Ascent Building ServiceWindow cleaner in Chicago, IL

Ascent Building Service is ranked #46 of 146 window cleaners in Chicago 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.

Ascent Building Service is open Monday to Friday. Its listed hours are Monday to Friday, 7 AM – 7 PM. It is closed on Saturdays and closed on Sundays. Hours come from the business listing; holiday hours may differ.

Serves Chicago and 11 towns within 15 miles: West Town, Chicago Loop, Near North Side, East Garfield Park, Lower West Side, Lincoln Park, Near South Side, Logan Square, Bridgeport, North Lawndale and West Garfield Park. 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.

Ascent Building Service has a rating of 4.6 from 23 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 Ascent Building Service on (888) 312-0079. The business is at 321 N Loomis St Suite 204, Chicago, IL 60607. Its website is linked in the key facts on this page. Ask for a written estimate before any work starts.