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Contractor license records in Gambrills, MD
3 records with Gambrills as their locality of record in L&I's records, as of November 3, 2026. Statuses print as the board records them; a record listed as suspended is not a current credential.
Source: Washington State Department of Labor & Industries (L&I) — records as of November 3, 2026. Records change; the board’s own L&I Verify a Contractor is the current source.
By specialty in Gambrills
GENERAL (1) · LIGHTING MAINTENANCE (1) · JOURNEY LEVEL (1)
- Retro-Tech Systems LLC ACTIVE
- Retro-Tech Systems LLC ACTIVE
- RTS WATER SOLUTIONS LLC ACTIVE