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    Average homeowner rating
  • 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 had a great experience with Pure Maintenance. We had the most direct contact with Ryan, Jeremy, and Rolando and they were all fantastic. There was great communication throughout the process of our water and mold remediation. We always knew what to expect and when and they worked with us to customize the perfect plan for our specific situation."
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%
13 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/

1
2
3
Additional Photos
Additional Photos

+24

11 neighbors recently requested a quote
Recommended by100%of homeowners
Avatar for S and S Home Inspections
S and S Home Inspections
5.0(
42
)
Indoor Air Quality TestingMold & Toxic Material TestMold & Toxic Material Test - For Business

Serving Frederick, CO and surrounding areas

Approved

In business since 2013

Credit card accepted

Offers commercial services

"Scott is very thorough and informative. He also seems very honest and friendly. He had a very quick response time to my request for quotes and I got an appointment right away. The turnaround time was also very quick for the test results as well. I think his prices are comparable to that of what others offer to test or even lower. I like that he only does testing and not remediation so that there's no conflict of interest."
Thermostat Problems
Combustion Air Analyzer
Southwest View
UAV Photos
Baseboard Thermal

+2

Response time4 hrs
Response rate88%
Recommended by97%of homeowners
Avatar for Accountable Home Services
Accountable Home Services
4.7(
16
)
Toxicity and Mold - RemovalToxicity and Mold - Removal - For Business

Serving Frederick, CO and surrounding areas

Approved

In business since 2016

Free estimates

Emergency services offered

"Just rating on the initial meeting to get an estimate for mold removal, Jose was wonderful in explaining what needed to be done, how he came to those conclusions, and many suggestions. I was very pleased!"
Bathroom
Disinfecting
Disinfecting
Mold damage
Mold damage

+14

Response time6 hrs
Response rate90%
Recommended by57%of homeowners
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Mold Testing and Remediation FAQs, answered by experts

Professional carpet cleaning can cause mold if the job is not done properly. There are two ways this can happen—if your carpet cleaner fails to dry the carpet properly, or if your carpet cleaner uses an excessive amount of water during the cleaning process. Mold can grow wherever moisture is present, so make sure you hire a pro who knows the process inside and out.

Several factors affect the color of mold, including humidity levels, age of the mold, and amount of light it receives. A patch of mold that starts out green may darken and turn black as it ages. A species of mold may be green if growing in one environment, but be black in another environment. Color usually isn't a reliable way to determine mold species or risk.

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.

No, not all black mold is toxic. Although people often refer to stachybotrys chartarum as toxic black mold, there is little evidence that any one type of black mold has more toxicity than another. People who have an allergy to black mold would be more likely to have a dangerous reaction after inhaling it. Long-term exposure to black mold spores can lead to severe infection and disease. Some people only have minor health problems after black mold exposure. Ultimately, toxicity is rare with any kind of mold, but it is possible, so always take the appropriate precautions.

Yes, carpet mold can spread if not addressed properly or quickly. Mold can spread to underneath the carpet, impacting the subfloor or attached walls. Mold and mildew can spread within the first 72 hours, so it is important to address the problem quickly and remove any affected carpet. 

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.