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

"I worked with Robert, who gave me a thorough inspection with a comprehensive explanation of the whole inspection process. He even followed up when I had a roof leak issue after my inspection to see if any further testing was needed. I appreciate the time and care Bye Bye Mold gave in addressing concerns I had and giving me peace of mind."
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

"Customer service was excellent and service was on time/efficient. Pricing was competitive as well."
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(
15
)
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%
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

"Anthony and team were very responsive, professional, and prompt. They came out immediately for a quote and they coordinated with me to start the next day. Answered all the questions that I have. I recommend them!"
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

"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
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 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
Avatar for Night And Day Restoration LLC
Night And Day Restoration LLC
5.0(
5
)
Mold & Toxic Material TestIndoor Air Quality TestingMold & Toxic Material Test - For Business

Serving Pasadena, CA and surrounding areas

Approved

In business since 2023

Free estimates

Emergency services offered

Night & Day Restoration LLC specializes in water damage restoration and professional mold testing. Whether you're dealing with a leak, flooding, moisture concerns, or suspected mold, our team will assess the situation, explain what we find, and recommend the right next step.\nWe provide water extraction, structural drying, moisture detection, HEPA air filtration, mold air and surface testing, odor treatment, and structural cleaning. Our team is IICRC Water Restoration Technician (WRT) certified, and we pride ourselves on fast communication, detailed documentation, honest recommendations, and treating your home like it’s our own.\n

26 neighbors recently requested a quote
Request Quote
...
Showing 1-10 of 319
Mold Testing and Remediation questions, answered by experts

Professionals suggest through ventilation, source removal, or filtration systems.

Yes. Black stains are more than an eyesore. Some black stains can pose health concerns, especially for those with asthma, allergies, or other respiratory conditions. Some stains can also damage the brick’s structural integrity, harming the mortar and resulting in more expensive repairs.

Efflorescence itself won’t turn into mold, but it can cause moisture problems, which can lead to mold. It’s important to address an efflorescence problem as soon as possible, as mold can pose health risks and even compromise the structure of your home.

Any unexplained smell in your house should be investigated. However, some home odors are "red flag" worrisome because they pose immediate health and safety risks. Odors should be taken seriously when accompanied by headaches, nausea, or lightheadedness. If you smell an egg-like aroma, this is probably natural gas. You should leave the home immediately, and  contact your gas company.  

The difference between mold and mildew is that mildew is a mild type of mold, whereas mold can be used to describe many different types of fungus. In general, mold is more dangerous than mildew. If you spot mold in your home, you will need a professional mold remediation specialist to help clean and remove it.

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