What Defends You

How Courts Have Weighed Landlord Pest Response

Written for: Risk managers, asset managers, insurers and brokers, and counsel on either side

Parts of this page marked Professional synthesis, not law are a Board Certified Entomologist's reading of published records. They are not legal rules, they are not legal advice, and they are written to read the same for an owner, a resident, or either side's counsel.

This page reads the published opinions, not summaries of them. Each case below shows its court, date, and whether it binds anyone; the facts the court relied on; and a short quotation from the opinion. Nothing here is legal advice, and none of it predicts how a court will decide a different case. The pages in this section describe what courts weighed, so that an owner, a resident, or either side’s counsel can find the same thing in the record.

Utah: no Utah appellate decision on pests as a habitability issue was found. Utah’s general rules are on Utah and the Wasatch Front.

The cases at a glance

Warranty of habitability

Kolb v. DeVille I Properties, LLC, 326 S.W.3d 896 (Mo. Ct. App. W.D. Dec. 14, 2010). Tenants in a Jefferson City apartment learned from a dermatologist that they had bed bug bites and told the landlord immediately; the court held that was reasonable notice. The landlord’s pest control technician inspected, saw no bugs, and sprayed once. The court relied on his testimony:

Plunkett said, however, that it takes between two to four sprayings to kill bedbugs.

He was never called back. The court held that one treatment and a clean visual inspection did not restore the apartment:

The fact that Plunkett did not see any bedbugs and that he sprayed the apartment once with chemicals designed to kill bedbugs does not establish that the premises were returned to a habitable condition.

DeVille, however, had no intention of correcting the bedbug problem as evidenced by its not ordering repeated sprayings of the apartment.

The judgment for the tenants ($1,218, plus return of a $200 security deposit) was affirmed.

Ludlow Properties, LLC v. Young, 4 Misc. 3d 515 (N.Y. Civ. Ct., N.Y. County, June 10, 2004). Trial-level decision; not binding on other courts. A rent-stabilized tenant in Manhattan was bitten repeatedly in 2003. The landlord’s exterminator, who had planned two treatments,

ended up exterminating in the premises on five occasions in the year 2003 starting in June 2003

The court found the condition intolerable “notwithstanding the landlord’s efforts,” and then set the abatement by weighing several factors on both sides:

the lack of showing petitioner’s efforts to eradicate the bedbugs on a building-wide scale, petitioner’s diligent efforts to eradicate the bedbugs and the use respondent continued to make of the premises, the court finds an abatement of 45%

The 45% abatement ran for six months (July through December 2003). It stopped after that period.

Parrish v. Vance, Record No. 1687-22-4 (Va. Ct. App. Mar. 12, 2024) (published). A tenant found fleas in a single-family rental on the day she moved in and gave written notice ten days later. The landlord’s exterminator treated once and said several treatments would be needed; a promised follow-up treatment never happened. The lease said:

Tenant shall be responsible for … [c]ontrolling and eliminating household pests including but not limited to fleas, ticks, bed bugs, roaches, silverfish, ants, crickets, and rodents during occupancy.

The court held that the statute’s habitability duty could not be signed away:

we hold that Code § 55.1-1220(A) provides tenants a warranty of habitability that a landlord and tenant cannot waive by agreement.

The holding rests on Virginia’s landlord-tenant statute. The same statute still allows some duties to be assigned to tenants in writing, and keeps a tenant’s own duty to keep their part of the premises free of pests and to tell the landlord.

Javins v. First National Realty Corp., 428 F.2d 1071 (D.C. Cir. May 7, 1970). The foundational case for an implied warranty of habitability in apartment leases:

We therefore hold that the Housing Regulations imply a warranty of habitability, measured by the standards which they set out, into leases of all housing that they cover.

The opinion does not discuss pests. Its only pest language is a footnote quoting the District’s housing regulation (“free from rodents or vermin”).

Wade v. Jobe, 818 P.2d 1006 (Utah Sept. 23, 1991). Utah’s adoption of the warranty; see Utah and the Wasatch Front. The court also said:

the landlord must have a reasonable time to repair material defects before a breach can be established.

