The Final Walkthrough: Your New-Construction Punch List Before Closing

You've waited twelve to eighteen months for this day. The framing you watched go up last fall is now a finished house, the builder is ready to hand over the keys, and everyone in the room wants you to sign. Here's the thing — the final walkthrough is not a victory lap. It's the single best point of leverage you'll have to get things fixed on the builder's dime instead of yours.

I walk new-construction buyers through this all the time across Johnson County, and the pattern is consistent: buyers who show up with a real punch list get real repairs. Buyers who show up excited and empty-handed get a handshake and a fridge magnet with the warranty line's phone number.

So let me give you the exact list I use.

Why the walkthrough matters more on a new build

With a resale home, you had an inspection period weeks ago and negotiated repairs already. On new construction, the walkthrough often is your inspection moment — the house may have been receiving finish work right up until this week. Paint crews, flooring installers, and countertop fabricators all worked on top of each other to hit the completion date, and small damage from that final sprint is completely normal. Normal to find, that is. Not normal to accept silently.

What most people don't realize is that once you close, the burden quietly shifts. Before closing, an unfinished item is the builder's obligation to deliver the home you contracted for. After closing, that same item becomes a warranty claim — slower, lower priority, and sometimes disputed. Same scratch on the same window. Very different conversation.

The punch-list checklist

Give yourself at least 90 minutes and bring painter's tape to mark every item. Here's what to check, room by room and system by system.

Doors, windows, and trim. Open and close every single door and window — every one. Look for doors that rub, latches that don't catch, and windows with scratched glass or torn screens. Scan trim and baseboards at an angle in natural light; that's how you catch nail pops, caulk gaps, and paint touch-ups that were done in a hurry.

Floors and surfaces. Walk every room slowly and look down. Hardwood scratches, grout haze on tile, chips in quartz or granite edges — especially near the sink cutouts — and carpet seams that show. Appliance installers and countertop crews are the usual suspects, and this is exactly the damage that gets disputed after closing because no one can prove when it happened.

Water, everywhere. Run every faucet, fill and drain every tub, flush every toilet, and run the dishwasher through a cycle if time allows. Look under every sink with the water running — a slow supply-line drip found today is a ten-minute fix; found in October, it's a stained cabinet floor. Check the water heater connections and confirm the pressure feels right at the highest fixture in the house.

Electrical and mechanical. Flip every switch, test every outlet (a $10 outlet tester is worth carrying), and confirm GFCI outlets trip and reset in kitchens, baths, and the garage. Run the HVAC in both heating and cooling long enough to feel it actually condition the air — July in Kansas will tell you very quickly whether the AC was charged properly. Ask where the furnace filter is and confirm the thermostat is registered to you, not the builder's account.

Exterior and grading. Walk the full perimeter. Look for siding gaps, brick mortar smears, gutter downspouts that dump against the foundation, and grading that slopes toward the house instead of away. In our clay-heavy Johnson County soil, drainage sins show up as foundation and basement problems within a couple of seasons — this is the highest-stakes item on the list and the one buyers skip most often.

Paperwork. Confirm in writing: the completed items from any earlier walkthrough, warranty registration for each appliance, the certificate of occupancy, and — critically — a written punch list from today with a completion deadline, signed by the builder's rep. Verbal promises evaporate after closing. Paper doesn't.

What happens to the list

A fair builder will complete most punch-list items either before closing or within 30 days after, and the good ones in our market do — this is one of the things I weigh when I talk about which builder upgrades actually pay off at resale and which builders stand behind their finish work. If the list is long or includes anything structural, you have options: delay closing, hold funds in escrow, or get a signed completion agreement with real dates. Which lever to pull depends on your contract, and that's a conversation to have with your agent before walkthrough day, not during it.

And if you're still early in the process — comparing builders, communities, and contracts — start with my guide to custom home builders in Johnson County. The builder you choose determines how much of this checklist you'll actually need.

Get the printable checklist

I've turned this into a one-page printable punch list — the same one I bring to walkthroughs with my own buyers. Reach out here and mention "walkthrough checklist," and I'll send it over along with a quick read on anything specific to your build.

And if your closing is coming up and you'd like a second set of eyes at the walkthrough itself, that's genuinely one of my favorite parts of this job. Bring me along — the builder's rep will know someone in the room has done this before.

Tara Williams is a luxury real estate agent serving Johnson County, Kansas, including Overland Park, Leawood, and the Blue Valley corridor.