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ProFix Directory

Fire Protection Contractors in Ontario, CA

7 verified fire protection contractors in Ontario, CA. Listings are filtered from the California gold-tier pro shard and ordered by trust signals, not lead bidding.

7 verified fire-protectionSan Bernardino County4 active board overlays4 license-status overlays

Top 7 fire protection contractors in Ontario, CA

  1. #1
    State-board overlay: CLEAR via CSLB as of 2026-06-15. This profile has an active public-board status overlay.
  2. #2
    State-board overlay: CLEAR via CSLB as of 2026-06-15. This profile has an active public-board status overlay.
  3. #3
    State-board overlay: CLEAR via CSLB as of 2026-06-15. This profile has an active public-board status overlay.
  4. #4
  5. #5
    State-board overlay: CLEAR via CSLB as of 2026-06-15. This profile has an active public-board status overlay.
  6. #6
  7. #7

Compare local fire protection contractors

Fire sprinkler, alarm, and suppression system installation and inspection. This page includes only pros whose profile city matches Ontario and whose trade list includes fire protection contractor.

Ranked by ProFix data-confidence: complete contact details, public-record coverage, board-backed license overlays where available, and tier quality; never by payment. Showing the top 7 of 7 matching profiles.

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