$49 / month O.A.C Including Install
$49 / month O.A.C Including Install

gas furnace problems

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gas furnace problems
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Winters in Canada can be tough, and they can be even less fun if you have gas furnace problems. We rely on our furnaces to keep us warm and cozy no matter how frosty it gets outside. While issues can be big and require a complete replacement of the furnace, often issues are caused by smaller things. Here are some of the common furnace problems:


- Dirty filters
- Ignition or pilot control problems
- Cycling between on and off
- Malfunctioning thermostat
- Broken blower belt
- General mechanical problems
- Cracked heat exchanger


Many of these problems can be prevented with simple maintenance, such as making sure your filters are changed and getting regular furnace maintenance. At Twintech, we've been fixing gas furnaces in the GTA for over 30 years, so whether you need a simple furnace check-up before winter hits or a bigger repair, call us for quick, easy and simple service! Even if your furnace breaks down unexpectedly in the middle of winter, if we can, we'll be there the same day to install a new one! Just ask Anna from Ajax:


"On one of the coldest days of winter, our furnace stopped working. Grant showed up a short time later and a new furnace was installed the same day with no troubles at all. Best of all, we received a higher-end furnace than what was offered by our previous company and at a cheaper price."


So if you find yourself stuck in the cold this winter with gas furnace problems, just give Twintech Heating & Cooling a call at 1-844-894-6832 for a free consultation and quote and quick, easy repairs!


gas furnace problems


See What Our Customers Are Saying:

by Robert Rogers on Twintech Heating and Cooling

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.

by Robert Mizuno on Twintech Heating and Cooling

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!

by Ruth on Twintech Heating and Cooling

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!

by Anna Chin on Twintech Heating and Cooling

Amazing experience with TwinTech Heating & Cooling! Their team was professional, knowledgeable, and efficient from start to finish. They installed my new furnace quickly and left everything spotless. The technicians took the time to explain everything and made sure I was comfortable with the system before they left. Great customer service and fair pricing. I highly recommend them for anyone needing HVAC services!

by Connor Agnew on Twintech Heating and Cooling

Great experience all around. Bob was sharp and easy to talk to, and Greg handled the installation perfectly. Would hire them again in a heartbeat.

by Trevor Owens on Twintech Heating and Cooling

I returned from vacation to find my AC unit on the Fritz. After calling way too many places I connected with TwinTech. I’ve used the company in the past for my furnace so I was happy when I recognized Greg at my front door. He’s great and the service is always top notch. I’d highly recommend using twintech for honest, superior service in the Durham region. Thanks!

by Nicole Alain on Twintech Heating and Cooling

I called Twin Tech when my air conditioning stopped working. Greg came over to diagnose the issue - the same day. He was able to diagnose the issue and resolve it quite quickly. Although it was a quick fix, Greg was very thorough in explaining the issue and provided great advice. Not to mention, I felt very comfortable having Greg in my home - which I consider very important when hiring a service provider. Twin Tech will be my go-to from now on. Thank you!!

by Courtney Parkes on Twintech Heating and Cooling

Just hired TwinTech Heating & Cooling to do an A/C Unit removal & reinstall to allow for landscaping access on the side of my house, and they were wonderful!
Bob, Greg & Mitch make a great team! Quick appointment times, super knowledgeable, expert troubleshooting capabilities & very customer service oriented.
I would highly recommend them for all of your HVAC needs! Great job guys!!

by Jacqueline Graham on Twintech Heating and Cooling

Twintech Heating & Cooling installed my furnace in 2022 and in fall of 2023 installed my Panasonic Heat Pump. Greg and Mitch did a great job. Helped me through the rebate process. Super happy with the Heat Pump. Only used my furnace 5 times this winter. Energy bills lower, carbon emissions lower.Thank you Twintech. I recommend highly!

by Bill Grainger on Twintech Heating and Cooling

Just had a new furnace installed by Twintech. I can’t express how great these guys are at what they do. From the sales to installation they were professional all the way. Very reasonable pricing and courteous during the installation and willing to answer any questions I had. Highly recommended !!!

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gas furnace problems

See What Our Customers Are Saying:

by Robert Rogers on Twintech Heating and Cooling

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.

by Robert Mizuno on Twintech Heating and Cooling

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!

by Ruth on Twintech Heating and Cooling

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!

by Anna Chin on Twintech Heating and Cooling

Amazing experience with TwinTech Heating & Cooling! Their team was professional, knowledgeable, and efficient from start to finish. They installed my new furnace quickly and left everything spotless. The technicians took the time to explain everything and made sure I was comfortable with the system before they left. Great customer service and fair pricing. I highly recommend them for anyone needing HVAC services!

by Connor Agnew on Twintech Heating and Cooling

Great experience all around. Bob was sharp and easy to talk to, and Greg handled the installation perfectly. Would hire them again in a heartbeat.

Is My Furnace Heating Unevenly?

  • SUBMITTED BY:
  • TWINTECH HEATING & COOLING
  • - February 4, 2025

If your furnace is heating your home unevenly, it could indicate a problem with the system or other factors affecting heat distribution. Here are some common causes and potential solutions: 1. Clogged or Dirty Air Filters Cause: A dirty filt

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My Furnace Does Not Produce Enough Heat

  • SUBMITTED BY:
  • TWINTECH HEATING & COOLING
  • - December 29, 2024

If your furnace is not producing enough heat, there could be several potential issues causing the problem. Here’s a step-by-step guide to help you identify and resolve the issue: 1. Check the Thermostat Settings Ensure it's set t

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Internal Furnace Issues

  • SUBMITTED BY:
  • TWINTECH HEATING & COOLING
  • - October 9, 2024

When addressing internal furnace issues, it's important to recognize common problems and their potential causes. Here’s a breakdown of some key internal furnace issues and how they can be resolved: 1. Clogged or Dirty Filters Cause

Read More

What Parts of My AC Can Be Replaced?

  • SUBMITTED BY:
  • TWINTECH HEATING & COOLING
  • - April 8, 2024

In an air conditioning system, various components can be replaced depending on the type of issue you're experiencing or the maintenance required. Here are some common parts that can be replaced in an AC system: Air Filters: These should

Read More