Potomac Services is NADCA certified air duct cleaning company. We adhere to the standards and ethics provided by NADCA to clean your entire air system. Below is a pre and post cleaning checklist provided by NADCA. Our technicians use this checklist to help ensure that we use the best and proven process for cleaning your air system. Your invoice will contain this checklist.
1. Can the company show proof of NADCA membership and certification? ___Yes ___No
2. Will the contractor conduct a thorough inspection of your system PRIOR to performing any work and alert
you to any problems? This is required by the current NADCA ACR Standard. ___Yes ___No
3. Is the HVAC system fully operational prior to cleaning? ___Yes ___ No
4. Services to be provided:
Clean Supply Ductwork ___Yes ___No
Clean Return Air Ductwork ___Yes ___No
Remove, Clean and Reset:
Supply Registers ___Yes ___No
Return Air Grilles ___Yes ___No
- Q: Are the registers, grilles, and diffusers visibly clean?
- Q: Are all the registers, grilles, and diffusers properly reset?
Access and Clean:
Supply Air Plenum ___Yes ___No
Return Air Plenum ___Yes ___No
Q: Is the supply plenum (directly downstream of the air handling unit) free of moisture
stains and contaminants?
Q: Is the return air plenum free of visible dust and debris?
Install Access Panels as Needed ___Yes ___No
Q: Are access panels properly sealed according to the NADCA ACR Standard?
Clean Airstream Side of Heat Exchanger ___Yes ___No
Clean Secondary Heat Exchanger ___Yes ___No
Q: Was proper access made to the heat exchanger?
Remove, Clean and Reinstall
Blower Motor, Housing & Assembly ___Yes ___No
Q: Are the blower blades clean and free of oil and debris?
Q: Is the blower compartment free of visible dust and debris?
Clean Evaporator Coil, Drain and Pan * ___Yes ___No
Q: Which cleaning method was used?
Type 1: Contact vacuum, brush, or air wash
Type 2: Use coil cleaning chemicals and water
Q: Are both sides of the cooling coil visibly clean?
Q: If you point a flashlight into the cooling coil, does light shine through? It should
if the coil is clean.
Q: Are the coil fins straight and evenly spaced (as opposed to being bent over and
smashed together).
Q: Is the coil drain pan clean and draining properly?
Replace air filter ___Yes ___No
Q: Do filters fit properly and are they the proper efficiency as recommended by the HVAC system manufacturer?
Wash air cleaner ___Yes ___No
If no to any of the services listed above, why not? ______________________________________________________________________
______________________________________________________________________
5. Is the HVAC system operating properly after cleaning? ___Yes ___ No
*Please note: Cleaning the cooling coils is required by the NADCA Standard – Assessment, Cleaning & Restoration of HVAC Systems (ACR). However, some state regulations specify that only licensed HVAC mechanical contractors may clean cooling coils. Be certain to ask your NADCA member company representative if his/her company will clean the coils of your HVAC system, and by which method.
