Pest Control in O Fallon, MO
77 pest control companies in O Fallon, MO, 77 with free inspections.
77Companies
4.8Avg Rating
4Services
April 2026 Pest Threats in Missouri
Wildlifehigh
Antsmoderate
Termitesmoderate
Peak spring litter season; baby animals in attics and chimneys
O Fallon has 77 pest control companies across 4 service categories, with an average rating of 4.8 out of 5. Of these, all provide free initial inspections. Over 80% of companies maintain a 4.5-star rating or higher.
Pest Season Calendar for MO
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
Mice
Bed Bugs
Stinging Insects
Ants
Wildlife
Mosquitoes
high
moderate
low
None
Now
Pest Control Companies Near O Fallon
Loading map...
All Pest Control Companies in O Fallon, MO
Filters
Mantis Pest Control of St. Louis
O'Fallon, MO
(314) 410-9853Quote
5.0(47)Free Inspection
(314) 410-9853
A1 St Louis Bed Bug Exterminator
O'Fallon, MO
(314) 207-6170Quote
4.9(27)Free Inspection
(314) 207-6170
Wildlife Control Solutions, Inc.
O'Fallon, MO
(636) 233-2444Quote
4.3(11)Free Inspection
(636) 233-2444
Pest Control Services in O Fallon
What to Expect: Treatment Timeline
Select a pest type to see a typical treatment schedule
Day 1
Initial inspection and assessment
Day 1-3
First treatment application
Week 2
Follow-up inspection
Month 1
Monitoring visit
Quarterly
Ongoing prevention (if contracted)
Nearby Cities in Missouri
Listings are sourced from public records and may not reflect current business status. PestControlCheck does not endorse or guarantee any company. Verify licenses and insurance independently before hiring. Terms | Privacy