Construction warranties are the written and implied promises that decide who pays to fix defects after a home is built or renovated. They come from three places at once: the builder’s express written warranty in the construction contract, implied warranties that state common law attaches automatically, and separate manufacturer warranties on individual products installed in the home. Most new-home coverage follows a tiered structure — one year for workmanship, two years for mechanical systems, and up to ten years for major structural defects — but the exact terms live in the contract you signed.
The 1-2-10 Coverage Framework
The residential construction industry has largely settled on a tiered coverage structure often called the “1-2-10” warranty. Coverage periods track how visible and how critical each component is.
- One year for workmanship and materials. Paint, flooring, drywall, trim, and siding. Settlement cracks, minor paint peeling, and gaps in trim fall here. Builders separate material defects (a manufacturing problem in the flooring itself) from workmanship defects (the flooring was installed incorrectly).
- Two years for mechanical systems. The delivery side of plumbing, electrical, and HVAC: pipes behind walls, wiring to the breaker box, ductwork distributing heated and cooled air. End-use fixtures like faucets, lightbulbs, and outlet covers usually aren’t included. A leaking pipe inside a wall is a systems claim; a dripping kitchen faucet typically isn’t.
- Ten years for major structural defects. Load-bearing walls, foundation, roof framing, and other components that hold the building up. Some programs define a “major structural defect” narrowly as a problem that makes the home unsafe, such as a roof at risk of collapse.1Federal Trade Commission. Warranties for New Homes
Not every builder uses identical terms, and some offer shorter or longer periods for specific categories. The contract controls. Read the actual warranty document rather than assuming the 1-2-10 framework applies automatically.
Express and Implied Warranties
An express warranty is a specific, written promise in the construction contract. It states what the builder guarantees about materials and labor, how long the guarantee lasts, and what the builder will do if something fails. If the builder put it in writing and signed, a court can hold them to it under ordinary contract law.
Express warranties usually cover the builder’s own craftsmanship. If a window leaks because the installer sealed it poorly rather than because the glass was defective, the builder’s labor warranty handles the repair. Industry-standard periods run about one year for general workmanship, but whatever the contract says is what applies.
Implied warranties exist automatically through common law, even when the contract is silent. Two matter most in residential construction.
Warranty of Habitability
Courts across the country have recognized that builders of new homes owe buyers an implied warranty of habitability: the finished home must be safe and fit to live in, with working heat, water, electricity, and plumbing. It applies to new construction even if the sales contract never mentions it. Some states extend this protection to later buyers; some don’t.
Warranty of Good Workmanship
The implied warranty of good workmanship requires the builder to perform tasks with the skill level typical for the local construction industry. It matters most for latent defects — hidden problems a buyer cannot spot during a walkthrough or standard inspection. Foundation cracks that appear two years in, structural beams that start sagging, or improperly routed plumbing inside walls fall here. These defects are invisible at purchase and only surface after the buyer has committed.
Manufacturer Warranties and the Magnuson-Moss Boundary
Manufacturers of individual products installed in the home provide their own separate warranties. A roofing manufacturer might back shingles for thirty years while a furnace maker guarantees parts for five. These run alongside the builder’s warranty but cover different problems: the manufacturer stands behind the material, the builder stands behind the installation. Both can apply to the same component at the same time, which affects who you call first.
The Magnuson-Moss Warranty Act is the federal law governing written warranties on consumer products. It requires warrantors to disclose terms “fully and conspicuously” in plain language before the sale.2Office of the Law Revision Counsel. 15 USC Chapter 50 – Consumer Product Warranties But the Act only covers “consumer products,” defined as tangible personal property used for personal, family, or household purposes.3Office of the Law Revision Counsel. 15 USC 2301 – Definitions
A house is real property, not personal property, so the builder’s warranty on the structure falls outside the Act. Separate equipment attached to the home — furnaces, water heaters, air conditioners, dishwashers — is a consumer product, and those manufacturer warranties have to meet Magnuson-Moss disclosure standards. Federal regulations make the split explicit: building materials integrated into a dwelling at the time of sale, including beams, wallboard, wiring, plumbing, and roofing, aren’t consumer products when sold as part of the real estate transaction.4eCFR. 16 CFR Part 700 – Interpretations of Magnuson-Moss Warranty Act
So the furnace warranty must satisfy Magnuson-Moss. The builder’s overall warranty on your home is a contract matter governed by state law.
What to Look for in the Warranty Document
A well-drafted warranty document eliminates ambiguity. Check for these elements before you sign the purchase agreement, not after closing — once you sign, you’ve accepted the terms, including limits and exclusions you missed.
- Warrantor identification. The builder’s full legal name, address, and contact information. This matters when you need to send a formal claim notice years later and the builder has moved or restructured.
- Coverage categories with specific expiration dates. Each tier should list exactly what’s covered and when coverage ends. Vague language like “reasonable period” invites disputes.
- Claim procedure. The exact steps for making a claim. Many warranties require written notice within a set number of days after you discover a defect, and missing that procedural deadline can forfeit your right to a covered repair.
- Exclusions. Common ones include damage from natural disasters, problems caused by the homeowner’s own modifications or neglect, normal wear and tear, and failure to maintain the home according to the builder’s guidelines.
