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On the record · owner not named on its home or about page

Who owns Windows on Washington?

The short answer

Windows on Washington is owned by Mosaic Service Partners (Alpine Investors). It is not an independent local business.

Quick facts
Company
Windows on Washington
Trade
Windows & Doors
Based in
Sterling, VA · All investor-owned companies in Virginia →
Owned by
Mosaic Service Partners (Alpine Investors) · their site
Ownership disclosed?
No: we found no mention of Mosaic Service Partners (Alpine Investors) on the company’s home or about pages when we checked on 2026-10-04.
What Windows on Washington says
“Family-owned and operated small business that has been serving the DC area for nearly two decades.”
Company website, captured by script 2026-10-11 :: https://www.windowsonwashington.net/about-us
What the record shows
Acquired by Mosaic Service Partners (Alpine Investors). See sources below.

About Windows on Washington

Windows on Washington provides Windows & Doors services in Sterling, VA. It operates under its original local name and is owned by Mosaic Service Partners (Alpine Investors).

What this means before you call

The name on the truck is not the owner. In investor-owned home-service groups, pricing books, the sales process and financing offers are commonly set centrally rather than by the local office. What to check before you sign →

Sources

  • Mosaic Service Partners’ own partners page lists Windows on Washington: source (2026-10-04)
  • Window + Door: new platform (Mosaic Service Partners, launched by Alpine Investors) partners with residential window and door providers: source (2026-10-04)
  • Windows on Washington's own website (its words about ownership): source (2026-10-11)
  • Its own website shows this logo: source (2026-10-15)

Other brands under Mosaic Service Partners (Alpine Investors)

The Window ExpertsWeather Tite WindowsClarity Windows and DoorsBee Window
Parity is an editorial publication. Ownership facts are sourced from public filings and company-published material; we make no claim about the quality of any individual technician. Represent Windows on Washington or Mosaic Service Partners (Alpine Investors)? Verify or contest this page · How we check · Corrections policy. Page generated 2026-10-26 from Parity’s records.