a major issue during Ontario winters.
Small air leaks around windows, doors, and poorly insulated areas can allow warm air to escape while letting cold air enter the home.
When this happens, the HVAC system must run longer to maintain the desired indoor temperature.
Over time, this extra workload can increase energy costs and strain heating equipment.
Sealing gaps with weatherstripping or caulking and improving insulation can help reduce heat loss and ease the workload on the heating system.
Keep Outdoor HVAC Components Clear
For homes that use heat pumps or have external HVAC components, keeping outdoor units clear of snow, ice, and debris is essential.
Snow buildup can restrict airflow and reduce the efficiency of the system.
After heavy snowfall, homeowners should check outdoor units to ensure they remain unobstructed.
Maintaining proper clearance around the unit allows it to operate more effectively throughout the winter.
Pay Attention to Unusual Warning Signs
HVAC systems often provide warning signs before a major failure occurs.
Strange noises, uneven heating, higher energy bills, or frequent cycling can all indicate potential problems.
Ignoring these early signs can lead to more serious and costly repairs later on.
If a heating system begins behaving differently than usual, scheduling a professional inspection can help identify and resolve the issue before it worsens.
Avoid Overworking the Heating System
During extremely cold weather, homeowners sometimes raise the thermostat significantly to warm the house faster.
However, this does not actually heat the home more quickly and may cause the system to run longer than necessary.
Maintaining a consistent thermostat setting allows the heating system to operate more efficiently and reduces unnecessary strain.
Even small adjustments to temperature settings can help balance comfort and energy usage.
Final Thoughts
Ontario winters place significant demands on residential HVAC systems.
Preventive maintenance and simple household practices can help homeowners avoid many common heating problems during the coldest months of the year.
By scheduling regular furnace maintenance, replacing filters, maintaining proper airflow, and addressing small issues early, homeowners can keep their heating systems running reliably all winter long.
Proper care not only improves comfort but also helps reduce energy costs and extend the lifespan of HVAC equipment.
Very impressed with this company. They show up on time , kept my place clean and after they left it looks like they were never there. Very professional team. Those people know what they doing . Their installation was on the highest standard. They are very knowledgeable especially they're worker Peter. I strongly recommend this company to everybody. After the installation I receive the call making sure I'm satisfied with their products and their job. Bravo!!!
Greg and his brother were referred to us by a friend. They arrived when they said they would, did an exceptional job and left the place as tidy or tidier then they found it. Their professionalism is only surpassed by their kind and friendly demeanor. Even after several calls to help me with my high tech thermostat I feel that I could always call with any concern (No one responds to my texts as quickly as Greg) and have a friendly helpful response. I found out their grandfather started the company and now as a 3rd generation company, they are doing their grandfather proud. I would highly recommend Twintech over any other hvac company out there.
Thanks to the guys at Twintech Heating for a great job installing a new hot water tank. They set a time and day to remove the old tank and install the new one. They were on time and had the work done quickly and cleaned up after they were finished. Excellent work and great value.
In November, we contacted Twintech for a quote on a high efficiency furnace plus installation. Dave, the sales representative for the company was very friendly and informative. Upon arrival at our home, he willingly showed us his company licenses, clearly explained the operation of a high efficiency furnace and answered all our questions to our satisfaction. As well, Dave was the only sales representative that we contacted that was willing to make the arrangements for an energy audit. For us, this was a big plus as we found the government rebate program somewhat confusing to navigate. The furnace was installed on the date that was arranged in an efficient and professional manner by Greg (the owner) and Peter. Both men worked diligently, throughout a long day to complete the job and upon finishing, left the job site immaculate. When a neighbour raised concerns about the furnace venting location, Greg located an alternative location and resolved the situation with diplomacy. We chose the Napoleon furnace for its excellent warrant;y on the heat exchanger and because it was made in Canada! In addition, to the furnace warranty, Twintech offered us a 5 year warranty on labour which speaks to the quality and pride this team has in their workmanship. It has been over a month now (with some of the coldest January days on record) since we have had the furnace installed. The furnace runs quietly and distributes heat more evenly throughout our 90 year old Toronto home. We can't speak highly enough of the Twintech team and are very satisfied with their workmanship and job ethics. We have no hesitation about recommending them.
What more could you ask for! Grant and Greg Dainty provided a professional,diligent and thorough approach to the installation of my furnace. I would highly recommend there services.
