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Top-Rated Mold and asbestos pros in Rancho Cucamonga - Updated Nov 2026

Avatar for Home Biotesting
Home Biotesting
4.6(
51
)
Asbestos - Testing

Serving Rancho Cucamonga, CA and surrounding areas

Approved

In business since 2015

Free estimates

Credit card accepted

"They are very patient and helpful. They tested asbestos and created report for me within a week during Christmas. Many thanks to Oren."
Project Photos
Project Photos
Project Photos
Project Photos
1

+20

Response time2 days
2 neighbors recently requested a quote
Recommended by95%of homeowners
Avatar for 911 Certified Mold Testing LLC
911 Certified Mold Testing LLC
5.0(
8
)
Mold & Toxic Material TestIndoor Air Quality TestingMold & Toxic Material Test - For Business

Serving Rancho Cucamonga, CA and surrounding areas

Approved

In business since 1995

Free estimates

Emergency services offered

"A few months ago I used 911 certified mold testing for my home they were referred to me by my plumber. I had a great experience dealing with this company they were very professional and knowledgeable about mold testing. They were also reasonable in their pricing! I highly recommend using this company for mold testing."
Response time4 hrs
Response rate93%
1 neighbors recently requested a quote
Avatar for Hindsight Environmental
Hindsight Environmental
5.0(
7
)
Asbestos - Testing

Serving Rancho Cucamonga, CA and surrounding areas

Approved

Credit card accepted

Offers commercial services

If you are planning a renovation, demolition, or repair, you need clear answers fast. Hindsight Environmental provides independent asbestos, lead, and mold testing with fast scheduling, rapid laboratory turnaround, and straightforward reports so you can keep your project moving.\n\nWe specialize in asbestos and lead testing, from individual materials to pre-renovation surveys and lead inspections. Every inspection is performed by an owner, and results and reports are typically delivered within 24–48 hours.\n\nWe test and consult only — we do not perform abatement or remediation. Our findings are independent and focused on giving you accurate answers, not selling you cleanup work.\n\nWhen asbestos, lead, or mold is identified, we clearly explain the results and what they mean so you can make an informed decision and keep your project moving.

Avatar for Hamilton Testing Services, Inc.
Hamilton Testing Services, Inc.
4.9(
19
)
Asbestos - TestingToxic Lead - Testing

Serving Rancho Cucamonga, CA and surrounding areas

Approved

Super Service Award Winner

In business since 2020

Free estimates

Emergency services offered

"Hamilton's price was competitive. The phone representative sound professional and courteous. However, the technician they sent seem very inexperience. He was performing the work (collecting asbestos samples) via Facetime with another senior technician. Also, he only brought a 2-step ladder trying to climb and pull himself up into the attic; he requested to come back the next day, which I'm not available. I ended up borrowing a 3-step ladder from the occupant for the technician. It was risky seeing him pulling himself up into the attic. On his way down, I have to spot him landing his foot on the ladder since the borrowed ladder was still not tall enough."
Team members ready to test!
Pop-Corn Acoustic Ceiling
Response time12 hrs
Response rate86%
57 neighbors recently requested a quote
J & J Environmental Construction Corp.
3.7(
44
)
Asbestos - Abatement

Serving Rancho Cucamonga, CA and surrounding areas

Approved

In business since 2006

Free estimates

Small jobs welcome

"Great price for the competition. Wrecked the ceilings, but since the law requires a separate company for asbestos you get screwed. If the person removing it was also the person repairing it I am sure it would go much better."
Response time3 days
22 neighbors recently requested a quote
Recommended by89%of homeowners
Avatar for Hippo Home Inspections
Hippo Home Inspections
4.9(
153
)
Mold & Toxic Material TestIndoor Air Quality TestingMold & Toxic Material Test - For Business

Serving Rancho Cucamonga, CA and surrounding areas

Approved

Super Service Award Winner

In business since 2021

Emergency services offered

Small jobs welcome

"Dave knew I was concerned about toxic mold ~ I had flooding damage and I was having nose bleeds. He was so kind about my plight and fit me in very quickly. He took air samples, swabs for mold, and a sample for asbestos testing. I got all the answers I needed in a timely manner. He explained parts of the process that might interest me in my specific situation. He was so respectful and understanding regarding my stress and anxiety over my rental unit. I donâ t see any possible reason why I would use anybody except Dave if I need these services again. I highly recommend him. You cannot go wrong with Dave. Thank you, Dave, for being so helpful during such a hard time."
Response time4 hrs
Response rate89%
113 neighbors recently requested a quote
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