Most buyers think a new house should be trouble-free at month 11. They’re wrong. An 11 month home warranty inspection checklist is where small defects get caught before they become denied claims, water damage, or an argument about whether the problem was ever reported.
What an 11 month home warranty inspection checklist is
An 11 month home warranty inspection checklist is a defect-tracking list used near the end of the first-year warranty period on a new home. It is usually done around month 10 to 11 so you still have time to inspect, document, and submit issues before the first-year reporting deadline. This is not the same thing as a resale buyer inspection checklist. It is built for new-construction warranty claims, not due diligence before you waive conditions.
A professional inspection and a DIY walkthrough are not the same. A homeowner can spot obvious issues like sticking doors, cracked caulking, drafts, and leaks, while a home inspector may spend about 2–4 hours on site depending on the home size and scope. I tell clients to use both if the defect list is growing, the house has moisture symptoms, or the builder is already pushing back.
Ontario buyers need to keep the province-specific process separate from general Canadian advice. Tarion administers Ontario’s new-home warranty program, and the forms, deadlines, and claim steps should be checked directly with Tarion before you submit anything. That matters because warranty timing, terminology, and reporting opportunities are program-driven, not just builder-driven.
Inspection timing: PDI vs final walkthrough vs 30-day vs 1-year vs later warranty periods
Different inspection stages catch different problems. Some defects show up on day 1, like scratched finishes or missing fixtures, while others show up after 6–12 months of weather, heating, cooling, and settlement. That is why a buying a new home inspection checklist and a 1 year home warranty checklist do different jobs.
| Stage | Typical timing | Main purpose | Issues commonly found |
|---|---|---|---|
| PDI / pre-delivery inspection | Before possession or occupancy | Record visible incomplete, damaged, or missing items before move-in | Chips, scratches, missing hardware, damaged flooring, paint defects |
| Final walkthrough | Near closing or possession | Confirm agreed items and basic condition at handover | Appliances missing, unfinished items, obvious damage, cleaning deficiencies |
| Early warranty review | Roughly first 30 days where the program allows | Catch defects noticed after living in the home | Leaks, sticking doors, failed outlets, HVAC imbalances |
| Year-end / 11-month review | Around month 10 to 11 | Catch first-year defects before the deadline | Settlement cracking, grading problems, failed caulking, recurring leaks |
| Later warranty periods | 2-year, major structural, or other later periods depending on program | Report longer-term system, envelope, or structural concerns | Water penetration, major cladding issues, structural movement |
PDI and final walkthroughs are front-end checks. The 1 year new home warranty inspection checklist is a lived-in performance check. In practice, the year-end review is where I see the most useful evidence because the home has gone through at least one heating season, some weather swings, and ordinary daily use.
Ontario timing can differ between freehold and condo purchases, especially where occupancy and final closing do not happen on the same day. Buyers should confirm the current Tarion process, forms, and submission deadlines directly because those details change, and getting the stage wrong can kill an otherwise good claim.
What to inspect before your builder warranty deadline: room-by-room and system-by-system checklist
A good 1 year home warranty inspection checklist is room-by-room and system-by-system. Printable lists work best because defects are easier to miss when you rely on memory. I tell owners to walk the house once in daylight, once at night, and once during or after rain if possible.
Exterior and site
The exterior should shed water away from the house. Check for pooling water that sits more than 24–48 hours after rain, soil that has sunk beside the foundation, downspouts dumping too close to the house, damaged siding, missing sealant, cracked steps, loose railings, and gaps where trim meets masonry. Grading and drainage issues are common at the 11-month stage because one wet season is often enough to expose them.
Roofline and visible upper areas
The roof does not need a dangerous climb to inspect basic symptoms. Check from the ground for missing shingles, bent flashing, loose soffits, damaged eavestroughs, staining at soffits, and water marks on exterior walls below roof transitions. Missing flashing and poor water shedding are worth reporting early because they can turn into interior damage fast.
