Provider profile
Mold Zero Services
Provider snapshot
What this listing says
San Marino and Pasadena homeowners who want a fog-based remediation that avoids tearing out drywall, backed by third-party lab testing and a 1-year regrowth guarantee.
Best for
- Homeowners in San Marino, Pasadena, and surrounding LA County cities dealing with mold after a water leak or rainstorm damage.
- Property owners who want to avoid demolition—the fog-based method treats mold without tearing out drywall in most cases.
- People with mold sensitivity or allergies who need a same-day process using non-toxic fogging agents.
- Landlords and property managers who need fast turnaround to minimize tenant displacement.
- Commercial property owners, including medical offices, who need remediation that works around occupants.
About this company
Mold Zero Services operates out of San Marino and serves Los Angeles County. They run a fogging-based remediation process rather than the traditional tear-out-and-rebuild approach. Their 5-step method uses HEPA vacuuming, damp wiping, and two rounds of fogging—first with SPOR-KLENZ to kill mold, then with GOLDSHIELD to create a barrier against regrowth. They claim to have treated over 1,000 homes.
The fogging approach is what stands out. Most jobs finish the same day, and occupants can re-enter within hours. Several reviewers specifically chose Mold Zero after a previous company did unnecessary demolition or failed to solve the problem. The company sends samples to a third-party lab for pre- and post-remediation testing and offers a 1-year guarantee against regrowth, conditional on no new water intrusions. They do not handle water damage cleanup directly—they refer that work to a partner company called Masters of Moisture.
Mold Zero is locally owned and NORMI-accredited. The company is BBB-listed and serves both residential and commercial properties, including sensitive environments like medical offices. They offer free on-site inspections.
With 4.6 stars across 33 Google reviews, the rating is solid but the review volume is modest. Nearly every review is 5 stars, with only one recent negative. The small total count means the rating could shift noticeably with a few bad experiences.
Services
Service area
Mold Zero is headquartered in San Marino, California. They serve Los Angeles County broadly, with location pages for Los Angeles, Pasadena, Glendale, Burbank, Long Beach, Hollywood Hills, San Gabriel, Santa Monica, Newport Beach, and Anaheim. The jump from San Marino to Newport Beach and Anaheim in Orange County is notable—confirm travel fees for locations far from their base.
Review consensus
Eric is named in at least six reviews as the standout field technician. Reviewers describe him as detail-oriented, efficient, and capable of handling entire jobs solo when needed. Noel (identified as owner in multiple reviews, last name McNown) draws praise for inspections, estimates, and responsiveness—he came back on the 4th of July to finish one job. Jessica at the front desk is called out for patience and personal knowledge of mold exposure. Jordan is praised alongside Eric as a reliable field partner. Eddie Frencher is named by three reviewers (Veronica, Nicole, Dana) for knowledgeable inspections of commercial buildings and hard-to-solve moisture issues. Multiple reviewers say Mold Zero was cheaper than competitors and completed work faster than estimated. The fogging method and same-day completion are recurring praise themes. Two reviewers (Vanessa Gex, Eugene G) specifically came to Mold Zero after another company failed to solve their problem.
1 found across 33 total reviews at 4.6★. Rachel Li paid a $75 rush fee for test results promised in 1-2 business days. After five days and multiple follow-up calls, results came Monday evening at 5:30 PM. She called the experience unprofessional and questioned why the rush fee exists. The business did not respond to this review.
The company has no owner response to its only recent negative review (0% response rate on negatives). This is worth noting because the complaint—charging extra for rushed results and not delivering on time—is the kind of specific, verifiable claim that a response could clarify. The lack of response leaves the complaint uncontested. On the positive side, the company has a clear pattern of winning over customers who were burned by competitors. At least three reviewers describe hiring Mold Zero after another company did unnecessary demolition or failed to remediate properly.
Eric (field technician — praised in 6+ reviews for detail, efficiency, and problem-solving). Noel McNown (owner/inspector — praised for responsiveness, estimates, and going above and beyond). Jordan (field technician — praised as reliable partner to Eric). Jessica (front desk — praised for patience and personal mold exposure knowledge). Riley (inspector — praised for knowledge, named in one negative for rush fee issue). Eddie Frencher (inspector — praised for commercial inspections and thoroughness). David (technician — praised in older review). Anthony (crew member — praised). Mathew (crew member — praised). Raymond (older reviews — praised for compassion and repeat treatments). Rusty Tweed (identified as owner by one reviewer).
Ask for Eric if you want the most-praised field technician. Get your inspection from an independent assessor if the conflict of interest concerns you—Mold Zero does use a third-party lab, but they still control the initial assessment. Confirm test result timelines in writing before paying any rush fees.
Keep in mind
- Mold Zero does both testing and remediation, which creates a conflict of interest. They use a third-party lab for sample analysis, but the decision about whether you need remediation comes from the same company that would do the work. Consider getting an independent inspection first.
- One reviewer paid a $75 rush fee for expedited test results (promised in 1-2 days) and did not receive them for five days. No owner response was posted to that complaint. Ask upfront about realistic turnaround times for lab results before paying for rush service.
- They do not do water damage cleanup themselves. They refer that work to Masters of Moisture, a separate company. If you have active water intrusion, you will need to coordinate with two companies.
- The 1-year regrowth guarantee excludes new water intrusions. If the moisture source is not fixed first, the guarantee will not cover recurring mold.
- With only 33 total reviews, the sample is small. The 4.6-star rating is strong but could shift quickly.