Pest ShieldPest control company in Saint Charles, MO

Pest Shield is ranked #38 of 134 pest control companies in Saint Charles by CR Score, with 56 out of 100 as of November 2026. The score weighs reputation, credentials, review volume, recency, availability, trade focus, proximity, claimed profile, partnered and ContractorsRanked reviews. No business can pay to change its rank.

Pest Shield is open Monday to Friday. Its listed hours are Monday to Friday, 8 AM – 5 PM. It is closed on Saturdays and closed on Sundays. Hours come from the business listing; holiday hours may differ.

Serves Saint Charles and 11 towns within 25 miles: Saint Peters, Weldon Spring, Chesterfield, O'Fallon, Dardenne Prairie, Maryland Heights, Bridgeton, Ellisville, Lake Saint Louis, Ballwin and Creve Coeur. The list is based on the business's location and the usual service radius for pest control. Confirm your address is covered when you call.

Pest Shield has a rating of 4.9 from 62 Google reviews. The CR Score adjusts the star rating for review count, so a high rating from a few reviews counts for less than the same rating from many.

Call Pest Shield on (636) 626-7378. The business is at 4215 Old Hwy 94 S, St Charles, MO 63304, Saint Charles, MO. Its website is linked in the key facts on this page. Ask for a written estimate before any work starts.