| Quick facts | Answer |
|---|---|
| Cost range | About $172.91 to $345.82 typical in El Paso; $500 to $4,000 nationally |
| Time | About 4 hours for most homes; jobs range 2 to 8 hours |
| Who's qualified | EPE requires HERS, BPI, or NATE certification; an HVAC license works for the without-testing method |
When does a home in El Paso need air duct sealing?
Air duct sealing is typically needed when ducts leak conditioned air, have visible gaps, or show disconnected joints. El Paso Electric's program treats leakage above 35% of total fan flow as a case where sealing is needed most. Leaks waste conditioned air and cut efficiency and comfort.
How long does air duct sealing take in El Paso?
Most homes take about 4 hours for a technician to seal all leaks, with total jobs ranging from 2 to 8 hours. One El Paso cost guide breaks it down as 1 to 2 hours for inspection, 1 hour for cleaning, 2 to 3 hours for sealing, 1 to 2 hours for reinsulation, and 30 minutes for testing and cleanup.
Does El Paso Electric offer duct-sealing incentives?
El Paso Electric offers duct-sealing incentives for residential single-family homes with 1 to 4 units in its Texas service area. Contractors must show HERS, BPI, or NATE certification. For the 'without duct leakage testing' method, an HVAC license is also acceptable.
Why does the Texas climate matter for leaky ducts?
Texas has a hot desert climate with average humidity around 35% and about 108 days above 90°F each year. Extreme heat and humidity degrade flex duct faster. They also encourage mold growth in poorly insulated or leaky ducts.
What does El Paso Electric require before work begins?
A written quote listing all work materials is required before any work begins. The program's post-installation leak criteria require leakage at or below 10% of total fan flow. Pre-installation leakage is capped at 35% of total fan flow.
What to do next
- Ask for a written quote listing all work materials before any work begins, as El Paso Electric requires.
- Check whether your single-family home with 1 to 4 units qualifies for El Paso Electric's duct-sealing incentive.
- Verify the contractor's HERS, BPI, or NATE certification, or an HVAC license for the without-testing method, through El Paso Electric's program requirements.
- Ask whether the job will include duct leakage testing and confirm the result meets the at-or-below-10%-of-fan-flow criterion.
- Call (915) 286-7051 or email [email protected] for a free quote from an independent, licensed, insured AC repair contractor.
El Paso Air is a free referral service: an independent contractor does the work and may pay us a referral fee. You never pay us anything.




