Air ducts are an often forgotten—yet crucial—part of your home. They are responsible for transporting conditioned air from your HVAC unit into each room of your home and can be vulnerable to leaks. In fact, the average home duct system loses 20-30% of its energy through cracks, gaps, and poorly insulated ductwork. If you’ve noticed inefficiencies in your HVAC performance—like high utility bills—your home may benefit from duct sealing services from Home Energy Medics.

What You Should Know About Duct Sealing:
  • What is Duct Sealing?

Duct sealing is like air sealing and insulation, but only focused on the network of metal units that make up your duct system. Your ducts are usually in your walls, crawl space, basement, or attic and are most efficient when they are protected from outdoor temperatures and all their gaps are sealed.  

  • Signs Your Duct System Has a Leak

Since your home’s ductwork is most likely located behind the walls, in the ceiling, or under the floor, it can be difficult to find leaks. Look out for high energy bills, condensation on your ducts, cold spots on your walls, humming noises, and decreased heating & cooling performance as signs your duct system has a leak. 

  • Benefits of Duct Sealing

Sealing your ducts stops conditioned air from escaping and pollutants from entering the air you breathe. Duct sealing can provide many benefits like: more home comfort, lower energy bills, improved HVAC efficiency, and better indoor air quality. 

  • How Leaky Ducts Can Harm Your Health

Many DC homeowners suffer from what they think to be allergies, yet the problem actually originates from the air they're breathing at home. The Environmental Protection Agency (EPA) reports a link between indoor air quality and various health effects, including eye and throat irritation, headaches, dizziness or fatigue, and even long term respiratory disease. 

  • Duct Sealing Improves Indoor Air Quality

In many cases, indoor air quality can be improved by cleaning and sealing the ducts in a home. To understand leaky ducts, consider the analogy of a hose in the basement pushing water toward the roof. If the hose was full of holes the entire way up, the pressure at the top would be nowhere near that in the basement. The same goes for leaky ducts, and the byproducts can be harmful to you and your family.

  • Find Leaks With a Duct Evaluation

At Home Energy Medics, we know that indoor air quality is one of the most important things that residents can focus on. A professional duct evaluation is the first step toward fixing whatever issues may exist. We use state-of-the-art Duct Blaster technology to evaluate the performance of your ducts and get a clear view of the areas that need improvement. We can also help save you money through quicker, less expensive pressure pan measurements.

  • Solving Your Ventilation Problems For Good

After the trained professionals at Home Energy Medics evaluate your home, we can clean and seal your ducts quickly and effectively. We also offer a full suite of ventilation upgrade services to ensure your family is breathing healthy, safe air. From heat recovery ventilators (HRVs), which capture the heat from out-going air and transfer it to incoming air, to simple exhaust vans, Home Energy Medics has you covered.

Duct Sealing Can Improve Your Comfort 

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Looking for Duct Sealing? Did you know...

There is a substantial amount of energy loss when your HVAC system works overtime to make up for leaks and gaps in your ductwork. In addition to increased energy bills, the unnecessary strain on your system can significantly shorten its lifespan or lead to costly repairs. Air duct leaks can also create indoor air quality issues by allowing dust, allergens, and other pollutants easy access to the air circulating through your home. Having properly sealed ducts keeps these pollutants out of the air you breathe and balances temperatures, leaving your home feeling more comfortable.


The crew did an excellent job. Everyone was so professional (on time, clean workspace, well mannered) they exceeded my expectations.

Zeeye L., Arlington, VA