- Implied warranty disclaimers. Some states let builders disclaim implied warranties; others restrict it. Where allowed, the disclaimer generally has to be conspicuous — written so a reasonable person would notice it. A disclaimer buried in paragraph forty-seven of a sixty-page contract in the same font as everything else may not hold up.
Arbitration Clauses
Many builders include mandatory arbitration clauses in their warranty documents. These require disputes to be resolved by a private arbitrator rather than in court, waiving your right to a jury trial. Builders favor arbitration because it moves faster, costs less than full litigation, and puts the dispute in front of someone with construction experience.
The tradeoff for homeowners is real. Arbitration decisions are generally binding with very limited appeal rights. You also lose access to the discovery tools available in court, which can make it harder to prove your case when the builder holds most of the construction records. Courts have occasionally struck down one-sided arbitration clauses — where the builder reserves the right to choose between arbitration and court while the homeowner cannot — as unconscionable. A standard mutual arbitration clause binding both parties equally is almost always enforceable.
For FHA- or VA-financed homes with third-party warranties, the homeowner can choose between arbitration and court when filing a claim against the warranty company. If arbitration is selected, the decision is binding.1Federal Trade Commission. Warranties for New Homes
Third-Party Warranty Programs
Not every construction warranty is backed by the builder alone. Some builders purchase coverage from independent third-party warranty companies that step in if the builder fails to honor a claim or goes out of business. A builder-backed warranty is only as reliable as the builder’s solvency, which is why this matters.
Third-party coverage isn’t optional for every builder. Builders of homes financed through FHA or VA loans are required to buy third-party warranties for the new construction.1Federal Trade Commission. Warranties for New Homes The federal government has a stake in the home through the loan guarantee and wants a backstop beyond the builder’s promise.
When evaluating a third-party warranty, check whether the structural coverage is a direct warranty, meaning the warranty company itself is responsible for covered defects, or a surety arrangement, where the warranty company only pays if the builder defaults. Under a surety arrangement, your first stop is still the builder.
Making a Claim: Notice-and-Cure Requirements
More than twenty states have enacted right-to-repair or notice-and-cure laws requiring homeowners to give the builder formal written notice of a defect and a reasonable opportunity to fix it before filing a lawsuit. The thinking is that many disputes can be resolved faster if the builder gets a chance to inspect and repair before lawyers get involved.
Details vary by state, but the general sequence is this: you send the builder written notice describing the defect, the builder has a set number of days to respond, and the builder gets an opportunity to inspect the property and either make the repair or offer a settlement. Skip this step in a state that requires it and your lawsuit can be dismissed before a judge looks at the merits. Many homeowners who try to handle a dispute without an attorney get caught here, filing suit while angry and watching the builder’s first motion throw the case out for failure to comply with the notice statute.
Even in states without a specific right-to-repair law, many construction contracts include their own notice-and-cure provisions requiring written notice of the defect and a defined window for the builder to respond. Those contractual requirements are enforceable on their own terms.
Filing Deadlines: Statutes of Limitations and Repose
Two separate legal clocks govern how long you have to bring a construction defect claim, and confusing them can end your case.
A statute of limitations starts running when you discover the defect, or when you reasonably should have discovered it. If a hidden plumbing problem causes water damage you first notice three years after closing, the limitations clock starts at discovery.
A statute of repose is an absolute cutoff running from a fixed event, usually project completion or acceptance, regardless of when you discover the defect. Once the repose period expires, you cannot sue even if you found the problem yesterday. Repose statutes give builders finality so that liability doesn’t follow them for decades.
Repose periods vary widely, ranging from four years to twenty. Ten years is the most common period and applies in roughly half the states. A few jurisdictions have no statute of repose for construction claims at all. Because these deadlines are unforgiving and vary so much by state, checking your state’s specific timeframes early after discovering a defect is one of the highest-value steps you can take.
Transferring Warranty Coverage
When a home changes hands during an active warranty period, whether coverage transfers depends on the warranty terms and, for covered equipment, federal law.
Under Magnuson-Moss, a “consumer” includes any person to whom a product is transferred during the warranty period. For warranties on covered consumer products — the separate equipment like a furnace or water heater — a “full warranty” cannot restrict a later buyer’s rights while the warranty is still running. The law does allow a warrantor to define warranty duration in terms of “first purchaser ownership,” which ends coverage at the moment of sale. No rights are technically cut off because the warranty expires at transfer.5eCFR. 16 CFR 700.6 – Designation of Warranties
Builder warranties on the structure are governed by the contract, not Magnuson-Moss. Many builder warranties and third-party programs allow transfer but require the new owner to submit a transfer form or closing documents to register the warranty, and some charge a fee. If you’re buying a home less than ten years old, ask the seller for the warranty booklet and check the transfer process. Failing to register doesn’t always void coverage, but it can complicate claims.
For builders using first-purchaser-only warranty language, the burden sits with the builder to prove that a claimant isn’t the original buyer. The builder can ask a homeowner to state or affirm that they’re the first purchaser, but cannot demand documentary proof of purchase for warranties defined by first-purchaser ownership.5eCFR. 16 CFR 700.6 – Designation of Warranties