What 1-2-10 actually promises
A builder warranty is an express limited warranty from the builder on a newly constructed home. The conventional structure is described as 1-2-10:
- 1 year — workmanship and materials
- 2 years — systems and distribution: plumbing, electrical, and heating and cooling delivery
- 10 years — major structural defects
The FTC describes the same shape: one year for workmanship and materials on most components, two years for HVAC, plumbing and electrical systems, and ten years for "major structural defects," adding that FHA and VA loan programs require builders to buy third-party warranties.
Read the ladder downward and the risk becomes obvious. Year 1 is broad and short; Years 3 through 10 are long and almost unusably narrow. A buyer's attention goes to the ten, because it sounds like a decade of protection, and that is the wrong end of the ladder to watch.
A builder warranty is also not a home service contract: the FTC notes that new-home warranties "usually don't cover household appliances," and they do not cover wear-and-tear failure at all. And "1-2-10" is a market convention, not a national rule — Louisiana's statutory structural period is five years.
"Major structural defect" is far narrower than it sounds
The statutes and the industry documents converge on nearly identical language, far narrower than buyers expect. A major structural defect is not a big crack. It requires actual physical damage to designated load-bearing elements, caused by failure of those elements, impairing their load-bearing function to the point the home becomes unsafe, unsanitary or otherwise unlivable.
- Louisiana, La. R.S. 9:3143: "any actual physical damage to the following designated load-bearing portions of a home caused by failure of the load-bearing portions which affects their load-bearing functions to the extent the home becomes unsafe, unsanitary, or is otherwise unlivable."
- New Jersey, N.J.S.A. 46:3B-2: "any actual damage to the load bearing portion of the home including damage due to subsidence, expansion or lateral movement of the soil…which affects its load bearing function."
- Minnesota, Minn. Stat. § 327A.01: "actual damage to the load-bearing portion of the dwelling…which vitally affects or is imminently likely to vitally affect use of the dwelling for residential purposes."
One third-party administrator's booklet lists the designated load-bearing elements explicitly — "roof framing systems, load-bearing walls and partitions, beams, columns, footings and foundation systems, floor framing systems, girders, lintels, and masonry arches" — then uses the statutory formula almost verbatim.
The consequence is the most costly misunderstanding in new construction. Cosmetic foundation cracking, drywall cracking, and settlement within building tolerance are workmanship items — Year 1 — not structural items. A buyer waiting for the ten-year structural warranty to handle them is waiting for coverage that will never attach, and the Year 1 remedy expires while they wait.
The state statutes, and what they require of the owner
Where a state has a new home warranty statute, the statute rather than the brochure sets the floor. Four are worth reading closely, because each imposes a procedural condition precedent and they do not match.
Louisiana — New Home Warranty Act, La. R.S. 9:3141–3150. Section 3144(A) sets one year for freedom from "any defect due to noncompliance with the building standards or due to other defects in materials or workmanship"; two years for "plumbing, electrical, heating, cooling, and ventilating systems exclusive of any appliance, fixture, and equipment"; and five years for major structural defects — applying "whether or not building code regulations are in effect in the location of the structure."
Two provisions do the work. Section 3145 requires that "before undertaking any repair himself or instituting any action for breach of warranty, the owner shall give the builder written notice, by registered or certified mail, within one year after knowledge of the defect." Section 3150 then makes the chapter "the exclusive remedies, warranties, and peremptive periods as between builder and owner relative to home construction."
Peremptive, not prescriptive, is the load-bearing word there. A peremptive period in Louisiana cannot be interrupted or suspended: it extinguishes the right itself, not merely the remedy.
New Jersey — New Home Warranty and Builders' Registration Act, N.J.S.A. 46:3B-1 et seq., implemented at N.J.A.C. 5:25. Section 46:3B-3 sets one year "free from defects caused by faulty workmanship and defective materials," two years for "faulty installation of plumbing, electrical, heating and cooling delivery systems," and ten years for "major construction defects." Section 46:3B-5 bars unregistered builders. Section 46:3B-9 adds an election of remedies: "initiation of procedures to enforce a remedy shall constitute an election which shall bar the owner from all other remedies."
