Chicagoland's Premier Commercial Cleaning Company
From the Loop to River North and Fulton Market, downtown Chicago runs on tight after-hours access windows, and from November to March a steady tide of road salt moves through every lobby. Cortex Cleaning is built for that schedule and that grime.
Talk to a real person about your building, your schedule, and your budget.
A multi-tenant tower doesn’t run on one building manager’s schedule it runs on dozens of tenants’ security windows stacked together, plus a shared freight elevator and loading dock. Crews move fast inside narrow slots without disrupting building access.
Winter adds another layer: lobbies, elevator landings, and entry mats need near-daily attention for months to keep tracked-in salt from damaging the flooring underneath.
Downtown’s client mix leans on hospitality, medical, and event-driven businesses. Hotels and restaurants around River North and the Loop need front-of-house cleaning that holds up under constant guest traffic.
Medical offices in the Loop need sanitation standards that never slip, and event venues from Fulton Market to McCormick Place need fast resets between bookings. Warehouse operators, gyms, apartment buildings, recreational centers, and schools across the city round out our client base.
Warehouse & Industrial
Hospitality / O’Hare
Medical & Healthcare
Apartments
Gyms & Fitness
Event Centers
Recreational Centers
Schools
The services downtown clients call us for most:
01
Top-to-bottom deep cleans reset tower lobbies, restrooms, and tenant suites inside the same after-hours access windows.
02
Interior and exterior glass, including full exterior high-rise washing by technicians trained and equipped for suspended work under OSHA fall-protection standards.
03
Daytime porter coverage keeps lobbies and elevator landings clear through winter salt season and heavy pedestrian volume.
04
Lobby and corridor flooring stripped and rewaxed on a cycle that accounts for salt-driven wear from November through March.
05
Deep extraction pulls out the grit and salt residue tracked in from sidewalks and the CTA.
06
Nightly office cleaning that fits inside narrow building-access slots badged, scheduled, and out before morning.
07
Post-renovation cleanup for the city’s steady pace of office build-outs and retrofits.
08
Restaurant and hospitality kitchens around River North cleaned to health-code standards for high-volume service.
Free walkthrough, no obligation, and a quote back within one business day.
Cortex Cleaning serves hospitality, medical, and event-driven clients throughout Chicago as part of a 50-mile Chicagoland service area run from our Geneva home base. Every crew is fully insured, and we handle the paperwork downtown buildings actually demand: certificates of insurance delivered to property management before the first shift, with freight-elevator and dock time booked by us.
Simply put, if anything’s missed, flag it and we’ll correct it on the next visit at no charge.
Fully insured COI sent before we start
Inside our fastest-response 50-mile zone
Trained on shift-based industrial scheduling
Missed spot? Fixed next visit, free
Yes, we schedule around each tenant’s security and access requirements and book freight-elevator time ourselves.
Both interior and lobby glass are routine, and our technicians perform exterior washing under OSHA fall-protection standards.
Yes, lobby, entry-mat, and elevator-landing service scales up automatically from November through March.
Yes, with protocols built for medical-grade sanitation, scheduled around patient hours.
Yes, every crew is fully insured, and we deliver a certificate of insurance with additional-insured language before the first shift.
Insured crews built for tower access windows, winter lobbies, and exterior high-rise glass.
