Leaky air ducts don’t just waste energy—they drag down your comfort and send allergens and dust circulating through your home. With Aeroseal technology from Mainstream, we seal those hidden leaks from the inside out. The result? A tighter, cleaner, more efficient duct system that helps your HVAC perform better while improving indoor air quality.
Since 2000, Spokane and Northern Idaho homeowners have trusted us for reliable service and lasting results. Our team uses Aeroseal to target even the tiniest duct leaks—no tearing into walls or ceilings required. And with 24-hour emergency services and our Care Club, you get the comfort, support, and peace of mind you deserve, year-round.
Welcome to Mainstream Home Services – your one-stop solution for all your electrical, heating, cooling, and plumbing needs. Here’s why you should trust us with your home services:
We respect your time and prioritize efficient communication. We ensure minimal wait times for our technicians, allowing you to spend more time enjoying your home. Expect a call before our technician arrives, giving you the flexibility to plan your day accordingly.
No surprises, no hidden costs. Our upfront pricing provides competitive quotes tailored to your specific service requirements. You'll receive a detailed breakdown of the work involved, ensuring transparency and total peace of mind.
Our friendly, skilled technicians are experts in electrical, heating, cooling, and plumbing services. With state-of-the-art tools and expertise, we guarantee precise, code-compliant work. Your home will be left spotless, reflecting our commitment to cleanliness and professionalism.
We proudly service the following cities and neighborhoods in Spokane & Northern Idaho:
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Explore our comprehensive indoor air quality services designed to address every aspect of your home’s atmosphere. Click the links below for more details on our specialized offerings:
Aeroseal is a cutting-edge technology that seals leaks in your ductwork from the inside out. Using a safe, non-toxic aerosol mist, it finds and seals gaps that waste energy and reduce air quality—without tearing into walls or ceilings.
Yes! Aeroseal can dramatically improve your home’s energy efficiency, airflow, and indoor air quality. Many homeowners see lower utility bills and more consistent temperatures, making it a smart long-term investment.
Costs can vary based on your home’s size and duct system. Mainstream offers upfront pricing with no hidden fees—call us for a custom quote and see how much you could save in the long run.
process efficiently, with minimal disruption to your home.
Air leaks in your ductwork might be out of sight—but they shouldn’t be out of mind. Invisible cracks and gaps in your home’s duct system can cost you hundreds each year in wasted energy, uneven airflow, and reduced indoor air quality. At Mainstream, we use Aeroseal duct sealing to fix those hidden problems from the inside out—no demolition, no guesswork, just clean, efficient results.
Serving Spokane and Northern Idaho since 2000, our licensed technicians use Aeroseal’s industry-leading technology to locate and seal leaks throughout your ductwork. It’s one of the most effective ways to improve HVAC performance, reduce dust and allergens, and bring lasting comfort to every room in your home.
Aeroseal is a non-invasive duct sealing solution that uses advanced software and microscopic sealing particles to close leaks inside your duct system. Rather than sealing from the outside (which often misses small or unreachable gaps), Aeroseal distributes a dry aerosol mist throughout your ductwork. This mist binds to the edges of leaks and builds an airtight seal—without coating the entire system or requiring duct removal.
The Aeroseal process is backed by real-time diagnostic testing, so you’ll see the before-and-after improvement in your system’s performance. Most homes experience a 30% or greater reduction in duct leakage—often with same-day results.
Wondering if Aeroseal is worth it? Here’s how it makes a difference:
Improved Indoor Air Quality: Sealing your ducts prevents unfiltered air, dust, and allergens from being pulled into your living spaces. That means fewer allergy triggers and a cleaner environment for your family.
Consistent Comfort: Say goodbye to hot and cold spots. Aeroseal ensures every room gets the airflow it’s supposed to.
Lower Energy Bills: Sealed ducts help your HVAC system run more efficiently, so it uses less energy to maintain your desired temperature.
Longer HVAC Lifespan: With fewer cycles and less stress on your equipment, Aeroseal can help extend the life of your heating and cooling system.
Eco-Friendly Performance: Reducing energy loss isn’t just good for your wallet—it’s good for the environment, too.
Whether your goal is greater comfort, healthier air, or improved energy efficiency, Aeroseal duct sealing can help you achieve it.
If your home has uneven temperatures, excess dust, or unusually high utility bills, your ducts may be the culprit. Signs that you could benefit from Aeroseal include:
Hot or cold spots in certain rooms
Weak airflow from vents
Stuffy or stale indoor air
Dust buildup near registers
High energy bills without increased usage
HVAC running constantly or short cycling
If any of these sound familiar, our team can perform a full air duct inspection to assess the condition of your system and determine if Aeroseal is the right solution.
When it comes to advanced duct sealing, you need more than just the right technology—you need the right team. Mainstream has been Spokane’s go-to partner for honest, high-quality HVAC services since 2000. Our team is trained and certified to deliver Aeroseal with precision, professionalism, and care.
We never cut corners or recommend services you don’t need. Instead, we evaluate your entire heating and cooling system, inspect your ductwork, and provide honest guidance based on your home’s unique needs. And if something ever goes wrong, our 24/7 emergency HVAC services are just a phone call away.
Aeroseal duct sealing is an essential part of a healthy home—but it’s even more effective when paired with our full range of indoor air quality services:
Air Duct Cleaning: Make sure your ducts are clean before sealing them. Our thorough duct cleaning clears dust, debris, and allergens to keep air flowing freely.
Air Duct Inspections: Our inspections identify leaks, damage, and performance issues so we can target sealing efforts where they matter most.
Whole House Air Purifiers: Once your ducts are sealed, a whole-home purifier can help remove airborne pollutants and keep your air fresh and healthy.
Humidity Control: Balanced humidity is key to indoor comfort. We install whole home humidifiers and dehumidifiers to help manage moisture and protect your air.
Ventilation Solutions: Proper ventilation supports airflow and helps your sealed ducts work more effectively, especially in older or tightly sealed homes.
We’ll work with you to design a personalized plan that brings out the best in your HVAC system—starting with Aeroseal and building from there.
Want to make your Aeroseal results last even longer? Join our Care Club for seasonal system checkups, priority service, and exclusive discounts. It’s the easiest way to protect your investment and enjoy long-term comfort and savings.
At Mainstream Electric, Heating, Cooling, & Plumbing, we don’t just seal ducts—we restore peace of mind. With Aeroseal technology and a team that treats your home like their own, you can trust us to deliver cleaner air, stronger airflow, and better efficiency in every room.
Ready to take control of your indoor air and energy bills? Schedule your Aeroseal duct sealing service with Mainstream today.
Mainstream is Spokane’s #1 plumbing, electrical, heating, and air conditioning home repair specialists.
Call today to schedule your service!
