Can you seal air ducts yourself?

Some homeowners choose duct sealing as a DIY project. Start by sealing air leaks with putty or metal tape and insulate any ducts you can access (such as those in attics, mezzanines, unfinished basements and garages). Never use adhesive tape, as it is not durable. When sealing air ducts, we recommend using a putty sealer.

Ironically, adhesive tape is a poor choice, as it quickly starts to come off. If you prefer to use adhesive tape instead of putty, look for aluminum foil tape specially designed for HVAC. Most homeowners don't think about sealing their home's air ducts, but the process is crucial to maintaining their home's energy efficiency. In general, the best way to seal ducts is to hire a professional to internally seal the entire duct system.

Even perfectly sealed and insulated ducts lose some heating and cooling, especially if they are located in unconditioned areas of the house, such as attics and mezzanines. They will then pressurize the duct system with a fan and use a computer to analyze the data and determine how much air escapes through the ducts. This means that it would take you 3 to 4 years to pay the additional cost of hiring a company like Aeroseal to seal the air ducts. You probably don't need this type of service unless your ducts are very old and difficult to repair or replace.

Service Champions is a professional contractor that carries out duct improvement projects, including sealing, cleaning, installation, repair and maintenance. Professional duct sealing companies use special technology to seal all duct connections from the inside. Either way, having your ducts properly sealed will help you balance the air temperature in your home and improve air quality. Once you know the process and have determined that duct sealing is the best solution for your home, you can decide whether hiring a professional or doing DIY is more your style. Answering all, some, or even one of the above questions in the affirmative is an indication to discuss duct sealing with your local HVAC company.

Duct sealing is one of those projects where homeowners often wonder if they can do it themselves or if they need to hire a professional. If you're looking for more information on duct sealing for your home or business, contact the professionals at Service Champions. According to the EPA, “20 to 30 percent of the air that passes through the duct system is lost due to leaks, holes and poorly connected ducts.

Adele Mikell
Adele Mikell

Proud travel lover. Hardcore coffee practitioner. Evil tv guru. Devoted twitter ninja. Hardcore zombie trailblazer. Hardcore beer lover.

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