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Top-Rated Mold & toxic material testers in Sugar Land - Updated Nov 2026

Avatar for IAQ Analytical
IAQ Analytical
4.7(
49
)
Mold & Toxic Material Test

Serving Sugar Land, 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 time11 hrs
Response rate90%
2 neighbors recently requested a quote
Avatar for Aggie Inspector Group, LLC
Aggie Inspector Group, LLC
4.8(
148
)
Mold & Toxic Material Test

Serving Sugar Land, TX and surrounding areas

Approved

In business since 1993

Free estimates

Emergency services offered

"Joe is a stand up guy. Not only did he care about identifying mold in our home but he gave us tons of ideas for how to keep our environment healthy and safe for our family. He also could have made more money because we were considering having him come out a second time to retest some areas but he did want us to have to use our funds unnecessarily so instead he talked us through our issues and helped us come up with a better & more cost effective plan. He is a God send to our family."
Floor of return air plenum
Mold on surface of duct work
Stachybotrys on wall surface
Response time5 hrs
Recommended by96%of homeowners
Avatar for Tox IQ
Tox IQ
5.0(
5
)
Mold & Toxic Material Test

Serving Sugar Land, TX and surrounding areas

Approved

In business since 2025

Free estimates

Small jobs welcome

We pride our company on reliability, great communication, integrity, and quality work. We are experts in our trade and will do our best to keep you as educated as we can on your particular task or project. We look forward to earning your business!

Project Photos
Project Photos
Project Photos
Project Photos
1 neighbors recently requested a quote
Avatar for AJ Environmental Consulting, Inc.
AJ Environmental Consulting, Inc.
4.8(
53
)
Mold & Toxic Material Test

Serving Sugar Land, TX and surrounding areas

In business since 2017

Emergency services offered

Credit card accepted

"My grandmother had some suspicious areas pop up in her home we wanted to have tested for mold. Received a call from the company within seconds after filling out the form (despite being after business hours) the lady we spoke to was very informative and was able to have someone at my Granny’s house at 9am the next morning. Also received a 24hr report turn around. Positive experience with this company!"
Sharing our knowledge
Rebecca Thomas, MAC
Karlin Higgins, MAT
Thermal Image
Thermal Image

+16

Response time1 day
Response rate87%
Recommended by100%of homeowners
Avatar for Elite Mold Testing & Assessment
Elite Mold Testing & Assessment
5.0(
17
)
Mold & Toxic Material Test

Serving Sugar Land, TX and surrounding areas

Free estimates

Emergency services offered

Small jobs welcome

"Rodnie was very nice and very professional. He did a very good job and noticed things I hadn’t seen. He was prompt and I felt confident with the work he did. I would definitely recommend him to anyone needing mold testing."
Damaged insulation
Didn't know we had mold
Didn't know we had mold
Mold hidden within the pantry
Didn't know we had mold

+40

Response time2 days
Recommended by100%of homeowners
Avatar for LoneStar Mold Testing
LoneStar Mold Testing
4.9(
113
)
Mold & Toxic Material Test

Serving Sugar Land, TX and surrounding areas

In business since 2016

Free estimates

Credit card accepted

"Lance was prompt, professional and very knowledgeable as he explained the process of mold testing to me. He patiently and clearly answered my questions, I highly recommend Lone Star Mold Testing."
Response time2 hrs
Recommended by88%of homeowners
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FAQs for mold & toxic material test projects in Sugar Land, 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 Sugar Land, 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.