Duct Sealing in Houston, TX
- NADCA-certified technicians
- Serving Texas since 2015
- Free on-site inspection
- Same-day service available
Which duct sealing method is right for my home?
Typical starting price
Time on site
Often available
Certified technicians
What is duct sealing?
Most duct leaks are at connections — where flex meets a collar, at register boots and around the plenum. Foil tape often fails in hot attics; mastic lasts.
We test, seal accessible joints with mastic and mesh, re-strap sagging flex, and recommend aerosol sealing when leaks are out of reach. Then we retest.
Duct Sealing is part of our duct repair & installation. Many customers book it together with duct leakage testing.
What is included — and when you need it
Included in every duct sealing visit
- Pre-sealing leakage test
- Mastic sealing at boots, collars and plenums
- Re-strapping sagging flex
- Aerosol sealing option
- Post-sealing verification test
Signs you need it
- Hot rooms at the end of runs
- Dusty home
- High cooling bills
- Old tape peeling off ducts
How our duct sealing works
1. Assess
Measure insulation, leaks and duct condition.
2. Plan
Prioritized options with prices.
3. Prepare
Protect equipment, lights and walkways.
4. Seal & install
Air sealing, insulation or duct sealing.
5. Verify
Depth markers or leakage retest.
6. Report
Before/after summary.
Duct Sealing pricing
| Service | Typical price |
|---|---|
| Duct sealing (mastic) | Quoted after test |
| Aerosol interior sealing | Quoted after test |
Prices are typical ranges for standard homes. You get a firm, written price after a free on-site inspection — before any work starts.
Typical time on site
Recommended frequency
On-site inspection & estimate
NADCA-certified team
Why Texas homeowners choose Indoor Air Duct
| What you get | Indoor Air Duct Cleaning | Typical “$99 whole-house” special |
|---|---|---|
| Every supply & return cleaned | ✓ Included | Often limited vent count, then upsells |
| Negative-pressure HEPA equipment | ✓ Connected to trunk line | Often a portable vacuum at the register |
| Camera inspection + before/after photos | ✓ Every job | Rarely |
| Written price before work starts | ✓ Always | Price changes on site |
| NADCA-certified, insured technicians | ✓ Since 2015 | Often not stated |
Senior Technician
Senior Technician
Senior Technician
NADCA-Trained Technician
Related services
Air Duct Repair
We repair disconnected, crushed, torn and leaking ducts — common in hot Texas attics — so every room gets the airflow it was designed for..
Attic Air Sealing
Gaps around wiring, plumbing, top plates and attic hatches let hot, dusty attic air into your living space.
Air Duct Replacement
When ductwork is old, crushed, contaminated or poorly designed, replacing it restores airflow and indoor air quality — often the missing piece after a new AC install..
Ductwork Installation
Properly sized, sealed ductwork for new homes, additions and retrofits — designed so each room gets the right amount of air..
Where we provide duct sealing
Our offices
Frequently asked questions
Why not just use duct tape?
Cloth duct tape fails quickly in hot attics. Mastic and UL-listed foil tape last much longer.
Will sealing change airflow?
It sends more air to rooms; we check balance after sealing.
Should I clean ducts before sealing?
Yes, especially before interior aerosol sealing.
Get your free inspection & written price
Tell us a little about your home and we will call you back — usually within 2 hours during business hours. No obligation, no pressure.
- Free on-site inspection & camera check
- Written price before any work
- NADCA-certified, background-checked techs
- Open 7 days a week
Prefer to talk? Call (832) 669-5372