Foundation, basement, and crawlspace
Basement and foundation issues matter because water problems get expensive quickly. Look for damp spots, white mineral staining, musty odours, visible seepage, widening cracks, floor cracks that change over time, and insulation or vapour barrier defects in unfinished areas. Hairline shrinkage cracks can be normal in new construction, but cracks that widen, leak, or show movement deserve immediate documentation.
Garage
Garages reveal settlement and water entry problems early. Check slab cracking, door alignment, weatherstripping, water intrusion at the threshold, opener function, self-closing hardware where required, and gaps at framing joints. A garage that takes in water during ordinary rain or snowmelt is not something I would leave for year two.
Attic or safely visible insulation/ventilation areas
Only inspect areas you can access safely. Look for wet insulation, staining, mould-like growth, disconnected ducts, blocked vents, and signs of condensation around attic hatches or roof penetrations. Ventilation defects often show up after one winter because warm indoor air finds the weak spots first.
Plumbing
Plumbing defects are among the most reportable first-year issues. Run every tap for several minutes, flush every toilet, fill and drain tubs, check under sinks, inspect supply and drain connections, and look for slow drains, leaks, poor hot-water delivery, and movement in fixtures. Even a small active leak can cause drywall, cabinet, and flooring damage within days to weeks.
Electrical
Electrical checks should stay basic unless an electrician is involved. Test switches, receptacles, GFCI-type protection where present, light fixtures, exhaust fans, the doorbell, and garage power. Non-functioning outlets, tripping circuits, buzzing devices, or fixtures that flicker under normal use should be documented with dates and conditions.
HVAC and ventilation
Heating and cooling should work throughout the home, not just at the thermostat. Check whether rooms are consistently too hot or too cold, whether supply air is weak, whether the HRV/ERV or bath fans run properly, and whether condensation builds up around windows or vents. Uneven temperatures across multiple rooms after 6–12 months of occupancy can point to airflow, balancing, duct, or insulation issues.
Windows and doors
Windows and doors should open, latch, seal, and resist ordinary weather. Check for drafts, sticking, failed locks, broken screens, water staining, condensation between glass panes, and caulking gaps. Failed seals and water entry around openings are more important than minor paint touch-ups because envelope defects tend to spread.
Kitchen
Kitchens show both cosmetic and functional defects. Check cabinet alignment, loose hardware, countertop seams, backsplash gaps, under-sink leaks, appliance operation, GFCI-type receptacles where present, and flooring movement in front of the sink and dishwasher. Swelling cabinet panels or soft flooring near water lines can be early signs of ongoing leakage.
Bathrooms
Bathrooms are high-risk because water damage starts small. Check all tile joints, tub and shower caulking, fan operation, toilet stability, vanity leaks, soft drywall, loose fixtures, and water escape around glass or enclosure edges. Failed caulking is common in the first year, but repeat water escape after repairs should be logged as a recurring functional issue.
Interior finishes and structure-related symptoms
Interior finish issues become warrantable or non-warrantable based on severity, cause, and recurrence. Look for drywall cracks that widen, nail pops that keep returning, uneven flooring, squeaks tied to movement, stair deflection, bowed trim, and doors that no longer close squarely. Small settlement marks may be ordinary, but movement that affects function is worth escalating.
Safety devices and basic life-safety items
Life-safety items should be checked first, not last. Test smoke and carbon monoxide alarms using the built-in test function, confirm handrails are secure, and note any obvious missing covers, broken glazing, or unsafe loose fixtures. Home inspectors do not perform full code enforcement, but visible safety-related defects should go to the top of your report.
Warranty-eligible defects vs cosmetic issues vs homeowner maintenance
Not every defect belongs in the same bucket. The useful split is between issues that are often warrantable, issues that depend on cause or severity, and issues builders often treat as maintenance or exclusion items. Coverage depends on the warranty terms, the construction standard involved, the cause, and your evidence.
| Often warrantable | May depend on cause or severity | Commonly treated as maintenance or excluded |
|---|---|---|
| Active water intrusion | Settlement cracks | Minor paint scuffs after occupancy |
| Missing or failed flashing | Nail pops | Routine caulking upkeep after wear |
| Non-functioning plumbing or electrical components | Minor floor unevenness | Owner-caused damage |
| Failed window seals or leaks | Interior shrinkage gaps | Wear from normal use |
| Significant grading or drainage failure | Condensation issues | Seasonal upkeep like filter changes |
| Improperly installed components affecting function | HVAC imbalance | Damage after unauthorized alterations |
Water, safety, and function usually matter more than appearance. A scratched baseboard is one thing. A recurring leak, failed seal, or grading problem that drives water toward the foundation is a different file entirely.
