Siding installation final checklist

Walk new siding before you call it done: flashing, courses, trim, fasteners and the yard.

14 itemsIn 4 groups
OK or fixWith a note per line
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Siding installation final checklist

koira.ai/checklists/siding-install-final-checklist
Weather
Water barrier lapped and taped
Flashing at windows, doors and roof lines
Kick-out flashing where roofs meet walls
Siding
Courses straight and level
Fastening per the siding maker
Gaps at trim as the maker requires
Corners and trim straight
Finish
Caulk where the maker calls for it
Penetrations trimmed and sealed
Paint or finish complete if part of the job
Close
Nails and scraps cleaned from the yard
Siding maker's warranty registered if offered
Final invoice sent
Review requested once paid
Signature
Date

What this report covers

Siding is a rain screen; the water barrier and flashing behind it keep the house dry. Kick-out flashing where a roof meets a wall is a detail that often gets missed. Follow the siding maker's installation instructions, which also set the warranty.

How to use it

For each item, mark it OK, Needs attention or Not inspected, and add a short note where it helps. "Not inspected" with a reason protects you better than a blank line. Print it or save it as a PDF and send it to the customer with your photos.

With Koira: Customer portal

Every Koira customer gets one link: the estimate, the photos, the invoice and the payment in one place, so the walkthrough notes and the final bill are where the customer can find them.

Last checked October 9, 2026. This page is general information, not legal or tax advice. Rules change and differ by state and city, so confirm with the agency named before you act.

FAQ

What should be checked after a siding install?

The water barrier, flashing, courses, fastening, gaps, trim, caulk and cleanup.

What is kick-out flashing?

Flashing that turns water away from the wall where a roof edge meets it.

Why follow the maker's instructions?

They set the fastening and gaps, and the warranty depends on them.

What should the owner get?

The warranty, the product and color, and photos.

We know what works. Leave it to Koira.

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Siding Installation Checklist: Final Inspection and Walkthrough | Koira