Leaky ducts waste a lot of energy. In most homes, 30% to 40% of heated or cooled air escapes through poorly sealed ducts before it ever reaches its destination. Hotshots Air Duct Cleaning, a firefighter-led indoor air quality specialist, provides thorough air duct sealing in Baltimore County, MD, and surrounding areas.
This service eliminates duct leakage, boosts HVAC system performance, and improves both airflow and air quality throughout your property. We seal only after a thorough deep duct clean to ensure lasting results.
Our process typically reduces leakage to as low as 2% and delivers faster heating and cooling with lower energy bills and significant utility cost savings. All chemicals used are EPA-approved, non-toxic, and low- or no-VOC, making them safe for children, pets, and individuals with sensitivities.
We serve both residential and commercial properties. Count on us to provide before-and-after data, as well as a post-service certificate that verifies your system’s improved performance.
Discover transparent pricing and money-saving bundles for professional air duct sealing in Baltimore County.
Our pricing depends on the number of duct joints to be sealed:
Several factors affect the price:
You cannot book air duct sealing as a standalone service. It must follow a professional cleaning service.
Get a 10% discount or $50 off when you combine two or more services.
Popular bundles include:
We offer first responder and civil servant discounts that include firefighters, nurses, teachers, police, paramedics, and military personnel.
Our air duct sealing in Baltimore County, MD, uses two proven methods to repair leaky air ducts and improve energy efficiency.
This external sealing method involves technicians applying approved sealants directly to ductwork joints from the outside. We use it when interior access isn’t suitable or at the customer’s request. Thorough duct cleaning must happen beforehand, and it works best for accessible duct runs, such as those in basements or attic spaces.
AeroSeal is a cutting-edge, computer-controlled sealing process where the system is pressurized first. Specialized aerosolized glue is then released into the ducts. Glue particles bond at leak points to seal pinholes and cracks from the inside.
This technology reduces leakage from 30%-40% down to 2%-3%. The process includes before-and-after leakage testing with a post-service certificate and detailed report. AeroSeal is non-invasive, safe, and approved for indoor use.
Our air duct sealing in Baltimore County, MD, combines safety expertise with proven results.
Every technician we send is OSHA-compliant and CPR-certified. Many are career firefighters trained in emergency safety protocols.
We hold a valid MHIC license that allows us to legally perform minor to moderate ductwork repairs in-house if we discover issues during service.
We provide documented results to every homeowner:
We can combine sealing with:
One call does it all for homeowners who want a complete plan.
We deliver quotes within hours and resolve issues within 24 hours. Walkthroughs happen before and after every service, and we back all our work with a 100% satisfaction guarantee.
Here’s how we deliver comprehensive air duct sealing in Baltimore County, MD:
We begin by protecting vital HVAC components such as coils, furnaces, and smoke detectors. Registers and vents are sealed to pressurize the duct system, allowing us to isolate leaks. Supply and return ducts are tested separately to ensure accurate results.
Our AeroSeal equipment connects to the duct system through a temporary access point or register. We perform a pre-seal leakage test to determine the starting point — similar to a Duct Blaster Test — which provides a baseline for comparison once sealing is complete.
Next, we inject the patented AeroSeal formula into the ductwork. Heated air helps the sealant particles adhere only where air leaks exist, not along the entire duct surface. The sealant builds up gradually, layer by layer, closing gaps up to ⅝-inch wide.
The process is fully monitored in real time, automatically adjusting airflow and pressure for maximum efficiency.
Once optimal sealing is achieved, we verify the final leakage results and remove all protective coverings. The system is restored to normal operation, and you’ll receive a detailed before-and-after performance report showing the exact improvement in duct tightness and efficiency.
We guarantee 100% satisfaction with our air duct sealing in Baltimore County, MD, and address any concerns within 24 hours. Duct sealing is a one-time service with no repeat visits required unless you install new ductwork or damage occurs.
We won’t proceed if we find mold, asbestos, or significant duct damage. Instead, we’ll provide referrals or handle repairs ourselves if they are within our scope.
Yes! AeroSeal works on all types of ductwork, as long as the system can be properly pressurized.
Absolutely. AeroSeal uses a non-toxic formula with the lowest level of VOCs in the industry. Homeowners can remain inside while we complete the sealing.
Most homes around 2,000 sq ft are completed within 3 to 3.5 hours, depending on system size and duct complexity
On average, sealing runs about $3,000 for 1,800 – 2,000 sq ft, with pricing starting at $1,500 for smaller systems.
Are you ready to breathe cleaner air and reduce your energy waste? Call Hotshots Air Duct Cleaning at 667-522-6335 or complete our online quote form with smart dropdowns to get your free quote for professional air duct sealing in Baltimore County, MD.