The three most obvious ways owners weaken a warranty claim are unauthorized alterations, poor maintenance, and owner-caused damage. Those are not magic words that defeat every claim, but builders raise them all the time. If you changed the grading, opened walls, removed equipment, ignored an active leak, or failed to do ordinary maintenance, expect the builder to point to that first.
The most common problems found at the 11 month or 1 year stage
The most common new-home issues at the 11 month warranty inspection checklist stage are moisture, movement, and systems that never worked properly. In plain English, I see drainage defects, water entry, failed caulking, HVAC imbalance, plumbing leaks, electrical deficiencies, recurring drywall cracking, and doors or windows that bind after seasonal change.
The biggest red flag in any home inspection is uncontrolled water. That includes seepage, roof leaks, window leaks, grading that traps water against the house, and bathroom leaks that keep wetting finishes. Water is the issue most likely to worsen in weeks to months and the one most likely to trigger expensive secondary damage.
The most common home inspection fails in new homes are usually not dramatic structural collapses. They are functional failures that should not happen in a brand new home: outlets that do not work, exhaust fans that do not vent properly, windows that leak, low spots that hold water, poor caulking, and repeated drywall movement. Small repetitive defects matter because repetition helps prove the issue is real and unresolved.
Property value drops fastest when defects point to water, structural movement, or chronic building-envelope problems. Cosmetic wear can usually be fixed on a budget. Ongoing moisture or movement issues can affect resale, financing, insurance questions, and the buyer’s willingness to proceed.
How to document defects for a stronger warranty claim
A strong claim is organized before it is emotional. Keep a dated defect log, sort issues by room, and rank each item as cosmetic, functional, water-related, or safety-related using a 4-level severity system. That turns a vague complaint into a usable record.
Photos help, but photos alone are weak for intermittent problems. Use video for leaks, noises, vibration, sticking windows, pooling water, fan failures, furnace short cycling, and anything that changes while operating. Include the date, the room, the weather, and what was happening when the defect appeared.
The best evidence package usually has 6 parts: a defect list, dated photos, dated videos, copies of service requests, copies of builder replies, and the inspection report if one was prepared. File names should be boring and clear, like Basement-north-wall-water-stain-2026-04-12.
Context matters as much as images. Note when you first saw the issue, how often it happens, whether it got worse, whether weather triggered it, whether anyone tried to repair it, and what happened after the repair. I have seen recurring issues denied simply because the owner had a few good photos but no timeline.
A home inspection report usually includes the property address, inspection date, scope limits, system-by-system observations, photos, and a summary of defects or recommendations. It is not a warranty approval. It is evidence that can support your submission and your follow-up with the builder.
Common builder pushbacks and how homeowners can respond
Builders usually push back in predictable ways. The common lines are normal settlement, cosmetic only, maintenance item, seasonal issue, homeowner damage, or not reported in time. None of those answers ends the discussion by itself.
“Normal settlement” is the pushback I see most on drywall, trim, and door alignment complaints. The answer is better evidence. If the crack widened over 3–6 months, the door stopped latching, or the same repair failed twice, document the progression and the repair history.
“Maintenance item” is common on caulking, grading touch-ups, filters, and owner upkeep. Sometimes the builder is right. Sometimes the issue only looks like maintenance because the installation failed first. A leaking shower joint after a recent repair, or grading that was inadequate from the start, should be framed with dates, symptoms, and photos after rain.
“Seasonal issue” often comes up with condensation, airflow, and exterior movement. Seasonal conditions can matter, but they do not excuse a recurring defect that appears under ordinary use. If the issue shows up every cold spell or every heavy rain, that pattern is useful evidence, not a reason to stop reporting it.
