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Furnace: Blocked Ducts?

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Furnace: Blocked Ducts?

Posted On: January 2, 2025

Furnace: Blocked Ducts?

Blocked furnace ducts can cause significant issues for your heating system and the comfort of your home.


Here's what you need to know: Symptoms of Blocked Ducts Uneven Heating: Some rooms may be warmer or cooler than others.


Reduced Airflow: Weak airflow from vents can indicate an obstruction.


Increased Energy Bills: Your furnace works harder to push air, consuming more energy.


Strange Noises: Whistling or rattling sounds might signal airflow issues.


Common Causes Clogged Air Filters: Dirty filters can restrict airflow.


Replace them every 1–3 months.


Debris in Ductwork: Dust, pet hair, or even pests can block ducts over time.


Damaged Ducts: Holes or disconnected sections can impede airflow.


Closed or Blocked Vents: Ensure vents are open and unobstructed by furniture or curtains.


Why Addressing Blocked Ducts Matters Improves Efficiency: Clear ducts allow your furnace to heat effectively.


Extends Furnace Lifespan: Reducing strain prevents premature wear.


Enhances Indoor Air Quality: Removing blockages eliminates contaminants.


How to Resolve Blocked Ducts Check and Replace Filters: This is the easiest and most frequent maintenance task.


Inspect Vents and Registers: Clear away obstructions and ensure vents are fully open.


Professional Cleaning: Hire HVAC specialists to clean ducts and inspect for deeper issues.


Seal Leaks: Use duct sealant or have professionals repair damaged sections.


Preventive Tips Schedule regular HVAC maintenance.


Keep a clean home to reduce debris entering the system.


Install a high-quality air filter suited to your home’s needs.



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by Floreene in Whitby on Twintech Heating and Cooling

My old furnace had finally broken down for the last time when contacted twintech to have a new furnace installed…They were prompt, knowledgeable and very reasonably priced. They did such a great job i tell all my friends and family about this company.

by Damien McIsaac. Ajax on Twintech Heating and Cooling

To whom it may concern, I recently had TwinTech (Greg and Grant Dainty) replace my furnace and service both my gas fireplaces and air conditioning unit. They were professional, courteous and very fair in their pricing. I would gladly recommend TwinTech to anyone needing work done. I can be contacted at 905-626-XXXX.

by Blair N. - Toronto on Twintech Heating and Cooling

My Fiancé and I have relied on Twintech Heating and Cooling now for the better part of the last 10 years. In that time, Greg has installed a furnace, an air conditioner, and a heat-pump at our residence in Toronto. In each instance Greg and his team were a pleasure to deal with. They were courteous and professional throughout the whole process and the quality of their work is first rate. Our experiences have always been extremely positive and we have referred his services numerous times to our friends and family. Without hesitation, I would recommend Greg and TwinTech Heating and Cooling to anyone looking to service or replace their existing heat/AC equipment

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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.

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