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Do not assume that all duct cleaning service providers are
equally knowledgeable and responsible. Talk to at least three
different service providers and get written estimates before
deciding whether to have your ducts cleaned. When the service
providers come to your home, ask them to show you the contamination
that would justify having your ducts cleaned.
- Do not hire duct cleaners who make sweeping claims about
the health benefits of duct cleaning -- such claims are
unsubstantiated. Do not hire duct cleaners who recommend
duct cleaning as a routine part of your heating and cooling
system maintenance. You should also be wary of duct cleaners
who claim to be certified by EPA. EPA neither establishes
duct cleaning standards nor certifies, endorses, or approves
duct cleaning companies.
- Do not allow the use of chemical biocides or sealants
unless you fully understand the pros and the cons.
- Check references to be sure other customers were satisfied
and did not experience any problems with their heating and
cooling system after cleaning.
- Contact your county or city office of consumer affairs
or local Better Business Bureau to determine if complaints
have been lodged against any of the companies you are considering.
- Interview potential service providers to ensure:
- they are experienced in duct cleaning and have worked
on systems like yours;
- they will use procedures to protect you, your pets,
and your home from contamination;
- Ask the service provider whether they hold any relevant
state licenses. As of 1996, the following states require
air duct cleaners to hold special licenses: Arizona, Arkansas,
California, Florida, Georgia, Michigan and Texas. Other
states may require them as well.
If the service provider charges by the hour, request an estimate
of the number of hours or days the job will take, and find
out whether there will be interruptions in the work. Make
sure the duct cleaner you choose will provide a written agreement
outlining the total cost and scope of the job before work
begins.
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