There are three walkthroughs that matter on a new construction home: pre-drywall (around weeks 8 to 12, before insulation closes the walls), pre-close (within a week of closing), and 11-month (just before the year-one warranty expires). Pre-close is the most critical — it sets the punch list that determines what gets fixed before move-in and locks in coverage for cosmetic items that often have a 30 to 60 day window. Bring blue tape, a flashlight, a phone charger to test outlets, printed plans and selections, and someone other than the builder's salesperson to take notes. For homes above $500,000, hire an independent inspector.
The walkthrough is the most underprepared moment in the entire new construction process. Buyers spend months agonizing over floor plans and finish selections, then show up to the final walkthrough with no list, no tape, and no plan — and they let the builder set the pace through the home. Two hours later they sign closing documents on a punch list they barely understood. Most of what goes wrong in new construction is preventable. The walkthrough is where prevention happens.
Here is how to walk a new build like someone who knows what to look for, including the pre-drywall walkthrough most buyers skip but should not.
The Three Walkthroughs That Matter
Pre-Drywall
Before insulation and drywall close up the framing. The only chance to see the bones of the house — framing, plumbing rough-in, electrical rough-in, HVAC ductwork.
Pre-Close
The final inspection before the keys change hands. Punch list creation, blue tape on every issue, documented and signed before signing closing docs.
11-Month
Just before the year-one workmanship warranty expires. Settling cracks, doors that have shifted, anything that emerged during the first year of normal living.
Not all builders proactively offer all three. Production builders typically include the pre-close and offer the 11-month on request. Smaller semi-custom and custom builders are often willing to do the pre-drywall too, but you may need to request it specifically. Ask, in writing, which walkthroughs the builder includes in their process — and confirm timing.
What to Bring
Walkthrough Kit
- Blue painter's tape — for marking every issue you find. Visible, removable, accepted as the industry-standard signal.
- Sticky notes and clear tape — for adding written context to taped items ("scratch," "drip at faucet," "won't latch").
- Smartphone with full battery — for photographing every issue with the blue tape visible in the frame.
- Small flashlight — for looking into attics, under cabinets, behind appliances, into HVAC closets.
- Phone charger or outlet tester — every outlet should be tested. A simple plug-in outlet tester from a hardware store is $8 and tells you wiring, polarity, and GFCI function in one second.
- A marble or small ball — for checking floor levelness. Roll it in living areas, kitchens, and any rooms with hard surface floors.
- Printed floor plan, contract spec sheet, and design studio selections — for verifying that what was built matches what you ordered.
- Printed checklist — the one below, or your own.
- A second set of eyes — your agent, a friend, or an independent inspector. The builder's salesperson is not on your side at this meeting.
Block 2 to 4 hours. Eat first. Wear comfortable clothes. Bring water. Do not try to do a walkthrough in 45 minutes during a builder's lunch break — that is the meeting the builder wants you to have, not the meeting you should be having.
Walkthrough One: Pre-Drywall (Weeks 8 to 12)
This is the walkthrough most production-builder buyers don't get and don't request — and it is the most valuable one for catching the problems that matter most. Once the drywall goes up, the bones of the house are hidden. Verifying that the framing is plumb, the plumbing rough-in is correct, the wiring is secured properly, and the HVAC ducts are sized and sealed correctly is impossible once the walls close.
For homes over $500,000, this is also where a qualified independent inspector pays for themselves multiple times over.
Pre-Drywall Checklist
Framing
- Studs visually straight and plumb — no crowned or twisted lumber in finish walls
- Headers over doors and windows present and correctly sized
- Blocking present where towel bars, cabinets, TVs will be mounted
- No major splits, cracks, or knots in load-bearing members
- Subfloor secured — no squeaks when stepped on, no gaps at panel edges
Plumbing Rough-In
- P-traps under every drain location
- Water supply lines secured to framing, not loose
- Shut-off valve locations match what was specified
- Vent pipes properly routed through roof
- No PVC or copper resting on or rubbing against framing
Electrical Rough-In
- Outlets in the locations specified on the plan, at proper code spacing
- Wires secured to studs with staples or clips — not hanging loose
- Wire nuts protected, junctions accessible
- Service panel labeled (will be finalized later) and located where specified
- Switch locations at every doorway, consistent height
- Recessed lighting cans in correct positions per ceiling plan
HVAC
- Ductwork sized appropriately — visible supply trunks should not be obviously undersized for run length
- Supply registers in the locations specified
- Return air pathways present in larger rooms
- Duct seams sealed with mastic or UL-181 tape (not standard duct tape)
- HVAC closet sized to allow filter access and service
If you don't have the construction background to evaluate any of the above, that is exactly why an independent inspector matters. A pre-drywall inspection in the Treasure Valley typically runs $300 to $500 — money very well spent on a build over $500,000.
