Top-rated mold and asbestos pros.

Get matched with top mold and asbestos pros in Signal Hill, CA

Enter your zip and get matched with up to 3 pros

Matching on HomeAdvisor

Share some details icon
Share some details about your home project.
Match with local pros icon
Within moments, match with highly-rated local pros.
Compare quotes icon
Compare quotes and choose the best pro for the job.

Top-Rated Mold and asbestos pros in Signal Hill - Updated Nov 2026

Laroue Environmental, LLC
4.7(
73
)
Asbestos - Testing

Serving Signal Hill, CA and surrounding areas

Approved

In business since 2014

Free estimates

Emergency services offered

"If you binge watch home improvement shows on TV like I do, the word, "asbestos" can send you and your budget into a cold sweat! William and his team at Laroue Environmental, LLC did a great job thoroughly explaining the asbestos testing process to me as well as my options should the results come back positive. As a first time home owner myself, the process of renovating can be a bit stressful. Working with Laroue Environmental, LLC was anything BUT stressful. If you do sign up for their testing services, you're in good hands! Good luck on your next home renovation project and stay safe out there!"
Response time2 days
22 neighbors recently requested a quote
Recommended by92%of homeowners
Mereson Environmental Services
4.9(
40
)
Asbestos - Testing

Serving Signal Hill, CA and surrounding areas

Approved

In business since 2012

Free estimates

Customers say: Quality work

"Geoffrey was great, he was very responsive, made himself available the very next day due to our urgency, and communicated all the information we needed to know and the updates along the way. He tested our new home for asbestos as well as lead paint. The value was worth the money, we now have our peace of mind about our new home and we would highly recommend Geoffreyâ s services to anyone else!"
Response time7 hrs
21 neighbors recently requested a quote
Recommended by84%of homeowners
Avatar for LeakSafe Homes
LeakSafe Homes
5.0(
101
)
Toxicity and Mold - RemovalToxicity and Mold - Removal - For Business

Serving Signal Hill, CA and surrounding areas

Approved

In business since 2025

Free estimates

Emergency services offered

"Our attic developed mold after years of small roof leaks that we kept patching temporarily. LeakSafe Homes handled the mold remediation in our Calabasas home with incredible professionalism. They removed contaminated insulation, treated the wood framing, and helped us understand how ventilation contributed to the issue. Very knowledgeable company."
project photos
Dieter K.  Redondo beach
Dieter K.  Redondo beach
Dieter K.  Redondo beach
Dieter K.  Redondo beach

+42

2 neighbors recently requested a quote
Avatar for Home Biotesting
Home Biotesting
4.6(
51
)
Asbestos - Testing

Serving Signal Hill, 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 Mold Solutionz 24/7
Mold Solutionz 24/7
4.2(
35
)
Mold & Toxic Material TestMold & Toxic Material Test - For Business

Serving Signal Hill, CA and surrounding areas

Approved

In business since 1995

Free estimates

Emergency services offered

"They are very kind people who genuinely want to help to make your environment cleaner and safe at a reasonable cost. The job was done fairly quickly, and I was given specific details as to what they were doing and why every step of the way. Andrea is a sweetheart, and Miguel and Nick are very respectable, easy going people. More than likely I will be using their services again and/or refer them to a friend."
demo
pic 2
Response time11 hrs
Response rate89%
Recommended by89%of homeowners
Avatar for KB Environmental, Inc.
KB Environmental, Inc.
4.2(
96
)
Asbestos - Abatement

Serving Signal Hill, CA and surrounding areas

Approved

In business since 2012

Free estimates

Customers say: True professional

"I contacted KB Environmental for a quote for a client. I passed the information on to the client. Once escrow closes they will most likely be using KB Environmental for the work. It will be to remove an asbestos vent flue on a water heater."
Working on Scissor Lifts
Working on Scissor Lifts
Full Containment
Removal Of ceiling
Removal of Ceiling

+27

Response time1 day
22 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 Signal Hill, 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%
1 neighbors recently requested a quote
...
Showing 1-10 of 239

The Signal Hill, CA homeowners’ guide to mold and asbestos services

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