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HVAC Ductwork Maintenance

What homeowners should monitor in HVAC ductwork, including accessible damage, flex-duct restrictions, registers, return grilles, insulation and air leakage.

Why It Matters

Maintenance supports reliable system operation

Ductwork normally requires less routine attention than filters or mechanical equipment, but damage or restriction can have a large effect on comfort and airflow.

Accessible flex duct can become crushed, kinked or disconnected. Registers and return grilles can also become blocked by furniture or household items.

Duct cleaning is not a substitute for correcting moisture, filtration, leakage or mechanical problems that are causing contamination or airflow issues.

Maintenance Details

What to know

Supply ducts

Carry conditioned air from the equipment to rooms.

Return ducts

Provide the path back to the blower and are critical to total system airflow.

Flex duct

Should be supported and routed without severe compression or sharp kinks.

Insulation

Damaged duct insulation can create heat gain/loss and condensation risk in unconditioned spaces.

Registers

Keep supply outlets open unless the system was specifically balanced otherwise.

Leakage

Disconnected or poorly sealed ducts can waste conditioned air or draw unwanted air into returns.

Homeowner Maintenance

Simple observation is valuable

Filters, thermostat settings, visible outdoor-unit clearance, unusual noise, water and changes in comfort are all useful things for a homeowner to monitor. Catching a change early can prevent a minor condition from becoming a larger service problem.

Professional Service

Some maintenance requires measurements

Electrical testing, refrigerant evaluation, combustion analysis, internal equipment cleaning, airflow measurement and safety-control checks should be performed by qualified personnel using the appropriate procedures and instruments.

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Need Service?

Have the system evaluated before a small problem becomes a failure

If you notice repeated cycling, poor comfort, water, ice, unusual odors, abnormal noise or a sudden change in operating performance, maintenance alone may not be the answer. The system should be diagnosed.

Request HVAC ServiceBack to Maintenance Center
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