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703  370  1190





Welcome to Nationwide Janitorial Services, Inc. (NJSI) Nationwide Janitorial Services, Inc. (NJSI) provides janitorial services for multi-family
residential communities, office buildings, commercial, religious and retail facilities and construction cleaning in Northern Virginia,
Maryland and Washington DC area. 

NJSI was founded in 1987, by Al D. Pai who was a local high school teacher cleaning one small building by himself, as a second job, to provide
for his family.  He knew this was an opportunity to become an entrepreneur and achieve “The American Dream” he had envisioned as an
immigrant student moving to the United States.  After a well fought battle with cancer and his unfortunate death in 2005, Janette Pai Kim,
his daughter, resigned from her 14 years of service with the Department of Defense and stepped in to continue his legacy as President of NJSI. 
Under her leadership NJSI has achieved certification as a 100 percent minority woman-owned small business, with years of successful history. 
Our current portfolio includes some of the most impressive property management companies in the Washington DC Metropolitan area.

At NJSI, we understand that each property is unique with individual needs.  Your business needs a trusted cleaning partner that will
maintain your facility/property at the highest standards for the long-term.  NJSI ensures that you have reliable, well-trained employees
assigned to your facility/property, while providing you with the affordable services.  Allow NJSI the opportunity to work with you to
develop a customized solution tailor-made to fit your business needs.  This customized solution will enhance your
property value and provide a clean, healthy and comfortable environment for your tenants and employees.



Commercial Cleaning

NJSI has been dedicated to providing the highest quality commercial janitorial services to a broad range of businesses. We specialize in meeting the unique needs of educational, religious and retail facilities, office buildings, private office spaces and independent medical facilities.

Green Cleaning

NJSI is committed to providing property and building management with the most environmentally responsible cleaning and facility maintenance solutions. We combine certified chemicals, tools, equipment, training and processes to reduce the environmental footprint for future generations.

Multi-Family Residential

NJSI is trusted by multiple leading property management companies to clean entrances, shared hallways, and other common area spaces.  We conduct a thorough evaluation of your property and cleaning requirements to provide you with a custom cleaning regiment, providing both client and tenant a clean, safe and healthy environment.

Post Construction Clean

Construction work creates a lot of dust, dirt and debris.  It takes a rigorous and meticulous cleaning session to remove all traces from the site.  A final deep clean allows our client to meet its completion date and turnover the property ready for business.

Floor Care


Resilient vinyl floor covering of some type is common in high traffic areas. Like other types of floors, vinyl floor coverings have their own cleaning and maintenance requirements. Depending on the installed surface, special care needs to be taken to protect them. Over time finishes and grime can build up creating the need to strip and wax floors.  NJSI's Floor Technicians have the vinyl floor cleaning experience and tools necessary to bring it back to life.

When your hardwood flooring begins to look dull, NJSI can solve that problem at far less cost than replacing your hardwood floors.  We utilize heavy-duty drum sanders and equipment,  cleaning solutions, finishes and procedures to remove surface scratches and other light wear and tear and to assure that you get optimum appearance and longevity from your wood floor.

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  • High Performance Contract Cleaning

  • Green Cleaning

  • Construction Cleaning

  • VCT Strip & Wax Floor Care Services

  • Wood Floor Care Services

  • Exterior Awning Clean and Seal Services

  • Light Duty Maintenance

  • Move In-Out Cleaning

  • Multi-Family (Apartment/Condominium) Communities

  • Class “A," “B” and “C” Facilitates/Properties

  • Religious Facilities

  • Educational Facilities

  • Retail Stores/Businesses

  • Constructions Sites

  • Office Spaces

  • SWaM / DMBE  (711770)

  • EPA CERTIFICATION: RR18506-14-00015

  • NAICS: 561720

Clean Results

A Higher Standard of Clean


At NJSI we believe that a quality assurance plan is key to meet the specified requirements and expectations of our Clients.  It not only gains the confidence of our clients and credibility of our company, but also allows us to improve work efficiency to better our services and overall quality assurance plan.

NJSI ensures our cleaning services do a thorough cleaning job every time by using active management practices, which include experienced supervisors and management staff to conduct regular and random onsite inspections.


  • ONSITE SUPERVISORS: Daily quality control inspections during and after regular scheduled work hours, monitor staff performance, preparation of bi-weekly maintenance check lists and daily interfacing with clients.

  • AREA MANAGERS: Weekly unannounced and scheduled inspections, monitor and manage supplies and materials and weekly interfacing with clients.

  • DIRECTOR OF OPERATIONS: Over site of properties, staffing, monthly unannounced and scheduled quality control inspections and interfacing with clients.

  • PRESIDENT: Meets with Director of Operations on a monthly basis to ensure the effectiveness of our Quality Assurance Plan and implement adjustments accordingly.


NJSI Training

NJSI Makes a difference

“Practice is the hardest part of learning, and training is the essence of transformation.” ― Ann Voskamp

Training is an integral part of our process.  All NJSI employees are required to complete training in the proper use of cleaning chemicals and equipment, cleaning techniques, office space protocol, safety, security and client specific procedures.  Safety training and measures to include updates on all MSDS books are also an important part of our training. Our training process simplifies the cleaning process for our employees making them more efficient while increasing customer satisfaction.


"I would like to take a moment to recommend Nationwide Janitorial Services, Inc. (NJSI). As a Vice President/Asset Manager, I have the need for contractors/vendors throughout my portfolio to get it. NJSI is a company that not only gets it, they go after it. They take full ownership of their task like they are actual employees of my company. For my janitorial needs, I truly appreciate the services provided by NJSI." - G. Pollard, VP, Property Management Division

"Nationwide Janitorial Services, Inc. is a spectacular cleaning service who provides efficient & friendly services. They are part our team and we are extremely happy with the quality services they provide. We recommend them to all property managers." - D. Taylor, Sr. Community Manager

"Working with Janette and NJSI over the years has been a pleasure. The team consistently exceeds my expectations and they are simply delightful. I sincerely appreciate the attention to detail and personal touch offered to our communities." - C. Brook, Property Manager

"No matter what my needs are the team at NJSI always provides star studded, red carpet service." - T. Craig, Property Manager

"For anyone with a need for cleaning services, do not look any further than the Nationwide Janitorial. Reason being that their work does not need to be managed. They have delivered on promised services on a continuous basis for me and I look forward to the day I garner extra responsibility (Property/Assets) because I know I can count on them."  - T. Reed, Property Manager

"I recommend NJSI to any property manager that cares about customer service. They can deliver exactly what you request. NJSI is more than just a vendor, they work with dedication to detail in more ways than just cleaning. They are available for painting, drywall, floor care services and maintenance. Like their motto says, "NJSI, servicing all of your janitorial and maintenance needs."Keep up the good work." - F. Martin, Custodial Training Specialist

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Please complete the form below and a member of our team will contact you within 2 business days.

Head Office

Nationwide Janitorial Services, Inc.

4600 Duke Street, Suite 430

Alexandria, VA 22304

Tel: 703.370.1190

Fax: 703.370.1100


To apply for a job with Nationwide Janitorial Services, Inc., please complete an application.

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