What your warranty actually covers

On any single building component (a boiler, a window, a roof, a kitchen appliance) you may hold up to four distinct warranties simultaneously, each covering something different and each with a different claim path:

• Store warranty: defects on arrival (EEA minimum two years).
• Manufacturer’s warranty: material and manufacturing defects in the product itself (typically 2–10+ years).
• Product warranty: specific performance claims like “watertight for fifteen years” or “colour-fast for ten years” (often the longest but narrowest scope).
• Workmanship warranty: quality of installation rather than the product, from the contractor who did the work (typically 1–5 years).

Before paying for any repair, check which of the four might still apply. The most expensive homeowner mistakes in this area are not hiring the wrong contractor; they are paying for repairs the manufacturer or the installer should have covered for free.

The repair you didn’t have to pay for

The version that costs the most is the one where the repair was already covered. A window seal fails about three years into the life of a new house, and the homeowner calls a glazier, pays four hundred and fifty euros, and moves on. A year later, while filing something else, they come across the original installation paperwork and discover that the window carried a ten-year manufacturer’s warranty that specifically covered this exact type of seal failure. The repair they paid four hundred and fifty euros for would have been free. The warranty was still active at the time of the failure. No one told them, and they didn’t know enough to check.

This is common, and it is common for a reason that is not the homeowner’s fault. The European warranty landscape around building components is layered: a single component can be covered simultaneously by several different warranties from several different providers, each with different scopes, different durations, and different people to contact when something fails. Homeowners don’t know this because nobody explains it to them, and the result is that warranty-covered work gets paid for out of pocket at rates that bear no relationship to what the homeowner owed.

The four warranty types, and why they matter separately

There are four distinct warranty types that can apply to a single building component. They don’t replace each other; they stack, and on any given component you may hold several of them at once.

The first is the store or retailer warranty, provided by the shop or supplier you bought the component from. It covers the product as sold: defective on arrival, not as described, or failing to work as advertised. In the EEA, consumers have a minimum two-year legal guarantee on goods, and some retailers extend it further. The claim path is straightforward: proof of purchase goes back to the retailer, and the retailer’s remedy is repair, replacement, or refund — often in that order under EEA consumer law, with the choice depending on cost and feasibility. The critical requirement is that you keep the proof of purchase, which is boring and which most homeowners don’t do.

The second is the manufacturer’s warranty, provided by the company that made the product. It covers material and manufacturing defects in the product itself: the compressor fails, the glass delaminates, the coating peels, the motor burns out. Typical durations range from two years to more than ten, depending on the product category and the manufacturer. The claim path usually runs through the manufacturer’s service network, not through the retailer. The critical requirements are often hidden in the fine print: professional installation may be required, product registration may be required, and evidence of proper maintenance may be required. A heat pump warranty that requires annual professional servicing is void the first time the servicing is skipped, and a homeowner who skips the servicing to save one hundred and fifty euros in a year where nothing went wrong will discover the voided warranty the year something does.

The third is the product warranty, which may be provided by the manufacturer or by a third party, and which covers specific performance characteristics rather than general function. “Watertight for fifteen years.” “Colour-fast for ten years.” “Thermal performance maintained for twenty years.” Product warranties are often the longest in duration but the narrowest in scope. They cover one particular performance claim, not general failure, and they tend to be heavily conditional on installation method, environmental exposure, and maintenance practice. A roof membrane warranty can be void because the installer used the wrong adhesive at a joint, even if the rest of the installation was correct, and the homeowner will not discover this until the claim is rejected.

The fourth is the workmanship warranty, provided by the contractor who did the installation. It covers the quality of the work rather than the quality of the materials: leaks at joints, incorrect fitting, poor finish, inadequate preparation. Typical durations range from one to five years depending on the trade and the jurisdiction. The critical distinction is that a workmanship warranty covers failures caused by how the work was done, not by what was installed. A good product installed badly is a workmanship claim. A bad product installed well is a product or manufacturer claim. Sorting the two apart is often the difference between a repair someone else pays for and a repair you pay for.

