MARYLAND & DC

(301) 338-6748

VIRGINIA

(703) 289-0886

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We're excited to welcome Nice Heating and Air to the Michael Bonsby family!

Learn more about the Partnership here

Duct Sealing

Michael Bonsby HVAC, Plumbing & Electrical Duct Sealing in Maryland & DC

Heating and air conditioning systems use air ducts to transfer the heated or cool air throughout the home. However, after years of wear and tear, you could have ducts that are leaking or cracked. When this happens, air can escape—which causes your HVAC system to work harder than it should, as well as many other dangers.

If your ducts are drafty and need to be sealed, contact the HVAC experts at Michael Bonsby HVAC, Plumbing & Electrical. Give us a call at 301-245-2008 or schedule service online!

Schedule Service Today!

Signs of Leaking Air Ducts

Because ducts run through basements, floors, and walls, it can be difficult to know when your air ducts are leaking. However, there are several signs to look for if you believe you need duct sealing. If you notice any of the following signs, call an expert for duct sealing.

  • Poor comfort – If you notice the air in your home is more stuffy than normal, certain rooms are a different temperature, or your home is simply not reaching a desired temperature, the comforting air from your HVAC unit could be leaking through your ducts.
  • Strange smells – If you notice strange smells coming from your air vents, it could be because harmful chemicals are leaking in your air ducts.
  • Higher energy bills – Do you feel like your utility bill is going up, but you haven’t changed the thermostat and the weather hasn’t been significantly different? It could be because the air from your heating and cooling unit is escaping through your air vents, which causes your heating and cooling unit to work harder.
  • Hear or feel air in the basement – The largest section of air ducts are usually stored in the basement. If you feel or hear air escaping through your ducts, it could be time to call a professional for duct sealing.

Dangers of Leaking Air Ducts

If your air ducts are leaky and you are trying to avoid scheduling a repair, you could be causing more harm than good. When ducts have exposure to the outside air, mold, mildew, bugs, and rodents have access to get inside your ducts. When this happens and your HVAC unit turns on, you are spreading these particles throughout your home—which results in lower air quality and is harmful to you and anyone who breathes it in.

Don’t let you or your family breathe in harmful particles. Schedule duct sealing today!

Schedule Duct Sealing Service with Michael Bonsby HVAC, Plumbing & Electrical

If you are in the Maryland or Washington, DC area and are in need of duct sealing solutions, there is no other name you need to know other than Michael Bonsby HVAC, Plumbing & Electrical. For more than 20 years we have been a leader in the MD and DC area with our remarkable HVAC services, including:

Contact us online or give us a call to have your ducts sealed today!

Michael Bonsby HVAC, Plumbing & Electrical services the following areas:

MARYLAND: Bethesda, Boyds, Chevy Chase, Clarksburg, Clarksville, Damascus, Darnestown, Derwood, Ellicott City, Gaithersburg, Germantown, Glenelg, Kensington, Laytonsville, Montgomery Village, Mt. Airy, North Bethesda, North Potomac, Olney, Potomac, Rockville, Silver Spring, Urbana

WASHINGTON, DC

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Two for the price of One!

AC & Furnace Tune-Up for only $89
REQUEST SERVICE
Expires 12/30/2025
Other restrictions may apply. Cannot be used in combination with any other offer. Valid on one system only, excludes ductless and boilers.©2026 Michael Bonsby

Furnace Tune-Up for

only $69
REQUEST SERVICE
Expires 12/30/2025
Other restrictions may apply. Cannot be used in combination with any other offer. Valid on one system only, excludes ductless and boilers.©2026 Michael Bonsby

any plumbing repair over $350

Free Hose Bib Winterization with
REQUEST SERVICE
Expires 12/30/2025
Other restrictions may apply. Cannot be used in combination with any other offer. Valid with a plumbing repair of $350 or more.©2026 Michael Bonsby
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Proudly Serving Maryland, DC & Northern Virginia
Bethesda, Boyds, Chevy Chase, Clarksville, Damascus, Darnestown, Derwood, Ellicott City, Gaithersburg, Germantown, Glenelg, Kensington, Laytonsville, Montgomery Village, Mt. Airy, North Bethesda, North Potomac, Olney, Potomac, Rockville, Silver Spring, Urbana, Washington, DC
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