Pest Control in Wentzville, MO

Keeping pace with one of Missouri's fastest-growing cities.

Serving Missouri since 1968
Veteran-owned, 3rd generation
100% guaranteed
Same-day service in most cases

Local pest control in Wentzville

Your Wentzville exterminator, close to home

Wentzville has grown faster than almost anywhere in the region. Farmland around the I-70, I-64 and Highway 61 interchange keeps turning into new subdivisions, and every acre that gets developed pushes field mice, insects and termite colonies toward the nearest homes. If you live on the edge of new construction, you have probably already noticed.

McCarthy covers Wentzville from both our St. Charles headquarters and our New Melle area office, so a technician is never far away. We protect new homes before problems start and help established homes near historic downtown deal with the pests older construction attracts.

We serve homes and businesses throughout Wentzville (ZIP 63385) with residential pest control, commercial service and termite protection, all backed by our free re-treatment guarantee.

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Serving Wentzville from our St. Charles headquarters

954 Sycamore Dr, St. Charles, MO 63304

(636) 441-1300

Our St. Charles headquarters in Harvester dispatches technicians across the county. Hours: M-F 7am-5pm, weekends by appointment.

What we see most

Common pests in Wentzville homes and businesses

Field mice

Construction and harvest season drive mice out of fields and into garages, basements and attached storage, usually starting in October.

Subterranean termites

Disturbed soil around new builds and older homes near downtown both see termite activity. Many builder pre-treatments wear off within a few years.

Boxelder bugs and Asian lady beetles

Homes near open land see these fall invaders cluster on sunny walls, then slip inside through window frames and siding gaps.

Ants and spiders

New landscaping, rock beds and fresh mulch next to foundations give ants and spiders easy places to set up.

Plan ahead

Wentzville pest calendar

Pest activity in St. Charles County changes with the seasons. Here is what to watch for around Wentzville through the year.

Spring

Termite swarms, ants in new landscaping

Summer

Wasps, mosquitoes near retention ponds

Fall

Field mice, boxelder bugs, lady beetles

Winter

Rodents in garages and attics

Our services

Pest control services in Wentzville, MO

Home Pest Control

Year-round protection from ants, spiders, roaches and rodents.

Commercial Pest Control

Scheduled service and records for restaurants, offices and retail.

Termite Treatment

Inspections, treatment and ongoing termite protection.

Fumigation

Targeted fumigation for stubborn, hard-to-reach infestations.

Where we work in Wentzville

We work across Wentzville, from the historic downtown to the newest subdivisions off Highway Z and Wentzville Parkway.

Historic downtown Wentzville
Wentzville Parkway corridor
Highway Z area
Highway 61 corridor
GM assembly plant area
ZIP 63385

Why Wentzville chooses McCarthy

This third-generation, veteran-owned company has provided exceptional service for thousands of residential and commercial customers since 1968. Our medium size lets us control the quality of every job and focus on customer care.

If pests return between your regularly scheduled services, we re-treat at no cost to you.

Awesome service and they keep their word. Rare these days to find a company that knows what customer service is all about. All this, quality products and at a reasonable price. It’s a no-brainer.