Overview
If your home feels drafty in winter, stuffy in summer, or your HVAC system runs constantly without ever getting comfortable, the problem is hiding in your walls. Leaks in your home’s building envelope are the #1 source of energy waste for Kansas City homeowners. At Green Seal Energy, we solve this problem with AeroBarrier, a patented, computer-controlled aerosol sealing technology that pressurizes your home and seals leaks from the inside out. As an AeroBarrier certified installer and Aeroseal Authorized Dealer, we bring over 20 years of home performance expertise to every project.
Unlike traditional manual sealing, which relies on a technician’s eye to find and patch visible gaps, AeroBarrier finds and seals 100% of leaks up to a half-inch, including those hidden behind drywall, under subfloors, and in rim joists where most energy loss occurs. That is the difference between hand caulking and true building envelope sealing. The AeroBarrier air sealing Kansas City homeowners ask about most is the whole-house retrofit, and it is what we install every week across the metro. The result is a measurably tighter, more comfortable, and dramatically more efficient home with none of the guesswork. Compare our air sealing services or see what the process looks like in real homes on our case studies page.
Education
Envelope air sealing is the process of closing gaps, cracks, and penetrations in your home’s outer shell. The building envelope includes everything that separates indoor conditioned space from the outdoors: exterior walls, the roof, the foundation, windows, and doors. When these components aren’t fully sealed, conditioned air escapes and unconditioned outside air infiltrates, forcing your HVAC system to work much harder than necessary. Done properly, sealing that shell is the single highest-return efficiency upgrade available to most homeowners, and it should always come before new windows or added insulation.
AeroBarrier is an advanced, automated solution that represents a fundamental shift from manual methods of residential air sealing. The process starts with a blower door test to measure your home’s baseline airtightness in air changes per hour. Then, technicians set up the AeroBarrier system, which fills the sealed interior with a water-based, low-VOC sealant mist. Guided by onboard sensors, the mist is drawn precisely to each leak, building up particle by particle until the gap is fully sealed. Real-time monitoring shows the leakage rate dropping second by second until you hit your target. It is the most reliable way to seal air leaks in house assemblies you cannot see or reach. No demolition, no mess, and no missed spots.
We provide a Duct Leakage Test Report and Certificate showing duct leakage before and after sealing (see sample attached).
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Our Process
Why Green Seal Energy
Since 2004, Green Seal Energy has been the Kansas City metro’s go-to partner for home performance, energy efficiency, and HVAC services. Our credentials aren’t just marketing — they’re the result of 20+ years of consistent excellence.
Founded in 2004, Green Seal Energy has served tens of thousands of Kansas City homes across all neighborhoods and vent configurations.
As a certified Aeroseal Authorized Dealer, our technicians are trained to the highest industry standards in duct and vent sealing technology.
Recognized by EVERGY as their top-ranked energy efficiency partner in the Kansas City region — a distinction earned through performance and customer results.
Need to spread the cost? We offer flexible financing through Wisetack with 0% APR options. Check your rate in seconds — no hard credit pull required.
Benefits
Lower Energy Bills
Envelope leaks are responsible for up to 30% of heating and cooling waste. Sealing them cuts costs immediately, and most homeowners see the change on their very next EVERGY statement. See real numbers on our air sealing energy savings page.
Improved Comfort
Eliminate drafts in winter and hot spots in summer. Every room reaches the temperature you set. It is the most direct way to fix drafty house problems in older Kansas City homes where the stack effect pulls cold air in at the basement and pushes warm air out through the attic.
Noise Reduction
A sealed envelope blocks outside noise, making your home noticeably quieter and more peaceful.
Healthier Indoor Air
Stop unconditioned air from pulling dust, pollen, and garage fumes into your breathing air. Sealing the envelope means your filtered, conditioned air stays inside where you paid to put it.
Pricing & Cost
Vent length
Primary factor
Exit type (wall vs. rooftop)
+$30–$60 for roof
Vent material (flex vs. rigid)
Minor impact
Level of lint buildup
May add time
Number of bends/elbows
Minor impact
Bird nest or blockage removal
+$25–$75
Typical investment range for retrofitting an existing single-family home in the Kansas City metro is $1,800 to $3,500. New construction projects start around $1,500+. Price includes pre- and post-seal blower door testing, computer-guided sealant application, and a final certification report. For a full breakdown by home size, see our whole home air sealing cost guide.
10-Year Transferable Warranty
AeroBarrier's flexible, water-based sealant is built to last. We stand behind every AeroBarrier envelope sealing project with a comprehensive warranty that stays with the home if you ever move, which makes it a documented selling point rather than an invisible upgrade.
Maintenance depends on your lawn type and needs. Typically, weekly orbi-weekly visits keep your yard healthy and looking great.
Schedule your free evaluation and start saving on energy today.