Mold and Pennsylvania law

There is no Pennsylvania mold law. That single fact shapes everything else on this page, including what a seller is asked, what a tenant can do, and why the repair that actually fixes a Gettysburg basement often needs permission before it can start.

The starting point: nobody regulates it

The Pennsylvania Department of Health states there are no federal or Pennsylvania state regulations about mold, and that Pennsylvania has no state law about landlord duties for mold prevention or repair. The Department of Environmental Protection says it has no authority over indoor air quality and cannot address mold in homes or apartments. The Department of State's list of licensing boards runs to 29 professions and includes no board for mold, indoor air quality or environmental remediation.

So there is no licence to check, no state standard to test against, and no agency to complain to about the mold itself. What exists instead are rules about water, contracts and buildings, and those do reach mold problems.

Selling a house: the form never says mold

Pennsylvania requires a seller property disclosure statement, and its contents are set out in the Pennsylvania Code. The word mold does not appear anywhere in it.

What it does ask about is water, in four separate places:

• "Are you aware of any water leakage, accumulation or dampness within the basement or crawl space?"
• "Are you aware of any past or present water leakage in the house or other structures?"
• "Are you aware of any leaks, backups or other problems relating to any of the plumbing, water and sewage-related items?"
• "Do you know of any past or present drainage or flooding problems affecting the property?"

There is also a hazardous substances question listing asbestos, PCBs, radon, lead paint and urea-formaldehyde foam insulation, which does not name mold either.

Source: 49 Pa. Code § 35.335a, seller property disclosure statement. Retrieved September 19, 2026.

The practical shape of that is worth understanding before either side of a sale starts arguing about mold. The questions that reach a mold problem are the water questions. What any particular seller must disclose is a question for a lawyer, not for this page.

Renting: no mold-specific law, and a general duty that still applies

The Department of Health's wording is precise: Pennsylvania has no state law about landlord duties for mold prevention or repair. That is not the same as a landlord having no duty. Every lease carries the implied warranty of habitability, which the Attorney General's office describes this way:

Under Pennsylvania law, every lease comes with an Implied Warranty of Habitability. That means the landlord must maintain the rental unit in a fit and habitable condition. The landlord has a legal duty to fix serious defects affecting your safety or ability to live in the rental unit. This duty cannot be waived by any lease provision.

The examples the guide gives are lack of utility services, rodent infestation, a leaking roof, unsafe floors or stairs, and broken locks. Mold is not on that list. A leaking roof is, and a roof leak is one of the ways water reaches an attic or a ceiling. Whether a particular mold problem counts as a serious defect in a particular rental is not something this page can answer, and it is exactly the kind of question the guide says to take to a lawyer.

The guide is also specific about sequence. A tenant must notify the landlord and give a reasonable opportunity to correct the problem. If that fails, it lists options including repairing and deducting the cost from rent, terminating the lease, withholding rent until the defect is fixed, taking legal action, and raising the violation as a defense against eviction. It attaches a warning that belongs with them:

You should get legal advice about your options before taking action; improperly invoking a remedy could lead to eviction if a court finds that you breached the lease.

Source: Pennsylvania Office of Attorney General, Consumer Guide to Tenant and Landlord Rights. Retrieved September 19, 2026.

Document the problem and every attempt to contact the landlord. That evidence is what the remedies rest on.

The Gettysburg historic district: approval comes before the repair

This is the part that catches people out, and it is specific to the borough rather than the county.

Water that reaches a house from outside arrives through things like a downspout discharging at the wall, ground sloping toward the house, failed gutters and open mortar joints. Fixing mold without fixing the water source is how a house gets remediated twice, which is the EPA's point that moisture control is the key to mold control. Those repairs are exterior work, and the borough is explicit:

If you live in the HARB District and are proposing to do any exterior work that is visible from a public street or alley, you must receive HARB approval before undertaking the work, even if a permit is not required.

Source: Gettysburg Borough, Historic Architectural Review Board. Retrieved September 19, 2026.

The Historic Architectural Review Board regulates alteration and restoration of buildings in the local historic districts. It is advisory: it makes recommendations, and every decision needs a majority vote of Borough Council, which the borough notes has overturned the board before on both major and minor issues. The board meets on the third Wednesday of each month.

For a homeowner the consequence is a calendar one. If the moisture fix is visible from the street and you are in the district, the approval step comes before the work, and the board sits monthly. Plan the outside repair on that timetable rather than discovering it after a remediation quote is signed. Whether a particular repair qualifies as in-kind, and exactly where the district boundary runs, are questions for the borough office rather than for this page.

What this means in practice

1. Nobody will certify your house as safe or unsafe, because no standard exists to certify it against.
2. The paperwork that matters is about water, not about mold.
3. If you rent, notice to the landlord comes first, and advice before any remedy.
4. If you are in the borough's historic district, price the approval time into the outside repair.

When a test is worth paying for covers what a sample can and cannot establish. The questions homeowners actually ask covers cost, insurance and recurrence.