AC Repair Services › Duct Sealing Service
Duct Sealing Service in Tempe, AZ
Leaky ducts dump conditioned air into your attic before it ever reaches your living space, which means your AC runs longer and some rooms never get comfortable. Duct sealing closes those gaps at joints, seams, and connections using mastic or foil tape applied to the actual ductwork. It's not glamorous work, but it's one of the highest-impact things you can do for an inefficient system. Many Tempe homes lose a significant portion of their conditioned air this way and don't know it.
Tempe AC Repair Pros provides duct sealing service for homeowners across Tempe, AZ. Call for a free inspection and a written quote before any work begins.
When to Call
When You Need Duct Sealing Service
- One or two rooms stay noticeably hotter than the rest of the house all summer long.
- Your attic feels air-conditioned when you open the hatch, which means you're cooling it by accident.
- Your system runs almost constantly but the house never reaches the thermostat setpoint.
- You had an energy audit and the report flagged duct leakage as a primary efficiency problem.
How It Works
Our Process for Duct Sealing Service
- 1
Inspect the Duct System
We access the attic and trace the supply and return ducts, looking for disconnected joints, torn flex duct, and poorly sealed connections.
- 2
Identify the Worst Leaks
Not every small gap matters equally. We focus on leaks nearest the air handler and at major branch connections first.
- 3
Seal with the Right Material
We use mastic sealant or rated foil tape depending on the location and size of the gap. Household duct tape is not used — it fails.
- 4
Recheck Airflow to Rooms
After sealing, we check whether the problem rooms are receiving better airflow before we call the job complete.
Tempe Context
Why this matters in Tempe
Attic temperatures in Tempe regularly exceed 150 degrees in summer. Any conditioned air escaping into that space is essentially wasted, and the duct connections up there take a beating from the heat every year.
Straight Talk
About pricing & scope
The scope depends on how much of your ductwork is accessible and how many leaks exist. Severely deteriorated flex duct may need replacement rather than sealing, which is a different job entirely.
What This Fixes
Problems We See in Tempe
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