The benefits of professional duct sealing extend beyond simply increased comfort that results from ensuring all the conditioned air gets where it’s supposed to go in your home. In a forced-air system, leaky ductwork is a major source of high energy costs, as well as inconsistent temperature control and even poor indoor air quality. In residences more than 10 years old, air leakage due to deteriorated ductwork is common. While the homeowner pays the bill for 100 percent of the cooled or heated air produced by the system, as much as 30 percent of it may be leaking out into the attic, crawl space or inside wall cavities.

A professional HVAC contractor can perform a duct blower test to assess the extent of leakage as well as pinpoint the location of leaks. Utilizing pressure and airflow sensors inside the ducts and a blower to pressurize the system, a computer calculates the amount of air leakage from the ducts. Today, building codes in many municipalities require duct blower tests when new ductwork is installed or a central A/C or furnace is upgraded to a new model.

While the system is pressurized, the technician can inject artificial smoke into the ducts to reveal leaks and other duct dysfunctions that cause loss of airflow. A professional duct sealing procedure usually follows a multi-faceted approach:

  • Collapsed sections of ductwork or those deteriorated beyond repair will be cut out and replaced with newly fabricated ducts.
  • All joints between spans, at elbows and other junctions will be sealed with mastic or metal foil tape, then mechanically secured with metal screws.
  • Where pinhole leaks occur in great number, liquid aerosol sealant can be utilized to coat the interior surface of the duct and restore airtightness.
  • In addition to air loss, ducts routed through unconditioned zones like the attic or crawl space are subject to thermal loss due to the acute temperatures common in those areas. Duct insulation may be recommended in addition to air sealing to prevent heat gain or loss.

For information about professional duct sealing services in the Baltimore area, please contact us at Griffith Energy Services, Inc.

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Dear Customers,

At this time, when the news is dominated by the Coronavirus (COVID-19) health emergency around the world, we wanted to personally reach out and let you know that we are vigilantly implementing enhanced protocols to ensure your safety and the safety of our team.

We are closely monitoring the guidance of the World Health Organization and the Centers for Disease Control regarding the spread of the virus. This is an evolving situation and we will continue to develop and take necessary measures as needed. Our focus is to ensure that we meet customer needs while doing our part to keep you, our employees, and our communities safe.

Here’s what we’re doing:

  • Everyone on our team has received enhanced training and protocol briefings. We will continue to evolve and adjust these protocols as needed.
  • We are implementing telecommuting options for positions where applicable.
  • Non-essential work travel is currently on hold for all employees.
  • We are conducting enhanced cleaning practices at our locations and are instructing employees to continually sanitize their work stations and vehicles.
  • We are also urging all employees to be vigilant about frequent hand washing.

Information for you:
If you have an existing service appointment, we look forward to seeing you and want to reassure you that we are doing everything we can to promote a safe and secure service experience.

During this challenging time, if you are experiencing symptoms related to the COVID-19 virus or have been exposed to it, in order to protect our team and all the customers we serve, we encourage you to please reschedule your service appointment, by calling us at 888-474-3391.

Your safety is our highest priority and we truly appreciate the trust that you place in our team and our company.

Best regards,
Griffith Energy Services
888-474-3391

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