Why It Matters
Here's why this matters: express warranties give you a written leg to stand on when something fails after closing. They appear in purchase contracts, builder warranties, appliance disclosures, and seller disclosure forms. When a seller warrants the roof is leak-free and it leaks on day 30, that warranty is your enforcement mechanism. Without one, you're arguing intent; with one, you're arguing breach.
At a Glance
- An express warranty is an explicit, written promise about a property's condition or performance
- Verbal promises rarely survive a merger doctrine challenge once an integration clause is signed
- Sellers create warranties through disclosure forms, contract addenda, or listing materials
- Builder warranties typically cover workmanship (1 year), systems (2 years), and structural defects (10 years)
- An as-is sale limits but does not eliminate all warranty obligations — known defects must still be disclosed
- Express warranties are enforced through breach of contract claims
- Statutes of limitations vary by state — typically 4 to 6 years from discovery of the breach
- Integration clauses at closing can extinguish oral promises not written into the agreement
- Verify which warranties survive closing and how long before releasing earnest money
How It Works
How express warranties arise. A warranty becomes express when someone explicitly commits to a specific condition in writing. In real estate, this happens through seller disclosure forms, purchase agreement addenda ("Seller warrants all appliances are in working order at closing"), and listing materials describing systems as recently replaced. Each affirmative representation can be held as an express warranty if the buyer relied on it.
Builder warranties. New construction follows a structured framework: workmanship (1 year), mechanical systems (2 years), structural defects (10 years). For rental investors, confirm the transfer policy — some builders allow assignment; others void the warranty at resale. Deed restriction documents sometimes govern this.
Resale warranties. In a resale transaction, warranties come from the seller's own representations. If a disclosure form states the roof was replaced in 2021 and has no known leaks, that's an express warranty. Title insurance covers ownership claims, not physical condition — those remain the seller's responsibility. Treat every disclosure form as a warranty document.
As-is clauses and their limits. An as-is clause does not erase prior written representations. Affirmative statements made on a disclosure form before the as-is clause was signed remain enforceable. As-is covers unknown conditions — not defects the seller explicitly described.
Real-World Example
Lisa went under contract on a 4-unit multifamily in Raleigh at $487,000. The seller's disclosure form stated all four HVAC units were replaced in 2022. Eleven months after closing, one unit failed. The contractor pulled the serial number: manufactured in 2009. Only two of the four units were new.
Lisa had the signed disclosure form. She filed a breach of express warranty claim. The seller's attorney argued the as-is clause covered the failure. Lisa's attorney countered that the written disclosure representation predated and survived the as-is clause. The parties settled for $11,400 — replacement cost plus attorney fees.
Her rule now: photograph every disclosure at signing and add a contract addendum referencing the specific representations she's relying on.
Pros & Cons
- Provides written enforcement rights when a warranted condition fails after closing
- Shifts repair costs back to the seller or builder for covered defects
- Creates a clear damages baseline — what was promised versus what was delivered
- Adds accountability to disclosure forms, reducing risk of material misrepresentation
- Only as useful as your ability to prove the warranty was made and relied upon
- Builder warranties often exclude investor-owned rentals or limit transfer rights
- Statute of limitations varies by state — waiting too long can extinguish a valid claim
- Sellers may disclaim warranties through carefully drafted as-is or integration clauses
Watch Out
As-is doesn't erase written promises. A seller cannot use an as-is clause to undo affirmative representations already made on a disclosure form. Courts evaluate both documents together — if you're buying as-is, read the disclosures carefully first.
The merger doctrine eliminates oral promises. Verbal representations are extinguished by the integration clause at closing unless written into the contract. If a seller's verbal claim matters to your underwriting, get it in a signed addendum before you close.
Builder warranties exclude tenant damage. New-construction warranties commonly carve out tenant-caused damage. For rental investors, review the exclusion list before relying on warranty coverage.
Ask an Investor
The Takeaway
When a seller puts a condition in writing on a disclosure form, that representation survives closing as an enforceable warranty — regardless of as-is language elsewhere in the purchase agreement. Express warranties are only valuable if you've documented them carefully.
Treat every seller disclosure as a warranty document. Photograph it at signing, reference it in your addenda, and compare against inspection findings. The title insurance policy won't cover a failed HVAC — the disclosure form is what does.