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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) |
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Can the contractor provide you with 3 to 5 customer references with phone numbers for projects of similar size and scope of work which they provided service in the last year? |
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Does the contractor have written safety, respiratory, and confined space programs in addition to OSHA compliance reports? |
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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 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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Will the company be assigning an Air Systems Cleaning Specialist (ASCS) to your project that will be responsible for the complete project? |
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If there is any remediation of mold or other biological contamination does the company have a Ventilation System Mold Remediator (VSMR) on staff. |
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