Minnesota — Minn. Stat. ch. 327A. Section 327A.02 subd. 1 sets one year against defects "caused by faulty workmanship and defective materials due to noncompliance with building standards," two years for faulty installation of plumbing, electrical, heating and cooling systems, and ten years against "major construction defects," all running from the "warranty date" — the earlier of first occupancy or the date the initial vendee takes title. Section 327A.03 excludes "loss or damage not reported…in writing within six months after the vendee or the owner discovers or should have discovered the loss or damage," along with normal wear and tear, shrinkage within building tolerances, condensation from insufficient ventilation, owner alteration, landscaping and insect damage. The vendor must respond within 30 days, and the limitations period tolls from that notice until the dispute process ends or 180 days pass.
Texas — Residential Construction Liability Act, Tex. Prop. Code ch. 27. Texas repealed its statutory-warranty commission regime, so the operative law is a right-to-cure statute rather than a warranty statute. Section 27.004 requires certified-mail notice "specifying in reasonable detail the construction defects" at least 60 days before filing suit; the contractor then has 35 days to inspect, up to three times, and may make a written settlement or repair offer. Reject a reasonable offer and recovery is capped at the fair market value of that offer. Section 27.003 supplies defences for third-party negligence, failure to maintain, normal wear, and "normal cracking or shrinkage cracking…within the tolerance of building standards."
| State | Structure of the obligation | The notice requirement that governs |
|---|---|---|
| Louisiana (R.S. 9:3141–3150) | 1 / 2 / 5 years; exclusive remedies and peremptive periods | Written notice by registered or certified mail within one year after knowledge of the defect |
| New Jersey (N.J.S.A. 46:3B) | 1 / 2 / 10 years; builder registration required | Formal claim before the deadline; initiating a remedy is an election barring all others |
| Minnesota (ch. 327A) | 1 / 2 / 10 years from the warranty date | Written report within six months of actual or constructive discovery; vendor responds in 30 days |
| Texas (Prop. Code ch. 27) | Right to cure rather than statutory warranty | Certified-mail notice at least 60 days before suit; 35-day inspection right; damages cap if a reasonable offer is rejected |
The pattern across all four is identical: written notice, to a specific party, inside a specific window, is a condition precedent. Miss it and the merits of the defect do not matter.
How the obligation is layered: builder, administrator, insurer
Third-party administrators sit between the builder and the buyer on most new homes. 2-10 Home Buyers Warranty, Professional Warranty Service Corporation and Bonded Builders Home Warranty administer builder-backed warranties, typically with an insurance carrier standing behind the builder's obligation. They are named to identify the structure, not rated; their terms differ.
The layering is what matters, and one administrator's published booklet shows it. In Year 1 (workmanship) and Year 2 (systems and distribution), the builder or seller investigates and remedies; the warranty insurer provides surety coverage only if the builder fails, refuses, or is out of business. In Years 3 through 10 (structural), the obligation shifts: "the warranty insurer shall have the right to repair or pay you the reasonable cost of repair of any structural defect," and structural claims go directly to the administrator, in that booklet subject to a $250 investigation fee. That fee and that layering come from one dated document and should not be generalised.
The practical read is uncomfortable and important. In Year 1 you are chasing the builder, not an insurer. That is why an unresponsive, unregistered or insolvent builder is a Year-1 problem rather than a later one, and why confirming that the builder is still solvent and still registered belongs on the twelve-month checklist.
Why the inspection happens in month eleven
The one-year workmanship warranty is the broadest coverage the home will ever have and the first to expire. The eleven-month inspection converts it into a written, dated, photographed defect list before it lapses.
The mechanics are simple. The homeowner hires an independent inspector at roughly month eleven — not the builder, not the municipal inspector — and submits the report as a callback request before the anniversary date. InterNACHI's consumer material frames it exactly that way: an inspection "during the 11th month of your occupancy – before your builder's warranty expires," covering "interior & exterior walls, windows & doors, electrical, HVAC, plumbing, basement/crawlspace, fireplace, roof & attic," non-invasively and based on "observations of the visible and apparent condition," so the homeowner can "hold your builder and his subcontractors to their warranties while they're still in force."
Why not month twelve? The month of slack is not padding. It is the time the builder needs to schedule, inspect, dispute and complete, and the time the homeowner needs to escalate if the builder stalls. A report delivered at month twelve arrives after the window has closed — the difference between a punch list and a grievance.
