The mold remediation industry attracts both dedicated professionals and opportunistic operators. In a market like Los Cabos, where insurance oversight is limited and homeowner urgency is high, vetting matters. Here's how to separate legitimate companies from the rest.
Verify credentials, don't take them at face value
Ask for OSHA and Cal OSHA certification numbers and verify them. Ask for COEPRIS registration in Mexico. Ask which laboratory they partner with for air sampling — a reputable company works with an AIHA-accredited lab and will name it. If credentials are vague or the answer is 'we've been doing this for years,' keep looking.
Demand a written scope of work
Every legitimate company provides a written scope before starting: what will be tested, how containment will be set up, what will be removed versus treated, what antimicrobials will be used, and what post-remediation verification will confirm success. Verbal agreements are how homeowners end up with incomplete work and no recourse.
Ask about testing on both ends
Pre-remediation and post-remediation air testing by an independent lab is the standard. Companies that skip either — 'we can tell just by looking' — are asking you to trust them without proof. Real professionals want lab documentation as much as you do; it protects them from disputes.
Red flags to walk away from
Same-day pressure to sign before you've compared quotes. Wildly low quotes that skip containment or testing. Aggressive fear tactics ('your family will get sick tomorrow'). Refusal to identify the moisture source ('we don't do that'). No physical business address. No references from past Los Cabos clients. Requests for full payment upfront.
Green flags to look for
Transparent pricing with itemized scope. Willingness to explain the process in plain language. References available and reachable. Photographs from past jobs. Bilingual reports. A commitment to identifying and fixing the underlying moisture cause. Membership in professional organizations like the National Ozone Technician Association.
When to call ProZone
If you want to compare quotes from a company willing to be transparent, 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.