Why the overlap matters financially

On a single new boiler, a homeowner may simultaneously hold a two-year store warranty covering retail defects, a five-year manufacturer’s warranty covering manufacturing defects, a ten-year product warranty on the heat exchanger specifically, and a two-year workmanship warranty from the installer covering the quality of the installation. If the boiler fails in year three, the store warranty has expired but three of the four remaining protections may still apply, and which one depends on what failed:

• A manufacturing defect routes to the manufacturer’s warranty.
• A failure in the heat exchanger routes to the product warranty even when the general manufacturer’s warranty has lapsed.
• A failure in the pipework connection rather than the boiler itself routes to the installer under the workmanship warranty.

The homeowner who doesn’t know any of this pays for the repair out of pocket and moves on. The homeowner who does know pays nothing.

What to do before a warranty expires

For every warranty you hold, set a calendar reminder ninety days before it expires. The reminder should trigger three actions. Inspect the component for any early signs of failure: leaks, discolouration, unusual noise, reduced performance. Document the current condition with dated photos and notes, so that if a problem emerges later you have evidence of when it began. And file any pending claims before the window closes, because a warranty claim filed one day after expiry is worth exactly nothing regardless of how valid the underlying claim is.

The ninety-day lead time matters. Some warranty claims require inspection, documentation, and sometimes a contractor’s report before they can be filed, and filing a complex claim two days before expiry usually means missing the deadline.

When something fails, where to start

When a component fails, the first diagnostic question is about the nature of the defect, because the answer determines which warranty you’re claiming against and which party you’re contacting. A defect in the product itself (material failure, performance below specification, premature wear) routes the claim to the manufacturer or the retailer. A defect in the installation (leaks at joints, incorrect fitting, poor finish) routes to the contractor who did the work. Normal wear, user damage, and skipped maintenance fall outside all of the warranties and become a normal out-of-pocket expense. When the cause is unclear, an independent inspection before you start the claim is worth the cost: it determines the likely cause and strengthens your position regardless of which party you end up negotiating with.

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Related guides

• What to do when something breaks in your house: warranties are step 3 in the fix flow.
• Repair, replace, or wait: the annual cost method: when the warranty check comes back empty.
• Is it worth claiming on home insurance for small damage: the other coverage worth checking before paying out of pocket.
• The 4P rule: how to tell if a repair is urgent: urgency affects how quickly you need to file the claim.

Glossary terms used in this guide

• Glossary: Preventive maintenance: the servicing conditions that keep warranties valid.
• Glossary: Component: the building element the warranty attaches to.
• Glossary: Corrective maintenance: when warranties run out, this is what remains.

Worked example: Jussi in Helsinki

Jussi has a kitchen tap that has started dripping at the base of the spout. The kitchen renovation was four years ago. He calls a plumber, gets a EUR 220 repair quote, and is about to confirm.

He pauses to check warranty coverage first. The original installation paperwork shows three things he had forgotten:

• The tap brand is Hansgrohe, which carries a 5-year manufacturer’s warranty on functional parts.
• The kitchen contractor offered a 5-year workmanship warranty, still in date by 11 months.
• The store he bought from extended a 3-year guarantee on appliance plumbing fixtures.

Jussi calls Hansgrohe first. They confirm the cartridge is covered under the manufacturer’s warranty and direct him to an authorised installer who handles the claim. The repair, including the cartridge, the labour, and the visit, is free. Jussi’s only cost is 20 minutes of phone time and the energy of finding the original paperwork.

Without the warranty check, Jussi pays EUR 220 for a repair that was already covered. The pattern is not unusual; it is the most common form of homeowner overpayment because warranties are easy to forget and contractors have no incentive to remind you they exist.

The record that makes all of this possible

None of the above works without documentation. For every major component in a home, you should know (or should be able to look up) what warranties exist, when they expire, what conditions must be met to keep them valid, and where the original paperwork is. This is the kind of record that accumulates silently over years and becomes valuable at several specific moments: when something fails, when you sell the property and a buyer wants to see the history, when your insurer renews your policy and asks about component ages, and when the question “was this installed by a certified professional” comes up in any form.

Building the record one component at a time is tedious and uninteresting for about two years, and then the first warranty claim it enables pays for the effort several times over. This is exactly the kind of thing a homeowner should not have to maintain manually, and it is exactly the kind of thing AppKeep is designed to accumulate as a side effect of normal use.