Our Services & Checklists
Thorough inspection, testing, and reporting for all water-based fire sprinkler systems.
System Inspections
Inter West, LLC performs inspections in accordance with NFPA 25, applicable codes, and Authority Having Jurisdiction (AHJ) requirements. Select your system type below to see the full inspection checklist.
- Control valves, position & supervision
- Water supply & pressures
- Sprinklers – condition, orientation, obstructions, temperature rating
- Piping, fittings, supports & bracing
- Gauges – condition, readability, pressures
- Waterflow & alarm equipment
- Fire department connection
- Spare sprinklers & cabinet
- Signs & system identification
- Corrosion, leakage & physical damage
- Other conditions affecting performance
- Dry pipe valve & trim
- Air/Nitrogen system & pressures
- Low-air supervisory devices
- Auxiliary drains & drum drips
- Piping, supports & bracing
- Sprinklers – condition & obstructions
- Gauges – air, water & priming water
- Waterflow alarm & supervisors
- Fire department connection
- Spare sprinklers & cabinet
- Corrosion, leakage & physical damage
- Other conditions affecting performance
- Antifreeze solution concentration
- Freeze point testing
- Sampling at required locations
- Antifreeze loop components
- Wet system interface components
- Piping, supports & bracing
- Sprinklers – condition & obstructions
- Gauges & solution reservoirs
- Isolation, check & drain valves
- Corrosion, leakage & physical damage
- Signs, identification & documentation
- Other conditions affecting performance
Periodic Testing Requirements
3-Year Full-Flow / Full-Trip Test
Dry Pipe & Preaction Systems — When Required
A full-flow trip test verifies the system operates as designed and identifies changes in performance over time. Required at 3-year intervals per NFPA 25 and AHJ requirements.
- Record system air/nitrogen pressure
- Record water supply pressure
- Open inspector's test connection
- Observe valve operation
- Record trip pressure & trip time
- Observe water delivery
- Record water delivery time
- Compare results to previous data
- Inspect drains & system
- Reset system & restore to service
- Verify normal operating condition
5-Year Internal Inspection
Components — When Required
Internal inspection goes beyond the exterior to ensure critical components are clean and operating properly. Required at 5-year intervals per NFPA 25 and AHJ requirements.
- Alarm valves
- Check valves
- Dry pipe valve components
- Preaction valve components
- Deluge valve components
- Backflow prevention assemblies
- Strainers, filters & orifices
- Pressure regulating equipment
- Corrosion, deposits, obstructions
- Internal parts & mechanisms
- Other applicable components
Authority Having Jurisdiction
AHJ Reporting
We handle all required reporting to your local Authority Having Jurisdiction — keeping your system compliant and your documentation current.
- Prepare final inspection and/or testing reports
- Upload or submit reports through AHJ portal when required
- Include all test results, deficiencies & corrective action documentation
- Record submission confirmations, dates & correspondence
- Provide reports to property owner/manager
- Maintain records in accordance with code requirements
Professional Reports
Clear, complete & easy to understand
Code Compliant
Performed in accordance with NFPA 25 & AHJ
Deficiency Focused
Identify issues before they become problems
Protecting What Matters
Your building, your people, your peace of mind
Ready to Schedule an Inspection?
Contact Frank Willis today — we'll get your system inspected, tested, and fully documented.