Bi-State Pool & SpaPool builder in O'Fallon, MO

Bi-State Pool & Spa is ranked #14 of 108 pool builders in O'Fallon by CR Score, with 55 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.

Bi-State Pool & Spa is open Monday to Friday. Its listed hours are Monday to Friday, 8 AM – 4 PM. It is closed on Saturdays and closed on Sundays. Hours come from the business listing; holiday hours may differ.

Serves O'Fallon and 11 towns within 40 miles: Dardenne Prairie, Lake Saint Louis, Saint Peters, Weldon Spring, Wentzville, Saint Charles, Chesterfield, Wildwood, Bridgeton, Maryland Heights and Ellisville. The list is based on the business's location and the usual service radius for pool building. Confirm your address is covered when you call.

Bi-State Pool & Spa has a rating of 4.2 from 69 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 Bi-State Pool & Spa on (636) 379-3000. The business is at 509 Civic Park Dr, O'Fallon, MO 63366. Its website is linked in the key facts on this page. Ask for a written estimate before any work starts.