• New Executive Office Building
  • Old Executive Office Building
  • Forrestal Building
  • Federal Building No. 8
  • Federal Building No. 9
  • The Pentagon 


  • Boeing Computer Services
  • Navy Federal Credit Union
  • Unisys Corporation
  • BDM International
  • Hecht's Corporate Offices
  • Verizon / Formerly Bell Atlantic
  • Washington Gas
  • American College of Radiology
  • American Red Cross
  • Fairfax Water Authority




  • VA State Fraternal Order of Police
  • Fairfax County Fraternal Order of Police
  • Special Olympcs
  • Atlanta Olympics 1996
  • Fairfax County Fire Department
    Fairfax County Public Schools

"The new cleaning contractor come in and cleaned our bathrooms better than it has been cleaned in 10 years!"

Linda H.

Juvenile and Domestic Relations District Court

"They have met every request that I have asked of them and I am well pleased...overall they are doing first-rate work; I hope it continues for a long time to come."

Michael E.

Assisant Manager, Fairfax County Health Dept

  • Prentiss Properties
  • McShea
  • Century 21
  • Trammel Crow
  • Grubb & Ellis
  • Gates, Hudson and Association
  • HBW Group 

Hospitals and health care

What our Clients are saying about us

Federal Government / GSA Clients 

  • Sam & Harry's / 2 Locations
  • The Caucus Room
  • Sur la Table / 3 Locations
  • The Palm Restaurant Tysons
  • Ames Department Stores
  • David Yurman Tysons
  • Liljenquist & Beckstead Tysons

Real Estate Management 

Retail and Restaurants

Local Government

  • Arlington County
  • Fairfax County
  • Loundon County 
  • Montgomery County
  • Prince William County
  • Upper Occoquan Service Authority (UOSA)

  • Bovis
  • Meridian Construction
  • Centex Simpson

"I have found William and his crew to be extremely dependable...his company provides by far the best and  most professional service I have seen. "

Gary P.

Assisant Manager, Fairfax County

"Most impressively, Mr. Nguyen makes personal site visits to the branch... he actively seeks my feedback on ways service can be improved to the building."

Barbara S.

Assisant Manager, Kings Park Library

  • BSCAI/ Building Service Contractors Association International
  • Minority Supplier Development Council of MD & DC
  • Local Disadvantage Business Entity / Metropolitan Washington Fairfax County 
  • International Facility Management Association
  • Fairfax Chamber of Commerce  

Servicing Maryland, Virginia, and the District since 1979.

  • Walter Reed Reed US Army Hospital 
  • U.S Naval Hospital, Bethesda, MD
  • National Institute of Health
  • Red Cross Holland Laboratories
  • INOVA Clinic - Merrifield,VA
  • Neighborhood Health Clinic