Is duct cleaning worth it?
We don't offer duct cleaning. We don't sell it, subcontract it, or take a referral fee on it. We make nothing either way, which is the only reason this answer is worth anything to you.
What the EPA actually says
The EPA does not recommend routine duct cleaning. Their guidance is that ducts should be cleaned as needed — not on a schedule, and not as a standard part of HVAC maintenance. That's a meaningful distinction, because a lot of companies market duct cleaning as something every home needs every few years. The EPA's position doesn't support that.
The EPA also states that duct cleaning has never been shown to prevent health problems. Studies have not demonstrated that particle levels in homes increase because of dirty ducts, or that cleaning them reduces those levels in any meaningful way.
You can read the full EPA guidance here:
When duct cleaning is warranted
The EPA identifies three situations where cleaning may be appropriate:
Substantial visible mold growth
Mold inside hard-surface ducts (sheet metal) is a legitimate reason to clean. Note the qualifiers: substantial, visible, and inside hard-surface ducts. A musty smell alone doesn't confirm mold in the ductwork, and mold on soft insulation inside ducts may require replacement rather than cleaning.
Vermin nesting in the ductwork
Rodents or insects that have gotten into and nested in the duct system are a real problem. Cleaning is warranted, but the entry point also needs to be found and sealed — otherwise the problem comes back.
Ducts clogged with debris blowing out of registers
If debris is visibly releasing from supply registers into the living space, the ducts are clogged badly enough that cleaning makes sense. This is not the same as dust on a register cover, which is normal.
What actually improves efficiency
The EPA notes that cleaning cooling coils, fans, and heat exchangers may improve system efficiency. Little evidence exists that cleaning the ducts alone does. That's an important distinction: the components that move and condition the air matter more than the passages it travels through.
Coil cleaning — along with checking refrigerant pressure, testing the capacitor, and inspecting the heat exchanger — is part of a standard seasonal tune-up. If your system isn't keeping up or your energy bills have climbed, a maintenance visit is a better first step than duct cleaning.
If your system isn't performing, start here
A diagnostic visit or seasonal tune-up covers the components the EPA says actually affect efficiency. Call John at (903) 692-9008 or request service online.
The Good Neighbor Plan includes two seasonal visits per year — coil check, refrigerant pressure, capacitor test, and more. See what's included.