The mechanical systems and built-in appliances the plan lists, when they fail from normal wear rather than from an event, neglect or a defect that was there before coverage started, and only up to a stated cap per item, with a service call fee due on every visit.
Every plan is a list. The contract names the covered items, the dollar cap on each one, the exclusions, and the waiting period, and none of that is standard across companies. What follows is what the ordinary single-family plan covers, what almost every plan leaves out, and how a claim runs, so the contract in front of you can be read against it. Your own contract is the only thing that decides a claim.
The systems on a standard plan
The base tier is usually systems only: heating and cooling, ductwork, the electrical system, the plumbing system and its stoppages, and the water heater. That is the half most people buy a plan for, because it holds the failures that cost the most and give the least warning.
Coverage stops at the boundary of the machine. A covered air conditioner means the equipment: the compressor, the coil, the fan motor, the thermostat. It does not mean the pad it sits on, the disconnect the county wants replaced, or the drywall opened to reach anything. Those are access, disposal and code items, and each plan handles them in its own clause.
The appliances, and the ones that are extra
The systems-plus-appliances tier adds the built-in kitchen: the range or cooktop, the oven, the dishwasher, the built-in microwave, the garbage disposal and the exhaust fan. Ceiling fans, garage door openers and doorbells appear on most plans at a low cap.
The refrigerator, and the washer and dryer, are the ones to check line by line. Some plans include them at the top tier, many sell them as an add-on, and several cover the refrigerator but not the ice maker or the water dispenser in its door. Pool and spa equipment, septic, a well pump, a second refrigerator, a stand-alone freezer and roof leak coverage are add-ons on essentially every plan.
What is commonly excluded
- Pre-existing conditions: anything already failing, already noisy, or written up in the inspection report when coverage started. This is the exclusion behind most denials.
- Improper installation, improper modification, an earlier repair done wrong, and builder or manufacturer defects.
- Lack of maintenance. A condenser choked with dust or a system with no service record is the case a company declines fastest.
- The roof, unless roof leak coverage is added, and then only leaks and not a worn-out roof.
- Pools, spas, septic systems and well pumps unless bought as add-ons.
- Code upgrades and permits needed to complete a repair, unless the plan carries a code allowance.
- Cosmetic defects, and the finish work after a repair: drywall, tile, paint and landscaping put back.
- Anything an insurance policy covers: fire, storm, flood, theft, and the water damage that follows a failed pipe.
The two numbers that decide what coverage is worth
The service call fee is due on every dispatch, commonly $75 to $150, chosen when the plan is bought, and charged per trade rather than per visit, so a plumbing failure and an electrical failure in the same week are two fees. It is due even when the claim is denied, because it pays for the diagnosis.
The cap is the harder one. Heating and cooling caps in the range of $1,500 to $3,000 are common, and a full system replacement commonly costs more than that, so the plan pays the cap and the owner pays the difference. Some caps are per item, some are aggregate for the contract year. Compare caps and fees before comparing premiums; the premium is the least informative number on the page.
How a covered claim actually runs
Call the company first, not a contractor. Every plan requires the company to dispatch from its own network, and a repair arranged independently is almost never reimbursed even when the item was covered. The company assigns a contractor, the contractor diagnoses and reports back, and the company authorizes the repair up to the cap.
You do not choose the technician, and you cannot insist on a particular brand of replacement; contracts specify comparable rather than identical. Where the repair exceeds the cap, most plans offer either the cap toward the work or a cash payout in lieu at the company's contractor rate rather than retail. Keep the diagnostic report: it is what an appeal runs on.
Questions people ask
Does a home warranty cover the air conditioner?
Yes on almost every plan, when the failure is from normal wear, up to the plan's heating and cooling cap. What it does not cover is a unit that was already failing when coverage began, one with no maintenance history, or the full price of a replacement above the cap.
Does a home warranty cover appliances that are old?
Age alone is not an exclusion on most plans, and contracts commonly say they do not deny for age or lack of maintenance records alone. What they do deny is a specific pre-existing failure, so an appliance already broken on day one is not covered by buying a plan on day two.
Is there a waiting period before coverage starts?
Usually about thirty days from purchase, unless the plan came with a real estate transaction, in which case coverage generally begins at closing. The waiting period exists to stop somebody buying a plan the week the heating stops.