About Us

We're passionate about improving the efficiency of your HVAC system, and helping to lower emissions to fight climate change

We are a unique HVAC company specializing in sealing leaky ducts that cause uneven temperatures in your home, high PG&E bills, and poor indoor air quality. We use patented Aeroseal technology that is a non-invasive, effective way of ensuring the air you are heating and cooling goes where you want it to for a comfortable home - not escaping into your walls attic and crawlspace.

If you are struggling with expensive energy bills, too much dust in the house, or that one room that's always too hot in the summer and too cold in the winter, please reach out for a quote. We offer a 1-day solution that is far less expensive than replacing your HVAC unit - and the work qualifies for a 30% federal tax credit!

We're fully licensed, bonded, and insured.

A group of people sitting on the floor

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What We Do It

At MaxSeal, we specialize in maximizing airflow from your existing HVAC system. We won't try to sell you on a new duct system or a new heat pump. We focus on repairing what you have, to make it like new again.

Why We Do It

We believe everyone deserves a comfortable, healthy, and energy-efficient home, without spending a small fortune. The traditional advice is:

  • Your heat pump / furnace is too small, installing a bigger one is the only solution.
  • Your low airflow on this floor is because the system is poorly designed - you need a new duct system.
  • Your low airflow on this floor is because the system is poorly designed - you need a multi-zone system / booster fans / dampers.
  • Your low airflow in this room is because it’s fed by a leaky duct but the duct can’t be fixed because it is in the floor / wall / ceiling.
  • Your duct system is undersized - you need a new duct system.

Service Areas

We proudly serve the following areas:

  • Gilroy
  • Morgan Hill
  • San Jose
  • Wider Bay Area
  • We’ll go beyond the Bay Area
Contact us to confirm service availability in your location!

Our Services

  • Aeroseal duct sealing
  • Attic fan installation
  • Duct cleaning 
  • Manual & electronic damper installation
  • Duct leakage test
  • Air volume measurements
  • Enlarge return registers
  • Furnace & A/C
  • Heatpump preventative maintenance
  • In home consultation
  • Specialized building energy audits focused on measuring energy loss through HVAC duct systems. 

Our Partners

We collaborate with industry leaders to deliver exceptional results:

  • Aeroseal: Certified providers of cutting-edge duct sealing technology. 
  • Prime Air: Premier HVAC specialists in southern Bay Area, CA.
  • Partnerships built on trust, innovation, and shared commitment to excellence.
  • Elements: Thorough home energy audits and tests.