The single most common question after a homeowner discovers mold in their HVAC system is: what's this going to cost me? Honest answer — it depends. But the range in Los Cabos generally falls between USD $800 for a localized mini-split treatment and USD $6,000+ for a central-air system with extensive duct contamination. Understanding what drives that spread helps you budget realistically and spot suspiciously low quotes.
What actually drives the cost
Five factors move the number: (1) the size and type of the system — a single mini-split head is very different from a home with ducted central air and multiple zones; (2) how far contamination has spread beyond the unit itself into ducts, insulation, and wall cavities; (3) whether laboratory air testing is included before and after; (4) the number of technicians and hours required for HEPA containment and removal; (5) whether ozone shock treatment and post-remediation testing are part of the scope.
What should always be included
A legitimate HVAC mold remediation quote includes a written scope of work, containment materials, HEPA air scrubbing, physical removal or treatment of affected components, coil and drain pan sanitization, duct treatment, ozone shock disinfection, and final air-quality verification. If any of these are missing, you're comparing an incomplete service to a complete one.
Red flags on low quotes
Quotes that come in dramatically below others usually skip containment (spreading spores into clean areas), skip lab testing (no proof the mold is actually gone), or use consumer-grade ozone generators too weak to sanitize a real HVAC system. The cheapest option almost always becomes the most expensive when the problem returns in three months.
When to call ProZone
If you want a transparent, itemized quote for HVAC mold remediation, message us on WhatsApp at +52 624 141 6627. Founded in 2014 after Hurricane Odile, ProZone is OSHA and Cal OSHA certified and has remediated some of the most iconic homes across Los Cabos, San José, and Todos Santos. Ask us — we know how.
Jose Lima — Founder, ProZone
OSHA & Cal OSHA certified mold inspector. Serving Los Cabos and Todos Santos since 2014. Member, National Ozone Technician Association.
