Inspection Requests


Inspection requests for Fire Alarm and Fire Suppression System installations shall be coordinated by calling the Fire Marshal’s office at: 972-775-7662.

A 24-hour notification is requested for all tests and inspections. Inspection appointment is subject to availability of an inspector.

The following information shall be provided when requesting an inspection:

  • Name and address of project
  • Fire protection contractor company name and contact information
  • Type of inspection requested

On-Site Inspection Requirements:

  • Building Permit shall be posted at the front entry of the building.
  • A set of approved plans signed by a representative of the Fire Marshal’s Office shall be on site at the time of inspection.      Shop drawings stamped by your company are not acceptable.
  • Components to be inspected shall not be covered up prior to inspection.
  • Inspectors will not perform inspections if the premises are not maintained in a safe condition for inspectors and vehicle access.

Inspections for Fire Sprinkler Systems:

Underground Piping and Components

  • All underground piping, joints, valves, fire hydrants and thrust blocks shall be installed to NFPA 13 and NFPA 24 standards; City of Midlothian standards, codes and amendments; and inspected prior to hydrostatic testing. All joints shall be fully exposed and piping may be center loaded.
  • All underground piping and system components shall be hydrostatically tested at 200psi for a minimum of two (2) hours. Flushing of piping, riser and remote FDC (if applicable) shall be witnessed by the Fire Marshal prior to installing the riser.
  • Piping system shall comply with approved plans (location, size and components). Fire mains shall have a minimum of 42" of soil cover to top of pipe. Any components subject to corrosion shall be corrosion resistant and/or wrapped in polyethylene material.
  • Fire Sprinkler backflow devices shall have a bypass and test header.

Overhead Piping and Components

  • A visual inspection of rough piping and components shall be completed before piping is covered.
  • Hydrostatic pressure test required for new installations and for tenant finish-outs with twenty (20) or more heads added or relocated. Hydrostatic test shall be at 200psi for two (2) hours for all systems. All joints shall be fully exposed during inspection.

Final Inspection

  • This inspection shall be conducted after all the drywall and millwork is completed. This inspection is to verify system coverage is still adequate after the initial hydrostatic pressure test. This will enable the Fire Marshal’s Office and the fire protection contractor to identify any deficiencies and make any necessary changes. Installation tag and current State of Texas inspection tag shall be in place after acceptance by the Fire Marshal.  Knox FDC plugs/caps, FDC sign (red sign with 6" white letters) and fire riser room identification (4" letters) shall be installed prior to Certificate of Occupancy inspection.

Inspections for Fire Alarm Systems:

Alarm System and Devices

  • All fire alarm systems shall be designed and installed to meet NFPA 72 standards and City of Midlothian adopted codes and amendments.
  • The complete system shall be pre-tested prior scheduling the acceptance test.
  • All initiating, notification and signaling devices shall be inspected and tested.
  • Water-flow switches shall activate a fire alarm within 40-50 seconds, and shall be non-silencable. An audible/visual notification device shall be located outside the fire riser room and be as close as possible to the FDC.
  • All buildings and occupied spaces shall have one or more audible/visual notification devices and a remote annunciator panel in a normally attended location. In buildings and tenant spaces 6,000sf or larger, all HVAC units and fans shall shut down (global shut down) upon fire alarm activation.
  • All alarm systems, new or replacement, shall transmit alarm, supervisory and trouble signals descriptively to the approved central station, remote supervisory station or proprietary supervising station as defined in NFPA 72, with the correct device designation and location of addressable device identification. Alarms shall not be permitted to be transmitted as a General Alarm or Zone condition.
  • The fire alarm system shall comply with approved plans.

Final Inspection

This inspection shall be conducted prior to the Certificate of Occupancy inspection. This will enable the Fire Marshal and the fire protection contractor to identify any deficiencies and make any necessary changes. Installation tag and current State of Texas inspection tag shall be in place after acceptance by the Fire Marshal.

One or more Knox Box key boxes containing current building keys shall be in place when fire protection systems are active and approved by the Fire Marshal.

Contact Information:

Fire Marshal
Midlothian Fire Department
100 W. Avenue F Midlothian, Texas 76065