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Best mold testing and remediation specialists near Pasadena, CA

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Top-Rated Mold testing and remediation specialists in Pasadena - Updated Nov 2026

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
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

2 neighbors recently requested a 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

"I definitely recommend Santa Clarita Mold Inspection! I needed a mold inspection and was genuinely impressed with the company from start to finish. They were transparent throughout the entire process, and Nick was thorough, professional, and knowledgeable. Since this was my first time needing these services, I especially appreciated that Nick took the time to explain each step of the inspection process and what I could expect after the testing was completed. I was also extremely impressed with the final report and the level of detail that went into preparing it. The professionalism and thoroughness of the report were incredibly helpful and allowed me to utilize the documentation for legal purposes. Thank you so much to Santa Clarita Mold Inspection, and especially to Nick, for your time, effort, and professionalism. I truly appreciate the quality of service I received and would absolutely use your company again if the need arises. Trustworthy, I highly recommended!"
Crawl space
Crawl space
Exterior window
Exterior window
Air vent

+9

Response time3 hrs
Response rate100%
1 neighbors recently requested a 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
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
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

47 neighbors recently requested a quote
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Mold Testing and Remediation FAQs, answered by experts

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.

Many peel-and-stick wallpapers aren’t moisture-resistant, so if you install them in high-humidity rooms, mold can grow behind the wallpaper. It’s best to reserve peel-and-stick wallpaper for bedrooms, living rooms, and other rooms with lower humidity levels. Not only does this minimize the risk of mold growth, but it also keeps the wallpaper from bubbling or peeling.

Inhaling black mold spores, even from behind walls, can cause people to have a wide variety of potential health issues. Some people may only notice a few breathing problems, while others can become quite sick with symptoms related to severe allergies. Constant exposure to mold spores can lead to lung infections and other long-term health problems. If you believe you have black mold inside your walls, you will want to reach out to a pro for an inspection and for advice on how to take care of the problem before it causes severe illness.

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.

Includes cleaning, removal of contaminated materials, and air filtration.

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.