★ Certified Mold & Environmental Inspection Since 1998  |  ACAC & IICRC CertifiedServing Orange County & Southern California  |  (949) 239-3727
GPMI mold inspection serving Orange County and Southern California
Service Areas

Serving Orange County & Southern California

Based in Irvine, we provide certified, independent mold and environmental inspection across Orange County and into Los Angeles, Riverside, San Bernardino, and San Diego counties. We inspect and test only, never remediate.

Where we work

Local, certified inspection wherever your property is

From the coastal cities to the inland and hillside communities, you get the same independent, accredited-lab inspection. Pick your county or city below, or contact us and we will confirm the soonest available appointment.

By county

Counties we serve

Los Angeles County

Los Angeles area cities

Serving the Los Angeles County communities we cover most often.

Why GPMI

Independent, so the findings stay honest

Wherever your property sits, we inspect and test only and never sell remediation, so what our report says is driven by the property, not by a cleanup we are trying to sell. That independence, backed by accredited-lab analysis and our certifications, is why homeowners, buyers, attorneys, physicians, and insurers rely on our findings.

No remediation upsellAccredited-lab resultsCertified since 1998
Joseph Gutierrez, GPMI founder and Council-certified Structural Mold Investigator
Reviews

Rated 4.9 across 158 Google reviews

Orange County homeowners, buyers, and property managers on the inspection, the report, and the straight answers.

Read Our Reviews
Questions

Service area FAQ

Where we work and the conditions we see across Southern California.

Which areas do you serve?
Orange County and the surrounding Southern California region, including Los Angeles, Riverside, San Bernardino, and San Diego counties. We are based in Irvine, and we have city pages for the communities we serve most often. If your city is not listed, call us, because the list reflects where we work most rather than the limit of where we go.
Do you charge extra to travel outside Orange County?
Tell us the address when you call and we will give you a single itemized price that includes everything, with no travel surprise afterward. We work across five counties routinely and we would rather quote your property accurately than publish a zone map that does not fit real journeys.
Is mold really a problem in a climate as dry as Southern California?
Yes, and the dry climate is part of why it goes unnoticed for so long. Mold does not need humid weather, it needs a water source, and a slab leak, a failed shower pan, an air conditioning condensate line, or a roof penetration will feed growth inside a wall regardless of what the weather is doing outside. Homeowners here often assume it cannot happen, which is exactly why the problem is usually well established by the time anyone looks.
Why do coastal properties seem to have more of it?
Persistent marine layer humidity, salt air on building envelopes, and the coastal habit of leaving windows open all combine to keep materials damper for longer. Add the older construction stock in places like Laguna Beach and parts of Newport Beach, where original single pane windows, minimal ventilation, and decades of accumulated repairs are common, and you have conditions that hold moisture in materials that were never designed to dry quickly.
Our home is newer, master planned construction. Surely that is not an issue?
It is a different issue, not an absent one. Newer tract construction is built tighter, which means less accidental ventilation and less drying capacity when something does get wet. What we find in newer Orange County homes is concentrated in predictable places: second floor bathrooms over living space, water heater closets, air conditioning condensate lines, and shower pan failures that leak slowly for months before anything appears on a ceiling below.
When is the worst time of year for mold here?
The weeks after the winter and spring rains, because that is when roof, window, and envelope failures reveal themselves, and because material that got wet in January is still wet in February. The second window is late summer, when air conditioning systems run continuously and condensate problems appear. If you had rain intrusion this winter and did nothing, that is the call to make now rather than next winter.
Does a slab foundation make it worse?
It changes where the problem hides. Slab construction is common across Orange County, and a slab leak, meaning a supply or drain line failure under the concrete, releases water into the slab and into the base of walls, where it wicks upward and is invisible until flooring or baseboard shows it. Warm spots on the floor, an unexplained rise in the water bill, and the sound of running water with everything off are the early signs worth acting on.
Do you cover Los Angeles County?
Yes. We work throughout Los Angeles County, including Pasadena, Santa Monica, Culver City, Marina del Rey, Torrance, and the Palos Verdes peninsula, and we carry the same certifications, the same accredited laboratory, and the same independence there as in Orange County.
Do you work in areas affected by the recent wildfires?
Yes. Post-fire smoke residue and volatile compound testing in homes that did not burn is work we do across the region, alongside mold testing where firefighting water was involved. If your property is in or near a burn area and you are dealing with an insurer or a restoration contractor, independent testing before and after cleanup is the documentation that keeps that process honest.
My property is outside the cities you list. Will you still come?
Ask us. We serve five counties and the published city list reflects where we work most frequently rather than a boundary. Call with the address and we will confirm coverage, the soonest available appointment, and the price before you commit to anything.

Not sure if we cover your city?

Contact us and we will confirm coverage and book you the soonest available certified, independent inspection.

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