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  • Verified reviews icon43
    Verified mold testing and remediation services reviews

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

Avatar for Pure Maintenance of Colorado, LLC
Pure Maintenance of Colorado, LLC
4.8(
92
)
Mold & Toxic Material TestToxicity and Mold - RemovalDry-rot, Water or Pest Damage - Major Repair+2 more

Serving Frederick, CO and surrounding areas

Approved

In business since 2018

Free estimates

Emergency services offered

"We hired Pure Maintenance of Colorado after another remediation company failed to properly contain mold during cleanup. Pure Maintenance was everything we needed — professional, knowledgeable, compassionate, and extremely thorough. They spent three full days deep cleaning, doing small-particle removal, and fogging the entire house and ventilation system. What truly matters is the outcome: the air in our home feels fresh and clean, and our child, who has mold sensitivities, has had no reactions since the treatment. The difference is night and day. We are sincerely grateful and give Pure Maintenance of Colorado our highest recommendation."
Chevy City Express equipped with dry-fogging tech
Dry-fogging nozzles in action
Dry fog in action
Start
Almost There...

+35

Response time4 hrs
Response rate94%
14 neighbors recently requested a quote
Mold Testing CO, LLC
4.8(
21
)
Mold & Toxic Material Test

Serving Frederick, CO and surrounding areas

Approved

In business since 2014

Free estimates

Credit card accepted

"Did you know mildew is the gas given off from mold?? Joe offered great advice about the growth of mildew into mold, and my landlord's responsibility to remove it. I feel that he is knowledgable and would perform a thorough inspection. Based on my present economics and quotes from 2 other firms, and not to discount Mold Testing CO at all, I decided on another company. Joe at Mold Testing CO is definitely my second choice."
Response time12 hrs
Recommended by94%of homeowners
Avatar for Aqua Dry Restoration Co LLC
Aqua Dry Restoration Co LLC
4.9(
16
)
Toxicity and Mold - RemovalToxicity and Mold - Removal - For Business

Serving Frederick, CO and surrounding areas

Approved

In business since 2009

Credit card accepted

Offers commercial services

With over 10 years of professional experience, Aqua Dry Restoration Co. has certified professional technicians dedicated to your Water Restoration & Mold Remediation needs. We specialize in the cleanup and restoration of residential and commercial property after water damage. We also provide mitigation services for mold and mildew. Our staff is highly trained in property damage restoration. From initial and ongoing training to regular IICRC-industry certification, rest assured our staff is equipped with the knowledge to restore your property. \n \nWe understand the stress and worry that comes with water or mold damage and the disruption it causes your life and home or business. Our goal is to help minimize the interruption to your life and quickly make it "Like it never even happened." No damage is too large or too small for Aqua Dry Restoration CO. If you would like to schedule service for your home or business, please call today! Visit our website at https://www.aquadryco.com/

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+24

12 neighbors recently requested a quote
Recommended by100%of homeowners
Avatar for Clean Sweep Environmental LLC
Clean Sweep Environmental LLC
5.0(
14
)
Toxicity and Mold - RemovalToxicity and Mold - Removal - For Business

Serving Frederick, CO and surrounding areas

Approved

In business since 2025

Free estimates

Credit card accepted

"Amazing company and team! Very trustworthy and knowledgeable about mold and other hazardous materials. They were very straightforward and honest about the mold issue, removal process, treatment and costs. Definitely recommend them to take care of any incidents involving hazardous materials in your home or business."
Project Photos
7 neighbors recently requested a quote
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Mold Testing and Remediation FAQs, answered by experts

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.

Yes, mold can grow in a wet dryer vent. Mold is a type of fungi, and fungi thrive in warm, moist conditions. Dryer vents need to be aired out so heat can escape and moisture can dry. If your dryer vents aren’t properly vented, the trapped heat and moisture will cause mold to grow, and the mold can spread to the dryer and even your clothes. Not only can this leave a musty smell on your freshly laundered clothes, but—more importantly—it also poses a health risk.

Areas of your home may provide an ideal environment for green or black mold. Most molds love moisture and will thrive in wet or damp areas. Some types of mold, such as Stachybotrys chartarum, grow well on materials commonly used in homes, such as gypsum board and wood. Mold may also grow in areas where there are leaks, such as in bathrooms, kitchens, or basements.

Some mold can look like dust, but most doesn’t. Powdery mildew is often confused with dust as it’s a similar color and grows in a similar way. Some gray molds can look like dust as well, but usually, it’s pretty easy to spot the difference. It’s better to be safe, so if you aren’t completely sure what you’re seeing is dust, call a mold professional to check it out.

Yes. You should use this product in a well-ventilated area because the fumes can be harmful. In addition, the product is poisonous if swallowed, so keep it out of reach of children. Wood finishing products that are oil based can cause irritation to your skin, so you should always wear gloves when handling it.

The Frederick, CO 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.