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Duct Cleaning Checklist

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General

Did the service provider obtain access to and clean the entire heating and cooling system, including duct work and all components (drain pans, humidifiers, coils, and fans)?

Yes       No

Has the service provider adequately demonstrated that duct work and plenums are clean? (Plenum is a space in which supply or return air is mixed or moves; can be duct, joist space, attic and crawl spaces, or wall cavity.)

Yes       No

Heating

Is the heat exchange surface visibly clean?

Yes       No

Blower

Are the blower blades clean and free of oil and debris?

Yes       No

Is the blower compartment free of visible dust and debris?

Yes       No

Cooling Components

Are both sides of the cooling coil visibly clean?

Yes       No

If you point a flash light into the cooling coil, does the light shine through to the other side? It should if the coil is clean.

Yes       No

Are the coil fins straight and evenly spaced (as opposed to being bent over and smashed together)?

Yes       No

Is the coil drain pan completely clean and draining properly?

Yes       No

Plenums

Is the return air plenum free of visible dust and debris?

Yes      No

Do filters fit properly and are they the proper efficiency as recommended by the HVAC system manufacturer?

Yes       No

Is the supply air plenum (directly down-stream of the air handling unit) free of moisture stains and contaminants?

Yes       No

Metal Ducts

Are interior ductwork surfaces free of visible debris? (Select several sites at random in both the return and supply sides of the system.)

Yes       No

Fiberglass

Is all the fiberglass material in good condition (i.e., free of tears and abrasions; well adhered to underlying materials)?

Yes       No

Access Doors and Covers

Are newly installed access doors in sheet metal ducts attached with more than just duct tape (i.e., screws, rivets, mastic)?

Yes       No

With the system running, is air leakage through access doors or covers very slight or non-existent?

Yes       No

Air Vents

Have all the registers, grilles, and diffusers been firmly re-attached to the walls, floors, and/or ceilings?

Yes       No

Are the registers, grilles, and diffusers visibly clean?

Yes       No

System Operation

Does the system function properly after cleaning?

Yes       No

If you answered “No” to any of the above questions, this may indicate a problem with the job. Speak to your contractor regarding these issues and ask him to make corrections to his/her work such that you can answer all the questions “Yes.”

Yes       No