🔧 Official Rankings
10 Best Plumbers in Saint Peters, MO (August 2026)
We compared 10 plumbers serving Saint Peters and Saint Charles County, Missouri, and ranked the top providers by verified reviews, ratings, and local reputation — 17,082 customer reviews in all.
The 10 listed below hold an average rating of 4.9 out of 5, led by Grasser Electric & Home Services. Updated for August 2026.
- Plumbers ranked
- 10
- Average rating
- 4.9★
- Reviews analyzed
- 17,082
- Area codes
- 636, 314
Grasser Electric & Home Services
⭐ 5.0 · 524 reviews
60 Boone Hills Dr, St Peters, MO 63376
Jerry Kelly Heating, Air Conditioning, Electrical & Plumbing
⭐ 4.9 · 6979 reviews
4631 N St Peters Pkwy, St Peters, MO 63304
Hosack Plumbing, Heating & Cooling
⭐ 4.9 · 725 reviews
110 W Pitman St, O'Fallon, MO 63366
Hoffmann Brothers
⭐ 4.9 · 369 reviews
2046 Queens Brooke Blvd #240, St Peters, MO 63376
Mr. Rooter Plumbing of St. Charles
⭐ 4.9 · 365 reviews
50 Triad South Dr Ste A, St Peters, MO 63304
Hosack Plumbing, Heating & Cooling
⭐ 4.9 · 174 reviews
4011 N St Peters Pkwy #101, St Peters, MO 63304
Budget Heating, Cooling & Plumbing
⭐ 4.8 · 6317 reviews
325 Mid Rivers Mall Dr, St Peters, MO 63376
Roto-Rooter Plumbing & Water Cleanup
⭐ 4.8 · 1318 reviews
1237 Jungermann Rd, St Peters, MO 63376
Pierson Plumbing Sewer & Drain L.L.C
⭐ 4.8 · 171 reviews
500 Boone's Lick Rd Suite C Upper, St Charles, MO 63301
Johnstone Supply
⭐ 4.8 · 140 reviews
3120 Industrial Park Pl W Dr, St Peters, MO 63376
Plumbers listed here serve Saint Peters, Saint Charles County, and nearby ZIP codes including 63376.