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Best mold testing and remediation specialists near Arcata, CA

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

Avatar for North State Pure Maintenance
North State Pure Maintenance
5.0(
6
)
Mold & Toxic Material TestIndoor Air Quality TestingToxicity and Mold - Removal+2 more

Serving Arcata, CA and surrounding areas

Approved

In business since 2024

Free estimates

Emergency services offered

"They did an amazing Job. They truly cared about helping me and my daughter, Ron from North State, really gave me valuable information, and called several times to check on my satisfaction, what an amazing Service, I am not worried about living in my place because I know , Ron and his team eliminated, my severe mold problem, which was getting my 6 year old daughter sick. I am truly grateful for their help."
Response time11 hrs
Response rate88%
26 neighbors recently requested a quote
Avatar for Walker's Home and Commercial Inspections
Walker's Home and Commercial Inspections
4.7(
6
)
Indoor Air Quality TestingMold & Toxic Material TestMold & Toxic Material Test - For Business

Serving Arcata, CA and surrounding areas

In business since 2017

Free estimates

Emergency services offered

"I hired Walker's Home & Commercial Inspections because I was putting my older home on the market and wanted to know what repairs, if any, needed to be completed before selling. Mr. Walker pointed out several deficiencies. There was earth/wood contact below the kitchen window and some wiring that was done incorrectly. These items were corrected and the home is on the market. Thanks to the thorough inspection, a buyer will know the home was inspected and repairs done."
Inspecting
At an inspection
Response time7 hrs
Response rate100%
Recommended by100%of homeowners
Avatar for Landmark Energy Upgrades
Landmark Energy Upgrades
4.8(
59
)
Indoor Air Quality TestingMold & Toxic Material TestMold & Toxic Material Test - For Business+2 more

Serving Arcata, CA and surrounding areas

In business since 2009

Free estimates

Emergency services offered

"My friends had installed a new HVAC system and they told me that the system improved the monthly utilities bills and the house is always warm. I contacted the company that made the installation and I spoke to Ezra. Ezra provide me with some basic information about them and about the system that they installed at my friend’s house and he asked me to pass by and look at my house in order to determine what will be the best system for my house. Ezra arrived to my house and checked the existing system and he explained to me the differences between that one to the new one. I decided to hire them and to go for the system. Before the installation, Ezra came over and did a special test that took close to 4 hours. He covered all the windows and ducts and ran a special machine that supposed to check and detect any leaks of energy. The end results of the test came out good and this was a good relief. The installation of the HAVC system went smoothly and without any issues. The work took 2 days and the new system start to prove itself. I must admit that I’m happy that I was referred to this company and that I hired them for this work.
"
Cool Roof Install
Energy Upgrade
HVAC Air Duct
Home Energy Audit
Energy Upgrade Contractors

+6

Recommended by98%of homeowners
Avatar for 911 Restoration of Redding - Unlicensed Contractor
911 Restoration of Redding - Unlicensed Contractor
5.0(
1
)
Mold & Toxic Material TestToxicity and Mold - Removal

Serving Arcata, CA and surrounding areas

In business since 2019

Free estimates

Emergency services offered

"Very hardworking, punctual and polite. Isaac is clearly very knowledgeable in his field. He genuinely cares about getting the job done correctly and efficiently. Price was fair. I would definitely call him again and recommend his services to others. Top notch!"
Recommended by100%of homeowners
Avatar for Mega Power Electric, Inc
Mega Power Electric, Inc
5.0(
191
)
Dry-rot, Water or Pest Damage - Major Repair

Serving Arcata, CA and surrounding areas

In business since 2000

Free estimates

Emergency services offered

"Mega Power Electric is an excellent company to work with. Gary and his team are knowledgeable, honest, and will go out of their way to get the job done right. We installed panels and solar battery storage unit in our home and we're reaping the benefits of being clean and green."
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+32

Recommended by100%of homeowners
Avatar for AAA CARPET CLEANING
AAA CARPET CLEANING
4.1(
22
)
Dry-rot, Water or Pest Damage - Major Repair

Serving Arcata, CA and surrounding areas

In business since 1980

Free estimates

Emergency services offered

"I needed cleaning done at my Mom's house. Her tile and carpet came out beautifully! The person on the phone was very helpful and the tech that came to the house was very professional and knowledgeable. I am very pleased with this company. They were also running a cleaning special so I got 25% off!"
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Recommended by84%of homeowners
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Mold Testing and Remediation FAQs, answered by experts

The CDC does not consider diatomaceous earth toxic to humans or animals, though it can cause skin, eye, and lung irritation when handled without PPE. It's important to note that non-food-grade diatomaceous earth can be toxic when handled or consumed, so homeowners should only purchase the food-grade option.

Yes, if installed correctly. Moisture barrier padding blocks dampness from reaching the padding core and subfloor, where mold loves to grow, especially in humid environments like basements. However, poor installation with gaps or loose seams can do the exact opposite, trapping moisture and creating mold problems. So, make sure to do your installation carefully or hire a professional.

Underfloor insulation alone will not cause moisture and mold, but improper installation can. Although the purpose is to seal any drafts, your subfloor still needs ventilation. If you seal the area too tightly and prevent all airflow, this can cause moisture to get trapped. This moisture eventually leads to mold and—if your floors are wood—rotting.

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.

Black mold on wood is a very serious issue. Besides compromising the structural integrity of the wood, it poses significant health risks. Stachybotrys chartarum, commonly known as toxic black mold, produces mycotoxins that can lead to respiratory issues, allergies, skin irritations, and other health problems. If left untreated, it can spread rapidly and compromise the structural stability of the affected wooden structures. Immediate remediation and preventive measures are essential to mitigate the risks associated with black mold on wood.

The Arcata, 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.