Ultimate Cleaning ServiceWindow cleaner in Renton, WA

Ultimate Cleaning Service is ranked #21 of 153 window cleaners in Renton by CR Score, with 57 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.

Ultimate Cleaning Service is open Monday to Saturday. Its listed hours are Monday to Saturday, 8 AM – 6 PM. On Saturdays it is open 8 AM to 6 PM and closed on Sundays. Hours come from the business listing; holiday hours may differ.

Serves Renton and 11 towns within 15 miles: Bryn Mawr-Skyway, Tukwila, Riverton, Fairwood, Newcastle, East Renton Highlands, SeaTac, Boulevard Park, Mercer Island, East Hill-Meridian and Burien. 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.

Ultimate Cleaning Service has a rating of 5.0 from 14 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 Ultimate Cleaning Service on (425) 445-0077. Its website is linked in the key facts on this page. Ask for a written estimate before any work starts.