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

Avatar for Mold Neutralizers
Mold Neutralizers
4.8(
72
)
Mold & Toxic Material TestMold & Toxic Material Test - For Business

Serving Rancho Santa Margarita, CA and surrounding areas

Approved

In business since 2014

Emergency services offered

Small jobs welcome

"Mold Neutralizers is the best in the business! I should know because mold has displaced me three times. For years I suffered through unusual and devastating health symptoms. When I finally had an appointment with a functional medicine doctor, she told me I had mold toxicity, and that I should have my home inspected. I could not believe it. My house was pristine, but I called Mold Neutralizers because I was very sick and needed answers. It was the best decision I have ever made because mold was found hiding under my bathroom vanity and in my HVAC system. From that moment on Mold Neutralizer went to work. Their expert team isolated the mold, and I hired them to remediate. At every turn they went over and above to help me. I sincerely thank every one of them. Because of them I feel safe again. Mold Neutralizers are experts in their field. They are honest. They are caring. Dont hesitate to call them! Ronda"
Mold Inspection
Mold Inspection
Mold Inspection
Moisture detector
Single Family Home

+5

Response time2 days
10 neighbors recently requested a quote
Recommended by92%of homeowners
Pacific Environmental & Abatement Solutions Inc
4.6(
10
)
Mold & Toxic Material TestIndoor Air Quality TestingMold & Toxic Material Test - For Business+6 more

Serving Rancho Santa Margarita, CA and surrounding areas

Approved

In business since 2006

Free estimates

Emergency services offered

"This is my first time leaving a review for a company as I've never felt the need to, but using Pacific Environmental I feel I should share with my home owners. My husband and I bought out first home which we love but a room had acoustic ceiling. I reach out to PEAS, which everyone in the office was very helpful and patient on guiding me through this experience. Their scheduling was amazing as I was dealing with Closing Escrow and moving my family in. Once they arrived, they informed me on the scope of work and what they would be doing and what to expect, this being my 8-year-old son room so I was a bit worried on hazardous material that was being removed and used. CONTAINMENT WAS AMAZING! I was so happy and felt so safe on how they kept the area and the protection they took to take care of my family and themselves. My kids thought the crew looked pretty cool too, haha. CLEANING WAS AMAZING! Work was conducted upstairs and they went the extra mile and cleaned everything they touched, I really appreciate that, as it again made me feel secure and safe. PEAS left a memorial memory our kids still talk about. I strongly recommend them and would use them again."
1 neighbors recently requested a quote
Recommended by87%of homeowners
Avatar for Homquest, Inc.
Homquest, Inc.
5.0(
8
)
Mold & Toxic Material Test

Serving Rancho Santa Margarita, CA and surrounding areas

Approved

In business since 2010

Offers commercial services

Customers say: Quick response

"Had water heater leak that caused mold on the platform. After having mitigation done, Homquest came out to do air test for mold. Reporting negative results. Highly recommend! Professional, honest and reliable!"
Mold Testing
Collect Samples
Response time9 hrs
Response rate92%
4 neighbors recently requested a quote
Avatar for Hindsight Environmental
Hindsight Environmental
5.0(
7
)
Asbestos - Testing

Serving Rancho Santa Margarita, 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 Pure Mold Masters
Pure Mold Masters
5.0(
8
)
Mold & Toxic Material TestToxicity and Mold - RemovalMold & Toxic Material Test - For Business+1 more

Serving Rancho Santa Margarita, CA and surrounding areas

Approved

Super Service Award Winner

In business since 2011

Free estimates

Warranties offered

"Pure mold Masters is a game changing process. Saves money, time, and the headache of having contractors in the house for days if not more. My rental home had mold issues. And my tenants son was have allergic complications. Once Pure Mold Masters came in and did there magic all issues were resolved. Iâ m forever great full. Thanks Pure Mold Masters!!!"
House Fogs
House Fogs
House Fogs
House Fogs
Fog

+6

Response time9 hrs
Response rate92%
6 neighbors recently requested a quote
Avatar for Express Dry
Express Dry
5.0(
12
)
Mold & Toxic Material TestIndoor Air Quality TestingMold & Toxic Material Test - For Business+2 more

Serving Rancho Santa Margarita, CA and surrounding areas

Approved

In business since 2015

Free estimates

Emergency services offered

"I am giving ExpressDry a 5.0 rating because they deserve it. They showed up on Thanksgiving week, great customer service, a big THANK YOU to Moy Munoz for making us feel like we were more than just a customer, i genuinely feel he wanted nothing but the best for us. He was quick to answer questions, explained the process in detail, his workers that came out and did the whole mitigation was awesome. They came in and got it done without any complications. Fast response, professional, quick, clean, friendly, helpful, I definitely recommend these guys! Thank you so much for all your hard work!"
Additional Photos
Additional Photos
Additional Photos
Additional Photos
Additional Photos

+9

Response time1 day
Response rate100%
5 neighbors recently requested a quote
Avatar for Hamilton Testing Services, Inc.
Hamilton Testing Services, Inc.
4.9(
19
)
Asbestos - TestingToxic Lead - Testing

Serving Rancho Santa Margarita, 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%
54 neighbors recently requested a quote
J & J Environmental Construction Corp.
3.7(
44
)
Asbestos - Abatement

Serving Rancho Santa Margarita, 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
...
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