What the eleven-month inspection typically finds
A new home's first year of settlement and drying produces a predictable list, which is why the inspection is worth its fee:
- nail pops and drywall cracking at corners and above door and window openings
- doors and windows out of square as framing dries and shrinks
- grout and caulk failure at tub, shower and countertop joints
- exterior caulk and flashing gaps
- roof shingle and ridge-vent installation defects
- HVAC balance problems, condensate line slope, and duct disconnects in attics
- attic insulation short of specified depth or coverage
- negative grading at the foundation
- missing or non-functioning GFCI and AFCI devices
- plumbing trap and vent errors
- framing and fastening defects visible from the attic
Several of those — grading, flashing, duct disconnects — are cheap Year-1 corrections that become expensive Year-3-and-later problems, and they will not meet the structural-defect definition when they do: water intrusion from negative grading is not failure of a load-bearing element rendering the home unlivable. That is the argument for month eleven rather than month thirteen.
How a callback works, and the notice trap
In writing, always — the FTC's advice is bare and correct: "put your request for repair in writing." Beyond that, five mechanics decide whether a documented defect gets fixed.
- Notice must go to the right party. New Jersey's consumer guidance states it plainly: a formal claim must be filed before the deadline, and — the point nobody anticipates — notice to your builder is not notice to the warranty administrator and does not count as filing a claim. You can do everything right with the builder and still be out of time.
- Notice must be in the required form. Louisiana requires registered or certified mail; an email to a warranty coordinator is not that.
- Notice must be inside the window. Minnesota: six months from actual or constructive discovery. Louisiana: one year from knowledge of the defect. One administrator's booklet puts it in capitals: "YOU WAIVE YOUR RIGHT TO COVERAGE…IF DEFECTS ARE NOT REPORTED WITHIN THE TIME LIMITATIONS."
- Filing may foreclose litigation. New Jersey's election of remedies bars other remedies once warranty procedures are initiated for the same defect — a deliberate decision, not a reflex.
- Suing without pre-suit notice can be costly. Under the Texas RCLA that means certified-mail notice 60 days before suit, a 35-day inspection right, and a damages cap if a reasonable offer is rejected.
Reporting defects verbally, by text, or to the site superintendent and treating that as notice is the most common way a valid first-year claim dies. The superintendent is not the warranty administrator, a text message is not certified mail, and a promise to take care of it does not stop a peremptive period.
The FTC's page on warranties on new homes is a reasonable starting point, and where a state statute applies it is short enough to read — La. R.S. 9:3145 is a single paragraph that decides Louisiana cases.
Arbitration, fee-splitting, and what is excluded
Third-party builder warranties are typically arbitration-first with a class waiver. One administrator's booklet provides that "every claim, complaint, controversy, or dispute…shall exclusively be resolved by binding arbitration and not by a judge or jury," that "you will only bring a Dispute in your individual capacity, and not as a plaintiff or class member in any purported class…proceeding," and that arbitration fees are "allocated equally among the arbitrating parties." The FTC adds that most warranties require both parties to accept the arbitrator's decision without appeal.
The fee-splitting term deserves attention: an equal split of arbitrator fees can exceed the value of a mid-sized workmanship claim outright. That is a practical barrier, and another reason the Year-1 callback — where the builder is still obliged to remedy — is worth more than the right to arbitrate later.
The exclusions are consistent across the documents and the statutes: defects outside the warranty term, conditions with no observable physical damage, diminished market value, consequential water damage, weather events, earthquake and flood, mold, mildew, fungi, or gradual deterioration from moisture, personal property, landscaping and owner alterations. Louisiana's Section 3144(B) tracks closely. Note that "no observable physical damage" excludes exactly the complaint a buyer is likeliest to raise late: a suspicion that something is wrong, with nothing visible to point at.
The mistakes, and the calendar that produces them
Six recurring errors account for most lost new-home claims, and five of them are calendar errors:
- Confusing the builder warranty with a home service contract.
- Waiting for the ten-year structural warranty to fix cracking that is Year-1 workmanship.
- Reporting defects verbally or to the site superintendent and treating that as notice.
- Reading "10 years" as ten years of broad coverage rather than load-bearing failure only.
- Scheduling the inspection at month twelve.
- Not checking that the builder is still solvent and registered before Year 1 closes.
New construction shows the point in its purest form. The workmanship warranty does not weaken as it nears month twelve; it is fully enforceable on day 364 and gone on day 366. A homeowner with a photographed, dated defect list and a certified-mail receipt at month eleven is in a strong position. The same homeowner at month thirteen has a grievance. Being right is not the same as being timely.
