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What Is Duct Sealing and What Are the Signs Your Staunton, VA, Home May Need It?

By All-Temp Heating & Cooling

Date Published: November 14, 2025

Your HVAC system relies on ductwork to get climate-controlled air to every corner of your home. So, you can imagine just how much trouble that causes for the equipment if there’s ever a leak.

Many homeowners don’t even know that leaky air ducts can be an issue, let alone that duct sealing can mean better comfort and lower utility bills. Take a closer look at what a duct sealing service involves and which situations call for scheduling it.

How Does Professional Duct Sealing Work?

Sealing air ducts involves an HVAC professional locating and closing any leaks or gaps hiding along your ductwork. DIY options like using duct tape don’t have any lasting impact and can still cause air to escape. Professionals use special materials that coat the entire inside of the ductwork, ensuring the leak is sealed from the inside out.

This method leads to a long-lasting, air-tight seal that helps ensure the air your system heats or cools gets to its destination. Otherwise, this air can escape to all kinds of places, like crawl spaces or attics, where it’ll go to waste.

The EPA suggests that up to 30% of energy consumption can be lost through leaky ducts, so fixing this problem can mean a significant increase in your home’s comfort and energy efficiency.

Air duct sealing services aren’t standard within most homeowners’ maintenance routines. It’s worth asking your HVAC technician if you’d benefit from this service the next time you book your annual tune-up, even if you don’t immediately suspect you have any issues.

What Are the Signs You Have Leaky Air Ducts?

Rising energy bills are often the first sign that you need duct sealing. Any sudden spike in usage or cost without a secondary explanation merits calling an HVAC professional. Even if you don’t have leaky air ducts, a technician can still help you get to the bottom of the issue and improve your system’s efficiency.

Another sign would be having noticeably warmer or cooler parts of your home. This could indicate that while the climate-controlled air might be getting to some areas, a leak in your ductwork is causing inconsistency.

Your HVAC system may also be telling you it’s leaking if it’s emitting a faint hissing or whistling sound. It’s always a good idea to contact an HVAC technician any time you hear strange sounds from your unit, but this specific sound could be coming from the pressurized air escaping through small gaps in your ductwork.

Book Your Air Duct Sealing Service Today

Fixing leaky air ducts is a simple and effective way to take control of your energy bills and keep your family comfortable through every season. The pros at All-Temp Heating and Cooling have been solving HVAC problems for Virginia homeowners for over 17 years. We can evaluate your property’s specific needs and recommend the next steps.

Contact us to learn more about our process or schedule service today.