Pest Control in St. Peters, MO

Family-owned pest and termite control for St. Peters homes and businesses.

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

Local pest control in St. Peters

Your St. Peters exterminator, close to home

St. Peters mixes established neighborhoods, busy retail along Mid Rivers Mall Drive and plenty of green space around Dardenne Creek and 370 Lakeside Park. That combination means homeowners deal with outdoor pests like mosquitoes and ants in summer, while apartment communities and restaurants need steady cockroach and rodent prevention all year.

McCarthy has served St. Peters families for decades from our nearby Harvester headquarters. Our technicians know which subdivisions back up to creek floodplains, which older homes near Old Town have crawlspaces, and how to keep a commercial kitchen inspection-ready.

We serve homes and businesses throughout St. Peters (ZIP 63376) with residential pest control, commercial service and termite protection, all backed by our free re-treatment guarantee.

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Serving St. Peters 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 St. Peters homes and businesses

Mosquitoes

Dardenne Creek, Spencer Creek and the 370 Lakeside Park area hold water after storms. Yards that back up to these green spaces see the heaviest biting pressure.

German cockroaches

Apartment complexes and restaurants near Mid Rivers Mall Drive are where roaches spread fastest, unit to unit. We treat at the source and seal shared plumbing chases.

Pavement and odorous house ants

Slab-on-grade homes and long driveways give ants easy nesting under concrete, then entry at expansion joints and door thresholds.

House mice

When fields and creek edges cool down in October, mice look for warm garages and basements across St. Peters.

Plan ahead

St. Peters pest calendar

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

Spring

Ant colonies wake up, termite swarms in older slabs

Summer

Mosquitoes near creeks and lakes, wasps

Fall

Mice, crickets and spiders move inside

Winter

Cockroaches in multi-family housing, rodents

Our services

Pest control services in St. Peters, 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 St. Peters

Single-family homes, apartment communities and businesses across St. Peters are in our regular service routes.

Old Town St. Peters
Mid Rivers Mall area
370 Lakeside Park area
Spencer Creek
St. Peters Rec-Plex area
Jungermann Road corridor
Cave Springs area
ZIP 63376

Why St. Peters 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.

Ray T.
★★★★★

St. Peters pest control FAQs

Why are mosquitoes so bad in parts of St. Peters?

Many St. Peters neighborhoods border Dardenne Creek, Spencer Creek or retention ponds. Those areas hold standing water after rain, which is exactly where mosquitoes breed. A barrier treatment plus removing small water sources around your yard makes a noticeable difference.

Can you treat my apartment for cockroaches?

Yes. We work with tenants, landlords and property managers. For German cockroaches, treating neighboring units at the same time gives the best and longest-lasting result.