Keeping Your Air Ducts and HVAC System Clean: Q&A With Michael J. Palazzolo

Michael J. Palazzolo: Our work centers on air duct and HVAC system cleaning.

We provide residential, commercial, and industrial air duct cleaning, along with dryer vent cleaning and cleaning of accessible HVAC components such as blowers and coils.

We also provide duct leakage testing and Aeroseal duct sealing when leakage is part of the problem.

The important thing is determining what the system actually needs rather than assuming every airflow, dust, or comfort problem has the same solution.

A lot of what we see comes back to system condition, maintenance, airflow, and the way the ductwork was installed or has changed over time.

Dust and debris can accumulate in duct systems. We also find construction material, drywall dust, pet hair, and occasionally foreign objects that have made their way into the system.

Duct leakage can create a different set of problems. Supply-side leaks can allow conditioned air to escape, while return-side leaks can pull air into the system from unintended areas.

Not every problem is caused by dirty ductwork, which is why inspection matters.

Indoor air quality is broader than air duct cleaning.

Filtration, ventilation, humidity, pets, outdoor conditions, building materials, HVAC maintenance, duct leakage, and individual sensitivities can all play a role.

Air duct cleaning can remove accumulated material from the portions of the HVAC system included in the cleaning scope, but it should not be presented as a treatment for allergies, asthma, or other health conditions.

If we encounter something outside our area of work, the right approach is to identify it and involve the appropriate specialist.

It varies considerably from one home to another.

Normal household dust is common, but we also encounter pet hair, construction debris, drywall material, small objects, insect debris, and other material that has entered the system over time.

Renovation and construction can make a significant difference because fine material can enter open or unprotected ductwork.

That is one reason the condition of the system matters more than simply looking at how many years have passed since the last cleaning.

There is no schedule that applies to every house.

A general inspection interval of roughly three to five years can be reasonable for checking system condition, but that does not mean the ducts automatically need to be cleaned every three to five years.

Homes with pets, recent construction, unusual debris, heavy accumulation, or other conditions may need attention sooner. Other systems can go longer without needing cleaning.

The decision should be based on what is actually present in the system.

Start with the basics.

Use the correct HVAC filter for the system and check it regularly. Keep supply and return registers unobstructed. Pay attention to changes in airflow, unusual dust accumulation, or rooms that suddenly become difficult to heat or cool.

The heating and cooling equipment should also receive appropriate maintenance from a qualified HVAC contractor.

Those steps help homeowners spot changes before simply assuming the ductwork needs to be cleaned.

It depends on the amount and location of the buildup.

Significant accumulation on HVAC components or material that restricts airflow can affect system conditions.

But high energy use, weak airflow, or comfort problems can also come from duct leakage, equipment issues, poor balancing, damaged ductwork, insulation, or system design.

Cleaning should therefore be based on the actual condition of the system rather than treated as a guaranteed efficiency improvement.

The time depends on the size and configuration of the home, number of systems, access, and the condition of the ductwork.

A typical residential project may take several hours, but the cleaning scope should determine the time required rather than trying to fit every house into the same schedule.

It should not.

During Safety King’s cleaning process, the duct system is placed under negative pressure so loosened material can be collected and removed from the home.

Registers and work areas are prepared as needed, and crews use protective measures around equipment and finished surfaces.

The objective is to remove material from the HVAC system without redistributing it into the living space.

Ask what is actually included.

A homeowner should understand which ducts and HVAC components will be cleaned, what equipment will be used, how debris will be collected, how the home will be protected, and whether anything could change the scope or price after the work begins.

A low advertised price does not tell you much unless you know what service is included.

Homeowners can learn more about Safety King’s services at SafetyKing.com or call 1-800-AIR-DUCT.

Safety King has served Michigan homes and facilities since 1969.