Dad has agreed to better lighting on the stairs. Good. Do not celebrate so hard that you turn a lightbulb problem into a rewiring project.

Local option: New Plan Care gives families in the St. Louis area in-home help so a parent can stay home: companionship, help with bathing and dressing, meals, and overnight care. Call (314) 405-0887.

The decision line is fairly clean. Replacing a compatible bulb, moving a lamp, opening a blind or adding a battery-powered light can be a family job. Adding a fixture, moving a switch, installing an outlet or opening a wall is electrical work. That is where you stop improvising and start calling electricians.

First, find the actual dark spot

Walk the route Dad uses, preferably while he walks it. Check the porch, entry, top landing, bottom landing, each turn and the path to the bathroom. Stand where he stands before reaching for a switch. A bright fixture is not much help when the switch is across the dark room.

Look for four things: a burned-out bulb, a fixture blocked by a shade or furniture, a switch that cannot be reached before entering the dark area, and shadows that hide the edge of a step. Also check whether Dad turns the light off because it produces glare. More light and usable light are not always the same thing.

The CDC home fall-prevention checklist says stairs should be well lighted and recommends a light with switches at both the top and bottom. It also says loose or uneven steps and loose handrails should be fixed. The Consumer Product Safety Commission likewise recommends good stair lighting and clear walking routes. Those references are collected on our Sources page.

The jobs you can reasonably do yourself

Change a burned-out bulb if the fixture is intact, the bulb matches the fixture label and you can reach it without making Dad hold a chair. Check the label inside the fixture for the permitted bulb type and maximum wattage. Do not assume the brightest bulb on the shelf belongs in every old fixture.

You can also try a plug-in lamp where an outlet already sits safely beside the route, provided its cord does not cross the walking path. A battery-powered motion light can cover a landing or short hallway without changing the wiring. Mount it securely, test whether it activates before Dad reaches the first step and put battery checks on an existing household routine.

These are trials, not permanent victories. Test the setup from Dad's chair or bedroom, with the other lights off. Ask him to turn it on and walk the route while you watch. If he has to wave at the sensor, hunt for a tiny switch or step over a cord, the installation has failed its only useful test.

Do not solve darkness with a trip hazard

An extension cord across a doorway, under a rug or along the stair edge is not a lighting plan. The Consumer Product Safety Commission says extension cords are for short-term use and recommends permanent wiring when more outlets are needed. It also warns against using outlets or switches that are hot, damaged or associated with repeated breaker trips. See the underlying federal materials through our source notes.

Stop using the suspect fixture or outlet and call an electrician if you find scorch marks, buzzing, a burning smell, a loose receptacle, a switch that feels hot, visible wire damage or a breaker that repeatedly trips. Do not open the box for a quick look. Electricity is not impressed by family loyalty.

When hiring it out is the right call

Hire an electrician when the useful fix requires a new fixture, new outlet, new switch location, hardwired motion sensor or wiring inside a wall or ceiling. The same applies when the existing setup behaves unpredictably or the home has older wiring you cannot identify.

Before accepting an estimate, describe the result rather than prescribing the wiring: Dad needs light before his foot reaches the first step, control from both ends of the stairs and no cord in the walking path. Ask the electrician to explain where the controls will be, how the light will behave after a power interruption and whether the proposed work requires a permit or inspection.

Rules differ among the City of St. Louis and the surrounding municipalities and counties. In the city, electrical permits are issued to licensed electrical contractors, while qualifying owner-occupants may perform certain work only after meeting city requirements. Do not treat that as permission throughout the metro. Ask the local building department which rule applies to Dad's address and ask the contractor who will obtain any required permit.

When comparing electricians, check the exact name on the license, confirm that the person or company is authorized where the house sits, ask for proof of insurance and get the scope in writing. The scope should identify the fixtures and controls being installed, wall repair responsibility, permit responsibility, cleanup and how the finished work will be tested with Dad present.

Dad still owns the decision

If Dad understands the choice and says no to permanent work, a fall does not quietly transfer ownership of the house to you. You can offer the smallest acceptable change, explain the specific hazard and leave emergency action for an actual emergency.

If he rents, do not authorize alterations yourself. Get Dad's agreement, contact the landlord or property manager and ask in writing who will inspect the existing fixture and approve any modification. If you need help finding the correct local office or aging-service contact, use Local Help in St. Louis.

The next move tonight

Take Dad through the stair route once with the surrounding lights off. Mark every place where his foot reaches a step before usable light reaches the floor. If a compatible bulb or securely mounted battery light fixes those spots without a cord, install and test it with him. If the fix requires wiring, call two locally authorized electricians and ask each for the same written scope: light before the first step, control from both ends and no new obstacle in Dad's path.