Top-rated mold testing and remediation specialists.

Get matched with top mold testing and remediation specialists in Pasadena, CA

Enter your zip and get matched with up to 5 pros

Need a pro for your mold testing and remediation project in Pasadena, CA?

Select your specific project to find the pro for you.

Verified Reviews for Mold Testing And Remediation pros in Pasadena, CA

*The Angi rating for Mold Testing And Remediation companies in Pasadena, CA is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Mold Testing And Remediation needs.

*The HomeAdvisor rating for Mold Testing And Remediation companies in Pasadena, CA is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Mold Testing And Remediation needs.

Last update on October 13, 2025

Find Mold testing and remediation specialists in Pasadena

Avatar for Bye Bye Mold, Inc.
Bye Bye Mold, Inc.
4.8(
61
)
Indoor Air Quality TestingMold & Toxic Material TestMold & Toxic Material Test - For Business

Serving Pasadena, CA and surrounding areas

Approved

In business since 2002

Emergency services offered

Credit card accepted

"George was very professional and easy to speak with. Unfortunately, I was looking for mold remediation but he is a mold tester. He sent me referrals which was really great! I would definitely hire him in the future."
Air Sample
Moisture Meter
Mold on shoes
Mold Growth under sink
Response time3 hrs
Recommended by96%of homeowners
Request Quote
Avatar for LeakSafe Homes
LeakSafe Homes
5.0(
101
)
Toxicity and Mold - RemovalToxicity and Mold - Removal - For Business

Serving Pasadena, 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

1 neighbors recently requested a quote
Request Quote
Avatar for Pure Restoration Inc
Pure Restoration Inc
4.4(
84
)
Toxicity and Mold - RemovalDry-rot, Water or Pest Damage - Major RepairToxicity and Mold - Removal - For Business

Serving Pasadena, CA and surrounding areas

Approved

In business since 2001

Free estimates

Emergency services offered

"The job went smoothly and was completed in a timely manner. The places where there was mold were identified and the drywall and/or insulation were removed. Any mold on wood framing were scrubbed."
Mold Remediation
Mold Remediation
Mold Remediation
Mold Remediation
Mold Remediation

+96

Response time1 day
Response rate100%
9 neighbors recently requested a quote
Request Quote
Avatar for Santa Clarita Mold Inspection
Santa Clarita Mold Inspection
5.0(
16
)
Indoor Air Quality TestingMold & Toxic Material TestMold & Toxic Material Test - For Business

Serving Pasadena, CA and surrounding areas

Approved

In business since 2024

Free estimates

Small jobs welcome

"Santa Clarita Mold Inspection (SCMI) came to the pad on time, was clean and polite, and got the job done right and fast. What a refreshing experience. Would recommend these guys 11 out of 10 times."
Crawl space
Crawl space
Exterior window
Exterior window
Air vent

+9

Response time3 hrs
Response rate100%
1 neighbors recently requested a quote
Request Quote
Avatar for Mold Solutionz 24/7
Mold Solutionz 24/7
4.2(
35
)
Mold & Toxic Material TestMold & Toxic Material Test - For Business

Serving Pasadena, CA and surrounding areas

Approved

In business since 1995

Free estimates

Emergency services offered

"All work was completed on time with exceptionally high-quality work. All workers were introduced to me, making me comfortable with strangers in my home. All workers wore masks and used all health recommendations. I was brought into every step of the process and the process was explained. The total cost was as estimated. The price was about half of the estimate of other contractors. I was very satisfied. I recommend this business."
demo
pic 2
Response time11 hrs
Response rate89%
Recommended by89%of homeowners
Request Quote
Avatar for Mold Inspection Pro
Mold Inspection Pro
5.0(
16
)
Mold & Toxic Material Test - For Business

Serving Pasadena, CA and surrounding areas

Approved

In business since 2019

Free estimates

Credit card accepted

"I used this company for mold testing at my house. They came the same day! They were very professional, checked everything right away gave me good results for the next step. Would definitely recommend them for any mold inspection!"
Moldy Wall AC Unit
AC Wall Unit
AC Wall Unit
AC Wall Unit
AC Wall Unit