Walkthrough Two: Pre-Close (Days Before Closing)
This is the walkthrough every buyer gets and the one that defines the rest of your relationship with the builder. The goal is to identify and document every issue — large and small — that you want addressed before or after closing. The blue tape is your communication tool with the builder's project manager. Tape everything. Photograph everything. Get the punch list in writing, signed by both parties, before you sign closing documents.
Schedule your pre-close walkthrough at least 5 to 7 days before closing — not the morning of. Five days gives the builder time to address quick fixes before closing and to commit in writing to what will be addressed after. Same-day walkthroughs heavily favor the builder, because the buyer has lost all leverage by the time they find an issue.
Pre-Close Checklist
Exterior
- Roof: shingles flat and aligned, no visible damage, flashing properly installed at chimney and valleys
- Gutters: secured, properly pitched toward downspouts, downspouts directed away from foundation
- Siding: no gaps, no missing pieces, paint coverage complete and consistent
- Windows: caulked at exterior trim, screens installed (or accounted for)
- Foundation: visible parging or paint coverage complete, no major cracks
- Grading: soil slopes away from foundation on all sides, minimum 6 inches in first 10 feet
- Sidewalks and driveway: no cracks, no spalling, expansion joints properly placed
- Landscaping: matches contract (sod, irrigation, trees specified)
- Outdoor faucets functional, sprinkler system tested if included
Interior Finishes
- Drywall: no visible seams, no rough texture, no nail pops, no cracks
- Paint: full coverage, no roller marks, no flashing under raking light, color matches selections
- Trim: caulked at all corners, mitered cleanly, no gaps at floor or ceiling
- Doors: latch on first try, no swing on their own, hinges quiet, hardware tight
- Windows: operate smoothly, lock properly, seal closed without gaps
- Floors: no scratches, transitions level and tight, hardwood acclimated (no gaps between boards)
- Cabinets: doors aligned, drawers operate smoothly, hardware tight, soft-close functioning if specified
- Countertops: no chips, no scratches, properly caulked at backsplash and sink
- Tile work: no cracked tiles, grout consistent, no efflorescence (white powder) on grout
- Caulking: tubs, showers, sinks, toilets — all sealed, no gaps
Plumbing
- Every faucet runs, hot and cold, full pressure
- Every drain drains without backup or slow flow
- Every toilet flushes, refills, no rocking on the floor
- No leaks under any sink — open every cabinet
- Tub and shower drains hold water as designed
- Water heater secured, properly vented, expansion tank installed if required
- Shut-off valves in working order on every fixture
Electrical
- Every outlet works — use the outlet tester at every receptacle
- GFCI outlets in bathrooms, kitchen, garage, exterior, and within 6 feet of any water source
- Every switch operates the correct fixture
- Every light fixture installed, no missing bulbs, no exposed wiring
- Service panel labeled clearly, breakers functional
- Doorbell works
- Smoke and CO detectors installed in every required location, tested
HVAC
- Heat works in every room — feel the air at every supply register
- AC works in every room (test at every supply register)
- Thermostat responds, screen functional, programmable features verified
- Air filter installed and accessible for future replacement
- Bathroom exhaust fans operate, vented to exterior (not into attic)
- Kitchen range hood operates and vents to specified location
Appliances
- Dishwasher runs a cycle (verify drainage and water supply)
- Disposal works, no leaks
- Range/cooktop: every burner ignites, oven heats to set temperature
- Microwave operates, vent fan operates
- Refrigerator cooling, water and ice if applicable
- Washer and dryer hookups present and tested (if appliances included)
- Manufacturer warranties and user manuals collected and bundled
Garage
- Garage door operates smoothly, both openers work
- Auto-reverse safety functions (test by interrupting the beam and by physical contact)
- Weatherstripping intact on all sides of door
- Door from garage to house is fire-rated, self-closing, properly sealed
- GFCI outlet present
- Floor sealed (if specified)
Walkthrough Three: 11-Month (Just Before Warranty Expires)
The most overlooked walkthrough — and the one that resolves more issues than any other. The year-one workmanship warranty covers everything that has emerged during normal living: settling cracks, doors that have shifted as the house settled, nail pops, minor trim gaps from wood shrinkage, any issue from the original punch list that wasn't fully resolved.
