Our Beginnings

 

All Seasons Corporation was founded in 1981 by H. Ray Slye. What started as a commitment to delivering honest, high-quality commercial cleaning services has grown into one of the DMV region's most trusted facilities service companies — now maintaining 76 active locations and employing 143 field professionals across Washington DC, Northern Virginia, and Maryland.

For over four decades, All Seasons has operated on a simple philosophy: do the work right, communicate clearly, and treat every client like a long-term partner. That commitment has earned us relationships that span years and buildings that keep coming back.

We are proud to be a family-owned business. Ray and Judi Slye remain actively involved in the company today, and their values — accountability, responsiveness, and pride in the work — define everything we do.

Our Service Area

All Seasons Corporation provides services throughout the greater Washington DC metropolitan area, including:

  •   Washington DC (all neighborhoods and property types)

  •   Northern Virginia (Arlington, Alexandria, Fairfax, Loudoun, Prince William counties)

  •   Maryland (Montgomery, Prince George's, and surrounding counties)

We serve Class A and B commercial office buildings, multi-tenant properties, trade associations, government contractors, mixed-use developments, and residential community associations requiring full-time staffing.

All Seasons Corporation — Locations
The logo of SSA with the tagline 'Advancing Clean. Driving Innovation.'
Logo featuring a skyline of tall office and apartment buildings with the text 'A.O.B.A. Apartment and Office Building Association of Metropolitan Washington'.
Black and white logo with the text "BSCAI" and a stylized building graphic
Black background with white text reading "BOMA International."
Logo of the Global Biorsk Advisory Council (GBAC) featuring the organization's name and biohazard symbol.
A close-up photo of a man and woman smiling, sitting closely together in a dimly lit setting with wooden blinds in the background.

What makes a family-owned cleaning company different?

When you hire All Seasons, you are not dealing with a national franchise or a company where your account is one of thousands managed by a regional call center. You are dealing directly with the people who built this company and whose names are on the door.

That means faster responses. Accountability that goes all the way to the top. And a genuine interest in your building's success — because our reputation depends on it.

We have been doing this since 1981. We plan to keep doing it the same way.

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