If you are dealing with mold in a home or business in Pennsylvania and need it removed, you are in the right place. Below you can connect with independent mold remediation and removal companies across the Commonwealth, from Philadelphia and Pittsburgh to Allentown, Erie, and Scranton. We are Mold Inspection & Testing (MI&T), and we have put this directory together as a courtesy so you can find qualified local help quickly and make an informed decision.
Choose your city or region below to see mold remediation companies that serve your area of Pennsylvania.
Before and after any remediation, we recommend an independent inspection and test from a company that does not perform the removal work, so your assessment stays objective.
A quick note on who we are: Mold Inspection & Testing provides mold inspection and testing only. We do not perform remediation or sell cleanup services. That is deliberate, because we never bid on the removal work, so our findings are not shaped by an interest in selling you a bigger job. The remediation companies listed here are independent businesses, and we offer this directory as a free resource to help you find them.
Pennsylvania sits in a humid continental climate, and moisture is a fact of life across the Commonwealth. Statewide precipitation averages about 42.6 inches a year, and recent years have trended wetter still, with 2018 setting a record of 64.0 inches. Summers are warm and humid, winters are cold and wet, and warm overnight temperatures, now nearly double the long-term average during 2015-2020, keep indoor surfaces from drying out. Every one of those conditions gives mold the water it needs to establish and spread.
Geography sharpens the picture. In the northwest, the Lake Erie region receives over 100 inches of snow a year from lake-effect storms, and repeated freeze-thaw and snowmelt work moisture into walls and basements. Across the state, extreme rainfall is rising: Pennsylvania recorded its highest number of two-inch rainfall events on record during 2015-2020, and river and flash flooding regularly push water into low-lying structures.
Then there is the housing itself. Pennsylvania has some of the oldest housing stock in the nation, and stone, brick, and block basements are common in older neighborhoods of Philadelphia and Pittsburgh. These below-grade spaces breathe moisture and were rarely built with modern vapor barriers. Put humid air, heavy precipitation, and a porous old foundation together, and a persistent damp basement or a slow leak can turn into a mold problem before a homeowner ever notices it.
Here is the key point: Pennsylvania does not license or register mold remediation contractors or mold assessors, and the Commonwealth issues no state mold certification. Unlike a handful of states that regulate the trade, Pennsylvania has no mold-specific licensing board, no mandated training hours, and no state-set remediation standard. In practical terms, that means the credential you might expect to check for does not exist here.
There is one general requirement worth knowing. Under Pennsylvania's Home Improvement Consumer Protection Act, contractors who perform more than $5,000 of home improvement work in a year must register with the Pennsylvania Office of Attorney General and carry a registration number. That registration applies broadly to home improvement work; it is not a mold-specific license and does not verify mold expertise. Because there is no state mold license to rely on, we suggest weighting three things instead: voluntary industry certification, proof of adequate liability insurance, and independent testing that documents the problem and confirms the cleanup. Those three, taken together, do the work a state license would otherwise do.
Pennsylvania has no mold-specific statute and no state law requiring landlords or sellers to disclose mold. What it does have is a strong, court-made protection. In Pugh v. Holmes (1979), the Pennsylvania Supreme Court recognized an implied warranty of habitability in residential leases, meaning a landlord must provide and maintain a dwelling that is safe, sanitary, and fit to live in. Serious moisture intrusion and mold that affects health or safety can fall within that warranty, even though no statute names mold directly. Other aspects of the relationship are governed by the Landlord and Tenant Act of 1951.
When a landlord fails to make necessary repairs, tenants may have remedies such as withholding rent into an escrow account under the Rent Withholding Act, subject to specific legal conditions and time limits. Because those requirements are technical, this is general information rather than legal advice, and anyone facing a dispute should consult a qualified Pennsylvania attorney. What we can say plainly is that documentation helps everyone: an independent inspection and test creates a dated, objective record of what was found and where, useful whether you are a tenant raising a concern or a landlord confirming a unit is sound.
Because Pennsylvania sets no standard of its own, the best remediators voluntarily follow recognized national guidance. The central document is the ANSI/IICRC S520 Standard for Professional Mold Remediation, which spells out how to contain a work area, control the moisture source, remove contaminated materials safely, and clean effectively. The U.S. Environmental Protection Agency publishes widely used guidance on mold cleanup and the moisture problems behind it, and the American Industrial Hygiene Association offers resources on assessment and testing. A contractor who works to S520, respects EPA guidance, and understands industrial-hygiene principles is following the right playbook even without a state mandate.
Since there is no state mold license, ask for voluntary certification (such as IICRC), current general-liability insurance, and, where applicable, an Attorney General home improvement registration number. Ask how the crew is trained and what standard they work to.
A good contractor identifies and corrects the water source, not just the visible growth. Get a written scope describing containment, removal, drying, and cleanup, so you can compare bids on equal terms.
We believe the company that tests should not be the company that removes. Using an independent inspector for the initial assessment and the post-remediation clearance keeps the results objective. You can start with our directory at https://moldinspectionandtest.com/pennsylvania.
Confirm the price, timeline, warranty, and clearance criteria before work begins, and keep copies of the inspection report and the completion documentation.
Use the city list on this page to reach a local directory of independent mold remediation companies serving your part of Pennsylvania, from Philadelphia and Pittsburgh to Allentown, Erie, and Scranton. Because we at Mold Inspection & Testing perform inspection and testing only, we are able to provide an independent assessment before and after remediation, and we do not compete with the contractors listed.
No. Pennsylvania does not license or register mold remediators or mold assessors, and there is no state mold certification. Contractors performing more than $5,000 of home improvement work per year must register with the Pennsylvania Office of Attorney General under the Home Improvement Consumer Protection Act, but that registration is general and not specific to mold. Because no state license exists, we suggest looking for voluntary industry certification, proof of insurance, and independent testing.
Pennsylvania has a humid continental climate that averages about 42.6 inches of precipitation a year, with humid summers, cold wet winters, and heavy lake-effect snow of more than 100 inches annually near Lake Erie. Combined with older housing stock and stone or block basements common in Philadelphia and Pittsburgh, plus river and flash flooding, these conditions give mold ample moisture to grow.
Pennsylvania has no mold-specific statute or disclosure law. However, under the implied warranty of habitability recognized in Pugh v. Holmes (1979), residential landlords must keep rental units in a safe and habitable condition, which can include addressing serious moisture and mold problems. Tenant remedies may include rent withholding through escrow under the Rent Withholding Act. This is general information, not legal advice; consult a qualified attorney about your situation.
Because Pennsylvania sets no standard of its own, a qualified remediator typically follows the ANSI/IICRC S520 Standard for Professional Mold Remediation, guidance from the U.S. EPA, and the American Industrial Hygiene Association. These cover containment, moisture control, safe removal, and verification that the work was effective.
We think it helps. An independent inspection and test performed by a company that does not do remediation, such as Mold Inspection & Testing, documents the extent of the problem, guides a targeted scope of work, and provides post-remediation verification that the job was completed. This avoids the conflict of interest that arises when the same firm both tests and sells the cleanup.
This page is a courtesy resource and reflects our understanding of Pennsylvania law and conditions as of August 2026. It is general information, not legal advice, and it is not a substitute for guidance from a licensed professional or attorney. Mold Inspection & Testing provides inspection and testing services only and does not perform mold remediation.