The trap: if you don't request the 11-month walkthrough, most builders won't schedule it for you. The workmanship warranty expires silently in month 12, and any issue that emerges in month 13 becomes your problem.
11-Month Checklist
- Settling cracks: walk every wall, every ceiling. Mark cracks larger than 1/8 inch with blue tape.
- Drywall seams or nail pops: any seam that has shown through paint, any visible nail pop.
- Door operation: every interior door — does it still latch on the first try? Has any door begun to drag, swing, or stick?
- Window operation: open and close every window. Check for new gaps at frames or trim.
- Floor squeaks or movement: walk every room. Note any new squeaks that have developed.
- Trim and caulk: any new gaps where wood has shrunk during the first year's heating and cooling cycle.
- Plumbing: any slow drains, any new leaks, any toilets that have started to rock.
- HVAC after one full season: any rooms that don't heat or cool as expected? Any unusual noises?
- Exterior: grading still pulling water away from foundation, no settling around the house perimeter, no gaps at door sweeps or thresholds.
- Original punch list items: bring the pre-close punch list. Verify every item was actually completed.
Submit the list in writing to your builder's warranty contact at least two weeks before your warranty expiration date. Send it by email so you have a timestamped record. Take photos before and after each repair.
"The builder will not chase you to schedule the 11-month walkthrough. The buyers who get the most out of their warranty are the ones who put it on their own calendar."
The Documentation Strategy
The punch list is a legal document, even when it's handwritten on a clipboard. The builder's project manager will treat it as one. So should you.
- Photograph everything. Each item, with the blue tape visible in the frame. Include something in the photo that establishes location (a doorway, a window, a built-in).
- Write everything down. A taped item without a written description is ambiguous. Was that scratch on the floor or the baseboard? Was that paint touch-up on the wall or the trim?
- Get the list signed before closing. Both your signature and the builder's project manager. This becomes the record of what was agreed.
- Keep the original. Make copies. The builder gets a copy; you keep the signed original.
- Verify completion in writing. When the builder reports items complete, walk back through and confirm. Email the builder when each item is verified done.
When to Bring an Independent Inspector
An independent inspector is paid by the buyer and works for the buyer — not the builder. They look at the home with experienced eyes and find issues neither the buyer nor the builder is likely to catch. For most new construction in the Treasure Valley above $500,000, hiring one for the pre-close walkthrough is worth the $400 to $700.
For luxury or custom homes above $1 million, hiring an inspector twice — once at pre-drywall and once at pre-close — is the standard recommendation. The pre-drywall inspection often catches framing or rough-in issues that would be expensive or impossible to address once the walls close. The pre-close inspection catches finish issues the builder's project manager has stopped seeing because they have been in the home for nine months.
Inspectors in the Treasure Valley can be found through the American Society of Home Inspectors (ASHI) directory or the International Association of Certified Home Inspectors (InterNACHI) directory. Confirm they have experience with new construction specifically — resale inspection experience is different.
What to Do If You Find a Major Issue
Most walkthrough findings are minor — paint touch-ups, drywall fixes, hardware adjustments, caulking. Occasionally something more serious emerges: a non-functional HVAC system, plumbing that fails when tested, structural concerns, missing items from the contract spec sheet.
For major issues:
- Document thoroughly before discussing with the builder — photos, written description, location.
- Notify the builder in writing — not just verbally at the walkthrough.
- Talk to your agent immediately about whether the issue is closing-blocking under your contract.
- Consider escrow holdback — a portion of the purchase price held in escrow until specified repairs are completed. Your agent and the title company can structure this.
- Consult an attorney if the issue is large, the builder is uncooperative, or the contract terms are unclear. Closing on a home with a material defect is much harder to address than delaying closing.
Refusing to close is a serious step with contractual consequences. It is sometimes the right step. The decision depends on the specific issue, the contract language, and the strength of the buyer's documented case.
The Bottom Line
The walkthrough is not a formality. It is the single most important hour or two of the entire new construction process, because it is the moment when the buyer's leverage is highest and the documentation that protects the buyer is created. Prepare for it like preparation matters — because it does.
Three walkthroughs, a blue-tape kit, a printed checklist, an independent inspector for higher-value builds, and a documentation discipline that creates a clear written record. That is the playbook. Most of what goes wrong in new construction is preventable. Prevention happens at the walkthrough.
What governs the walkthrough — and your remedies if something is wrong — is the purchase contract you signed months ago. Reading the contract before the walkthrough is what makes the walkthrough effective. Worth a closer look at the contract structure too.