#1
Ultrasteam LLC
“I have been using Ultra Steam St Louis for several years. I have always experienced a 5 star cleaning w/their service for our carpets upstairs and in basement. They also treat pet problems phenomenal. I highly…” — Google review
Best Commercial Cleaning Services in Frontenac, MO
The 10 best-rated commercial cleaning services in Frontenac, MO average 4.9★ on Google across 9,494 reviews. Ultrasteam LLC has the top rating (5.0★), and Zerorez of St. Louis has the most reviews (5,940). Updated October 26, 2026.
10 companies that meet our bar: rated 4.5★ or higher on Google, with a meaningful review history (9,494 reviews combined) and currently operating. Request a call back and the company will phone you directly.
#2
Zerorez of St. Louis
“10/10 experience with Stephen at Zerorez! Extremely courteous and professional, explained all costs to me, and was in and out in less than an hour. Will absolutely be calling again!” — Google review
#3
Better Life Home Cleaning
“It's hard to maintain the house to the level of clean that makes me feel good and when work and life was getting too busy I decided to go for it and hire a cleaning service. This was such an easy process. Anthony did…” — Google review
#4
Voda Cleaning & Restoration of St. Louis
“VODE did a fantastic job on a mold remediation effort at my primary residence! They were timely in response to quote the job and in completing the work. They were very knowledgeable, they took measures to protective…” — Google review
#5
Dirt Blasters Carpet Cleaning LLC
“Super quick booking, amazing service cleaning a couch and multiple armchairs. They were very thorough and even got all the pet hair out of the tops of the armchairs that a different company had struggled to remove in…” — Google review
#6
Woodard
“Jeremy did an excellent job. He was worried that the spots didn’t come out all the way. But they came out mostly and I’m more than happy with the outcome! He was friendly, professional, honest and taught me about…” — Google review
#7
Oxi Fresh Carpet Cleaning
“My living room carpet has flooded due to AC leakage.They came in and were very fast and were able to get the older out be, tech himself was very courteous, very nice.It was a good experience.I highly recommend” — Google review
#8
Ancenta Cleaning Services
“Our office has never looked better! We hired Ancenta Cleaning Services for a deep clean and have now moved them to a regular schedule. The team is extremely thorough, punctual and respectful of our staff and…” — Google review
#9
St. Louis Kwik Dry Total Cleaning
“Mary and her team are fantastic. They came out to our new house and cleaned/sanitized all the air ducts. They have excellent customer service, were super informative to a new home owner, and very detailed. They go…” — Google review
#10
Elsa’s cleaning company LLC
“I was in a pinch to get out of my apartment in time. i have so many things on my plate right now, that I simply did not have time to make the final clean. When I tell you my counters were literally sparkling, the…” — Google review
How we pick commercial cleaning services in Frontenac
We scan Google Maps for commercial cleaning service listings in and around Frontenac, keep only open businesses whose main category matches the service, and require a Google rating of at least 4.5 from at least 20 reviews. Companies are ordered by a confidence-weighted score that balances rating and review volume. We do not accept payment for placement.
Frequently asked questions
Who is the highest-rated commercial cleaning service in Frontenac?
Ultrasteam LLC has the highest Google rating on our Frontenac list: 5.0 out of 5 from 800 reviews (as of October 26, 2026).
Which commercial cleaning service in Frontenac has the most reviews?
Zerorez of St. Louis has the most Google reviews among the companies listed here: 5,940, with a 4.9★ average.
How are these commercial cleaning services chosen?
Only open Frontenac-area businesses whose Google category matches the service, rated at least 4.5★ from at least 20 Google reviews. They are ordered by a confidence-weighted score of rating and review volume. Placement is never paid.