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    Average homeowner rating
  • Verified reviews icon11
    Verified biohazard remediation services reviews

Top-Rated Biohazard remediation specialists in Pasadena - Updated Nov 2026

Avatar for LeakSafe Homes
LeakSafe Homes
5.0(
101
)
Toxicity and Mold - Removal

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 Pure Restoration Inc
Pure Restoration Inc
4.4(
84
)
Asbestos - AbatementToxicity and Mold - Removal

Serving Pasadena, CA and surrounding areas

Approved

In business since 2001

Free estimates

Emergency services offered

"We were happy to find Tommy and his crew. We had some water damage in the lower level of our home after the heavy rains this year. We had mold in the carpet and water coming in through the porous tile. Tommy gave us a fair quote and their staff handled the process professionally. There were no surprise charges and the crew showed up on time and the office quickly responded to our emails. They did the build back after the mold remediation and we could not be happier with the way it turned out. They did a beautiful job. I highly recommend Pure Restoration if you are dealing with a mold takeover in in your home!"
Mold Remediation
Mold Remediation
Mold Remediation
Mold Remediation
Mold Remediation

+96

Response time1 day
Response rate100%
8 neighbors recently requested a quote
Avatar for Prestige Environmental
Prestige Environmental
5.0(
7
)
Asbestos - AbatementToxicity and Mold - Removal

Serving Pasadena, CA and surrounding areas

Approved

Super Service Award Winner

Free estimates

Emergency services offered

Warranties offered

"Alex was great from the first time I called for a quote. I hired Alex and his team for Asbestos Abatement and mold remediation. Alex and his team were professional and were a pleasure to work with. What impressed me the most was their integrity. After their job had been completed there was something our painter pointed out to us that required for them to return and they came back as soon as they could to fix the issue. They were a pleasure to work with and their price was more than fair compared to others."
Water mitigation/ mold remediation
Acoustic removal
Water mitigation/ mold remediation
Acoustic removal
Water mitigation/ mold remediation

+30

7 neighbors recently requested a quote
Recommended by100%of homeowners
Avatar for NexGen Property Restoration
NexGen Property Restoration
5.0(
9
)
Toxicity and Mold - Removal

Serving Pasadena, CA and surrounding areas

Approved

In business since 1993

Free estimates

Emergency services offered

"We had a water damage issue at our home and when Nexgen Property Restoration opened up the walls it turned into a much bigger problem than expected. They found mold and other issues we had no idea were there. Their team handled everything from remediation to drying out the house and made the whole process smooth. They worked directly with our insurance company and got everything covered which was a huge relief. They even helped us out by waiving our $2,500 deductible which says a lot about how they take care of their customers. They may be a newer company but they clearly have years of experience behind them. Highly recommend Nexgen Property Restoration you won?t regret it."
26 neighbors recently requested a quote
Avatar for French estates junk removal services
French estates junk removal services
5.0(
25
)
Hazardous Waste Removal

Serving Pasadena, CA and surrounding areas

Approved

Free estimates

Emergency services offered

Small jobs welcome

"Excellent service! The team was professional, quick to respond, and made the entire junk removal process quick and stress-free. They worked efficiently, cleaned up afterward, and offered fair pricing. I highly recommend them to anyone needing reliable junk removal services"
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 had a great experience with Mold Inspection Pro. They were very professional, knowledgeable, and responsive. Not only did they provide a detailed report, but they took the time to walk me through their findings and to discussion my options. If the need arises, I will definitely use their services again!"
Moldy Wall AC Unit
AC Wall Unit
AC Wall Unit
AC Wall Unit
AC Wall Unit

+28

Response time30 mins
Recommended by100%of homeowners
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

When interacting with Envirotech Restoration, you'll notice that we're particularly focused on the principles of quality workmanship, timely completion, competitive pricing and integrity in all our business dealings. We combine knowledge and research with our extensive practical experience to ensure a specialized approach for your project needs. Contact us today for a fair and accurate estimate of your project. We look forward to adding you to our long and growing list of happy customers. \n \n

Response time1 day
2 neighbors recently requested a quote
Recommended by100%of homeowners
Pacific Environmental & Abatement Solutions Inc
4.6(
10
)
Mold & Toxic Material TestIndoor Air Quality TestingMold & Toxic Material Test - For Business+3 more

Serving Pasadena, 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
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Biohazard Remediation FAQs, answered by experts

While mold in the bathroom can appear black, it isn’t always the dangerous black mold strain Stachybotrys chartarum. This type of mold typically appears after a flood or a long-term leak. If you suspect black mold, you should get it tested by a local mold testing service to determine whether it’s safe to remove yourself.

Fiber cement siding is resistant to mold and mildew, so it won’t be as affected by these problems as something like wood siding. However, damage to your siding or improper installation can still lead to water getting behind your siding, in which case, mold can grow behind it and damage other building materials. Contact a siding repair professional if you suspect you have a leak.

Mold can begin growing in as little as one to two days after your ceiling has been exposed to water. Mold grows and spreads quickly and can cause serious health problems. Always ensure areas with leaks are fully dried out, and any damaged material is replaced to discourage mold growth.

Air purifiers are meant to kill airborne mold, along with pollen and dirt. Air purifiers are a good option if you have allergies and need a whole-home solution, whereas dehumidifiers are best for naturally damp areas (like a bathroom). Consider getting an indoor air quality test to determine if an air purifier is right for you.

If a professional mold inspector finds mold in your home, they’ll conduct mold testing to determine the type of mold species and the number of spores in your home. This plan will help develop a remediation plan, where a mold remediation specialist will remove the spores from your home. Since mold remediation costs the average homeowner $2,225, it’s best to treat mold at the first sign rather than waiting.

The Pasadena, CA homeowners’ guide to biohazard remediation services

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