Commercial Mechanical Work Permit

A Mechanical Permit is required prior to conducting any mechanical work such as heating, duct-work, or cooling. All mechanical work requires an approved permit by the Building Inspections Division.

Apply Online

Step 1.Review Requirements

The following is required prior to issuance of a Mechanical Work Permit:

  • Address and use of property information
  • Owner and Contractor information
  • Type of Installation (New, Remodel, Repair, Addition)
  • Category of mechanical permit (air, wall heater, central heater, etc.)

Step 2.Apply Online

You can apply online for a permit through the City of Grand Prairie's Customer Self-Service portal . First time users will need a valid email address to set up an account. It takes about 5 minutes to create a new account.

Apply Online

What next?

After completing the online application, permits are processed in approximately 5-10 business days. Depending on updates needed from the applicant, as this can result in longer approval times.

Phone / In Person

You are welcome to call or visit in person for help submitting your online application.

Phone: 972-237-8230


City Hall - Building Inspections Division
300 W. Main Street
Grand Prairie, Texas 75050

Business Hours:
8:00 a.m.- 5:00 p.m. Monday - Friday