Do I need a permit to replace windows in Unincorporated Cache County?

Only if you are changing the size of the opening or adding new openings. Like-for-like replacements in the same rough opening typically do not require a permit in Unincorporated Cache County. Adding egress windows always requires a permit.

What energy ratings do replacement windows need in Unincorporated Cache County?

Replacement windows in Unincorporated Cache County must meet Utah energy code requirements. For the Utah climate zone, windows typically need a U-factor of 0.30 or lower and an SHGC appropriate to the orientation.

Window & Door Replacement Permit in Unincorporated Cache County, Utah

Required for window and door replacements that involve structural changes, resizing openings, or egress modifications in Unincorporated Cache County.

Verified 2026-06-27 · Source

When you need this permit

Enlarging or reducing a window or door opening
Replacing a window or door with a different size (structural header change)
Adding a new window or door opening
Converting a window to a door or vice versa
Egress window installation for bedrooms

Required documents

Req
Scope of Work
Description of existing and proposed openings, sizes, and locations
Req
Structural Details
Header sizing and framing details for new or enlarged openings
Req
Energy Compliance
Window U-factor and SHGC ratings meeting Utah energy code

Fee schedule

Fee type	Amount	Notes
Window/Door Permit	$130	—
Plan Review	15% of base fee	—

Review timeline

~3–10 business days

Typical estimate — confirm current times with the Unincorporated Cache County building department

Inspection process

1
Framing
New or modified headers, jack studs, and cripples verified
2
Final
Windows/doors installed, flashing, weatherproofing, and hardware complete

Tips

Like-for-like window replacements (same size, same opening) in Unincorporated Cache County typically do not require a permit.
If you are changing the size of any opening, a structural header calculation is required.
All replacement windows in Unincorporated Cache County must meet Utah energy code — verify U-factor and SHGC ratings.
Egress windows for bedrooms must have a minimum 5.7 sq ft net clear opening.

Frequently asked questions

Do I need a permit to replace windows in Unincorporated Cache County?: Only if you are changing the size of the opening or adding new openings. Like-for-like replacements in the same rough opening typically do not require a permit in Unincorporated Cache County. Adding egress windows always requires a permit.
What energy ratings do replacement windows need in Unincorporated Cache County?: Replacement windows in Unincorporated Cache County must meet Utah energy code requirements. For the Utah climate zone, windows typically need a U-factor of 0.30 or lower and an SHGC appropriate to the orientation.

Sources & verification

Key facts verified against official sources. Last reviewed 2026-06-27.

Fees, timelines, and adopted codes are researched from each jurisdiction's published records — see how we verify. Requirements change and vary by project, so always confirm the current details with the Unincorporated Cache County building department before you submit. PermitBase is an independent reference and is not affiliated with any government agency.

Related guides

Window Replacement

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