Egress Windows: Permits, Inspections, and Code Compliance

Egress window installation typically requires permits and inspections. According to the Idaho Division of Building Safety, this process ensures life-safety requirements are met correctly.

When Permits Are Required

According to ICC and Idaho building codes, permits are typically required when:

• Installing a new egress window (especially basement)
• Enlarging an existing window opening
• Finishing a basement with bedrooms
• Converting any room to sleeping use

Like-for-like window replacement in existing openings often doesn't require permits, but egress compliance should still be verified.

The Permit Process

According to the Idaho Division of Building Safety, typical process:

1. Application

• Submit application to local building department
• Include window specifications showing egress dimensions
• For basement installations, include window well details

2. Plan Review

• Building official reviews for code compliance
• May request changes if egress requirements not met
• Approval required before work begins

3. Inspections

According to ICC practice, common inspection points:

| Inspection | What's Checked |
|------------|----------------|
| Rough opening | Size and location correct |
| Window installation | Proper installation, flashing, sealing |
| Window well | Size, depth, drainage, ladder if required |
| Final | Overall compliance, operation |

4. Final Approval

• Inspector verifies all requirements met
• Certificate of completion or occupancy issued
• Record maintained for future reference

What Inspectors Look For

According to Idaho Division of Building Safety:

Clear opening verification:

• Actual clear opening dimensions (not frame size)
• Operation tested—window must open fully and stay open
• No obstructions (screens must be removable without tools)

Sill height:

• Measured from finished floor to bottom of clear opening
• Must be 44 inches or less

Window wells (basement):

• Minimum dimensions met
• Drainage adequate
• Ladder or steps if required (depth > 44")
• Cover is openable from inside without tools

Common Compliance Issues

According to building inspectors, frequent problems include:

1. Window doesn't open fully: Hardware or stops limiting opening
2. Sill too high: Floor was raised or window installed too high
3. Clear opening too small: Ordered wrong size or style
4. Window well too small: Doesn't provide required floor area
5. Missing ladder: Deep well without required climbing device

The Bottom Line

Permit and inspection requirements exist to ensure egress windows actually work in emergencies. According to Idaho Division of Building Safety, working with knowledgeable contractors and understanding requirements beforehand prevents delays and failures.

*For complete egress information, see: [Egress Window Requirements](/guides/egress-window-requirements)*