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PermitRoadmap

Do I need a permit for window or exterior door replacement in Katy?

Permit likely required

Most likely yes. Window or exterior door replacement usually requires a permit in Texas. Confirm the specifics with Katy.

Straight like-for-like window and door replacements are exempt in some Texas cities (Austin, for example, exempts garage door replacements), but enlarging an opening, changing egress, or altering structure typically triggers a permit and a framing inspection. Requirements vary by city and are set locally under Texas Local Government Code Ch. 214, not by the state. Confirm the exact rules with your local building department. Katy Zoning Ordinance Sec. 24.2 bars anyone from altering, improving or repairing a building without first getting a building permit. The city publishes no window or door exemption, so ask the Permit Office at 281-391-4830 before ordering units. The city's building permit application prices a remodel of an existing single-family structure at $15 plus a $7.50 plan check fee and the $30 application fee. Katy adopted the 2021 International Energy Conservation Code (Code Sec. 3.02.451), which sets efficiency requirements for replacement windows and doors.

Get the answer for your exact project

Answer a few questions to see the permits, documents and inspections that may apply in Katy.

Check my project
Get the checklist for your window or exterior door replacement in Katy. A free check first, then a free printable Permit Prep Pack.

Documents you may need

  • Permit applicationRequired
  • Window and door schedule or product specificationsSometimes required
  • Elevation or plan showing altered openingsSometimes required
  • City of Katy Application for Building Permit (through the Civic Access Site or by email to katypermits@cityofkaty.com), marked Remodel or RepairLikely required

Possible inspections

  • Framing or rough inspection for altered openings
  • Final inspection
  • Framing inspection for the altered opening

Frequently asked questions

Do I need a permit for window or exterior door replacement in Katy?
Most likely yes. Window or exterior door replacement usually requires a permit in Texas. Confirm the specifics with Katy. The documents and inspections sections on this page list what the building department typically asks for.
Who issues the permit in Katy?
The local building department for Katy handles permitting. This page lists its contact details and online portal. Your mailing city is not always the permitting authority, so confirm the jurisdiction before you apply.
How do I find out the exact requirements for my project?
Run the free PermitRoadmap check for your specific project and answers. It returns the likely permits, documents, inspections, and next steps, each linked to its official source.

PermitRoadmap is an independent informational service and is not affiliated with any city, county, state agency, or permitting authority. Results are informational and do not replace confirming requirements with the local permitting authority.