HVAC Plenum Cleaning in Houston, TX
- NADCA-certified technicians
- Serving Texas since 2015
- Free on-site inspection
- Same-day service available
What is an HVAC plenum and why clean it?
Typical starting price
Time on site
Often available
Certified technicians
What is plenum cleaning?
Because every bit of air passes through the plenums, buildup there affects the whole house. In humid homes the supply plenum above the coil can sweat, and duct board plenums can hold moisture and odor.
We access the plenums, clean them under negative pressure, inspect duct board or metal surfaces for damage or mold, and recommend sealing or replacement if surfaces are deteriorated.
Plenum Cleaning is part of our hvac cleaning services. Many customers book it together with hvac cleaning.
What is included — and when you need it
Included in every plenum cleaning visit
- Supply plenum cleaning
- Return plenum cleaning
- Duct board condition check
- Mold inspection
- Sealing recommendations
Signs you need it
- Musty smell right when AC starts
- Dust bursts at nearby registers
- Damp duct board
- Visible growth above the coil
How our plenum cleaning works
1. Inspect & measure
Airflow and temperature split recorded first.
2. Power down & open
Air handler opened safely with power off.
3. Blower cleaning
Blower wheel and housing cleaned.
4. Coil wash
Non-acid, coil-safe cleaner and rinse.
5. Drain service
Pan cleaned and condensate line flushed.
6. Test & document
Readings repeated and shared with you.
Plenum Cleaning pricing
| Service | Typical price |
|---|---|
| Plenum cleaning | Included in HVAC cleaning; quoted separately on site |
| Plenum replacement | Quoted on site |
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
HVAC Cleaning
A top-to-bottom cleaning of the parts that actually move and condition your air — blower wheel, evaporator coil, drain pan, air handler cabinet and ductwork — so your system runs cooler, quieter and cleaner..
Mold in Air Ducts Removal
Gulf Coast humidity and cold supply air create condensation inside ducts — the perfect place for mold.
Duct Sealing
Seal the leaks in your ductwork so cooled air reaches your rooms instead of the attic — with mastic at accessible joints and interior sealing for hard-to-reach leaks..
AC Coil Cleaning
A dirty evaporator coil is one of the most common reasons an AC struggles on 100-degree days.
Where we provide plenum cleaning
Our offices
Frequently asked questions
Is plenum cleaning part of duct cleaning?
Yes, in our full service. It can also be done on its own when mold or odor is concentrated there.
Can a moldy plenum be cleaned?
Metal plenums can be cleaned and treated. Saturated duct board is usually replaced.
Why is my plenum sweating?
Missing insulation, air leaks or high attic humidity.
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