Monarch Window CleaningWindow cleaner in St. Louis, MO

Monarch Window Cleaning is ranked #10 of 54 window cleaners in St. Louis by CR Score, with 58 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.

Monarch Window Cleaning is open 7 days a week. Its listed hours are Monday to Sunday, 8 AM – 6 PM. On Saturdays it is open 8 AM to 6 PM, and on Sundays 8 AM to 6 PM. Hours come from the business listing; holiday hours may differ.

Serves St. Louis and 11 towns within 15 miles: University City, Clayton, Richmond Heights, Jennings, Maplewood, Bellefontaine Neighbors, Brentwood, Shrewsbury, Saint Johns, Saint John and Dellwood. The list is based on the business's location and the usual service radius for window cleaning. Confirm your address is covered when you call.

Monarch Window Cleaning has a rating of 5.0 from 9 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 Monarch Window Cleaning on (314) 282-2824. Its website is linked in the key facts on this page. Ask for a written estimate before any work starts.