Warranties on Home Systems: What They Usually Cover

The word warranty gets stretched to cover at least four different things around a house. There is the manufacturer's warranty on the equipment, the installer's warranty on the work, the extended coverage someone may have offered at the sale and the home warranty contract a seller sometimes includes at closing. They come from different companies, cover different failures and follow different rules.

Knowing which is which before something breaks is far less stressful than sorting it out with a technician waiting in the basement. What follows is a general overview. Your actual coverage is whatever your specific documents say, and consumer protection rules vary by state.

Manufacturer warranties: usually parts

The company that built your furnace, heat pump, water heater or roofing materials typically offers a warranty on its product. For mechanical equipment, that warranty often covers replacement parts that fail because of a defect. It frequently does not cover the labor to diagnose the problem and install the new part, and it may not cover refrigerant, shipping or trip charges.

When a covered part fails, the claim usually runs through a contractor. The technician diagnoses the failure, confirms the model and serial number, orders the part under warranty and bills you for labor unless another warranty picks that up. Some manufacturers want the failed part sent back, so ask the technician to handle that paperwork. The install date and registration status often decide which set of terms applies.

Terms vary widely by manufacturer and product line. When you read the booklet, look for:

• How long coverage lasts, and whether major components like a heat exchanger or compressor have separate terms
• Whether the product had to be registered within a set time to receive full coverage
• Whether coverage transfers to the next owner if you sell
• What maintenance the manufacturer expects, and whether records are required

Roofing material warranties add a twist. Many are prorated, meaning the value of coverage shrinks as the roof ages, and many depend on the materials being installed according to the manufacturer's instructions. That makes the installer's work part of the warranty picture, too.

Installer and workmanship warranties

The contractor who installed the equipment may offer a separate warranty on labor and workmanship. This covers problems caused by how the job was done: a loose connection, poorly sealed roof flashing, a condensate drain pitched the wrong way. It is often shorter than the manufacturer's parts coverage, though some companies offer longer labor coverage as part of their pitch or as part of a maintenance agreement.

Ask whether the labor warranty requires you to call the installer first. Some do, and a repair by a different company can end that coverage.

A workmanship warranty is only as useful as the company standing behind it. Keep the installer's name, contact details and invoice with the equipment paperwork. If the company closes or changes owners, find out whether anyone still honors its commitments, and get that answer in writing.

Extended warranties and service contracts

Extended warranties go by different names, and some are technically service contracts rather than warranties. They may be sold by the manufacturer, the installer or a third party, often right at the time of installation. Some extend parts coverage; others add labor.

Before buying one, compare what it adds against what you already have. Ask who handles claims, if a particular contractor must do the work, whether there is a deductible or service fee per claim and what conditions apply. A contract that duplicates coverage you already hold adds cost without adding much.

Home warranty contracts are not insurance

A home warranty is a service contract, usually renewed yearly, that covers repair or replacement of certain systems and appliances when they fail from normal wear. You typically pay an annual fee plus a service fee each time a technician is sent, and the warranty company usually chooses the contractor. Coverage caps, exclusions for pre-existing conditions and limits on what the company will pay for are common, so the contract language deserves a careful read.

Homeowners insurance is a different product. It generally covers sudden damage from events like fire, wind or a burst pipe, not equipment that simply wears out. A roof damaged in a hailstorm may be an insurance question; a roof that is just old usually is not. Neither product replaces the other, and neither replaces regular maintenance. Rules for both vary by state, and the wording of your own policy or contract controls.

If a home warranty came with a house you bought, find the contract now and note the renewal date, the service fee and the claims phone number. It is easy to forget one exists until something breaks, and just as easy to discover it lapsed the month before.

What quietly limits or voids coverage

Warranty claims get turned down for reasons that often have nothing to do with the part itself. Common ones include:

• Missing the product registration deadline
• No records of the maintenance the warranty requires
• Repairs or installation by someone without the license the job required
• Parts or materials the manufacturer does not approve
• Damage from an excluded cause, like flooding, power surges or pests
• Moving or modifying equipment outside the instructions

Most of these are easy to prevent. Register new equipment the week it goes in, keep every service invoice and hire licensed pros for gas, electrical and refrigerant work, which state and local rules often require anyway. The electrical panel in particular is not a place for do-it-yourself troubleshooting, warranty or not.

A denied claim is not always the last word. Ask for the reason in writing, compare it with your own documents and ask the installer for help if the denial seems to rest on a mix-up about dates or maintenance records.

Questions to ask and papers to keep

When new equipment or a new roof goes in, ask these before the installer leaves:

• Who registers the equipment, you or me, and by when?
• Will you send me a copy of the registration confirmation?
• What does the manufacturer cover, and for how long?
• What labor warranty do you offer, and what does it include?
• What maintenance keeps the coverage in force?
• Does coverage transfer if I sell the house?
• Who do I call first if something fails?

Then build a simple warranty file for each major system. Keep the manufacturer's terms, proof of registration, the installer's invoice showing the install date and the model and serial numbers, any extended warranty or service contract and every maintenance receipt. Add a photo of the equipment's data plate, and the next time someone asks for a serial number you will not need a flashlight and a trip to the crawlspace.

A little homework now

Warranties are easier to use when you understand them before you need them. HomeIsSecure's homeowner guides on heating, cooling, roofing and water heaters can help you stay on top of the maintenance many warranties ask for.