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Find Mold & toxic material testers in Longmont

Avatar for Colorado Mold Services, LLC
Colorado Mold Services, LLC
4.8(
157
)

Serving Longmont, CO and surrounding areas

Approved

In business since 2012

Emergency services offered

Credit card accepted

"I worked with the team of John, Greg and Francisco. John initiated the process with the initial questions and customer service. He deferred to Greg as the work order begin to materialize and i had questions that required field expertise. Greg was very helpful and knowledgeable. Finally, Francisco was equally valuable in the process. He actually spotted another area with mold within the garage ceiling that a competing company did not. The team realized i had not budgeted for the garage and helped come up with a fair price for their services. Throughout the experience, this team was excellent. Highly recommend for anybody needing remediation services."
Response time3 hrs
Response rate89%
Recommended by96%of homeowners
Avatar for Pure Maintenance of Colorado, LLC
Pure Maintenance of Colorado, LLC
4.9(
77
)

Serving Longmont, CO and surrounding areas

Approved

In business since 2018

Free estimates

Warranties 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...

+2

Response time4 hrs
Response rate94%
6 neighbors recently requested a quote
Mold Testing CO, LLC
4.8(
19
)

Serving Longmont, 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 Mold Test Company Colorado
Mold Test Company Colorado
4.3(
61
)

Serving Longmont, CO and surrounding areas

Approved

In business since 2008

Emergency services offered

Small jobs welcome

"I thought he did a good job explaining what he did do but very disappointed they didn't explain that you had to pay a lot extra money to actually find out what kind of mold if any you had. The $199.00 fee they only looked for mold & tested the air quality. If they found any mold it cost a lot more to find out what type. He did say we had mold in our crawl space but not what kind, that cost more money. Overall good for what he did do."
Mold Testing
Mold Testing
Mold Testing
Mold Testing
Mold Testing

+71

Response time1 day
103 neighbors recently requested a quote
Recommended by83%of homeowners
Avatar for Enviocore LLC
Enviocore LLC
4.8(
16
)

Serving Longmont, CO and surrounding areas

Approved

In business since 2014

Free estimates

Emergency services offered

"Great service and very knowledgeable. Provided us with input and talked about options we could consider based on different outcomes. I particularly liked that less-invasive options were considered when gathering test samples so that we didn't have holes in our walls while planning for next steps. I would definitely contact Enviocore if we ever have another water issue arise."
Residential Mold Locatoins
Asbestos Locations in Homes
Residential Lead-Based Paint Locations
Residential Renovation / Demolition
Mold Growth in Bathroom Caulking

+43

Response time5 hrs
1 neighbors recently requested a quote
Recommended by87%of homeowners
Avatar for S and S Home Inspections
S and S Home Inspections
5.0(
38
)

Serving Longmont, CO and surrounding areas

Approved

In business since 2013

Credit card accepted

Offers commercial services

"Scott and Tony provided great information and excellent customer service during their radon testing services. They were prompt and communicative. Highly recommended!"
Thermostat Problems
Combustion Air Analyzer
Southwest View
UAV Photos
Baseboard Thermal

+2

Response time4 hrs
Response rate88%
Recommended by97%of homeowners
Rex Environmental, LLC
5.0(
5
)

Serving Longmont, CO and surrounding areas

Approved

In business since 2017

Free estimates

Credit card accepted

Maintaining a safe and healthy environment on your Denver property starts with finding a service provider with experience and expertise you can trust. That requires both confidence and accuracy in testing services. With Rex Environmental, you’re ensured both. Our state licensed and insured inspectors provide thorough testing services for mold, lead, and asbestos, providing same day results. Plus, our testing methods have been proven effective with years of successful services in the Denver area. For a team you can trust and results that speak for themselves, look no further than Rex Environmental.

Avatar for Skyline Property Services
Skyline Property Services
4.8(
3
)

Serving Longmont, CO and surrounding areas

Approved

In business since 2019

Free estimates

Small jobs welcome

"Scott takes the time to explain how the systems work and had insight for necessary repairs needed to get the home up to code. He took the time I needed to make me comfortable in my decision to purchase. He is knowledgeable and thorough."
Thermal Imaging
Home Inspection
Response time3 hrs
Recommended by100%of homeowners
Avatar for ALLCO Restoration Services
ALLCO Restoration Services
5.0(
3
)

Serving Longmont, CO and surrounding areas

Approved

In business since 2022

Free estimates

Credit card accepted

ALLCO Restoration Services is committed to excellence in every aspect of our business. We uphold a standard of integrity bound by fairness, honesty, and personal responsibility. Our distinction is the quality of service we bring to our customers. Accurate knowledge of our trade combined with ability is what makes us true professionals. Above all, we are watchful of our customers' interests, and make their concerns the basis of our business.

Response time8 hrs
9 neighbors recently requested a quote
Recommended by100%of homeowners
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FAQs for mold & toxic material test projects in Longmont, CO

Some companies offer a no‑cost phone or video consultation that screens for red flags. If the discussion points to a real issue, the pro will recommend a paid on‑site inspection. The complimentary call clarifies whether you need full testing, but it isn’t a substitute for samples, lab work, or a written report. Always confirm what the free service covers before you schedule.

A standard inspection, which includes basic air and surface samples, takes an average of two hours. If the pro needs to probe hidden spaces, such as wall cavities or ductwork, plan on up to six hours. Extra time allows the inspector to reach tight areas, collect additional samples, and document findings. Lab analysis is a separate process and often adds several business days to the overall timeframe before you receive the full report.

Mold thrives where moisture lingers and air flow is poor. Common hotspots include bathroom walls, kitchen backsplashes, window sills, HVAC vents, fireplaces, crawl spaces, and enclosed attics. Check these areas regularly—especially after leaks or high‑humidity weather—to catch growth early and avoid costly repairs.

Unchecked mold can knock 20% to 37% off a home’s market value because buyers worry about hidden damage and health risks. Even after remediation, visible staining or a history of major moisture issues can still lower offers and prolong the time on the market. Addressing mold quickly protects both your property’s structural integrity and its resale appeal.

The Longmont, CO homeowners’ guide to mold & toxic material tests

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