Ask this question on an electrician forum and you will get answers from thirty days to lifetime, argued with equal confidence. The spread is not because half the trade is wrong. It is because "my work" means different things on different tickets. The electrician offering lifetime coverage is thinking about a service upgrade he built start to finish. The one offering ninety days is thinking about the flickering-lights call in a house wired before he was born. Both are pricing the same risk correctly and describing it badly. This guide is about setting terms that survive contact with a real callback: what length to put on installs, what length to put on repairs, where the device manufacturer's coverage ends and yours begins, and how to write it down so the callback conversation is a reading, not a negotiation.
The short answer: one year on installs, less on repairs
For work you built new, a one-year workmanship warranty is the defensible default. That covers a new circuit, a panel change, a service upgrade, a subpanel, an EV charger circuit, or a fixture you supplied and installed. A year is long enough for a bad termination, a marginal connection, or an install fault to surface through a full cycle of seasons and load, and short enough that you are not underwriting decades of use, remodels, and whatever the homeowner plugs in later. Some shops go to two years on large installs to read as confident against competing bids, and on work you engineered end to end that is a rational bet, because a properly terminated circuit that holds for a year rarely fails from workmanship afterward.
For troubleshooting and repair on an existing system, thirty to ninety days on the specific repair is the honest term. You replaced a failed receptacle or spliced a burned junction. What you can stand behind is that the part you installed and the connections you made will hold. What you cannot stand behind is the rest of a system you did not build and were paid one hour to touch. The same logic drives warranty terms in the other trades, and it is why the answer to this question is a split rather than a number: the plumbing version of this guide lands in the same place for the same reason, in how long a plumbing warranty should be. The number is the easy part. The boundary around what the number covers is where the money is, and the rest of this guide is about the boundary.
Warranty the repair you made, not the system you inherited
Here is the callback that teaches every service electrician this lesson once. You replace a dead receptacle in the dining room. Two weeks later the customer calls: the hallway lights are flickering, and you were just here. In the customer's mind, an electrician touched the house, so the house's electrical behavior is now the electrician's responsibility. If your warranty was a verbal "I stand behind my work," you now get to argue about what "my work" meant with someone holding your invoice, and whatever goodwill the first visit earned is being spent in the hallway.
The protection is scope, written down at the point of sale. The warranty covers the named repair at the named location: the receptacle you replaced, say, or the splice you remade. It does not cover the panel you did not open, and it does not cover symptoms elsewhere in a system whose condition you never assessed. That is not fine print to hide behind. It is a fair description of what you were hired to do, and it is fairer to say it before the work than after the callback. The invoice is where the scoping happens, because the invoice is the document the customer digs out when something else fails. A line that reads "electrical repair, $240" warranties the whole house in the customer's imagination. A line that names the repair, the location, and the term warranties exactly what you did. What belongs on that document is its own subject, covered in what to put on an electrical invoice.
Scoping cuts the other way too, and saying so builds trust. If the flickering hallway turns out to be the same circuit you repaired, and the fault traces to a termination you made, that is your workmanship and your truck roll, even though the symptom moved. The scope is the repair you made, wherever its consequences show up. What the scope excludes is the rest of the system, not the consequences of your own work.
The three warranties on every electrical job
The word "warranty" on an electrical job bundles three different promises from three different parties, and most doorstep arguments come from letting the customer hear them as one. The first is your workmanship warranty: the terminations you made, the wire you pulled, the devices you mounted, the panel you dressed. That one is yours, for the term you set. The second is the device manufacturer's warranty. Residential circuit breakers in particular can carry long device warranties, in some product lines a limited lifetime term against defects in material and workmanship.1 That coverage belongs to the device, not to your labor. When a breaker fails from a genuine defect, the manufacturer's obligation is the replacement device. The hour of diagnosis that identified it and the visit to swap it are labor, and once your own term has run out, that labor is billable even though the part is free.
