Overview
Green Seal Energy provides top-rated Aeroseal HVAC efficiency services tailored to your specific needs. Our team uses advanced equipment, including a calibrated duct leakage test, to ensure the highest standards of safety and HVAC system efficiency.
Whether you are dealing with high utility bills, rooms that never feel comfortable, or an air conditioner that runs all afternoon, our local experts are here to help with 20+ years of experience. Our air duct leak sealing process works from inside the duct system, so we reach the gaps and seams that hand sealing, mastic, and tape simply cannot get to.
Education
Proper duct sealing is essential for maintaining a healthy and energy-efficient home. In a typical Kansas City house, leaking air ducts waste 20 to 30 percent of the conditioned air your furnace and air conditioner produce, which means you are paying to heat and cool your attic, crawl space, and wall cavities. We address the root cause of the problem, providing long-term results that save you money and protect your investment.
Restoring air duct efficiency helps reduce HVAC energy consumption, evens out room temperatures, and takes strain off equipment you would rather not replace early. Sealing HVAC duct leakage is one of the few home efficiency upgrades that improves comfort and lowers your energy bill at the same time.
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
Improved Efficiency
Optimize your system performance and reduce operational costs. Sealed ducts improve HVAC efficiency by making sure the air you already paid to heat or cool actually reaches the room it was sized for. For most Kansas City homes, it is the HVAC energy efficiency upgrade that should happen before anyone recommends a new furnace.
Enhanced Safety
Minimize risks associated with poor maintenance and faulty systems. Sealing your return ducts also stops them from pulling dust, attic insulation fibers, and crawl space air into the rooms your family breathes in.
Expert Service
Benefit from decades of local experience and specialized training. Every technician who enters your home is background-checked, Aeroseal certified, and equipped to test as well as seal.
Quality Assurance
We use only the best materials and follow strict industry standards, backed by a 10-year sealant warranty and a 1-year labor warranty.
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
Higher Energy Use, Lower Performance
Without duct sealing, airflow loss can reduce system efficiency, create uneven temperatures, and add strain on your HVAC equipment.
Aeroseal Improves Long-Term Efficiency
Aeroseal duct sealing helps reduce energy waste and can often pay for itself within 4 to 5 years through lower utility bills. See our full duct sealing cost breakdown for typical price ranges in the KC metro.

Posted on Matt LivingstonTrustindex verifies that the original source of the review is Google. They did a great job and made a huge improvement on my homes HVAC equipment. Very professional and highly recommended.Posted on Andrew LewisTrustindex verifies that the original source of the review is Google. Great company to work with. Friendly and professional. Reduced my air leakage from appropriately 350 cfm down to only 11 cfm. Highly recommend!Posted on Blake WilliamsonTrustindex verifies that the original source of the review is Google. Did a great job, courteous, professional, cleaned up nicely before they left, made a big difference in the evenness of temperature and comfort level in the house.Posted on Nathan CurreyTrustindex verifies that the original source of the review is Google. Great professional service from Patrick and Rafael! I recommend them wholeheartedlyPosted on w whalenTrustindex verifies that the original source of the review is Google. Patrick did an excellent job, communicated all the way along, and I'm satisfied sealing will make significant improvement in my HVAC circulation and energy consumption.Posted on John AhernTrustindex verifies that the original source of the review is Google. Fantastic product and excellent installation crew. Both exceeded my expectations. Highly recommend.Posted on Terry RouseTrustindex verifies that the original source of the review is Google. They worked hard to make sure the ducts were sealed and the difference is amazing.They went above and beyond by returning when I noticed an issue with one vent. They discovered building debris left in the ductwork by a previous owner. They removed the debris, resealed everything and the airflow is incredible.Posted on Vincent BarkerTrustindex verifies that the original source of the review is Google. Awesome service !!! Very helpful and informative 🙌
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.