Philadelphia Bed Bugs in 2026: Who Pays, the 5-Day Notice Rule & Landlord Deadlines

The lease cannot answer the Philadelphia bed-bug question by itself

A Philadelphia renter can open a lease, see a sentence saying that the tenant is responsible for pest control, and still have a very different result under the city's bed-bug ordinance. Philadelphia Code § 9-4802 creates specific duties for landlords and tenants when bed bugs are found or reasonably suspected. A generic pest-control clause should not be treated as a substitute for those city rules.

The practical first step is not to argue over who brought the bug into the unit. Preserve what you found if that can be done safely, document the date, and notify the landlord in writing. The ordinance is built around prompt notice, professional investigation and defined cost rules—not guesswork about blame.

Tenants have a five-business-day notice duty

Philadelphia Code § 9-4802 says a tenant who finds or reasonably suspects bed bugs in the dwelling unit or a common area must notify the landlord within five business days of finding or suspecting the infestation. Written notice is especially important because the code's cost-allocation rule expressly refers to written notice.

A maintenance portal can create a useful time-stamped record, but save a copy or screenshot outside the portal. A short written notice should identify the unit, the date the problem was found or suspected, what was observed, and a reliable contact method. Do not wait for bites or a large infestation before reporting a reasonable suspicion.

The landlord must acknowledge the complaint and bring in a professional

Once notified of a suspected infestation, the landlord must acknowledge the complaint within five business days and obtain investigatory and remedial services from a pest management professional within ten business days. If an infestation is confirmed, treatment must continue until the professional determines that no evidence of bed bugs can be found in the unit.

That means a landlord should not simply reject a bed-bug work order by pointing to a general lease clause and telling the renter to arrange everything alone. The ordinance places the investigation and remediation process on the landlord, even when the renter may later share some reasonable cost under the timing rules below.

Who pays depends heavily on when written notice is given

If the tenant gives written notice within 365 days after the lease commencement date, the landlord is responsible for the costs of investigating and remediating the infestation. The same landlord-cost rule applies when written notice is given within 180 days after discovery of a bed-bug infestation in an adjoining unit in the building.

If written notice is given more than 365 days after lease commencement, the landlord still remains responsible for investigating and remediating, but the tenant shares responsibility for the reasonable costs. Tenants in Philadelphia Housing Authority properties and tenants whose rent is paid through a government housing subsidy or voucher program are not responsible for that shared-cost portion under § 9-4802(3)(b).

The date that matters is the lease commencement date and the date of written notice—not simply how long a person has lived somewhere in the abstract. A lease takeover, renewal or roommate change can complicate the timeline, so preserve the signed lease and any later amendments before assuming which branch applies.

Four-or-more-unit buildings trigger adjoining-unit investigation

In a building with four or more units, the landlord must obtain professional investigatory services for units directly adjacent to, above and below the unit that generated the original report. This matters because treating one apartment without checking connected units can miss the source or spread of an infestation.

The landlord also must provide affected tenants written notice of the pest professional's determination within five business days after receiving it, and common-area determinations must be communicated to tenants in the building. Ask for the professional determination rather than relying only on a verbal maintenance update.

The city requires 12 months of monitoring after remediation

After a unit has been determined infested and later reaches the point where no evidence can be found, the landlord must obtain reasonable monitoring services for 12 months. If the unit is leased to a new tenant during that monitoring period, the landlord must explain the monitoring activity and continue it.

Landlords also must maintain written records of bed-bug complaints and control measures for two years, including professional reports and receipts. These records matter for both operational compliance and later disputes about whether treatment was actually completed.

Philadelphia requires disclosure before a unit is leased

Before leasing a dwelling unit, the landlord must provide an informational notice regarding bed bugs, maintain and follow a bed-bug control plan, and give the tenant a written disclosure of the unit's bed-bug infestation and remediation history for the previous 120 days—or disclose in writing that there is no such history.

The lease also must acknowledge the landlord and tenant responsibilities under § 9-4802 and the tenant's receipt of the informational brochure and unit-history disclosure. A renter who never received those items should document that fact rather than assuming the omission erases the rest of the ordinance.

What a renter should save before the facts get harder to prove

Keep the lease, lease commencement date, any bed-bug addendum, the 120-day history disclosure, maintenance request, email or certified-mail notice, portal screenshots, photographs, pest-professional report, invoices and management responses. If the problem is in a multi-unit building, record any notice received about adjacent or common-area findings.

Do not throw away or move potentially infested belongings through the building without following professional instructions. The ordinance requires tenants to cooperate with reasonable pest-management recommendations, including access and reasonable preparation for treatment.

For landlords and managers: build the response around the ordinance, not a generic pest clause

A reliable workflow starts by date-stamping the complaint, acknowledging it, scheduling the qualified professional, documenting adjacent-unit investigation where required, communicating the determination and tracking the 12-month monitoring period. A maintenance log and vendor work-order record can make those steps easier to prove later.

Before billing a tenant, verify the lease-commencement date, the written-notice date, whether an adjoining-unit discovery changes the cost rule, and whether the household is in PHA or government-subsidized housing. 'Tenant pays pest control' is not a safe shortcut for the Philadelphia bed-bug ordinance.

Where to go if the landlord will not follow the Philadelphia process

Philadelphia provides a bed-bug law violation reporting path, and § 9-4802 includes tenant remedies for specified landlord violations. Remedies can depend on exactly which duty was violated and the facts of the case, so renters should use the city's current complaint resources or qualified tenant counsel rather than improvising rent withholding or lease termination.

For the underlying documentation, Max Rental Tools can help organize a maintenance request log, resident complaint record, inspection findings and vendor-work-order history. Those records do not replace city reporting or legal advice, but they can keep the chronology clear.