Commercial Janitorial &
Maintenance Services

For warehouses, shopping centers, lifestyle centers, commercial office buildings and more!

About Us

Specializing in union properties, Nationwide Janitorial Services, Inc. (NJSI) provides janitorial and maintenance services for warehouses, shopping centers, lifestyle centers, commercial office buildings and more.

With over 30 years of cleaning industry experience our professional team provides exceptional cleaning and maintenance service. We attribute our longevity and success to attracting and retaining top level management who strive to be their best every day. We recognize the critical importance of strong on-site and corporate management in dealing with daily operations.  When issues arise, we provide easy and immediate resolution.

At NJSI, we know each property is unique. We build quality custom programs to fit the needs of each client and property. The added value of industry leading technology, crowd-based data scheduling, and knowledge of union regulations makes NJSI the perfect partner for union labor properties. NJSI’s cleaning and maintenance programs deliver services efficiently, effectively, and to our clients’ full satisfaction.




Janitorial & Housekeeping

NJSI custom tailors janitorial and housekeeping programs. Each unique program may include cleaning during business, or closed-hours, porter service during business hours, and cleaning of exterior landscaped and concrete areas.



NJSI is well experienced in maintaining all floor surfaces.  Specific technical knowledge is necessary to effectively maintain this valuable investment, NJSI has trained professionals to assist you in keeping the integrity and beauty of each type of flooring surface.


Green Clean

NJSI has a team of experts versed in updated “Green” cleaning practices. We have established relationships with national suppliers of Environmentally Preferable Products (EPP) to provide environmentally sensitive cleaning services to meet each client’s strategic need.


NJSI has vast experience in bargaining, negotiating and developing workable and cost-effective solutions to cleaning and maintenance challenges. Whether you require project consultation, or a retainer for strategic partnership, our union experts are here to help.


Employee W2 Request

If you need to request your employee W2, please click the button below:

Contact Us

Do you need cleaning or maintenance services? We're happy to provide you with a proposal. Contact us today!


(314) 427-4588


P.O. Box 8301
St. Louis, MO 63132

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