Mold Remediation & Removal Companies in Colorado

If you are dealing with mold in a Colorado home or business, you need a qualified remediation company you can trust to remove it safely and completely. This page introduces our directory of independent mold remediation companies serving Colorado, and explains what to look for before you hire. At Mold Inspection & Testing (MI&T), we specialize in unbiased mold inspection and testing, so the guidance below is meant to help you make a confident, well-informed decision.

Find a mold remediation company near you

Use the directory below to locate independent mold remediation companies serving cities and towns across Colorado, from the Front Range and Eastern Plains to the Western Slope and high country.

Before you hire any remediation company, we strongly recommend an independent mold inspection and test first. Because MI&T does not perform remediation, our assessment is not tied to selling you a removal job, giving you an objective picture of the problem and a clear scope to compare against every bid.

An inspection-only courtesy resource

MI&T provides mold inspection and testing only. We do not remediate, and the remediation companies listed in our directory are entirely independent of us. We offer this overview as a courtesy resource so Colorado property owners, renters, and managers can understand local conditions, the regulatory landscape, and the standards a good remediator should follow. Keeping testing and removal separate protects you: the party checking whether mold exists has no financial stake in finding more of it.

Why mold is a common problem in Colorado homes

Colorado's reputation for dry, sunny weather can be misleading. Statewide precipitation averages about 18 inches a year, but that number hides an enormous range: the San Luis Valley receives roughly 7 inches annually, while some mountain locations exceed 60 inches, much of it as snow. Mold does not need high outdoor humidity to grow indoors; it needs liquid water and a food source. In Colorado, that water most often arrives as snowmelt and spring runoff, ice dams on cold roofs, and seepage into basements and crawl spaces.

Winter brings a second, quieter driver. In tight, well-sealed homes, especially at high altitude, warm indoor air meets cold windows, walls, and framing and condenses into moisture that feeds mold behind finishes and in closets. Summer adds a third: the North American monsoon fuels intense thunderstorms and flash flooding across the state. The September 2013 Front Range floods dropped more than 15 inches of rain in some areas and caused over $1.5 billion in damage, with a state record 11.9 inches falling in 24 hours near Fort Carson on September 12. Wherever water intrudes and is not dried within a day or two, mold can take hold, regardless of how arid the outside air feels.

Is mold remediation regulated in Colorado?

Here is the key point for Colorado homeowners: the state does not license or register mold remediation contractors or mold assessors. There is no state mold license, certification, or registry to check. Colorado also has no statewide general contractor license; the state's Division of Professions and Occupations (DORA) licenses only the electrical and plumbing trades. General contracting is licensed locally, so requirements, fees, and classifications vary by city and county, and some jurisdictions may require a contractor to hold a local license for certain work.

Because there is no state credential to verify, the burden of vetting falls on you. Look instead for voluntary industry certifications, such as those from the Institute of Inspection, Cleaning and Restoration Certification (IICRC), proof of current general liability insurance, written adherence to the S520 standard, and independent testing that documents both the problem and the completed work. Those markers, not a state license, are how you separate a qualified Colorado remediator from an unqualified one.

Mold, renters, and landlords in Colorado

Colorado stands out for addressing mold directly in its landlord-tenant law. The state's warranty of habitability statute, C.R.S. 38-12-503, expressly lists mold as a condition that can breach a rental's habitability. Under the statute, a residential premises is uninhabitable when it "has mold that is associated with dampness, or there is any other condition causing the residential premises to be damp" in a way that would materially interfere with the life, health, or safety of a tenant.

The law also sets timeframes. After a tenant gives proper written notice, the landlord generally must respond within 24 hours (up to 72 hours if the premises is inaccessible due to an environmental public health event) and must begin immediate risk-mitigation steps, such as installing containment, stopping the water source, and running HEPA air filtration, within 96 hours, with full remediation to follow within a reasonable time. Tenants may be entitled to a comparable unit or a hotel at no cost during the work. An independent inspection and test can document the mold and the dampness in an objective report, which is useful whether you are a renter giving notice or a landlord responding to it. This is general information, not legal advice; consult the statute or a qualified attorney for your situation.

