A commercial fire sprinkler system failing inspection is more common than most property owners expect, and it’s rarely because the system was installed wrong. Here are the most frequent culprits.
- Corroded or leaking pipes. Internal or external corrosion can restrict water flow or cause leaks, especially in older systems overdue for an internal obstruction investigation.
- Obstructed sprinkler heads. Stored inventory, signage, or renovations that place shelving or fixtures too close to sprinkler heads block their spray pattern and are one of the most common findings on a walkthrough.
- Painted or corroded sprinkler heads. A painted head may not activate at the correct temperature, and painted heads are typically required to be replaced, not cleaned.
- Missing or damaged escutcheons. The decorative plates around ceiling-mounted heads matter more than they look — missing ones can be flagged as a deficiency.
- Low or fluctuating water pressure. Sometimes a municipal water supply issue, sometimes a sign of a closed or partially closed valve upstream that never got reopened after prior work.
- Missing or illegible signage. Control valve identification signs and hydraulic design information signs are required and commonly overlooked after other work is done nearby.
Most of these are inexpensive to fix once identified, which is exactly why regular inspection matters more than most property owners realize. See our Inspection, Testing, and Maintenance & Repair guides for more.