A fire that starts because of bad electrical installation is one of the most dangerous and expensive outcomes in construction. When it happens, the first question everyone asks is, “Who is responsible?” The answer is never simple, but it follows a clear logic based on what each person involved did or failed to do. Understanding that logic is the difference between paying out of pocket and getting compensated.

The person most directly on the hook is the electrician who did the actual work. If a licensed electrician installs wiring that is undersized for the load, leaves connections loose, or fails to secure conduit properly, and that mistake leads to a fire, the electrician is legally liable for the damage. The legal basis is simple: they had a duty to perform their job with reasonable skill and care, they breached that duty, and the breach directly caused the fire. This is what courts call negligence, but you can think of it as failing to do what any competent electrician would have done. The same goes for plumbers who cause water damage from burst pipes—poor soldering, wrong pipe material, or missed pressure tests all count as negligence.

But liability does not stop with the tradesperson. The general contractor who hired the electrician can also be held responsible. Even if the contractor did not touch a single wire, the law says they have a duty to supervise the worksite and make sure all subcontractors do their work correctly. If a contractor hires an unlicensed electrician, ignores warnings about bad work, or fails to schedule required inspections, that contractor shares the blame. In many states and provinces, the contractor is also liable for any harm caused by subcontractors under something called vicarious liability. It means the contractor steps into the shoes of the electrician and has to pay the victim, even if the contractor was careful. After paying, the contractor can then sue the electrician to recover the money, but the victim does not have to wait for that.

What about the building owner or homeowner? They are usually not liable for a fire caused by an electrician they hired, as long as they did not know the work was dangerous. However, if the owner hired someone without verifying their license or insurance, or if the owner asked the electrician to cut corners to save money, then the owner can be pulled into the case. Also, if the owner had previous knowledge of a problem—for instance, lights flickering or breakers tripping—and did nothing, a court could find the owner partly responsible for failing to address a known hazard. In commercial construction, property owners who manage their own renovations often take on the role of general contractor, and then they assume all the duties and risks that come with it.

Insurance changes the picture in a major way. Most licensed electricians carry general liability insurance, and that policy is supposed to pay for damage from accidents like fires. But insurance companies look for ways to deny claims. If the electrician was working without a permit, or if the work was not up to code, the insurer might argue that the policy does not cover illegal or unpermitted work. This is one of the biggest traps for homeowners. When they let an electrician do work without pulling a permit, they not only risk a fine—they risk being left without coverage if something goes wrong. The homeowner’s own property insurance may cover the fire damage, but then the insurance company will sue the electrician to get its money back, a process called subrogation. That lawsuit can drag on for years, and the homeowner ends up dealing with premium hikes and deductibles.

Another layer comes from indemnity clauses in contracts. Construction agreements often include language where a subcontractor agrees to hold the contractor harmless for any losses caused by the subcontractor’s work. Courts usually enforce these clauses, so if the electrician is the one at fault, the electrician has to pay back the contractor’s insurance company or legal costs. If the electrician has no insurance or money, the contractor or homeowner may be stuck. This is why every construction professional should require proof of insurance from every subcontractor before allowing them on site, and why homeowners should ask for copies of that proof.

There is also the possibility of a product defect. If the fire was caused by a faulty breaker, wire, or outlet, the manufacturer of that product may be liable. This falls under product liability law, and it applies even if the electrician installed the item perfectly. In those cases, the electrician and contractor may be off the hook, but the manufacturer has to pay for the fire. However, proving that a product was defective—rather than just poorly installed—requires expert analysis and often a lawsuit against a large company with deep pockets.

In the end, who pays for a fire from faulty electrical work depends on three things: who made the mistake, who had a duty to prevent it, and who has insurance that actually covers the incident. The safest route for everyone is to hire licensed tradespeople, pull permits, schedule inspections, and get everything in writing. When corners are cut, the fire is not the only thing that burns—your finances burn too.