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Duct Repair & Sealing in Jackson, MS

In a Jackson attic that hits 130°F in July, leaky ductwork is like leaving a window open all summer — you're paying to cool the outdoors.

Signs You Need Duct Repair & Sealing

  • Rooms that never reach the set temperature
  • Weak airflow from distant vents
  • Dust that returns days after cleaning
  • Musty smell when the system runs
  • High bills despite a newer AC unit
  • Visible kinked, torn, or disconnected flex duct

ENERGY STAR estimates the typical home loses 20–30% of conditioned air to duct leaks — and in central Mississippi, most ductwork runs through vented attics that are among the hottest spaces in American homes. Every leak is cooled air you've paid for, dumped into a 130°F attic. Worse, leaks on the return side pull that superheated, humid attic air into your system, forcing it to work harder and raising indoor humidity.

We start with a pressure test to measure exactly how much your system is losing — no guessing. Then we seal with mastic and mechanical fastening (never cloth 'duct tape,' which fails in attic heat), repair or replace crushed and deteriorated sections, insulate exposed runs, and verify the improvement with a post-test. Customers routinely see the stuffiest room in the house finally cool properly and double-digit percentage drops in summer bills. If you're replacing a system, this is the single most important add-on — new equipment on leaky ducts is money wasted.

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Questions

Duct Repair & Sealing FAQs

How do I know if my ducts are leaking?

The giveaway signs: uneven temperatures between rooms, weak airflow at far vents, excessive dust, and bills that don't match your usage. A pressure test gives a definitive answer in about an hour.

Is duct sealing worth it?

In our climate, usually emphatically yes — attics here are extreme environments, and 20–30% loss is common in homes built before the 2000s. Sealing often pays for itself in a few summers.

Can you replace ductwork entirely?

Yes. Flex duct installed in the 1980s–90s is often past its service life — the inner liner degrades and insulation falls away. We design and install complete new systems when replacement beats repair.

Will sealing my ducts help with humidity?

Yes. Return-side leaks are a major hidden source of indoor humidity, because they pull wet attic air into the system. Sealing them lets your AC dehumidify the way it was designed to.

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