Pest Control in Lake St. Louis, MO

Lakefront living without the bugs. Pest control for Lake St. Louis homes and docks.

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

Local pest control in Lake St. Louis

Your Lake St. Louis exterminator, close to home

Lake St. Louis is built around water. Homes on Lake Saint Louis and Lake St. Louise, plus the golf course and common-ground ponds, make for beautiful views and a lot of insect activity. Docks, boathouses and lakeside decks also give spiders, carpenter bees and wood-destroying insects more surfaces to work on than a typical backyard.

McCarthy treats the areas lake homes need most: shoreline vegetation where mosquitoes rest, dock and deck framing where carpenter bees drill, and foundations where moisture invites termites. Our goal is simple: you spend summer evenings on the water instead of swatting.

We serve homes and businesses throughout Lake St. Louis (ZIP 63367) with residential pest control, commercial service and termite protection, all backed by our free re-treatment guarantee.

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Serving Lake St. Louis 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 Lake St. Louis homes and businesses

Mosquitoes and midges

Shoreline plants and calm coves are resting and breeding areas. Lakefront and golf-course homes feel it most on warm evenings.

Orb weaver and fishing spiders

Lights on docks and boathouses attract insects, and spiders follow. Webs across railings and eaves are a constant chore without treatment.

Carpenter bees

Untreated wood on docks, pergolas and deck railings is a favorite target. Their round holes let moisture in and lead to rot.

Subterranean termites

Moist soil near the water and wood structures close to grade make termite protection important for lakefront homes.

Plan ahead

Lake St. Louis pest calendar

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

Spring

Carpenter bees drilling, termite swarms

Summer

Mosquitoes, midges and spiders around docks

Fall

Orb weavers at their peak, mice moving indoors

Winter

Rodents in boathouses and garages

Our services

Pest control services in Lake St. Louis, 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 Lake St. Louis

We serve homes and businesses all around both lakes and across the rest of Lake St. Louis.

Lake Saint Louis shoreline
Lake St. Louise
The Meadows area
Lake St. Louis Blvd corridor
Golf course communities
ZIP 63367

Why Lake St. Louis 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.