GMS offers commercial and residential services.  We work closely with our clients to develop customized service plans that meet or exceed expectations.  Our services include, but are not limited to:

  • Blinds cleaning
  • Carpet care
  • Day porters/matrons
  • Food service/kitchen cleaning and sanitation
  • General cleaning
  • Green cleaning
  • Hard floor care (concrete, hardwood, quarry, tile, etc.)
  • High cleaning/dusting
  • Restroom cleaning and sanitation
  • Window cleaning



We integrate quality management into every project.  Our quality assurance program consists of three core components:

  • Staff training;
  • Quality measurement; and
  • Performance evaluation.



Our quality assurance program begins with our employees.  We recruit qualified talent that in addition to knowledge and experience, possess soft skills such as confidence and integrity.  Employee training reinforces GMS core values and includes clear communication of expectations.


Quality Measurement

Using a tiered approach to quality measurement, we incorporate service inspection at various levels.  Our conscientious employees check their work to ensure it meets expectations.  Our on-site supervisors conduct daily inspections to assess service levels and identify potential problem areas.  Our QA inspectors conduct weekly inspections to assess achievements and set objectives for the upcoming week.


Performance evaluation

Evaluating performance outcomes is vital to our quality assurance program.  We evaluate the data collected through quality measurement to identify performance gaps.  We also welcome client feedback, and distribute customer satisfaction surveys for that purpose.  In addition, our annual review program assists in refining employee skills through goal setting and achievement.

Global Maintenance Services, Inc.


GMS is a janitorial services company serving the Washington, DC area.  Licensed, bonded, and insured, we are a minority-owned Certified Business Enterprise (CBE).   Our mission is to provide high-quality customized cleaning services at affordable rates.  We are driven by our core values, central to which is responsibility - responsibility to our clients, our employees, and our planet.

Green is the New Color of Clean


GMS is Green Clean Institute certified.  This certification attests to our commitment to providing healthy environments for our clients and staff while reducing our environmental footprint.  We use quality green cleaning products, and adhere to industry standards for green cleaning methods and best practices.

Connect with us for assistance with your next cleaning project.

Free Estimates

Customized Service plans

Responsible service at reasonable cost.

Connect with us.


1341 H Street, NE
           Washington, DC 20019

(202) 735-5264

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