The duct leak lab.
Press the leaks in an attic duct run to seal them with mastic and watch the air reach the rooms and the money stay in your pocket. A hands-on look at why sealed ducts matter. Free, with no signup.
- Six leak spots
- A live money meter
- Free, no signup
Press or tap a numbered leak to seal it with mastic. Each one is a different spot where real ducts tend to leak.
- Leaks sealed
- 0 of 6
- Money lost per year
- $0
What the lab shows
- Leaks in unsealed ducts quietly send part of the air you paid for into the attic or crawl space.
- Sealing comes first, then insulating the ducts, so the insulation protects what is left.
- A duct test with a pressure gauge shows your real number, and our crew can run one.
Saved. Your choices will travel with the estimate form below.
Four places to look first.
Seams and joints
Sections of trunk and branch ducts are joined by tape or mastic that dries out in a hot attic.
Collars and boots
Where a branch meets the trunk or a duct meets the ceiling, gaps are common.
Flex duct
Tears, kinks and loose clamps are easy to miss and cost a lot of air.
The return side
Return leaks pull dusty attic or crawl space air into the system.
Learn more about each one.
DuctworkDuct Repair and SealingAir that arrives is air you paid for.
DuctworkDuct InsulationA jacket for your ducts.
DuctworkDuct CleaningCleaner ducts, no hard sell.
DuctworkDuct Redesign and ModificationBetter routes for the same air.
DuctworkDuctwork InstallationWhere the air goes matters.
DuctworkZoned HVAC SystemsOne system, many climates.Duct Leak Lab questions
Why are some rooms too hot or too cold?
The usual causes are duct leaks, long or undersized runs, missing return air, a hot attic and sun on big windows. A technician can measure airflow and pressure to find the cause. Our Comfort Map shows how these issues change the rooms in a house.
What size system does my house need?
Size depends on far more than square footage: insulation, windows, sun, ducts and how people use the house. An oversized system cools fast, shuts off early and leaves the air humid. We calculate the load instead of copying the old unit, and our Tonnage Finder gives you a starting range.
How do I get a price?
Fill in the form on any page, or call or text 615-431-3789. Photos of the unit and its label help us come prepared. Repairs are priced after a diagnosis, and replacements after a short visit, so the written price covers equipment, labor and extras.
Want your own duct test?
We can test the ducts with a pressure gauge, show you the result and seal what needs it.