Last week our Furnace failed overnight. We called Twintech to help us get it running again. They did a really thorough check on it, and got it running in less than an hour. Given that it was an old Furnace (+20 years old), we were giving two options: repair it or replace it. Instead of doing a repair on it that could break in a week or two, they recommended us to change it. I like that they were honest on the recommendation, not forcing a new furnace on us. At the end we went with a new Furnace. Twintech solutions service & salesman gave us recommendation on the size of the unit and many options that could work for our home. They ended up doing an excellent work in our furnace, replacing the filter to a better option and replacing some pieces that had water damage. They cleaned after themselves and leave everything even better than what they found. They even went far and beyond tiding up the hose connections that we had on the basement.
I am in the process of finishing my basement and wanted to make sure I got the low hanging duct work fixed in advance. After reviewing 5 quotes I selected Twintech to award the contract to. The price was competitive however what won me over was Grant's (co-owner) attention to detail and his ability to focus on what my goals and priorities were for the project. His team completed the job over 3 days as there was significant duct work changes and the relocation of all of the equipment. They also completed the job with little downtime so we weren't left overnight without heat during freezing winter temperatures.
My father woke up to no heat one Saturday morning. We had a few names that friends had recommended but while checking out the companies' ratings on HomeStars, we found Twintech with great ratings too. The other companies either didn't get back to us or didn't have time to come at such short notice. TwinTech made the time in their schedule for what they judged to be an emergency: no heat in the home of an elderly person. At no extra fee for a short notice, weekend visit. They recommended an upgraded furnace unit and explained that we would qualify for a rebate that would bring the price down to that of a lower model. They set us up with the rep from the MNR that covers the rebate so that we didn't have to deal with the paperwork & phone calls ourselves. Installation was quick, efficient, & smooth. We were so pleased with their service we ordered a new water heater too. Both are working great (efficient & quiet!) & my father is safe & comfortable. We can't say enough about how pleased we are with their service. We have already recommended them to others.
Twintech Heating & Cooling. I just want to say thanks for helping me . My Furnace stopped working. And l phone Dave Getgley he set me up with Greg. What an amazing team they did a great job in setting me up with a new Furnace. Anyone that needed a new Furnace these are the guys to call. Thanks again for a job well done.
Our home has had poor heating and air conditioning the past couple of years. Dave recommended a Goodman solution with more power than we had. Grant and Greg installed the units in late November. Heating is better than ever. We have a warm home again and look forward to the winter. Can't wait to see how the AC runs in 2018. Job was super clean and professionally done. Highly recommended.
Related Links:
pickering hvac prices, oshawa hvac furnaces, ajax hvac repair, hvac repairs, pickering hvac furnace, hvac prices, home hvac, heat pump hvac system, hvac furnace, hvac contractors, hvac repair service, commercial-hvac-service,
We are very happy to recommend this company to everyone. Our furnace broke down on Sunday morning. We phoned them and before noon Grant the owner showed up. He worked on the furnace for about a hour not wanting to give up to fix the problem. The furnace was 17 years old. I was the one talking about replacing it. End result was the next day it was all done. On the Sunday Bob came over with heaters to warm up the house. We decided to replace the water heater at the same time. Thanks Grant for the excellent work. Thumbs up.
Right on time. Explained how to work the HRV in a different way so the house would not be so dry. Changed my whole house water filter for me as well. Friendly, helpful, caring service!
Very pleased with the professional service that TwinTech Heating and Cooling provided in replacing my furnace. I got several quotes from different service providers. Their price was excellent and they explained the features very well. We are very glad we went with TwinTech and highly recommend their services.
We were new homeowners in need of a second opinion. TwinTech Heating & Cooling were Amazing and professional. Very knowledgeable and great service all around. Recommend to anyone looking for honest and reliable services. Treated with respect and care. Thank you Greg, Mitch and Bob!
TwinTech is an excellent and honest company! I called them for a second opinion after being told by another company that I needed to replace my furnace. Turns out this was not the case at all! I did not need a new furnace. TwinTech did not push to make an unnecessary sale and saved me from a huge expense. Bob and Mitch were extremely professional and above all honest! I definitely recommend TwinTech!
When your heating or cooling system fails unexpectedly, it’s more than an inconvenience—it can quickly become a safety issue. Whether it’s a furnace breaking down during a cold snap or an air conditioner failing in extreme heat,
Read MoreHeat pumps can offer several benefits to improve your home's heating, cooling, and overall energy efficiency. Here are some ways heat pumps can enhance your home: Energy Efficiency: Heat pumps are highly energy-efficient because
Read MoreThere are a few signs that you might be overusing your air conditioner. Here are some things to consider: 1. Constant Running If your air conditioner seems to be running non-stop, especially when it’s not particularly hot outside, you
Read MoreMany homeowners assume heat pumps struggle when winter temperatures drop—but modern cold-climate heat pumps are specifically engineered to perform in extreme cold. Across Ontario and other northern regions, today’s heat pump technology
Read More