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Some electrical problems can wait for a convenient time. Others are warning signs of a wiring problem that should be looked at soon. The National Fire Protection Association's electrical safety tip sheet says to call an electrician (or your landlord) if you have:

• Fuses that blow or circuit breakers that trip again and again
• A tingling feeling when you touch an electrical appliance
• Wall outlets that are discolored or warm
• A burning or rubbery smell coming from an appliance
• Lights that flicker or dim
• Sparks from an outlet

Other common reasons to call include adding outlets so you can stop relying on extension cords, replacing an old or undersized panel, wiring for a new appliance or EV charger, and installing a backup generator.

If an outlet sparks, smells like burning, or feels hot, stop using it and switch off the breaker for that circuit if you can do so safely. If you see smoke or fire, get everyone out and call 911.

The electrical panel feeds every circuit in your home. An older or crowded panel can limit what you add, from an EV charger to a heat pump.

Signs it may be time to talk with an electrician about a panel upgrade:

• The home still has a fuse box, or the panel is decades old.
• Breakers trip often when several appliances run at once.
• There are no open spaces left for new circuits.
• You see rust, scorch marks, or melted plastic, or hear buzzing from the panel.
• You plan to add a large load, such as an EV charger, heat pump, electric range, hot tub, or a remodeled kitchen.

Before recommending an upgrade, an electrician can do a load calculation. It adds up what your home already draws and what you plan to add, and shows whether the current panel and service have room. Sometimes a smaller change, like adding a circuit or moving loads, is enough. Ask the company to explain which option fits your plans and why.

Most states license electricians. Ask the company for its license number, then check it yourself on your state's licensing board website. Search for your state's name plus "electrical license lookup" to find it.

The Federal Trade Commission's home improvement guide lists steps that fit electrical work well:

• Get more than one written estimate that spells out the work, materials, and timeline.
• Check the license through your state or county, and ask for proof of insurance.
• Make sure the contract lists the company's name, address, phone number, and license number.
• Be wary if a company asks you to get the permit yourself or pushes for a decision on the spot.

For bigger jobs, ask who pulls the permit, whether the work will be inspected, and what warranty covers the parts and the labor.

When you call through Swupi, you speak with an independent local company, and you agree on the scope and timing with them directly. See how Swupi works.

Details vary by home and company, but most larger electrical jobs follow similar steps.

1. Site visit: the electrician looks at your panel, wiring, and the spots where new circuits or equipment will go, and checks whether the panel has room for the added load.
2. Written quote: you get the scope, parts, permit details, and timeline in writing. Compare at least two.
3. Permit: This Old House notes that most panel upgrades require permits. EV charger installs often need one too.
4. Installation: power is shut off while the work is done. For an EV charger, the job usually means mounting the charger, adding a breaker, and running wire and conduit from the panel. How much room the panel has and how far the charger sits from it shape how big the job is.
5. Inspection and paperwork: a local inspector may check the work. Keep the permit, inspection, and warranty papers together.

Ask the company how long the power will be off and when the inspection will happen, so you can plan around it.

The NFPA's electrical safety tips include simple habits most households can follow:

• Plug only one heat-producing appliance, such as a space heater, toaster, or coffee maker, into an outlet at a time.
• Plug major appliances, like refrigerators, washers, dryers, and stoves, directly into a wall outlet, not an extension cord or plug strip.
• Treat extension cords as temporary. Have an electrician add outlets where you need them.
• Keep cords out of doorways and from under rugs.
• Test AFCIs and GFCIs once a month to make sure they work.
• Use light bulbs that match the wattage listed on the lamp or fixture.
• Have the home inspected when you buy or remodel.

The NFPA also says GFCIs belong in bathrooms, kitchens, garages, and basements, and that all outdoor outlets should have GFCI protection. If yours do not, ask an electrician to add them.

Planning cameras, a video doorbell, or an alarm? See our home security guide. Adding a heat pump or new air conditioner often needs electrical work too, so compare notes with our HVAC guide.