Professional Cleaning. Mammoth-Level Reliability.
Commercial janitorial services done right — every time. Locally owned, fully insured, and proud to serve the Reno and surrounding area.
What We Clean
From offices to facilities and multi-site operations, Mammoth Janitorial proudly delivers high-quality, commercial cleaning — showing up every time to keep your workplace clean and ready for business!
Licensed & Insured
Licensed and insured, so you can trust the quality behind every visit.
Locally Owned
Reno-based and area-proud since day one.
Satisfaction Guaranteed
Quality is our top priority. Our team responds swiftly to ensure your workplace meets our standards of excellence.
Flexible Scheduling
Daily, weekly, monthly options.
"The best office cleaning service I've found in Reno. Our workspace has never looked this good. The crew is friendly, detail-oriented, and they never miss a corner."
Linda K.
Office Manager · Reno, NV
"We hired Mammoth for a move-in clean on a new rental property and they knocked it out of the park. Every room was spotless and move-in ready the same day. Couldn't be happier."
Derek T.
Property Manager · Reno, NV
"Mammoth Janitorial has been cleaning our office for over a year and the results are consistently outstanding. The team is professional, thorough, and always on time. Our staff noticed the difference immediately."
David R.
Office Manager · Reno, NV
"We needed a cleaning service that understood the standards required for a medical environment. Mammoth Janitorial delivers every single time — thorough, discreet, and completely reliable. Our patients and staff notice the difference."
Sandra M.
Practice Manager · Reno, NV
Ready for a Workplace That Shines?
Running a business is tough enough — keeping it clean shouldn't be. Get your free quote today!