Forget Cleaning Forever™
The Commercial Cleaning Service In Denver You Don’t Have To Manage
For busy facility and office managers in Denver who are done chasing cleaners. Our Zero-Complaint Protocol™ and Money-Back Quality Promise keep your building clean, quiet, and off your plate - or you don’t pay.
or call (303) 550-2485
CONTACT OUR OFFICE
Assett Commercial Services of Denver
Serving Denver, Aurora, Lakewood, Littleton, Englewood, Centennial, Arvada, Broomfield, Highlands Ranch and Parker
Phone
Hours
Open 24 hours, 7 days a week
Why Building Managers In the Denver Metro Call Us
Somebody in every Denver building gets the call when the carpet looks gray or the break room smells by Thursday. A commercial cleaning service is supposed to keep that call from coming. When the service falls down, the job lands back on your desk, usually for one of three reasons.
Problems Reach You First
An overflowing bin shows up in a tenant's email to you before your cleaning company says a word.
The Quality Faded
The first quarter went fine. Since then the baseboards and vents get skipped, and you write the same note every Monday.
You Spend Time Chasing
Your messages sit unanswered for days, and nobody can say who was inside the suite last night or what they did.
We clean offices, medical practices, schools, banks, industrial plants, and more. Most of our accounts sit in the Denver Tech Center, Cherry Creek and Lowry, on the Colorado Boulevard stretch, and in the office parks off Interstate 25.
Forget Cleaning Forever With Our Zero‑Complaint Protocol™
Our proven system keeps your facility ready for staff and visitors, catches issues early, and backs you with the Assett Quality Promise.
Clean building, zero babysitting
Walk in knowing your facility is ready for staff, visitors, and leadership without you sending reminder emails or walking the halls to double-check.
Consistency that doesn’t fade after month three
Facility-specific training, photo-verified checklists, and ongoing audits keep standards from quietly slipping over time. You don’t wake up to a surprise ‘dumpster fire’ a year in.
People you trust with your building and your badge
W‑2 employees only, vetted through multi-step interviews, background checks, and OSHA / safety training, so you’re not worrying about who’s in your space after hours.
Assett Quality Promise
If you ever have to fix a cleaning issue we were responsible for, that service is on us. You shouldn’t have to pay for problems.
What Our Clients Notice
What Clients Say on Google
5.0 out of 5 from 13 Google reviews
“We recently began working with Assett Commercial Services and could not be happier! They are very competitively priced and the quality of work is outstanding!”
John Glosek
“Great office cleaning company! They are thorough and pay attention to detail—everything is always spotless when they’re done. They show up on time, are reliable, and very professional. Highly recommend.”
Steve Horvath
“We recently switched from another company that was very unreliable to Assett Commercial and wow what a big difference! They are very professional, punctual, efficient and thorough. It can be tough working around all of us but Trent and crew get it done quickly and done well every time. I cant say enough good things about them and I highly recommend these guys for facility cleaning services!”
Kris Painter
“We’ve been with Assett Commercial for the last few months now, and I can’t say enough good things. Their crew is punctual, friendly, and pays attention to every detail. It’s such a relief knowing our facility is in great hands. Tyler and his team are true professionals!”
Duncan Lowery
Office Cleaning, Janitorial Services and More in Denver
Pricing comes after we have walked your floors together and listed what gets cleaned and how often. Our janitorial service works from that list each night or on the weekdays you pick, while our office cleaning service covers the open offices, front desks and conference rooms your clients walk through. Any mix of services fits in one agreement.
Office Cleaning
For tenant suites in the Denver Tech Center and along Colorado Boulevard.
Medical Facility Cleaning
Clinics and dental offices, with exam rooms and every surface patients touch wiped down on each shift.
Janitorial Services
Nightly or a few nights a week, following the list we wrote on the walkthrough.
Custodial Services
For warehouses, flex space and bigger buildings near Interstate 25.
Day Porter Services
A porter in the building through the workday, restocking restrooms and keeping the entry presentable.
Construction Cleaning
Drywall dust and leftover debris cleared after a tenant finish, before anyone moves in.
Who Cleans Your Building Here
Assett Commercial Services of Denver cleans for 12 clients across the metro, chiefly schools and child care centers, offices and churches, spread between the Denver Tech Center, Cherry Creek and Lowry.
Everyone on the team is hired and trained by this office before working a building on their own. Google reviewers often name the crew leads who handle their sites.
The line, (303) 550-2485, is answered day and night. One office books your crew, checks its work and answers for it.
The Easy Start
Your Path to a Flawless, Hassle-Free Facility
Experience the zero-complaint transition. We've streamlined the process to respect your time and solve your cleaning frustrations fast.
01
The Quote Request
Click any of the orange buttons on this page and share a few basic details. We respond within one business hour to schedule your streamlined site visit.
02
The Streamlined Site Visit
A representative from our local office visits your facility — efficient, professional, and respectful of your time — to understand your needs.
03
The Zero-Gap Go-Live
No downtime, no drama. We present your no-obligation plan, then run your Zero-Gap Transition Plan — agreements, staffing, training, and access all sequenced before day one — so your facility moves to the Zero-Complaint Protocol™ with zero disruption. And your first week is free.
Questions Building Managers Ask Us
Who is in my building, and how are your cleaners vetted?
Every person we send is on our own payroll; we do not hand your building to a subcontractor. Candidates clear eight stages of screening before hire, several interviews and a background check among them, and they learn your floor plan on a supervised shift before working there alone.
How does quality stay up after month three?
Plenty of Denver offices have watched a new cleaner coast after the first quarter. We guard against it three ways: each line on your checklist is photographed during the clean, a manager inspects your building on a fixed calendar, and you receive a short written recap. Slippage in a Cherry Creek suite or a DTC tower gets caught on our side first.
What if there's a problem, and how fast do you fix it?
You get the mobile numbers of the managers on your account, so there is no queue to sit in, and (303) 550-2485 is staffed 24 hours a day. If the miss traces back to us, we make it right under the Assett Quality Promise and you are not billed for it.
What's included in your janitorial service?
Whatever the walkthrough turns up goes on the list: restrooms, trash, floors, dusting, break rooms and the handles, switches and rails people touch all day, on the nights you pick. Porter hours or a post-construction clean can be added to the same agreement.
How does switching to a new office cleaning service work?
We tour the space, write the scope, train a crew on your building and start whenever you say. There is no annual contract; the agreement runs one month at a time, and the opening week carries no charge. The Denver office coordinates the handover from your current provider so your staff are not caught in the middle.
Are you insured and compliant, and do you have references?
Yes. Our cleaners are trained in OSHA bloodborne pathogens safety before their first shift, and each building keeps a current safety data sheet binder with every product labeled. Thirteen Denver clients have reviewed us on Google, and the office can connect you with references.
How do I know what was actually done?
The cleaner cannot close out the night until each checklist item has a photo taken on site, with the time recorded on it, so every clean leaves a dated record you can look back on. Separately, a manager walks your building on a regular calendar and emails you a short summary.
What happens if a crew can't make it one night?
If someone calls out, you know before the workday starts, along with the name of the person filling in, nearly always a cleaner who has already worked your building. You hear it from a manager at the Denver office, never an answering service.
Contact Our Office
Assett Commercial Services of Denver
(303) 550-2485
Open 24 hours, 7 days a week
Serving Denver, Aurora, Lakewood, Littleton, Englewood, Centennial, Arvada, Broomfield, Highlands Ranch and Parker