The New Homeowners 11-Month Warranty Checklist

Why it matters

The first year of a new home’s life is a period of adjustment. As the heavy materials—concrete, lumber, and drywall—dry out and settle into the soil, the structure will shift. This natural process often results in "settlement cracks" in drywall or pops in the flooring. While these are usually cosmetic, the 12-month mark is your final opportunity to have the builder repair these issues at no cost to you.

Beyond aesthetics, a year-1 warranty check identifies "latent defects"—problems that weren't visible during the final walkthrough but have surfaced after a full cycle of seasons. Detecting a flashing leak or a poorly sealed duct now can prevent thousands of dollars in mold remediation or structural rot five years down the line. Most builders provide a "workmanship warranty" that expires exactly 365 days after closing; missing this window means you inherit the full financial liability for their mistakes.

How often

The new construction warranty process generally follows a specific timeline:

• The 30-Day List: A secondary "punch list" for items missed during the initial move-in.
• The 11-Month Inspection: This is the most critical milestone. You should perform or commission a full inspection between months 10 and 11.
• The Year-1 Submission: All claims must be submitted in writing before the one-year anniversary of your closing date.

What you need

• Your Original Contract: To verify what is covered (and what is explicitly excluded).
• Blue painters tape: For marking scuffs, cracks, or nail pops.
• A high-powered flashlight: To check for leaks in dark attics or crawlspaces.
• A camera or smartphone: For time-stamped photo documentation.
• A digital level or marble: To check for floor sloping or sticking doors.
• A "Warranty Log": A simple spreadsheet to track submission dates and repair statuses.

Step-by-step to a successful warranty claim

1. Conduct a "seasonal" audit

Walk through your home and look for changes that occurred during weather shifts. Check windows for drafts, look for condensation between glass panes, and inspect the exterior grading to ensure water is still flowing away from the foundation after heavy rains.

2. The Interior "Flashlight Walk"

Wait until a bright day, then close your blinds and use a flashlight to look across walls and ceilings. This side-lighting will reveal:

• Nail pops: Small circular bumps where drywall screws have backed out.
• Truss uplift: Cracks where the wall meets the ceiling.
• Corner bead cracks: Vertical cracks at the corners of walls.

3. Test every mechanical system

Don't assume everything works just because it's new.

• Run the dishwasher, washing machine, and every faucet simultaneously to check for drainage speed and leaks.
• Cycle the HVAC through both heat and "max cool" modes.
• Check every electrical outlet with a simple plug-in tester.

4. Hire an independent inspector (The 11-Month Inspection)

Even if you are handy, a professional home inspector will find things you cannot see. They will get on the roof to check shingles and vent flashings, and they will use infrared cameras to detect missing insulation or slow leaks behind walls. This report serves as your formal evidence for the builder.

5. Categorize and submit

Group your findings into categories (Plumbing, Electrical, Drywall, Exterior). Submit your list through the builder’s official warranty portal. Always do this in writing. Verbal promises from a site supervisor are not legally binding.

6. The "Work Day" Management

Builders typically want to consolidate all repairs into one or two service days. Ensure you are home to supervise. Do not sign off on the repairs until you have personally inspected every item on your original list.

When to call a pro

You should always hire a professional home inspector for an "11-month warranty inspection." While you can spot a crack in the drywall, a pro can identify:

• Improperly supported joists in the crawlspace.
• Insufficient attic ventilation that leads to ice damming.
• Back-drafting water heaters that pose a carbon monoxide risk.
• Code violations that the municipal inspector may have missed.

Safety

• Attic/Crawlspace: Do not enter these areas if you are uncomfortable with heights or tight spaces. Exposed insulation can cause skin and lung irritation; always wear a mask and long sleeves.
• Electrical: If you notice a "fishy" smell or scorched outlets, do not wait for the 11-month mark. This is an emergency fire hazard. Call the builder’s emergency line or an electrician immediately.
• Gas: If you smell sulfur or "rotten eggs," leave the house and call the gas company.

Cost

• DIY Audit: $0 (excluding your time).
• Professional 11-Month Inspection: $300 – $600 depending on home size and location.
• Repairs: Under a standard warranty, the cost to you should be $0. The builder is responsible for labor and materials for warrantied defects. Note that some builders may charge a small "service fee" for non-emergency visits, though this is rare in the first year.