🐜 Official Rankings
10 Best Pest Control in O'Fallon, MO (September 2026)
We compared 10 pest control serving O'Fallon and Saint Charles County, Missouri, and ranked the top providers by verified reviews, ratings, and local reputation — 2,311 customer reviews in all.
The 10 listed below hold an average rating of 4.9 out of 5, led by Buckingham Pest Control. Updated for September 2026.
- Pest Control ranked
- 10
- Average rating
- 4.9★
- Reviews analyzed
- 2,311
- Area codes
- 636, 314
#1
⭐ 5.0 · 1026 reviews
2720 S St Peters Pkwy, St Peters, MO 63303
#2
⭐ 5.0 · 225 reviews
1220 Twinleaf Cir, O'Fallon, MO 63376
#3
#4
⭐ 4.9 · 479 reviews
1600 Heritage Landing Ste 212j, St Peters, MO 63303
#5
#6
#7
#8
⭐ 5.0 · 35 reviews
2977 State Hwy K #160, O'Fallon, MO 63368
#9
#10
⭐ 5.0 · 12 reviews
1496 Brittany Cove Dr, Cottleville, MO 63304