thorough visual inspections is the best way to verify the cleanliness
of your heating and cooling system. All portions of the system should
be visibly clean -- i.e., such that you cannot see any debris with
the naked eye. Have the contractor show you the following areas
in your system after the cleaning work to verify that the job was
the contractor clean the entire heating and cooling system,
including ductwork and all components?
the heat exchanger surface visibly clean?
both sides of the cooling coil visibly clean?
you point a flashlight into the cooling coil, does light shine
through the other side? It should if the coil is clean.
the coil fins straight and evenly spaced (as opposed to being
bent over a smashed together)?
the coil drain pan completely clean and draining properly?
Doors and Covers
newly installed access doors attached with more than justduct
tape (i.e.,screws, rivets, mastic)?
your air vents been firmly reattached to the walls, floors,
and / or ceilings?
you answered "No" to any of the above questions, this
may indicate a problem with the job. Call Dirty Ducts
and get the job right the first time.