A home warranty typically covers HVAC, water heaters, plumbing, electrical, and major appliances—see the item-by-item coverage and exclusion table.
Key takeaways
- A home warranty covers mechanical breakdown from normal wear on listed systems and appliances—not sudden accidental damage, which is homeowners insurance's job.
- HVAC, water heaters, core plumbing, and electrical are covered on nearly every plan; kitchen and laundry appliances usually need a mid-tier or higher plan.
- Pre-existing conditions, code violations, cosmetic damage, and breakdowns traced to missed maintenance or improper installation are excluded on nearly every contract.
- Per-item dollar caps are standard: one major provider's sample plan lists a $5,000 cap per HVAC system and up to $4,000 per appliance on its top tier.
- The FTC classifies home warranties as service contracts, not insurance—the actual contract, not the sales brochure, decides what a claim pays.
- Photograph model and serial labels and keep a basic service record for each covered system before you ever file a claim.
A home warranty typically covers the mechanical breakdown of major home systems—HVAC, water heater, plumbing, and electrical—plus, on higher-tier plans, major kitchen and laundry appliances, when the failure comes from ordinary wear and tear. The FTC classifies home warranties as service contracts, not insurance: you pay an annual premium plus a per-visit trade-service fee, and the company sends its own contracted technician to diagnose and repair (or replace) a covered item, up to a per-item dollar cap set in your specific contract. What a warranty will not pay for is just as important as what it will: pre-existing conditions, code violations, cosmetic issues, and damage traced to improper installation or missed maintenance are standard exclusions across the industry. This page is the item-by-item coverage map and the exclusion traps; the difference between a home warranty and homeowners insurance is its own topic, and tracking or registering the warranty you already have is covered separately.
What’s typically covered vs. typically excluded
| System or appliance | Typically covered | Typically excluded or capped |
|---|---|---|
| HVAC (furnace, central AC, ductwork) | Mechanical failure of the heating/cooling unit and connected ductwork from normal wear | Per-system dollar cap (commonly $5,000 on major sample contracts); mismatched or oversized equipment; missed filter changes |
| Water heater | Tank or tankless unit failure, thermostat, heating element, circulating pump | Sediment buildup from never flushing the tank; corrosion tied to unaddressed leaks; code-upgrade costs for venting |
| Plumbing (interior lines, valves, toilets, sump pump) | Leaks and stoppages in interior supply and drain lines, valves, toilets, sump pump | Slab leaks, sewer line collapse, and septic systems are frequently separate add-ons, not base coverage |
| Electrical (wiring, breaker box, outlets, switches) | Failure of wiring, the breaker box, outlets, switches, ceiling fans, doorbells | Surge damage, code violations found during repair, and pre-existing wiring problems |
| Major kitchen appliances (refrigerator, range, oven, dishwasher, disposal) | Mechanical breakdown from normal use, usually only on mid-tier or premium plans | Cosmetic damage (dents, scratches), ice makers and water lines are sometimes separate riders |
| Washer and dryer | Mechanical breakdown from normal use, usually a plan add-on rather than base coverage | Damage from overloading, foreign objects, or a dryer vent fire tied to an uncleaned vent |
That list reflects American Home Shield’s published sample plan agreement, which caps HVAC coverage at $5,000 per system on all three of its plans and puts kitchen and laundry appliances (up to $2,000–$4,000 per item depending on tier) only on its Gold and Platinum plans—its entry-level Silver plan is systems-only. Other providers structure plans differently, but the pattern holds industry-wide: systems come first, appliances are the upsell, and every covered item carries its own dollar ceiling.
The exclusion traps buyers miss
Homeowners are usually surprised less by what isn’t on the covered-items list, and more by a claim denial on an item they thought was covered. These are the four exclusions that generate the most disputes.
| Exclusion trap | What it actually means | Why it surprises people |
|---|---|---|
| Pre-existing conditions | Any defect or malfunction present before your coverage—and any waiting period—started, even if you didn’t know about it | Buyers assume “pre-existing” means a problem they knew about; contracts define it as anything that existed, known or not |
| Code violations | If bringing a repair up to current electrical, plumbing, or venting code costs extra, that upgrade cost is excluded or capped separately and low | Homeowners expect a “full repair”; the contract often pays only to restore the prior, non-code-compliant setup |
| Cosmetic issues | Dents, scratches, discoloration, and rust that don’t affect function aren’t covered even on a functioning appliance’s claim | A visibly damaged unit reads as “broken” to a homeowner; the contract only pays for loss of function |
| Improper installation or missed maintenance | A failure traced to how the unit was installed, modified, or maintained—not normal wear—is excluded | Providers can and do send a technician who documents the cause; a missing filter-change record or an unlicensed install voids the claim |
What moves the coverage—plan tier and home age
| Factor | How it changes coverage |
|---|---|
| Plan tier (basic vs. premium) | Basic plans are usually systems-only (HVAC, water heater, plumbing, electrical); mid and premium tiers add kitchen/laundry appliances and raise per-item dollar caps |
| Age and condition of the home | A newly built home may still have a builder’s structural/workmanship warranty running in parallel—that’s a separate, usually longer-term coverage on materials and workmanship, not the same product as an annually renewed home warranty service contract |
| Waiting period | Most contracts start real coverage 15-30 days after purchase, specifically to reduce claims on problems that existed at signing |
| Add-ons and riders | Septic systems, well pumps, pools/spas, and second refrigerators are commonly optional add-ons, not base coverage, on most sample plans |
Before you file a claim
A claim moves faster, and gets denied less often, when you can show the item was maintained and the failure looks like ordinary wear rather than neglect or a pre-existing issue.
- Photograph the model and serial label on the system or appliance now, before anything breaks.
- Keep a basic maintenance record—filter changes, water heater flushes, annual HVAC service—matched to what your specific contract asks for.
- Read the claim-filing section of your contract before you call: most warranty companies require you to contact them first and let their assigned contractor diagnose the issue, not call your own repair company and submit the invoice after the fact.
- If a claim is denied, ask for the specific contract clause cited. “Pre-existing condition” and “lack of maintenance” denials are the two most contestable if you actually have maintenance records.
Related guides
Frequently asked questions
Does a home warranty cover HVAC systems?
Yes, in almost every home warranty plan, HVAC (furnace, central AC, ductwork components) is core coverage. It still comes with a per-system dollar cap—commonly around $5,000 on major providers’ sample contracts—and claims tied to lack of maintenance, mismatched equipment size, or pre-existing problems are typically denied.
Does a home warranty cover pre-existing conditions?
No. Nearly every home warranty contract excludes a system or appliance that was already broken, failing, or improperly installed before the plan’s coverage start date and any waiting period, even if you didn’t know about the problem. Some contracts add a short waiting period (often 15-30 days) before any claim is eligible at all.
Does a home warranty cover code violations?
No. If a covered system fails and the repair or replacement requires bringing wiring, venting, or plumbing up to current code, most contracts exclude that permit and code-upgrade cost, or cap it separately and low (often a few hundred dollars). You typically pay the code-upgrade difference out of pocket.
Are kitchen appliances covered by a home warranty?
Only on plans built for it. Many providers put refrigerators, ranges, ovens, dishwashers, washers, and dryers in a separate appliance tier or add-on rather than the base systems plan—check the specific plan summary, not just the provider’s homepage, before assuming an appliance is included.
Does a home warranty cover improper installation?
No. A breakdown caused by improper installation, incorrect sizing, unauthorized modification, or a repair done outside the warranty company’s approved contractors is a standard exclusion, and it’s one of the most common reasons homeowners are surprised by a denied claim.