Read the fine print on those device warranties and you find a detail worth repeating to your own crew: coverage is conditioned on installation that complies with the National Electrical Code.1 A device landed on a double-tapped lug or wired outside its listing can void the manufacturer's coverage along with everything else. Your workmanship and the device warranty are not independent. Sloppy installation can burn both at once, which is one more reason the clean install is the cheapest warranty policy you can buy.
The third promise is the one on customer-supplied fixtures, and the answer is that there is not one, which is exactly what the quote needs to say. When the customer hands you a ceiling fan or a box of online-ordered pendants, you can warranty your installation of it: the box is rated for the load and the connections are made right. You cannot warranty the fixture, because its warranty belongs to whoever bought it, on whatever terms the seller offered. A quote line that reads "customer-supplied fixture, installation only, fixture warranty per its manufacturer" costs you five seconds and removes the entire category of callback where a cheap fan dies in month four and the customer expects a free replacement from the person who installed it. Handling that line item well starts before the warranty question, back when the job is being written up, which is covered in how to write an electrical estimate.
A failed inspection is not a warranty claim
Permitted work adds a wrinkle the other trades mostly do not have: an inspector gets a vote on whether your work is finished. It is worth being precise about what a correction notice is, because it is neither free warranty work nor billable extra work. If the inspector red-tags something on the job you were hired to do, fixing it is not a warranty claim against you and not a change order against the customer. It is completing the job. The price you quoted was for work that passes inspection, so the correction trip is part of earning the price, no matter how the paperwork words it. Treating a correction as a warranty event confuses the customer and shortchanges you both: the customer thinks the work failed, when the work is not yet done.
The separate case is the one to put in writing before you open anything. When an inspector, or you, standing in front of an open panel, flags a pre-existing condition that was there before you arrived, that is new work. A corroded neutral bar or cloth wiring feeding the circuit you extended is not covered by your warranty and was never in your quoted price. The move is to write it up as separate work and let the customer decide. Where operators get hurt is silence, because the customer who later learns about the condition assumes the electrician who was just in the panel either caused it or should have fixed it. A sentence on the invoice noting the observed condition and that it was excluded from this job's scope is the cheapest liability protection in the trade.
When a callback is free, and when it is billable
Every callback lands in one of three buckets, and the time to sort it is before the truck rolls, from the paperwork, not on the doorstep under pressure. The first bucket is workmanship: the fault traces to something you did. A termination you left loose, a splice that failed, polarity you reversed, a breaker you installed on a circuit it was never rated for. Inside your term, that visit is free and fast, because a no-charge fix of your own error is the cheapest reputation purchase available. The second bucket is device failure: the part died of a defect, not of your installation. The manufacturer covers the device on its terms, your labor follows your term, and if your term has lapsed, the visit is billable at your normal rate even when the replacement part costs nothing.
The third bucket is the system behaving as designed, and electrical work has a version of this the customer will never guess on their own: the nuisance-trip call. An AFCI or GFCI that trips repeatedly is, more often than not, doing its job, reacting to a worn appliance or a genuine fault somewhere downstream. The customer experiences it as "the new breaker you put in keeps breaking." Diagnosing what the breaker is objecting to is troubleshooting, and it is billable work. The exception that keeps you honest: if the tripping traces to how you wired it, a shared neutral you landed on a standard breaker, a load you misjudged, then it was never a nuisance trip at all. It is bucket one, and the diagnosis charge disappears. Sorting these two cases fairly, and being seen to sort them fairly, is worth more repeat business than any warranty length you could advertise.
What makes all three buckets workable is a stated price for the billable ones. A callback that turns out to be billable needs a number the customer has already seen, which is the same argument for a stated diagnostic or service charge made in should electricians charge for quotes. The warranty tells the customer when a visit is free. The service charge tells them what it costs when it is not. Publish both and the doorstep conversation is arithmetic instead of debate.
