If you are dealing with mold in a home or business anywhere in Hawaii, this page is a starting point for finding a qualified remediation company near you. Below we list independent mold remediation and removal companies that serve communities across the islands, and we explain how the trade is regulated in Hawaii, why mold is so common in our tropical climate, what standards a good remediator should follow, and how to choose a contractor with confidence.
Select your city or region below to see mold remediation companies that serve your part of Hawaii, from Oʻahu and Maui to the Island of Hawaiʻi and Kauaʻi.
Because we are an inspection-and-testing company and do not perform remediation, every remediation business listed here is fully independent of us. Many homeowners start with an independent mold inspection and test so the scope of the problem is documented before any contractor is hired.
Mold Inspection & Testing (MI&T) provides mold inspection and laboratory testing only — we do not remediate. We offer this directory as a courtesy so Hawaii residents can locate remediation companies easily. Keeping testing separate from removal matters: when the company confirming whether you have a mold problem is not the one being paid to remove it, the assessment stays impartial. We are glad to inspect, sample, and provide clearance testing, but the removal itself is always handled by the independent contractors you choose.
Few places in the United States are as mold-friendly as Hawaii. The islands are warm and humid throughout the year; according to the NOAA State Climate Summary for Hawaiʻi, average temperatures run near 79°F in August and about 72°F in February, and steady trade winds carry moist ocean air onshore day after day. Warmth plus abundant humidity is exactly what mold spores need to colonize walls, ceilings, closets, and HVAC systems.
Rainfall in Hawaii is famously extreme and uneven. The same NOAA summary notes that windward mountain slopes can receive more than 300 inches of rain a year, while leeward coastal areas — where many resorts and drier-side neighborhoods sit — may get less than 20 inches. Mount Waiʻaleʻale on Kauaʻi is regularly ranked among the wettest spots on Earth, with roughly 350 to 450 inches annually. Windward communities such as Hilo and Kāneʻohe live with near-constant dampness, and even drier leeward areas see humid interiors, sea spray, and condensation.
On top of everyday humidity, Hawaii faces heavy downpours, flash flooding, and the occasional tropical storm or hurricane; NOAA reports that about 25 hurricanes have passed within 200 miles of the state since 1950. A single flooding event, roof leak, or plumbing failure can soak building materials, and in this climate they rarely dry out on their own. That combination is why indoor mold is nearly ubiquitous across the islands and why prompt, professional remediation matters here more than in most of the country.
Hawaii does not license or certify mold remediation contractors or mold assessors specifically. There is no state-issued mold credential, no mandated mold-remediator exam, and no mold-specific fee or penalty schedule for the trade. This means the fact that a company is operating in Hawaii tells you nothing, by itself, about its mold training.
What Hawaii does regulate is general construction. Contractors who perform building work are licensed through the Department of Commerce and Consumer Affairs (DCCA) and its Contractors License Board, so a remediator whose job includes repairs, drywall replacement, or reconstruction may need a contractor license for that portion of the work. Because no mold-specific license exists, the practical way to judge a Hawaii remediator is to look at voluntary industry certification, proof of general liability and workers' compensation insurance, references, and independent post-remediation testing that verifies the job was done correctly.
Rental housing in Hawaii is governed by the Residential Landlord-Tenant Code, Hawaii Revised Statutes (HRS) Chapter 521. Under HRS section 521-42, a landlord must comply with all applicable building and housing laws materially affecting health and safety and must make the repairs and arrangements necessary to put and keep the dwelling in a habitable condition, including keeping electrical, plumbing, and landlord-supplied appliances in good working order. The code does not contain a mold-specific provision or a mandatory mold disclosure, but persistent leaks and moisture problems can fall under these general habitability duties.
Chapter 521 also sets out remedies and procedures for tenants when a landlord fails to maintain the premises, including notice requirements and specific steps that must be followed. This page is informational only and is not legal advice; if you are unsure of your rights, consult the statute or a qualified professional. A documented independent mold inspection and test can help both renters and owners establish the facts — what was found, where, and whether it was resolved — without relying on the party being paid to do the removal.
Because Hawaii sets no mold license, the recognized industry standards carry the weight. A reputable remediation company generally works to the ANSI/IICRC S520 Standard for Professional Mold Remediation, which defines the principles of containment, source removal, and verification. Good contractors also align with U.S. Environmental Protection Agency (EPA) guidance on mold and moisture control, and when sampling or clearance testing is involved, they rely on laboratories accredited by the American Industrial Hygiene Association (AIHA). Asking which of these standards a company follows — and how it documents results — is one of the fastest ways to separate a serious remediator from an unqualified one.
Since the state issues no mold credential, ask directly about voluntary certification (for example, IICRC training), years of experience with Hawaii's tropical conditions, and current general liability and workers' compensation coverage. Request proof rather than taking claims on faith.
A good contractor provides a written scope of work grounded in a standard like S520 and welcomes independent post-remediation testing. Avoid any company that discourages a third party from verifying its work.
Having your property assessed by a company that does not sell remediation keeps the diagnosis honest and gives you documentation to compare contractor bids. To schedule inspection and testing anywhere in the state, visit https://moldinspectionandtest.com/hawaii.
Use the city list on this page to reach mold remediation companies serving your area, from Honolulu and Kāneʻohe on Oʻahu to Hilo and Kailua-Kona on the Island of Hawaiʻi, Kahului on Maui, and Līhuʻe on Kauaʻi. Because we are an inspection-and-testing company and do not remediate, the remediators listed are independent businesses. Many homeowners begin with an independent inspection and test so the scope of work is documented before they contact a contractor.
Hawaii does not issue a mold-specific license or certification for remediation contractors or mold assessors. General construction work in the state is regulated separately through the Department of Commerce and Consumer Affairs and its Contractors License Board, so a remediator who performs repairs or reconstruction may need a contractor license for that work. Because no mold credential is mandated, homeowners should look to voluntary industry certification, insurance, and independent testing to gauge a company.
Hawaii is warm and humid year-round, with trade-wind moisture and heavy rainfall. Windward slopes can receive over 300 inches of rain a year while nearby leeward coasts get less than 20 inches, and Mount Waiʻaleʻale on Kauaʻi is among the wettest places on Earth. This persistent moisture, combined with flash flooding and tropical storms, makes indoor mold growth extremely common across the islands.
A reputable remediator generally follows the ANSI/IICRC S520 Standard for Professional Mold Remediation, along with U.S. Environmental Protection Agency guidance on mold and moisture. For sampling and clearance testing, laboratories accredited by the American Industrial Hygiene Association add credibility. Ask a prospective contractor which standards they follow and how they verify results.
Hawaii's Residential Landlord-Tenant Code, HRS Chapter 521, requires a landlord under section 521-42 to comply with building and housing laws materially affecting health and safety and to keep the dwelling in a habitable condition. The code does not contain a mold-specific provision or disclosure requirement. Tenants have remedies and procedures under Chapter 521; this page is informational, not legal advice, and a documented independent inspection can help establish the facts.
No. Mold Inspection & Testing provides mold inspection and laboratory testing only. We do not perform remediation. Keeping inspection and testing separate from the company that does the removal helps avoid a conflict of interest, so our assessment of whether a problem exists and whether it was resolved stays independent of the remediation work.
This page is a courtesy resource and reflects our understanding of Hawaii law and practice as of August 2026. It is not legal advice. Laws and regulations change; verify current requirements with the appropriate Hawaii state agency or a qualified professional.
