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Can the company show proof of NADCA
membership and certification?
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How long has the contractor been in the
residential HVAC system cleaning business?
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Can the contractor provide you with
evidence of the current Worker’s Compensation and General Liability Insurance
coverage? (Ask for Certificate of Insurance)
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Does the contractor posses the proper
Licenses that are required by your city or state to perform the work they are
proposing? (Not all cities or states require licenses -
click here to check your state.)
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Will the contractor provide you with 3 to
5 customer references with phone numbers for which they provided service in the
last 30 days?
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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 Assessment, Cleaning &
Restoration of HVAC Systems (ACR) Standard.
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Will the contractor provide you with a
means to conduct a visual inspection at any time during the cleaning? (Mirror
and flashlight, camera or other remote visual systems.)
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Will the contractor be cleaning the
complete system, including coils and fans?
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Will the contracting company actually do
the work? (Some companies subcontract the work to independent contractors. You
will want to apply these guidelines for subcontractors as well.)
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Is the contractor giving you a guaranteed
price before the inspection? This may expose you to extra costs. Finding mold
in the system, damaged fiberglass insulation, cleaning or treating cooling
coils may become add-on costs.
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