Quick Answer:
Duct sealing closes hidden air leaks in your HVAC ductwork so heated and cooled air reaches the rooms it’s meant to serve. For Michigan homes, it improves comfort during cold winters and humid summers while lowering energy waste and utility bills. Most homeowners notice more even temperatures and better airflow right away.
Aeroseal duct sealing is an important service for homeowners across Michigan, especially in cities such as West Bloomfield, Troy, Ann Arbor, Bay City, DeWitt, Davison, and Flushing, where seasonal temperature swings place added strain on HVAC systems. Dustout Air Duct Cleaning and Duct Sealing provides professional residential duct sealing services to ensure heated and cooled air reaches the rooms they’re intended to serve, improving comfort, energy efficiency, and indoor air quality throughout the home.
Homes that are more than 10 years old or have undergone major renovations are often ideal candidates for duct sealing. Aging ductwork, shifting structures, and unsealed connections can allow large amounts of conditioned air to escape before reaching living spaces. With Dustout’s expert duct sealing for Michigan homeowners, they can reduce energy waste, maintain consistent indoor temperatures, and get the most from their HVAC system.
What Are the 3 Types of Duct Leakage?
Most residential duct leakage falls into three main categories. Identifying the source of leakage helps determine the most effective sealing solution.
- Duct Leakage
Occurs along seams, joints, and duct connections. Over time, vibration, temperature changes, and aging materials create gaps that allow air to escape into attics, basements, or crawlspaces.
- Boot Leakage
Happens where ductwork connects to floor, wall, or ceiling registers. These leaks are often hidden behind drywall and are common in finished homes throughout Genesee County and Oakland County.
- Equipment Leakage
Occurs near the furnace, air handler, or plenum connections. Leaks at the equipment level can significantly reduce system efficiency and place unnecessary strain on HVAC components.
What Is Aeroseal Duct Sealing?
Aeroseal Duct sealing is the process of closing air leaks throughout your HVAC duct system so conditioned air reaches the rooms it’s meant to heat or cool. Modern duct sealing—such as aerosolized duct sealing (Aeroseal) seals leaks from the inside, including those hidden behind walls or ceilings.
For Michigan homeowners who face cold winters and humid summers, duct sealing plays a major role in maintaining consistent year-round comfort.
Professional Duct Sealing Process
Step 1: Seal All Designed Openings
Supply registers and return grilles are temporarily blocked, so only unintended leaks are sealed.
Step 2: Isolate the HVAC Equipment
The furnace or air handler is protected to ensure safe operation during sealing.
Step 3: Pressurize the Duct System
The duct system is pressurized to measure existing air leakage and establish a baseline.
Step 4: Inject an Aerosolized Sealant
A fine sealant mist is released into the ducts. As air escapes through leaks, the sealant particles collect at low-pressure points and bond together, sealing gaps from the inside.
Benefits of Duct Sealing for Michigan Homes
Proper duct sealing provides long-term benefits, including:
- Lower heating and cooling costs
- Consistent temperatures throughout the home
- Improved indoor air quality
- Reduced dust and allergens
- Less strain on HVAC equipment
- Increased system efficiency and lifespan
Many homes across Saginaw, Genesee, Lapeer, Livingston, Oakland, and Macomb Counties experience 20–30% air leakage due to unsealed ductwork.
Older Duct Sealing Methods (and Their Limitations)
Asbestos Duct Wrap
Used before 1970 for insulation and fire resistance. Asbestos is now considered hazardous and must be handled by licensed professionals.
Brush-On Mastic
Effective on exposed seams, but rarely seals hidden ductwork inside walls or ceilings.
Spray Foam Encapsulation
It can provide strong sealing but is costly, messy, and limited to accessible attic or crawlspace duct systems.
Duct Tape
Despite the name, duct tape is not recommended for HVAC duct sealing. Adhesives fail over time, often worsening leaks.
The Cost of Duct Sealing in Michigan
Duct sealing costs vary based on:
- Home size
- Duct accessibility
- Amount of leakage
- Number of HVAC systems
For homes up to 2,500 square feet, duct sealing typically ranges from $1,500 to $2,000. Larger homes or properties with multiple furnaces may exceed this range due to additional labor and sealant requirements.
Factors Affecting Price
- Accessibility: Attic or crawlspace ductwork increases labor costs
- System Count: Multiple HVAC systems require more sealant
- Home Size: Larger homes take longer and use more materials
Many homeowners see a return on investment through lower energy bills within a few heating and cooling seasons.
How Do I Know If I Have Duct Leakage?
Signs Your Home May Have Duct Leakage:
Heating and cooling account for nearly 60% of the average home’s energy costs, yet in many houses, up to 15% of that conditioned air never reaches the rooms it’s intended to heat or cool. This energy loss happens because all duct systems leak—even newer ones—allowing air to escape through hidden gaps and seams.
Now imagine a home where airflow is balanced, room temperatures are consistent, and energy waste is reduced. That’s the advantage of Aeroseal duct sealing powered by Dustout, a proven solution that seals leaks from the inside, providing greater control over comfort and energy efficiency.
Common warning signs include:
- Uneven temperatures between rooms
- High energy bills
- Weak airflow from vents
- Excess dust in the home
- HVAC system running longer than normal
A professional duct leakage test provides clear answers.
Frequently Asked Questions About Duct Sealing
Is duct sealing worth it for older Michigan homes?
Yes. Older homes often have significant leakage due to aging materials and outdated sealing methods.
How long does duct sealing take?
Most residential duct sealing projects take 3–4 hours, depending on the home’s size and leakage levels.
Will duct sealing lower my energy bills?
Yes. Reduced air loss allows your HVAC system to operate more efficiently.
Can duct sealing improve indoor air quality?
Absolutely. Sealing leaks prevents dust and pollutants from being pulled into the duct system.
Is duct sealing messy or invasive?
No. Modern duct sealing is non-invasive and performed from inside the duct system.
Trusted Local Duct Sealing Services in Michigan
From Midland and Lansing to Brighton and Canton, Dustout proudly provides professional Aeroseal duct sealing and dryer vent services across Southeast Michigan and Mid-Michigan.
👉 Schedule your duct sealing service today and protect your home year-round
