Denver Janitorial Services

Keeping workspaces clean, employees safe, and your mind at peace.

(424) 260-7369
A Top Commercial Janitorial Services Company in Denver

A Top Commercial Janitorial Services Company in Denver

In a COVID-19 world, professional cleaning is more important than ever before. Keep your business spotless and safe for your customers and employees with National Janitorial Services. Our commercial janitorial services company serves Denver and beyond while following the highest cleaning standards your industry requires. Leave the building maintenance and sanitation to us so you can focus on growing your business.

COVID Cleaning Services

Stop the spread and protect your business with our specialized COVID cleaning services. We use Multi-Clean Chlorinated Disinfecting Tablets, an EPA-registered disinfectant that is effective against pathogens like Staphylococcus aureus, Norovirus, and the novel coronavirus. To learn more about our chlorinated disinfecting tablets, browse the PDF below.

Download Fact Sheet

Other Commercial Cleaning Services

Janitorial Services

Janitorial Services

Get the regular cleaning your workspace demands with the highest standards of cleanliness.

Commercial Cleaning

Commercial Cleaning

From warehouses to other workspaces, we offer first-class facility cleaning and management.

Office Cleaning

Office Cleaning

Whether your office is big or small, we’ll keep your space safe for your employees.

Porter Services

Porter Services

Perfect for HOAs, nursing homes, care providers, event spaces, hotels, and much more.

Deep Cleaning

Deep Cleaning

We offer thorough, one-time cleaning efforts that we can repeat as needed throughout the year.

Disinfectant Services

Disinfectant Services

Bring your workspace into cleanliness and compliance with professional disinfectant services.

Hear from Satisfied Clients

I appreciate the diligence and professionalism of Anthony and the crew member appointed to us. During these covid times they have taken the upmost care to provide the level of cleanliness and safeguarding measures needed to insure everyone's safety. The pricing is fair and we are happy with the great service!
St. Joseph Church
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One Company, Many Industries

One Company, Many Industries

No matter what industry you’re in, we have the experience and expertise to deliver. Here are some of the industries we serve.

Some of Our Happy Clients

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The NJS Difference

Find out what makes us Long Beach’s top cleaning company.

Experienced

Experienced

With more than 100 businesses served, we tailor our cleaning services to your specific industry needs.

Good Value

Reliable & Local

We’re based in the community we serve. Count on our experts to be on time, on-budget, and on-point with our services.

Professional

Good Value

We deliver a quality experience using only the most advanced cleaning products and procedures at excellent prices.

Reliable & Local

Professional

Our experienced commercial cleaning team is fully trained, licensed and insured for your peace of mind.

Comprehensive Janitorial Services for Denver Businesses

Experience the National Janitorial Services difference. Tell us about your cleaning needs today!

Why We Love Denver

Take in the intersection of natural beauty and urban experiences in Mile High City. From the famed Red Rocks Park and Amphitheater to the city’s culture and art, Denver offers residents and visitors everything they need to thrive. Never get bored with the variety of outdoor recreation activities and things to do in the city and throughout Colorado. At NJS, we love Denver businesses and we’re here to support them with their commercial cleaning needs in a variety of industries.

Why We Love Denver