+28

Response time30 mins
Recommended by100%of homeowners
Request Quote
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 Pasadena, 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
Request Quote
Avatar for Moldoovia
Moldoovia
4.5(
51
)
Mold & Toxic Material TestMold & Toxic Material Test - For Business

Serving Pasadena, CA and surrounding areas

Approved

Free estimates

Credit card accepted

Offers commercial services

We are a locally owned and operated company that values honesty and integrity and treats your home as if it were our own. We offer a variety of General Contractor services that are customizable to each individual project. You will find us to be competitively priced, paying close attention to the details of each and every project that we are involved with. We look forward to building lasting relationships and guarantee your satisfaction!

Mold inspection!
Mold inspection!
Mold inspection!
Mold clearance test
Mold clearance test

+4

Recommended by88%of homeowners
Request Quote
Avatar for Mold Test Company NO CA
Mold Test Company NO CA
3.8(
119
)
Mold & Toxic Material TestIndoor Air Quality TestingMold & Toxic Material Test - For Business

Serving Pasadena, CA and surrounding areas

Approved

In business since 2018

Emergency services offered

Small jobs welcome

"Every step of the way was punctual, professional and well explained. I would recommend Mold Test Company to anyone."
Drywall
Drywall
Drywall
Insulation
Insulation

+71

Response time1 day
243 neighbors recently requested a quote
Recommended by81%of homeowners
Request Quote
Avatar for Envirotech Restoration
Envirotech Restoration
4.9(
8
)
Indoor Air Quality TestingMold & Toxic Material Test

Serving Pasadena, CA and surrounding areas

Approved

In business since 2019

Free estimates

Emergency services offered

"Very approachable and the work performed was top notch."
Response time1 day
2 neighbors recently requested a quote
Recommended by100%of homeowners
Request Quote
...
Showing 1-10 of 322
Mold Testing and Remediation questions, answered by experts

Some of the most common signs of sensitivity or illness from mold include congestion, eye irritation, difficulty breathing, and headaches. These symptoms may not lead to long-term health issues. However, some types of mold, like toxic black mold, can make you quite ill. You may experience respiratory issues, skin rashes, or neurological issues after exposure because of the toxicity. Infants, people with compromised immune systems, and older adults can suffer the most severe reactions.

Yes, drywall mud can get moldy—though the presence of moisture is required for this to happen. That’s why the best way to keep your powdered drywall mud fresh for as long as possible is to keep it in dry storage conditions. If you live in a humid area, it might not make sense to stockpile a lot of powdered drywall mud before you’re ready to use it. As for premixed drywall mud, avoid opening the container until you’re ready to use it—and don’t expect it to last longer than six months.

The pink mold appears because of the presence of a naturally occurring airborne bacteria called serratia marcescens. When this bacteria lands on a moist surface, it multiplies, creating the pink film. To reduce the ability of this bacteria to multiply, use a bathroom exhaust fan to reduce humidity in the bathroom. Regularly clean the interior of the shower with a disinfectant as well.

Wood stain is not considered toxic after it dries. The solvents in wood stain are what give off volatile organic compounds (VOCs), which are toxic, but these dissolve as the product dries, leaving behind a non-toxic product. When working with wood stain, you should always wear a respirator and rubber gloves to protect yourself, but once it dries fully, it’s not toxic, according to the manufacturer’s instructions.

It is generally not safe to live in a house with smoke damage, as even minor damage can pose long-term health hazards and structural risks. While it might seem safe temporarily depending on the severity, you should relocate if there is major damage or visible soot. Smoke smells and residue contain dangerous particulates and chemical compounds, including carcinogens, that are hazardous to breathe and can cause respiratory issues. These signs of damage are not always visible but can have dangerous short-term and long-term effects on your health, belongings, and your home's structural materials. You should not stay in the house until a trained professional from a smoke remediation or restoration company has assessed the damage and determined it is safe to return. Your insurance company may cover the cost of alternative housing while the professional work is completed.

The Pasadena, CA homeowners’ guide to mold testing and remediation services

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

See all articles