Frequently Asked Questions
What does a 1-2-10 builder warranty actually cover?
One year on workmanship and materials, two years on systems and distribution — plumbing, electrical, and heating and cooling delivery — and ten years on major structural defects. The FTC describes the same structure and notes that FHA and VA loan programs require builders to purchase third-party warranties.
What it does not cover matters as much: new-home warranties usually exclude household appliances and do not cover wear-and-tear failure at all. Treat 1-2-10 as a market convention rather than a national rule, since Louisiana's statutory structural period is five years.
What qualifies as a major structural defect?
Far less than buyers assume. The statutes and the industry documents use nearly identical language: actual physical damage to designated load-bearing elements, caused by failure of those elements, affecting their load-bearing function to the extent the home becomes unsafe, unsanitary or otherwise unlivable.
Designated load-bearing elements in one administrator's booklet include roof framing, load-bearing walls, beams, columns, footings and foundation systems, floor framing, girders, lintels and masonry arches. Cosmetic cracking and settlement within building tolerance are Year-1 workmanship items, not Year-10 structural items.
Why is the inspection done at eleven months instead of twelve?
Because the one-year workmanship warranty is the broadest coverage the home will ever have and the first to expire, and the claim has to be filed before the anniversary rather than on it. The extra month is working time.
The builder needs it to schedule, inspect, dispute and complete the work, and the homeowner may need it to escalate to the administrator if the builder stalls. InterNACHI's consumer material describes the inspection as happening during the eleventh month of occupancy, before the builder's warranty expires, so the homeowner can hold the builder and subcontractors to their warranties while those are still in force.
Is notifying my builder the same as filing a warranty claim?
No, and this is the trap that costs the most claims. New Jersey's consumer guidance states directly that notice to your builder is not notice to the warranty administrator and does not count as filing a claim, and that a formal claim must be filed before the deadline.
Form matters as much as recipient. Louisiana requires registered or certified mail within one year after knowledge of the defect; Minnesota requires a written report within six months after the owner discovers or should have discovered the loss. A verbal report to a site superintendent satisfies neither.
Does a builder warranty cover appliances or a broken air conditioner?
Appliances, generally no — the FTC notes that new-home warranties usually do not cover household appliances. The two-year systems coverage addresses faulty installation of plumbing, electrical and heating and cooling delivery systems, which is different from an equipment breakdown.
Louisiana's statute makes the boundary explicit, extending the two-year warranty to plumbing, electrical, heating, cooling and ventilating systems "exclusive of any appliance, fixture, and equipment." Equipment failures generally sit with the manufacturer's warranty in the early years, which is why at least one service contract's real estate edition applies a twelve-month waiting period on new construction.
What do builder warranties exclude?
One administrator's booklet excludes defects occurring outside the warranty term, conditions with no observable physical damage, diminished market value, consequential water damage, weather events, earthquake and flood, mold, mildew, fungi and gradual deterioration from moisture, personal property, landscaping and owner alterations.
State statutes track closely. Louisiana permits exclusion of normal wear and tear, owner negligence, landscaping, insect damage, consequential damages, and mold. Minnesota adds shrinkage within building tolerances and condensation from insufficient ventilation after occupancy.
Can I sue my builder instead of using the warranty process?
Often not without consequences, and sometimes not at all. Louisiana's New Home Warranty Act provides the exclusive remedies, warranties and peremptive periods as between builder and owner — and a peremptive period cannot be interrupted or suspended, because it extinguishes the right rather than the remedy.
New Jersey adds an election of remedies: initiating procedures to enforce a remedy bars all other remedies. Texas requires certified-mail notice 60 days before suit under the Residential Construction Liability Act, gives the contractor a 35-day inspection right, and caps recovery at the value of the last offer if a reasonable offer is rejected. Third-party warranties also commonly compel individual binding arbitration with a class waiver.
Do I still need a home warranty if I have a builder warranty?
The two answer different failures, and in the first year they overlap enough that at least one national provider's real estate edition contemplates a twelve-month waiting period on new construction — because the builder's warranty is primary and service contracts exclude what another warranty covers.
The builder warranty covers workmanship, materials and systems installation, not wear-and-tear breakdown and generally not appliances. New equipment also sits inside manufacturer warranties during its lowest-failure years. On a new home the eleven-month callback inspection is usually the better purchase.