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Find Mold & toxic material testers in Hesperia

Avatar for 911 Certified Mold Testing LLC
911 Certified Mold Testing LLC
5.0(
8
)

Serving Hesperia, CA and surrounding areas

Approved

In business since 1995

Free estimates

Emergency services offered

"Kayla is so wonderful to work with. She is so professional and knows her stuff. Iâ ve used her in 2 projects already and my clients and I are extremely satisfied with her service. Her turn around mold air testing is fast. I will definitely recommend her and will continue to use her service."
Response time4 hrs
Response rate93%
Recommended by87%of homeowners
Avatar for Socal Express Restoration and Construction Inc.
Socal Express Restoration and Construction Inc.
New to Angi

Serving Hesperia, CA and surrounding areas

Approved

In business since 2020

Free estimates

Emergency services offered

We are an ethical, honest and professional company. We are easy to communicate with. Always working with you until the job is done right and to your specifications. When working with our company you can expect integrity, prompt service and superior customer service. Always leaving the job site clean . We take pride in our services and enjoy making clients repeat clients. You can count on us to get the job done right the first time. We will meet with you at your convenience and will not keep you waiting. \n\nCall us today for your free estimate. You'll be pleased you did. Thank you

Response time2 days
Avatar for THE MOLD DETECTIVE
THE MOLD DETECTIVE
4.8(
16
)

Serving Hesperia, CA and surrounding areas

In business since 2003

Emergency services offered

Credit card accepted

"I have been working with Ron McProud since around 2004 when he found extensive mold in my home after heavy rains led to water penetration. Ron identified the scope of damage, specified the protocol for repair and monitored a third party mold remediation contractor to make sure that they fully-remediated. He issued a report that gave me (and the eventual buyer of the house) complete comfort that the mold had been remediated. At my next home, Ron found mold in our air conditioning return vent and again specified the correct scope of repair (which led to a significant savings, because the water remediation contractor was attempting to perform more work than required). He again provided expert advice regarding what furniture to keep, what to dispose, how to clean, etc. When we moved again to another house and had a blackwater flood from the downstairs bathroom, there was no question that we would call Ron. He came out, tested the area and this time (thankfully!) found no mold at all. It was good to knowo that we have Ron as a resource. He has become our trusted advisor with respect to all water intrusion. Whenever anyone asks for a mold inspector/water intrustion expert, I give them Ron McProud's contact info without any hesitation. In fact, I gave his name to the association of a new 50 unit condo project that was having mold issues, and he quickly assessed the problem and provided a cost-effective solution, reducing the anxiety of the new homeowners who had moved into the project. Ron, thank you for always being responsive, calm and efficient. While I hope to have no more water issues (!), I am glad to know that you are there if we need you."
Recommended by91%of homeowners
Avatar for John Mold Testing, Inc.
John Mold Testing, Inc.
5.0(
15
)

Serving Hesperia, CA and surrounding areas

In business since 2025

Free estimates

Emergency services offered

"I had a great experience with John Mold Test Providers. They were very nice, professional, and easy to work with from start to finish. They explained everything clearly, answered all my questions, and made the whole process stress-free. I really appreciated their professionalism and how respectful they were throughout the visit. Highly recommend their services!"
Mold
Mold
Mold
Mold
Mold

+139

Response time2 days
Avatar for ProDetect Mold Inspection
ProDetect Mold Inspection
5.0(
12
)

Serving Hesperia, CA and surrounding areas

In business since 2000

Small jobs welcome

Credit card accepted

"I had a smooth and stress-free experience with ProDetect Mold Inspection. Their surface mold testing was thorough and well-documented. Moisture detection helped identify hidden issues early. Air quality testing provided reassurance about my indoor environment. The technician was friendly, punctual, and knowledgeable."
Simi Valley, CA
Simi Valley, CA
Simi Valley, CA
Simi Valley, CA
Simi Valley, CA

+3

Avatar for Circle Vision Restoration Corp
Circle Vision Restoration Corp
4.6(
8
)

Serving Hesperia, CA and surrounding areas

In business since 2002

Free estimates

Emergency services offered

"Mold was found behind the walls in our master bathroom during demolition for a remodel. We contacted 3 companies for mold remediation estimates. Circle Vision wasn't the cheapest, but their review of the site and estimate was the most thorough, and they made us confident that they would do their best to reduce the amount of additional repairs that would be required after remediation was over. Carlos was the lead for our project and he did a great job explaining every step of the work and was very easy to get ahold of for scheduling. Gus Jr. and Gus Sr. conducted the remediation at our house for 2 days. They arrived on time each day, protected the floor with paper, vaccumed and swept at the end of each day, and left the house cleaner than when they left. They were very professional and answered any questions we had. They left an air scrubber at the house for a few days to make sure all traces of mold were gone. They left the dining room wall covered with plastic so our toddler and cats wouldn't get in to the unfinished bathroom. When the inspector returned, he found everything was done to the letter and we passed inspection with no problems.


"
Wilshire Project
Perlstein Project
Beverly Hills Home
Recommended by85%of homeowners
Avatar for MBE Environmental & Abatement
MBE Environmental & Abatement
5.0(
7
)

Serving Hesperia, CA and surrounding areas

In business since 2022

Free estimates

Warranties offered

"Was thankful for all the help received from the MBE team on our mold remediation and . They worked efficiently and were super responsive over text. They were great to work with and the techs were very courteous. It was a pleasure!"
Recommended by100%of homeowners
Avatar for American Mold Inspections
American Mold Inspections
5.0(
3
)

Serving Hesperia, CA and surrounding areas

In business since 2002

Free estimates

Emergency services offered

"John Starkey was excellent. He was prompt and courteous and really explained in detail what I needed to know. He was very reasonably priced, as I had called several different other companies and not only was he the least expensive, he was able to come out right away! I would highly recommend using him if you have any concerns with mold. He's worth the money for the peace of mind!
"
Recommended by100%of homeowners
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FAQs for mold & toxic material test projects in Hesperia, CA

Some companies offer a no‑cost phone or video consultation that screens for red flags. If the discussion points to a real issue, the pro will recommend a paid on‑site inspection. The complimentary call clarifies whether you need full testing, but it isn’t a substitute for samples, lab work, or a written report. Always confirm what the free service covers before you schedule.

A standard inspection, which includes basic air and surface samples, takes an average of two hours. If the pro needs to probe hidden spaces, such as wall cavities or ductwork, plan on up to six hours. Extra time allows the inspector to reach tight areas, collect additional samples, and document findings. Lab analysis is a separate process and often adds several business days to the overall timeframe before you receive the full report.

Mold thrives where moisture lingers and air flow is poor. Common hotspots include bathroom walls, kitchen backsplashes, window sills, HVAC vents, fireplaces, crawl spaces, and enclosed attics. Check these areas regularly—especially after leaks or high‑humidity weather—to catch growth early and avoid costly repairs.

Unchecked mold can knock 20% to 37% off a home’s market value because buyers worry about hidden damage and health risks. Even after remediation, visible staining or a history of major moisture issues can still lower offers and prolong the time on the market. Addressing mold quickly protects both your property’s structural integrity and its resale appeal.

The Hesperia, CA homeowners’ guide to mold & toxic material tests

From average costs to expert advice, get all the answers you need to get your job done.