She asked to stay in her own house. That promise depends on small things working at ordinary hours: the front door opening under her hand, the evening helper getting in, and you knowing where the spare key is when a plan changes.
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.
Before you schedule a locksmith, walk the whole job from the first door to the last person who may need entry. Do not begin with a particular lock. Begin with the six things the house has to hold.
1. The service call has to include every door that matters
List the doors she actually uses, including the door from the garage, a side entrance, and any storm door that can block the main lock. Note which doors have a deadbolt, a keyed handle, a loose latch, or a key that works only after you lift or pull the door.
Ask the locksmith to inspect each listed door before changing hardware. A new lock will not correct a door that drags, a frame that has shifted, or a latch that does not meet the strike plate. Ask who handles those repairs if they fall outside the locksmith's work.
It becomes a question for the care team when the planned entrance is not on a route she can use safely, or when reaching, gripping, turning, or balancing at the door is part of the difficulty.
2. She has to be able to operate the finished lock
Tell the locksmith how she opens the door now. Does she use one hand on the frame? Can she turn a small key? Does she pause between unlocking the handle and the deadbolt? Can she see the keyway and tell whether the lock is open?
Before installation, ask to handle the proposed hardware. After installation, have her open and secure the door from both sides while the locksmith is still there. Test it seated and standing if both positions are part of her day. Check the lock in daylight and with the entry light on.
It becomes a question for the care team when she cannot repeat the motion without hands-on help, forgets the new sequence, or becomes unsteady while working the door.
3. Trusted help has to have a clear entry route
Write down who may need entry: family, a neighbor, a hired caregiver, housekeeping help, or another regular visitor. Decide who receives a key, who may use a code, and who must knock and wait. A hired caregiver may pick up prescriptions as an errand and give medication reminders, but entry to the house does not transfer responsibility for medicine.
If a lock uses codes, ask how individual codes are added, removed, and tested. Avoid one shared code if you need to know which access should end when a helper changes. If the plan uses physical keys, count them before the locksmith leaves and record who receives each one.
It becomes a question for the care team when someone may need to enter for scheduled care but she cannot reliably answer the door, or when nobody has authority to let that person in.
4. The house has to hold a backup when the usual entry fails
Ask what happens if a key breaks, a keypad loses power, a battery runs down, or the door settles and the latch sticks. Find out whether the lock has an outside key override and where that key will be kept. If batteries are involved, ask how the low-battery warning appears and who will notice it.
Test the backup. Do not treat a sealed envelope, an untested spare, or a code stored only on one person's phone as a working plan. Make sure the backup can be reached without entering through the locked door.
It becomes a question for the care team when a missed entry could also mean a missed meal, personal care visit, or other necessary support. The care plan needs another check, not merely another key.
5. The installation has to end with a complete handoff
Before the locksmith leaves, operate every changed lock several times. Test each new key in each lock it is meant to open. Confirm which doors use the same key and which do not. Check that storm doors, screen doors, and garage entry doors do not create a second lockout.
Ask for the names of the installed parts, written instructions for changing codes or batteries, and the service number for a lock that binds or fails. Photograph the instructions and place the paper copy where family can find it. Do not photograph or label a key in a way that reveals the address if it is lost.
It becomes a question for the care team when the new system depends on steps she cannot follow consistently, even after a calm demonstration in her own doorway.
6. Someone has to own the lock after installation day
Name the person who will keep the key list, remove old codes, replace batteries, arrange repairs, and update helpers when access changes. Put a simple door check on the house calendar: open it, lock it, test the spare, and look for dragging or looseness.
Also decide what happens after a hospital trip, a change in hired help, or a lost key. The answer may be a new code, a returned key, or another locksmith visit. It should not depend on you remembering every detail in the middle of a hard week.
It becomes a question for the care team when changes in memory, movement, vision, hearing, or daily support have made the old entry plan unreliable. The lock may still work exactly as installed while the plan around it no longer holds.
The service is complete when she can use the door she depends on, each trusted person has only the access intended, the backup has been tested, and one person owns what happens next. That is how a changed lock becomes part of keeping her home instead of one more task left at the threshold.