How Much Does Pest Control Cost in Westchester County? (2026 Guide)

Westchester County has a pest problem that matches its housing stock: old homes, mature trees, and proximity to New York City create conditions where rodents, termites, ticks, and wildlife all thrive.

Most of the housing here was built between the 1920s and 1960s. That means stone foundations with gaps, aging sill plates that attract termites, and decades of settled landscaping that gives pests easy harborage. The southern part of the county (Yonkers, Mount Vernon) deals heavily with rodents and roaches because of urban density. The northern towns (Somers, Yorktown Heights, North Salem) fight ticks and wildlife.

We list 52 pest control companies across Westchester County. Prices here run 20 to 30% above national averages because of high labor costs, dense construction that makes access difficult, and the sheer age of the building stock. Here is what people are paying right now.

The pest problems in southern Westchester are completely different from what you see up north. The pricing reflects that.

Yonkers and Mount Vernon are the rodent capitals of the county. Dense housing, aging multi-family buildings, and proximity to the Bronx mean rats and mice are a constant issue. Rodent exclusion jobs here often run $500 to $900 because there are so many entry points in older row houses and apartment buildings. German cockroaches are also common in multi-unit dwellings, where a single infested apartment can spread to the entire building. If you own rental property in Yonkers, expect to spend $200 to $400 quarterly just to keep things under control.

New Rochelle and Mamaroneck deal with a mix of urban and suburban pests. The coastal location adds moisture problems that attract carpenter ants and termites. Homes near the harbor or Long Island Sound have higher termite pressure because the soil stays damp longer. Termite treatments in these waterfront areas average $1,500 to $2,500.

Scarsdale and Bronxville have larger properties with mature landscaping. The pest profile shifts toward wildlife (raccoons in attics, squirrels chewing into soffits), carpenter bees boring into deck posts, and tick infestations in wooded yard margins. The homes are bigger, so whole-house treatments cost more. A bed bug heat treatment in a 3,500 sq ft Scarsdale colonial runs $3,500 to $5,000.

White Plains sits in the middle of the county and has a mix of everything: commercial pest issues downtown, residential rodent work in the neighborhoods around Mamaroneck Avenue, and tick spraying for properties near the Bronx River Parkway corridor.

Westchester's pest profile is shaped by its position between New York City and the rural Hudson Valley. You get urban pests in the south and rural pests in the north, with plenty of overlap in between.

Rodents are the number one call for exterminators in southern Westchester. Norway rats burrow along foundations and sewer lines, especially in Yonkers, Mount Vernon, and older sections of New Rochelle. House mice squeeze through gaps as small as a quarter inch. Fall and early winter are peak season as rodents move indoors when temperatures drop. Exclusion (sealing entry points) is the only lasting solution. Trapping alone does not work if the holes are still open.

Eastern subterranean termites are present throughout the county. Westchester sits in a moderate-to-heavy termite pressure zone. Homes built before 1980 are most vulnerable because they were not pre-treated during construction. Termites need soil contact and moisture, so homes with dirt crawlspaces, wood-to-soil contact at the foundation, or chronic drainage problems are at highest risk. The damage is silent. By the time you see winged swarmers inside (usually April or May), the colony has been eating your house for years.

Blacklegged ticks (deer ticks) are a serious health concern across the county. Westchester has one of the highest Lyme disease rates in New York State. Tick populations peak from April through July and again in October. Professional yard treatments cost $75 to $150 per spray and most companies recommend 5 to 7 applications per season.

Bed bugs have made a major comeback in Westchester over the past decade. They spread through shared laundry rooms, secondhand furniture, and hotel stays. Unlike roaches or rodents, bed bugs have nothing to do with cleanliness. A single pregnant female can start an infestation. Heat treatment (raising room temperature above 120 degrees) is the most effective single-visit solution, but it costs significantly more than chemical treatment.

Carpenter ants are common in homes near wooded areas or with moisture damage. They do not eat wood like termites do, but they excavate galleries inside it for nesting. Look for small piles of sawdust-like frass near baseboards or window frames.

Westchester has 52 pest control companies listed on our site, ranging from national chains to family-owned operations that have served the county for decades. Here is how to sort through them.

First, verify the DEC certification. You can search the New York State Pesticide Administration Database (NYSPAD) at extapps.dec.ny.gov/nyspad to confirm a company's applicators are certified and current. If they are not in the database, walk away.

Insurance matters more than you think. A pest control technician is applying chemicals inside your home. They need general liability insurance ($1 million minimum) and workers' compensation. Ask for a certificate and actually call the insurer to confirm it is active.

Look for companies that do an inspection before quoting. Anyone who gives you a price over the phone without seeing the property is guessing. A real inspection takes 30 to 60 minutes and should include the basement, attic, crawlspace, and exterior foundation.

For termites specifically, get at least two opinions. The termite treatment industry has a history of high-pressure sales tactics. If one company says you have termites and recommends a $3,000 treatment, get a second inspection before committing. The inspection should be free if treatment is being considered.

Avoid companies that only offer one treatment method for every problem. Good pest management uses an Integrated Pest Management (IPM) approach: identify the pest, find the source, fix the conditions that support it, and then treat if necessary. Chemical-only solutions are temporary if the root cause is not addressed.

Pest activity in Westchester follows a seasonal pattern that determines when to call and what to treat.

Late winter and early spring (February through April) is the best time for a termite inspection. Swarmers emerge in April and May, but by then the colony has been active for years. Getting an inspection done before swarm season lets you catch problems before they get worse.

Spring (March through May) is when ants, including carpenter ants, become active. If you are seeing large black ants inside the house during these months, especially near bathrooms or the kitchen, call an exterminator before the colony establishes satellite nests in your walls.

Summer (June through August) is peak season for ticks, mosquitoes, wasps, and wildlife conflicts. Yard spray programs for ticks should start in April and run through October. Most companies offer seasonal packages of 5 to 7 treatments.

Fall (September through November) is rodent season. Mice and rats start seeking indoor shelter when nighttime temperatures drop below 50 degrees. The best time to do exclusion work is September, before the migration starts. Sealing entry points in October costs the same as September, but by then the mice may already be inside.

Winter (December through February) is the slowest season, which means some companies offer discounted annual contracts if you sign up during the off-season. Bed bug calls actually increase during winter because people spend more time indoors and notice the bites.