What a Home Warranty Does and Does Not Cover

The air conditioning has stopped in July and you have a home warranty, so this should be somebody else's problem. Then the contract comes out and there are words like pre-existing, improper installation and aggregate limit, and the payout is a fraction of what the replacement costs. This is the commonest disappointment in American home ownership and almost all of it is predictable from the document.

This article covers what a home warranty actually is, what it reliably does and does not cover, how the caps work, whether a seller-paid warranty is worth buying, and what it does not do about disclosure.

It is a service contract, not insurance

That distinction explains most of what follows.

Insurance covers sudden, accidental loss, which is why a homeowners policy pays for a tree through the roof and not for a roof that wore out. A home warranty is a service contract covering mechanical breakdown of specified systems and appliances from normal use, subject to a list of exclusions and a schedule of limits.

It is not a promise to make the house work. It is a promise to do specified things, up to specified amounts, for specified items.

So the useful question is never whether you have a warranty. It is which schedule you bought, what it caps, and what it excludes.

What is usually in, and what is usually out

Usually covered: heating and cooling, electrical, plumbing systems, water heaters, and kitchen and laundry appliances, when they fail from normal wear.

Usually excluded, and this is where the disappointment lives:

• Pre-existing conditions. Something already failing when cover started. Providers do investigate this and it is the commonest reason a claim is refused
• Improper installation or previous repair. A system installed badly, or fixed by somebody who should not have, is frequently outside cover, which is why unpermitted work matters. Our article on unpermitted work and an Oklahoma house sale covers the wider problem
• Lack of maintenance. A filter never changed, a system never serviced
• Code upgrades and disposal. Replacing a unit frequently triggers work the current code requires, and many contracts exclude that gap entirely
• Structural items. Roof, foundation, windows, walls. A warranty is about systems and appliances, and the expensive parts of a house are usually neither
• Anything outside the schedule, which on a basic tier is more than people expect

How the money actually works

Three numbers decide what you receive, and none of them is the cost of the repair.

The service fee. Paid per visit, whether or not the claim succeeds.

The per-item cap. A limit on what the contract pays for that category. A cap well below the cost of a modern replacement system is normal rather than unusual.

The aggregate cap. A ceiling across the whole contract year. A bad year can exhaust it in spring.

Two further mechanics matter. The provider usually chooses the contractor, so you get their network rather than your own, and where cover fails you have already lost days waiting. And a payout is frequently based on the provider's cost to replace with a comparable item, not on what your installer would charge you.

Before renewing, do the arithmetic: annual premium, plus expected service fees, against what the caps would actually pay on the one failure you are worried about. For many houses the honest answer is that the money is better kept in an account for repairs.

The seller-paid warranty at a listing

Offering a one year warranty with the house is a common tactic and it is worth being clear-eyed about what it does.

What it does: reassures a nervous buyer, particularly a first-time buyer looking at an older system. It is cheap relative to a price reduction and it occasionally stops a negotiation over a system with life left in it.

What it does not do: fix a known problem, satisfy a lender's requirement, or reduce what you have to disclose. A warranty offered instead of disclosing a known failing system is worse than useless, because the claim will be refused as pre-existing and the seller will be the one holding the consequence.

Our article on Oklahoma seller disclosure requirements covers what must be told regardless, and our article on what a home inspector checks covers what will be found anyway.

New build warranties are a different thing entirely

Worth separating, because the same word covers two products that behave nothing alike.

A builder's warranty on a newly constructed house typically covers workmanship and materials for a first period, systems for a longer one, and major structural elements for longer still. It is about construction defects rather than mechanical breakdown from wear, and it is the builder or a structural warranty provider standing behind the work.

Two things follow for a seller. If your house is young enough that a builder's warranty may still be running, find the paperwork, because a transferable structural warranty is worth mentioning to a buyer. And do not confuse the two when answering a buyer's question, because telling somebody the house has a warranty when you mean the service contract you bought last year is the sort of misunderstanding that surfaces badly later.

Where work has been done on an older house, the equivalent is the contractor's own warranty. Our article on a transferable foundation warranty covers what does and does not carry across to a buyer.

If a claim is refused

1. Get the refusal in writing, with the specific contract clause relied on. Not a phone call
2. Read that clause against your document rather than against the sales brochure or the website
3. Gather maintenance records. Where the refusal is lack of maintenance or pre-existing condition, records are the whole argument
4. Ask for the internal appeal and for a second technician if the first diagnosis is the issue
5. Get your own written diagnosis from a contractor you chose
6. Ask the Oklahoma Insurance Department who regulates the product and how to complain. Free, and worth doing before paying out of pocket

Where we come in

A single failed system is not a reason to sell a house. If the roof and the structure are sound and one unit has failed, replace it. Even at full price that is a fraction of what selling costs you, and a house with a new system sells to financed buyers at full market price. We would rather say so.

Where a cash sale genuinely fits is when the failed system is one item on a list: an older house where the heating, the wiring and the roof are all near the end together, where the warranty caps would cover a small part of it, and where the total is beyond what you will fund. Our page on selling a house that needs repairs sets out how the number is built, and our repair cost estimator gives you a starting position before anybody quotes you.

The short version

• A home warranty is a service contract for mechanical breakdown, not insurance, and not a promise to make the house work
• Usually covered: heating, cooling, electrical, plumbing, water heaters and appliances failing from normal wear
• Usually excluded: pre-existing conditions, improper installation or prior repair, lack of maintenance, code upgrades and disposal, and structural items
• Three numbers decide the payout: the service fee, the per-item cap and the aggregate cap. None of them is the cost of the repair
• The provider usually chooses the contractor
• A seller-paid warranty reassures a buyer. It does not fix a known problem, satisfy a lender, or reduce what you must disclose
• If a claim is refused, get the clause in writing and ask the Oklahoma Insurance Department who regulates the product
• One failed system is not a reason to sell a sound house