Pennsylvania Mold Laws

General information, not legal advice. Laws change and depend on the facts. Use the linked official sources, and talk to a Pennsylvania attorney for a decision about your property. References checked 2026-10-16.

Pennsylvania Mold Rules at a Glance

No State Mold License

Pennsylvania does not license mold inspectors, mold assessors or mold remediation contractors. A few states do; Pennsylvania is not one of them. That means anyone can advertise mold services here, and the protections you have come from general contracting law and from what you put in writing.

What to check instead: the contractor's home improvement registration, a current certificate of liability insurance, the technicians' training credentials if they claim any (ask to see the certificate and check it with the issuing body), and a written scope that follows the IICRC S520 approach. The Department of Labor & Industry's contractor licensing page covers the state's separate building-code contractor rules. See Pennsylvania mold contractor licensing for more.

Home Improvement Contracts (HICPA)

The Home Improvement Consumer Protection Act applies to most residential mold and rebuild work. The Attorney General's HICPA FAQ is the official summary. The points that matter most for a mold job:

• Registration. Contractors doing $5,000 or more of home improvement work a year must register with the Attorney General and show the registration number on contracts and advertising. Check it on the contractor lookup before you sign.
• Written contract. Covered contracts over $500 must be in writing, signed, and include required terms such as the contractor's details, a description of the work, start and completion dates, and the total price.
• Right to cancel. Homeowners generally have 3 business days to cancel a covered contract.
• Deposits. For contracts over $5,000, deposits are generally limited to one third of the price plus the cost of special-order materials.

Use the written scope to cover the mold-specific parts HICPA does not spell out: square footage per area, containment, what is removed, how framing is cleaned, the moisture repair, the clearance criteria and the exclusions. Our quote checklist lists them.

No Legal Limit for Mold in Homes

There is no state or federal numeric limit for mold spores in a home. The EPA's sampling guidance explains that no standards exist for judging an acceptable quantity of mold, and that visible growth usually does not need sampling. A lab report that calls a number "toxic" or "illegal" is describing an opinion, not a law. Assessments compare indoor air with outdoor air, and the IICRC S520 goal is a return to normal conditions (Condition 1), not zero spores.

Selling a Home With Mold

Pennsylvania's Real Estate Seller Disclosure Law (Title 68, Chapter 73) requires covered residential sellers to disclose known material defects on a disclosure statement delivered before the agreement of sale. The standard form asks about water leakage, moisture and mold. Some transfers are exempt; the statute lists them.

• Disclose what you know: the location, the cause, and what was done.
• Keep remediation records: the scope, photos, moisture readings and any clearance results. A documented, finished job is easier to disclose than an open question.
• Fixing the moisture source matters as much as the mold, because the source is usually the material defect.

Detail: selling a house with mold in Pennsylvania.

Buying a Home

Pennsylvania is broadly a buyer-beware state for anything the seller does not know about, so the inspection contingency is your main tool. A general home inspection may note moisture and suspected mold; a dedicated mold inspection with moisture mapping goes further. Read the seller's disclosure for water and mold answers, ask for any remediation records, and negotiate based on the cause, not just the stain. See buying a house with mold in PA.

Renters and Landlords

Pennsylvania has no rental statute written specifically about mold. The Attorney General's tenant and landlord guide explains that residential leases carry an implied warranty of habitability, meaning landlords must address serious defects that affect health and safety. Leaks, persistent moisture and the mold they cause can fall under that.

• Tenants: report leaks and mold in writing, with dates and photos; keep copies; control what you can (ventilation, humidity, reporting quickly). Rent withholding has strict requirements; get advice before doing it.
• Landlords: respond promptly, fix the water source, document the work, and use a written scope for remediation between or during tenancies.
• Local rules: Gettysburg Borough has rental licensing and inspection requirements for properties within its jurisdiction; check the Borough guidance.

Guides: tenant rights · landlord responsibilities.

Insurance

Mold coverage is set by your policy, not by a Pennsylvania mold statute. Many homeowners policies cover mold only when it follows a sudden, covered water event, and many cap it. Flood damage needs a separate flood policy such as one through the National Flood Insurance Program. If you have a dispute with an insurer, the Pennsylvania Insurance Department takes consumer complaints. See does homeowners insurance cover mold in PA and flood insurance and mold in Adams County.

Gettysburg Permits and HARB

For properties in Gettysburg Borough, the Borough's permits and licenses page covers land-use applications and UCC or non-UCC review. Interior mold cleanup alone may not need a permit, but rebuild, structural, plumbing, electrical and exterior work often does; confirm the actual scope with the Borough. An exemption from a UCC building permit does not mean no other approval is needed.

If the moisture fix changes a publicly visible exterior in the local Historic District, such as windows, roofing, gutters or masonry, Gettysburg's Historic Architectural Review Board (HARB) reviews it and a Certificate of Appropriateness may be required. A Gettysburg mailing address does not by itself mean a property is in the Borough or the Historic District. Outside the Borough, ask the township or borough that has jurisdiction.

Floodplain Repairs

After a flood, repairs to a building in a mapped floodplain can trigger municipal floodplain rules, including substantial-damage determinations that affect how a building can be rebuilt. Start with Adams County's floodplain planning FAQs and the FEMA Flood Map Service Center, then confirm with the municipality. The maps are a starting point, not a property-specific determination.

Lead Paint and Asbestos

Mold work in older homes often disturbs paint and old building materials. Under EPA's Renovation, Repair and Painting rule, paid work that disturbs painted surfaces in most pre-1978 homes must be done by an EPA-certified firm using lead-safe practices. Suspect asbestos materials, such as old pipe and duct insulation, some floor tiles and some plasters, should be tested before they are cut or removed. These are separate scopes with their own rules and costs.

Frequently Asked Questions

This page is general information about Pennsylvania rules, not legal advice. For a decision about a specific property, lease or sale, talk to a Pennsylvania attorney or the agency linked above.