Negligence and a housing-code duty

Mangan v. F.C. Pilgrim & Co., 32 Ill. App. 3d 563 (Ill. App. Ct., 1st Dist., Sept. 24, 1975). An 83-year-old tenant in a 38-unit Oak Park building fell and broke her hip; she told relatives a mouse had jumped out of her oven. Other tenants testified to mice and complaints over a long period, and the village housing code put extermination on the owner where an infestation reached two or more units or shared areas. The court wrote:

It was revealed through testimony that a long-standing rodent problem did indeed exist in the building.

Exterminating efforts by the defendants were also detailed by various witnesses, and could legitimately be deemed by the jury insufficient to adequately relieve the problem.

The verdict ran against the owner’s estate. The jury found the managing agent not liable:

The jury returned a verdict in the sum of $20,000 against Donald Messinger as special administrator of the estate of Herbert J. Johnson, and further found no liability on the part of F. C. Pilgrim & Company.

Consumer protection, reprisal and accommodation claims

Harmon v. Biltmore Realty Co., No. A-2186-16T2 (N.J. Super. Ct. App. Div. Oct. 19, 2018). Unpublished; the opinion states it is not precedent. An apartment failed a state inspection for bed bugs. The exterminator could not eliminate them,

arguably because plaintiff was physically unable to comply with the preparation procedures, which included removing all bedding and clothing, moving furniture six inches from the wall and taking down all curtains.

The resident, an elderly woman, was moved to another unit, which became infested within months. The owner then served notices over inadequate preparation. The appeal concerned only her statutory claims (consumer fraud, tenant reprisal and disability discrimination), and their dismissal was affirmed. The court noted that her common-law claims had settled:

the record demonstrates defendants settled her common law claims for $45,000

It also commented on how the owner described her:

We consider defendants’ characterization of plaintiff as an uncooperative and disruptive tenant dubious.

More on preparation and accommodation: Bed Bug Prep and Reasonable Accommodation.

No verified appellate decision was found awarding consumer-protection damages against an apartment owner over pests. For a federal enclave case in which a state consumer-protection claim was barred, see Federal Enclaves.

Punitive damages: a motel case

Mathias v. Accor Economy Lodging, Inc., 347 F.3d 672 (7th Cir. Oct. 21, 2003). A motel guest case, not a landlord-tenant case. The facts were about knowledge and refusal:

EcoLab, the extermination service that the motel used, discovered bedbugs in several rooms in the motel and recommended that it be hired to spray every room, for which it would charge the motel only $500; the motel refused.

The jury agreed and awarded each plaintiff $186,000 in punitive damages though only $5,000 in compensatory damages.

No verified residential pest punitive award was found.

Constructive eviction

No verified appellate decision holding that a pest infestation was a constructive eviction of an apartment tenant was found in the research behind this page. That theory is not described here.

What the opinions weighed

Professional synthesis, not law

Read together, the decisions above turned on a small set of facts, and none of them turned on whether a pest was ever present:

1. When the owner knew. Kolb treated notice given as soon as the tenants learned the cause as reasonable; Parrish began with written notice; Mangan with long-standing complaints.
2. Whether treatment continued to resolution. One spray and a clean look decided Kolb. Five treatments in Ludlow counted, but did not end the abatement analysis.
3. What the professional said, and whether the owner followed it. In Kolb and Parrish the owner’s own technician said more treatments were needed.
4. Whether anyone checked that the problem was gone. Kolb had no callback. Parrish had a promised follow-up that did not happen.
5. Whether the resident could do the preparation asked, and what help was offered. Harmon.
6. What happened to neighboring units and to belongings on relocation. Harmon; Ludlow’s building-wide factor; Mangan’s two-unit code rule.
7. What the lease tried to shift. Parrish.
8. What a code or inspector required, and the response. Mangan; Harmon’s failed inspection.

Those eight are the Records That Hold Up checklist.