Put the warranty term on the quote and the invoice
Every dispute described above has the same root: the customer and the electrician remember the promise differently, and nothing in writing settles it. The fix costs four sentences on the quote. State the workmanship term for the installed work. State the shorter term for repairs, scoped to the named repair. Note that devices and fixtures carry their manufacturers' warranties, and that labor to act on a device claim after your term is billed at your standard rate. Note that customer-supplied fixtures are installation-only. A customer who approves that quote has agreed to the boundaries while everyone is calm, which is the only time boundaries can be agreed to.
Then carry the same terms onto the invoice, because the invoice is the paper that survives. The quote gets approved and filed away. The invoice gets retrieved in year three when a breaker starts tripping, and it either answers the question or invites the call. An invoice that names the work, the location, the term, and the device coverage turns the year-three call into a self-service lookup. This is the same discipline that gets invoices paid promptly in the first place, and it costs nothing but a saved block of wording you reuse on every job.
A worked example: a panel change and two callbacks
The numbers below are illustrative, chosen to show where the boundaries fall. Use your own rates and your own market's terms.
You replace a corroded 100-amp panel with a new 200-amp service: $3,400, roughly $1,500 in materials and permit and $1,900 in labor. The quote states a one-year workmanship warranty on the installation, notes the breakers carry the manufacturer's device warranty, and states your $180 diagnostic charge for visits outside warranty scope. The job passes inspection, with one correction: the inspector wants an added ground clamp, and you install it on the correction trip at no charge, because the price was for a passing job. That trip was never warranty work. It was the job.
Month three, the customer calls: a warm smell at the panel. You find a feeder lug you torqued badly, seating the conductor poorly under load. That is bucket one, squarely inside your term. The visit is free. It costs you about an hour and a half of loaded labor: the median electrician wage is about $30 per hour, and with payroll burden and the truck the trip runs you maybe $130, illustratively, a cost you already priced into the $1,900 because some percentage of installs always calls back.3 The customer tells the story as "he came same day and would not take a dime," which is the version you want told.
Year four, the same customer calls: one AFCI breaker trips every few days. Your one-year term is three years gone. On site, the breaker itself tests fine, and the tripping traces to a failing compressor in a garage freezer plugged into that circuit. That is bucket three: the device is doing its job, nothing you installed has failed, and the $180 diagnostic charge from the original quote applies. Had the breaker instead been genuinely defective, the manufacturer's device warranty would supply the replacement breaker, and the same $180 would still apply to the diagnosis and swap, because the maker covers devices, not labor.1 Either way the customer heard the number four years ago on a quote they approved. The warranty term did not settle these calls. The written boundaries did.
Put the warranty term on the quote, not in your memory
We built EosLog's quote generator so an electrician can state the install term, the repair term, and the device-warranty boundary on the same page the customer approves, then carry the wording onto the invoice. When the callback comes, you read the terms back instead of negotiating them in a hallway.
Try the free electrical quote generator
No account required. You can also create a free EosLog account to save your warranty wording and reuse it on every quote, or see the plans first.
Sources and further reading
- Eaton, Residential circuit breaker warranty (limited lifetime warranty terms on certain residential breaker and loadcenter lines against defects in material and workmanship, conditioned on installation in accordance with the National Electrical Code). Device warranty terms vary by manufacturer and product line; confirm the terms of the devices you install.
- Federal Trade Commission, A Businessperson's Guide to Federal Warranty Law (Magnuson-Moss Warranty Act; rules for written warranties offered to consumers, including the requirement that written warranty terms be available before purchase).
- U.S. Bureau of Labor Statistics, Occupational Outlook Handbook, Electricians (median annual wage $62,350 in May 2024, about $30 per hour; used here as an employee-wage baseline for callback cost, not a billed rate).
This guide reflects general US electrical-contracting practice as of 2026 and is not legal advice. Warranty norms, licensing, permit and inspection procedures, and any statutory warranty minimums vary by state and municipality, and the figures in the worked example are illustrative. Confirm your own costs, your device manufacturers' warranty terms, and your state's rules before setting a warranty policy for your business.