Pest Control for Apartments and Condos in Westchester County
Multi-unit buildings create unique pest control challenges that single-family solutions can't solve. Learn the landlord-tenant responsibilities, the most common shared-wall pests, and how effective building-wide programs work.
Michael Corsetti

Why Multi-Unit Buildings Are Fundamentally Different
A pest problem in a single-family home is contained. The same problem in a multi-unit building is never contained — it just hasn't spread yet.
Shared walls, shared plumbing chases, shared elevator shafts, and connected crawl spaces mean that an infestation in unit 2B is, within weeks or months, a building-wide issue. This is not a hypothetical. We regularly service buildings in White Plains, Yonkers, and New Rochelle where an infestation in one unit spread to multiple adjacent units before the property manager called us.
The single most effective thing a Westchester building owner or manager can do is establish a proactive, building-wide pest management program rather than responding unit-by-unit as complaints come in.
Landlord vs. Tenant Responsibility in New York
New York State law is clear: landlords are responsible for maintaining residential premises free from pest infestation as part of the implied warranty of habitability. This applies to apartments, co-ops, and condos with a landlord-tenant relationship. Specific responsibilities vary by lease and by whether the infestation was introduced by the tenant, but the baseline obligation is on the property owner.
Responsibility Matrix
Click a scenario to see the typical responsibility assignment in New York.
What an Effective Building Program Looks Like
The most effective multi-unit pest control programs we operate in Westchester share three characteristics: they are proactive (not complaint-driven), they address common areas and building envelope, and they maintain written service logs for every visit.
For a typical 10-to-30 unit building, our commercial program includes: monthly inspections of common areas (laundry room, basement, garbage area), quarterly perimeter exterior treatment, pest monitoring traps throughout common areas, and emergency response within 24 hours for acute infestation reports.
The written service log is not just good practice — it is legal protection. When a tenant claims an infestation was pre-existing or unreported, service records demonstrate the property's maintenance history.
Contact us at (877) 938-6799 or via our commercial pest control page to discuss a building management program for your property.
Written by
Michael Corsetti
Board-Certified Entomologist
Cornell-educated entomologist with 20+ years in urban pest management.