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Find Mold & toxic material testers in Katy

Avatar for LoneStar Mold Testing
LoneStar Mold Testing
4.9(
110
)

Serving Katy, TX and surrounding areas

Approved

In business since 2016

Free estimates

Credit card accepted

"Lance was very professional and informative! He was very quick to fit us in to his schedule to test for toxic mold! He got the test results back quickly and gave us his recommendations within 24 hours! I highly recommend LoneStar Mold Testing."
Response time4 hrs
7 neighbors recently requested a quote
Recommended by88%of homeowners
Avatar for Aggie Inspector Group, LLC
Aggie Inspector Group, LLC
4.8(
136
)

Serving Katy, TX and surrounding areas

Approved

In business since 1993

Free estimates

Emergency services offered

"Joe and his wife provided excellent service. He knew almost immediately what the problem is. They are very knowledgeable on this mold issue I have. I'm awaiting his report for the results of lab tests and contractor referrals so I can get started on the repairs needed. I highly recommend them."
Floor of return air plenum
Mold on surface of duct work
Stachybotrys on wall surface
Response time5 hrs
Recommended by96%of homeowners
Avatar for IAQ Analytical
IAQ Analytical
4.8(
40
)

Serving Katy, TX and surrounding areas

Approved

In business since 2017

Free estimates

Emergency services offered

"I had mold under my refrigerators and I had called several companies, and they all quoted me these ridiculously high prices . I got the call from Joel Fallas and he came over here within an hour. He was so quick. He looked at the problem, I said I was going to pay you for this, and told me what to do to get rid of the mold. I tried to pay him and he said no. He said I will not take your money. I did what he told me to do and I got rid of the mold, and he called me later that day to see how it works and make sure if I was happy,, and I said yes. I just what to tell how honest this man."
Certification Seal from ACAC
Response time1 day
81 neighbors recently requested a quote
Recommended by80%of homeowners
Avatar for Mold Test Company TX
Mold Test Company TX
4.3(
121
)

Serving Katy, TX and surrounding areas

Approved

In business since 2008

Emergency services offered

Small jobs welcome

"Jeremiah came out and tested the air and moisture and other items to determine if I had mold in my basement. After getting the test results there was evidence of mold and he recommended a company that provides a do it yourself kit for mold remediation. (Not cheap). After getting the items and realizing that there was more work, it would have been better for me to let my insurance company handle this as I do have coverage for mold/fungi. Though having a professional do the work is expensive, from what Jeremiah mentioned, it does not guarantee that the work will be complete or the source of the problem taken care of. He mentioned most companies will take care of the mold but not necessarily the cause of the mold. For this I would have to contact another company."
Mold Testing
Mold Testing
Mold Testing
Mold Testing
Mold Testing

+71

Response time11 hrs
Response rate100%
310 neighbors recently requested a quote
Avatar for Rainbow Restoration of Magnolia TX
Rainbow Restoration of Magnolia TX
5.0(
2
)

Serving Katy, TX and surrounding areas

Approved

In business since 2024

Emergency services offered

Warranties offered

For nearly 40 years Rainbow Restoration, a Neighborly company, has made disasters disappear! We have provided professional restoration services for jobs big and small. We understand how critical it is to get people back in their homes and companies back in operation quickly.\n\nThat's why Rainbow Restoration uses only the best equipment, innovative technologies and a built-in accountability process to assure every job is done right. Setting the highest standards in water, fire, smoke and mold damage restoration, where customer anxieties can run high, requires a continuous focus and dedication to self-analysis and improvement.\n\nOnce Rainbow Restoration is on the job, customers can expect quality results and a superior customer experience. Rainbow Restoration sets the benchmark in home restoration and commercial restoration.

Additional Photos
Additional Photos
Additional Photos
Additional Photos
Additional Photos

+8

4 neighbors recently requested a quote
Recommended by50%of homeowners
Avatar for Mold Busters LLC
Mold Busters LLC
5.0(
9
)

Serving Katy, TX and surrounding areas

Emergency services offered

"The inspection went very well and the inspector was very knowledgeable and professional. The inspection uncovered an ongoing problem we were having in a section of our home. The inspector explained the process on how the inspection would be carried out, types and cases of mold, and remediation steps. He was timely, dressed in protective gear and was very careful in our home. The test results we’re back as scheduled and he went through the report with us to ensure we understood the results. Thanks for a professional job well done and for locating and solving our issue."
Recommended by100%of homeowners
Avatar for ADU Water - Fire - Mold - Storm
ADU Water - Fire - Mold - Storm
5.0(
28
)

Serving Katy, TX and surrounding areas

In business since 2011

Free estimates

Emergency services offered

"All Dry was very helpful and professional during repairs after water damage to my home. As a first-time homeowner I was worried, but they were very informative and patient even with my hundreds of questions. They were on time with every appointment and were always in communication with updates. I believe they were very thorough in determining that everything had dried fully and mold would not be an issue. I would absolutely recommend them to anyone; I feel like they went above and beyond."
Recommended by100%of homeowners
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FAQs for mold & toxic material test projects in Katy, TX

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 Katy, TX homeowners’ guide to mold & toxic material tests

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