If you need duct sealing in Forest Hill, MD or any of the surrounding areas, reach out to our team of experts at At Your Service Heating & Cooling LLC. Duct leakage is a common problem that can result in significant air loss in your building. Thus, sealing the ducts to correct issues is paramount to avoid air loss and facilitate better HVAC function. There are various methods we can apply to seal ductwork. Using a duct mastic is the most effective and popular method for air duct sealing. Following this in popularity is the use of spray foam, which is highly regarded because of its nontoxic nature and simplicity of application.