Zerorez started in 2001 around a patented water treatment idea for carpets and grew into more than 70 franchises in the United States plus outposts in Canada and the UK. For ducts the company uses negative air machines with truck mounted or portable vacuums, rotary brushes and whip lines through every opening, trunk and return, and documents the system with photographs before and after the visit. Quotes are per system rather than per square foot, and the same visit can cover dryer vents.
Convenient for households that already book Zerorez for carpets and want one crew for both, and for allergy sufferers who want visual proof of what came out. Two caveats: the brand suggests duct cleaning every six to eighteen months, which is far more often than the three to five year interval most standards imply, and franchise coverage is uneven, with whole states missing.
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