Centennial has corporate campuses, medical districts, and retail centers across Arapahoe County. Colorado-founded Big League Clean provides commercial cleaning services in Centennial from our office at 6422 S Quebec St Building 4. W2 crews. Background-checked. Month-to-month. A named account manager on day one. We hold Denver Local Pack #1 for “commercial cleaning services denver” and bring that same operating standard to every Centennial account.
96.5%
Client retention
600,000 sq ft
Cleaned per week
82+
5-star Google reviews
30 min
Avg response time
2.5 yrs
Serving Denver Metro
Month-to-Month
No long-term contracts
When something needs a fix, your account manager answers. Not a call center. Not a ticket queue. New prospect inquiries average about 40 seconds. Biweekly check-ins are built into how we work.
Every crew member is a W2 employee. Background-checked before day one on site. Our cleaners average 15+ years on the job. That is well above the norm.
Every Centennial agreement is month-to-month. You are never trapped. Our clients stay because the work gets done. Not because they cannot leave.
Every scope is built on site before pricing. Big League Clean is your all-in-one provider. Windows, carpet, strip and wax, power washing, day porter, and more. All under one point of contact. Recurring clients get discounts on supplemental services.
We also serve Centennial with commercial office cleaning, window cleaning, post-construction cleaning, industrial and warehouse cleaning, retail cleaning, educational facility cleaning, apartment turnovers, day porter, floor care, and strip and wax. Call 970-805-0988 for scope and pricing on any service.
Centennial’s mix skews toward corporate offices, medical practices, retail, and professional services. Our programs cover:
Real named accounts. Not stock photos. Not generic client lists.
Centennial clients, in their own words. Every quote below is a public Google review.
We clean commercial buildings across Centennial and Arapahoe County. Southglenn and The Streets at SouthGlenn. Willow Creek. Dry Creek Business Village. The S Quebec Street corridor. Denver Tech Center southern edge. If your building is not listed, call 970-805-0988. We confirm coverage on the spot.
Walkthrough request to first service: same week for most clients.
Same week for most clients. After your walkthrough, we send a custom quote. Then we assign an account manager and get a crew on site within days.
Yes. We operate 24/7. We work overnight, weekends, or around your hours.
Yes. We use OSHA HCS-compliant chemistry and EPA-approved disinfectants. SDS sheets on file so you know what is used on site.
No. Every Centennial agreement is month-to-month. We back every clean with a 100% satisfaction guarantee.
Yes. For urgent requests or same-day turnover work, call your account manager or 970-805-0988.
Yes. Every crew member is a W2 employee. Background-checked before day one on site. Cleaners average 15+ years of experience.
Pricing varies by facility type and cleaning frequency. Office spaces typically run $0.12 to $0.22 per square foot. Medical facilities run $0.20 to $0.35. Industrial and warehouse run $0.08 to $0.15. Monthly contracts range from about $1,400 to $12,500. The most accurate way to price your building is a free on-site walkthrough.
Yes. Our low employee turnover means the same trained crew shows up week after week. They learn your space, your standards, and your preferences. Your dedicated account manager adds a second layer of continuity: one named point of contact who owns your relationship.
Every scope comes with a full credential pack for your procurement team.
For business permits, updates, and community support in Centennial, visit the City of Centennial Official Website. For public health and workplace safety guidance, see the Tri-County Health Department.
We clean over 700,000 square feet every week across Colorado and Southern California. W2 crews. Month-to-month agreements. 14-minute average response time. Named account managers who pick up the phone. Request a free walkthrough at your Centennial building.