“Homeowner damage” is where records save you. Keep receipts, service tickets, and a repair history. If a problem existed before you installed shelves, painted a room, or changed landscaping, your timeline may be the difference between a denial and a serious response.
Escalation routes in Ontario depend on the current warranty process. Tarion’s forms, portal steps, builder response rules, and any conciliation options should be checked directly with Tarion because those procedures can change. If the dispute starts affecting closing documents, title issues, occupancy problems, or broader legal rights, that is when I tell people to get legal advice on the file.
What to do after the inspection
After the inspection, move fast and keep one master file. A 6-step workflow works well on most files: review the findings, sort the evidence, submit before the deadline, track responses, confirm repair dates, and re-check every repair. Miss one of those steps and the claim gets weaker.
Submission should be done in the format the warranty program currently requires. In Ontario, that means checking Tarion’s current forms, portal instructions, and deadlines directly before you file. Do not assume a text message to the site supervisor counts as proper notice.
Repair tracking should be as organized as the original report. Keep a single folder with the submission, photos, videos, builder emails, proposed repair dates, completed work notes, and re-inspection results. I prefer a simple spreadsheet with columns for item, room, date reported, builder response, repair date, and status.
Re-inspect completed work within days, not months. A patched crack, resealed window, or adjusted door should be tested again under normal use and, where relevant, after the next rain or temperature swing. Repeat failures should be logged as repeat failures, not brand-new issues.
Some disputes stop being checklist problems and become legal problems. If a defect dispute starts affecting possession, closing funds, title documents, builder obligations, or litigation risk, LD Law LLP can review the situation and discuss next steps.
Should you hire a home inspector for an 11 month or 1 year warranty inspection?
Yes, a professional inspector can be worth it if the house has recurring issues, moisture symptoms, broad deficiency concerns, or systems that never performed properly. A typical inspection for this kind of review often costs about $300–$800 and takes about 2–4 hours, depending on the property size, location, and tools used. The exact cost depends on the home and the scope.
No, not every owner needs an inspector for every year-end review. If your defect list is short, visible, and well documented, a careful DIY walkthrough can still be useful. The better question is whether an independent report will help prove a recurring functional issue.
Ask the inspector direct questions before booking. Ask whether they have done new-construction warranty inspections before, whether they use moisture meters or thermal imaging where appropriate, what their sample report looks like, what they exclude, and how fast they deliver the report. A 24–72 hour report turnaround is common on straightforward files.
A general home inspection does not usually include destructive testing, engineering opinions, hidden defects behind finished walls, mould lab analysis, permit searches, legal advice, or guaranteed code-compliance conclusions. That limitation matters because a warranty inspector reports observed conditions, not every possible hidden defect.
Ontario-specific notes for new-home buyers
Ontario buyers should verify the current Tarion process directly before relying on any checklist. Tarion is the key source for current forms, deadlines, and reporting steps. That matters because the wrong form, the wrong stage, or a missed deadline can do more damage than a weak photo.
Condo and freehold timelines do not always line up neatly. Occupancy, final closing, common-element issues, and unit-specific issues can be tracked differently depending on the project structure. If you bought a new condo, read your closing package and warranty materials together rather than assuming the freehold timeline applies the same way.
Some new-home disputes overlap with closing and title work. I have seen builder deficiency fights sit beside delayed occupancy issues, unresolved adjustments, registration concerns, and title-related questions. The inspection itself is not a legal process, but the fallout can become one.
FAQ
What is an inspection checklist?
An inspection checklist is a structured list of items to review so defects are recorded consistently. In this context, it is a printable-style tool for checking a new home by room, system, and severity before a warranty deadline.
What should be included in an inspection checklist?
A useful checklist includes exterior, grading, foundation, roofline visible from the ground, plumbing, electrical, HVAC, windows, doors, kitchen, bathrooms, interior finishes, and safety devices. It should also include space for date noticed, severity, recurrence, weather conditions, and whether photos or videos were taken.
What is the checklist of inspection?
The checklist of inspection is just another way of saying the itemized list used during the inspection. For a brand new home inspection checklist, it should focus on observable symptoms, not legal conclusions or technical code arguments.