Standards a good remediator follows

Regardless of licensing, a competent Colorado remediator works to recognized national standards. The core reference is the ANSI/IICRC S520 Standard for Professional Mold Remediation, which defines principles such as containing the work area, controlling the moisture source, physically removing contamination, and verifying results. Reputable companies also follow the U.S. Environmental Protection Agency's (EPA) guidance on mold cleanup and moisture control. For sampling and clearance, they use laboratories accredited for microbial analysis, such as those recognized through the American Industrial Hygiene Association (AIHA), so the results are credible and independent. Ask any contractor which standards they follow and how they will verify success.

How to choose a mold remediation contractor in Colorado

Start with an independent inspection

Have the property inspected and tested before removal begins, so you know the source, extent, and type of mold. To schedule an unbiased assessment, visit https://moldinspectionandtest.com/colorado.

Verify insurance and certifications

Because Colorado has no state mold license, confirm current liability insurance and voluntary credentials like IICRC certification, and check any local contractor licensing that applies in your city or county.

Get a written scope and detailed estimate

A good remediator provides a written plan referencing S520, describing containment, moisture control, removal, and post-work verification, so you can compare bids on equal terms.

Insist on post-remediation verification

Independent clearance testing after the work confirms the mold problem was resolved. Keep the source assessment and the clearance separate from the company doing the removal.

Frequently asked questions

• How do I find a mold remediation company near me in Colorado?

  Browse the directory on this page to find independent mold remediation companies serving communities across Colorado, from Denver and the Front Range to Colorado Springs, Boulder, Fort Collins, Grand Junction, and mountain towns. MI&T is an inspection-and-testing company, not a remediator, so the companies listed here are independent of us. We recommend an independent inspection and test first so you know the scope of the problem before you hire anyone.

• Does Colorado require a license to perform mold remediation?

  No. Colorado does not license or register mold remediation contractors or mold assessors at the state level, and it has no statewide general contractor license. Colorado's Division of Professions and Occupations (DORA) licenses only electrical and plumbing trades statewide, while general contracting is licensed city by city. Because there is no state mold license to verify, look for voluntary industry certifications such as IICRC, proof of liability insurance, and independent testing that documents the work.

• Does Colorado law address mold in rental housing?

  Yes. Colorado's warranty of habitability statute, C.R.S. 38-12-503, expressly names mold. It states that a rental breaches habitability when the premises has mold associated with dampness, or another condition causing the premises to be damp, that would materially interfere with the life, health, or safety of a tenant. After proper written notice, a landlord generally must respond within 24 hours and begin risk-mitigation steps such as containment and stopping the water source within 96 hours. This is general information, not legal advice.

• Why does mold grow in Colorado if the climate is so dry?

  Low outdoor humidity does not prevent indoor moisture. Colorado mold is usually driven by liquid water and condensation: snowmelt and spring runoff, ice dams, basement seepage, winter condensation inside tight, high-altitude homes, and intense summer monsoon storms and flash floods. The September 2013 Front Range floods dropped more than 15 inches of rain in some locations, and mold followed the water indoors.

• What standards should a good mold remediation contractor follow?

  A qualified remediator follows the ANSI/IICRC S520 Standard for Professional Mold Remediation, along with EPA guidance on mold cleanup. Reputable companies rely on containment, HEPA filtration, and moisture control, and they send samples to accredited laboratories, such as those recognized through AIHA, for independent analysis.

• Should I get an inspection before hiring a mold remediation company?

  Yes. An independent inspection and test identifies the source, extent, and type of mold before any removal work begins, giving you an objective scope to compare bids against. Because MI&T only inspects and tests and never performs remediation, our findings are not tied to selling you a cleanup job. Post-remediation verification testing then confirms the work was done correctly.

Disclaimer: This page is a courtesy resource and does not constitute legal advice. Colorado laws and regulations are summarized as of August 2026 and may change. Verify current requirements with the relevant Colorado agency or a qualified attorney before acting.

References

• NOAA National Centers for Environmental Information — Colorado State Climate Summary
• C.R.S. 38-12-503 — Warranty of Habitability (Colorado Revised Statutes)
• Colorado Revised Statutes 38-12-503 — full text (Justia)
• Colorado Division of Professions and Occupations (DORA)
• IICRC S520 Standard for Professional Mold Remediation
• U.S. EPA — Mold and Moisture Resources
• American Industrial Hygiene Association (AIHA)