Independent Testing. We Never Remediate.
Mold and Asbestos Testing You Can Act On With Confidence
GJ Environmental Testing provides independent mold assessments, asbestos testing, and indoor air quality testing for homeowners, buyers, realtors, and property managers across Southern California and the San Antonio Hill Country. Accredited labs, plain language reports, and official clearance certifications.
OR CALL US AT
(832) 202-6653
Fast & Reliable Service
When you contact us, we respond quickly and arrive ready to begin your mold and asbestos testing.
NORMI Certified & Compliant
Our work follows strict industry standards and local rules, with no shortcuts and no exceptions.
Accredited Lab Results
Every sample is analyzed by an accredited lab, giving you precise, dependable results you can act on.
Locally Owned & Operated
Owner operated in Texas and California, we combine professional service with work you can trust.
Schedule Your Mold or Asbestos Testing Today!
For more information or to schedule an inspection, call (832) 202-6653 or fill out the form below. Our team will contact you shortly after receiving your request.


DESIGNED TO KEEP YOU SAFE
Our Services
We test. We never remediate. Mold and asbestos testing lead our work, alongside clearance, air quality, real estate, water damage, lead, and environmental testing, so you get independent answers you can act on.
Mold Inspection
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A visual assessment plus air and surface sampling to find mold you can see, and mold you can not, with moisture readings and a written report.
Asbestos Testing
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Safe sampling of popcorn ceilings, floor tile, insulation, and drywall with accredited lab analysis. Required before demolition and most renovations.
Mold Testing
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Air and surface samples are collected and analyzed to determine the type and level of mold present in your property.
Post Remediation Clearance
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Independent testing after mold remediation, with an official clearance certification that documents the space is ready to occupy again.
Indoor Air Quality Testing
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Air sampling and assessment for homes and offices with unexplained odors, allergy complaints, or concerns after a fire or flood.
Water Damage Inspection & Assessment
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We identify moisture intrusion, evaluate the extent of damage, and outline the steps needed to prevent further structural issues.
Lead Testing
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We test surfaces and materials for lead contamination to help identify potential health risks in the property.
Real Estate Inspections
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Buyer and seller ready mold and asbestos testing, with reports delivered on a timeline that matches your escrow.
Environmental Testing
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Indoor air and surface testing helps detect contaminants and provides insight into the overall environmental safety of the space.
About Us:
Texas & California’s Independent Mold & Asbestos Testing Company
GJ Environmental Testing, LLC was founded in Lake Elsinore, California, and serves property owners across Riverside County and Orange County, plus San Antonio and the Texas Hill Country from our base in Boerne.
We specialize in independent mold, asbestos, lead, and indoor air quality testing for residential and commercial properties, using precise field methods and accredited labs so every result is documented, defensible, and easy to understand.
We test. We never remediate or abate, so our findings are unbiased, and if your building is fine, we will tell you so.
Before You Demo or Renovate
Asbestos Was Never Banned. Testing Before Demolition Is Mandatory.
The EPA’s phased ban on asbestos was announced and never implemented, so buildings from before the 1990s can still contain it in ceilings, floor tile, insulation, and joint compound. OSHA requires those materials to be treated as asbestos containing until an inspection says otherwise.
In Southern California, Rule 1403 requires a written survey before demolition or renovation can begin, and fines for skipping it run into the thousands per violation. A survey costs far less, and samples can be in the lab within the week.
Asbestos TestingGet a Free Estimate
What are the signs that I may need a mold inspection?
What happens during a professional mold inspection?
What is the difference between mold inspection and mold testing?
Do I need mold testing if I can already see mold?
Can mold make you sick?
Hasn’t asbestos been banned?
No. The EPA’s phased ban was announced and never implemented, and asbestos is still used in some industries. Materials in older buildings often contain it, and you can not identify asbestos by sight. Suspect materials have to be sampled and tested by a lab.
How long does testing take, and when do I get results?
A sampling visit usually takes 30 to 60 minutes. Lab results typically arrive in 3 to 5 business days, with a written report and a clearance certification when it applies.
Do I have to test for asbestos before demolition or renovation?
Usually, yes. OSHA and federal NESHAP rules call for an inspection before demolition or renovation. In Southern California, South Coast AQMD Rule 1403 requires a written asbestos survey before demolition and most renovations, with limited exceptions for some single family homes. Texas has parallel requirements through the TCEQ.
Do you inspect hidden mold behind walls, ceilings, or under flooring?
What happens if I skip asbestos testing?
Disturbed asbestos is a health risk for everyone in the building, skipping a required survey can bring fines for each violation, and contractors, realtors, and property managers can be held liable. The survey report is the documentation that protects you.
General FAQ
FAQ about our Company in Texas & California
We help property owners understand mold, asbestos, and other environmental concerns through detailed inspections and accredited lab testing. Every report explains what we found, where we found it, and what to do next.
Our Blog

Signs You Need a Mold Inspection Done in Texas & California Now
In the climate of Texas & California, where humidity

Do You Need Specific Mold Tests in Texas & California Inspections?
In Texas & California’s climate, mold thrives in humid bathrooms

How Long Does a Mold Inspection Take in Texas & California?
In Texas & California’s climate, where humidity from neighborhoods like
Based in Boerne, TX & Lake Elsinore, CA
We serve San Antonio, Boerne and the Texas Hill Country, plus Lake Elsinore, Riverside County and Orange County in California. Our services include mold inspection, mold testing, water damage inspection and assessment, asbestos testing, lead testing, and environmental testing for homes and businesses.
- Riverside County, CA
- San Antonio, TX
- Boerne, TX
- Lake Elsinore, CA
- New Braunfels, TX
- Temecula, CA
- Murrieta, CA
- Corona, CA
- Kerrville, TX
- Orange County, CA
We're Available for our Inspection & Testing Services
Contact Us Today!
For more information about our services or to schedule an appointment, call us at (832) 202-6653 or complete the form on our contact page, and we’ll get back to you as soon as possible.
OR CALL US AT
(832) 202-6653