What is the 11 month walkthrough?
The 11 month walkthrough is consumer shorthand for the year-end review done shortly before the first-year new-home warranty reporting deadline. It is usually scheduled around month 10 or 11 so there is still time to gather evidence and submit issues.
When should I schedule an 11 month warranty inspection?
Schedule it about 4–8 weeks before the first-year deadline if possible. That gives you time to inspect, collect evidence, book an inspector if needed, and submit while the reporting window is still open.
What do warranty inspectors look for?
They look for visible defects, operational failures, water issues, movement, poor installation symptoms, and systems that do not perform as expected. They usually do not decide the legal coverage question on the spot.
What are the four types of inspections that can be done?
For new homes, the four practical types are PDI, final walkthrough, early post-possession review, and year-end warranty review. Some owners also add specialist inspections for roofing, HVAC, or moisture where the facts justify it.
What are the five types of inspection?
A broader five-part list would be PDI, final walkthrough, 30-day style review where available, year-end review, and later warranty-period review. Different provinces and programs label these stages differently.
What are the 7 steps of the inspection process?
A simple 7-step process is: prepare your checklist, inspect room by room, test systems, photograph and video defects, rank severity, organize evidence, and submit or follow up before the deadline. That sequence is more useful than trying to inspect casually and reconstruct the file later.
What is the first thing an inspector wants to see?
Usually the first useful thing is access and context. Inspectors want the home accessible, utilities on, and a short list of known concerns so they can target recurring issues early in the visit.
What are the most common home inspection fails in new homes?
The repeat offenders are water entry, grading and drainage, failed caulking, HVAC imbalance, electrical defects, plumbing leaks, and windows or doors that do not operate properly. Cosmetic marks appear too, but the functional issues matter more.
What is the biggest red flag in a home inspection?
Water intrusion is the biggest red flag. It can signal envelope, grading, plumbing, or roofing defects, and it can spread into mould, rot, staining, and finish damage if left alone.
What items are not typically included in a home inspection?
Most inspections do not include hidden defects inside sealed walls, invasive testing, asbestos or mould lab testing, appraisal, legal opinions, permit history, or guaranteed compliance with every building code requirement. Scope limits should be set out in the inspection agreement.
What is the difference between a buyer inspection checklist and a 1 year home warranty checklist?
A buyer inspection checklist is mainly for deciding whether to buy a property and on what terms. A 1 year home inspection checklist or 1 year home warranty inspection checklist is for documenting defects in a new home before warranty deadlines. One helps with purchase risk. The other helps with warranty reporting.
What should I ask a home inspector?
Ask about new-construction warranty experience, sample reports, tools used, scope limits, turnaround time, and whether they can explain recurring moisture, HVAC, or settlement symptoms clearly in the report.
How do I prepare for my buyer client’s home inspection?
Have utilities on, clear access to mechanical areas, attic hatches, sinks, and windows, and prepare a written defect list in advance. If you are helping a client with a new-build file, keep the inspection notes separate from any warranty submission package so nothing gets lost.
What are common issues in new construction homes?
Common issues include settlement cracking, shrinking caulking, poor grading after weather, window and door adjustment problems, incomplete finishes, HVAC balancing issues, plumbing leaks, ventilation defects, and exterior water-management problems.
What to watch out for during a home inspection?
Watch for recurring problems, not just visible blemishes. Repeated leaks, cracks that change, doors that move out of alignment, and rooms that never heat or cool properly are more important than one-off cosmetic marks.
What are the three obvious things that will void a warranty?
No single list fits every warranty, but the usual trouble spots are unauthorized alterations, lack of maintenance, and owner-caused damage. Do not rely on a shortcut here. Read the warranty materials and verify the current Ontario rules before acting.
What should I do if the builder refuses to fix reported defects?
Stay factual, organized, and deadline-focused. Preserve the report, your defect log, photos, videos, service requests, and builder replies, then check the current Tarion escalation process. If the dispute starts affecting closing, title, occupancy, or your legal rights, get current legal advice on your file.