You need someone at Mom's house from about the end of lunch until you leave for kid pickup. Not all day. Not overnight. Just the narrow little window that keeps your workday from collapsing into a steering-wheel conference call.
Then you start comparing options and discover that a short afternoon visit can cost more per hour than a longer block. This feels backward. Fewer hours should mean a smaller commitment, right?
Usually, the length of the visit is only one part of the cost. The provider also has to cover travel, scheduling, supervision and the risk of leaving an awkward gap before or after Mom's visit. Your useful comparison is not simply the hourly number. It is the total cost of getting the right person there at the exact time your family needs coverage.
Start with the minimum visit
Ask every provider whether there is a minimum number of hours per visit. Do not assume you can book ninety minutes because ninety minutes is all the calendar appears to need.
A minimum visit helps a provider give a worker a usable block of paid time. Without it, that worker may spend almost as much time driving as helping. A short assignment in Chesterfield followed by another in Kirkwood may look close on a map and behave very differently once school traffic joins the meeting.
Write down the minimum, the hourly charge and the total charge for the visit. If one option has a lower hourly figure but requires a longer visit, it may still cost more overall. It may also give Mom useful time for lunch cleanup, laundry, a walk or companionship. Decide whether those extra hours solve a real problem or merely make the invoice longer.
Separate fixed timing from flexible timing
Some afternoon tasks can happen anytime within a broad window. Someone can bring in packages, warm lunch and change the sheets at one or three. Other tasks have a hard edge. Mom must be ready when transportation arrives. The dog needs to be inside before a repair person comes. You have to leave for school pickup by a certain minute, because apparently the middle-school parking lot was designed as a test of character.
Fixed timing can raise the cost or limit your choices because the provider cannot slide the visit earlier or later to fit another client nearby. When you call, explain which part of the visit is truly fixed and which part can move.
Ask:
Can the start time fall within a window? Does a narrower arrival window change the rate or availability? Is there an extra charge for evenings, weekends or holidays? If the worker arrives late, does the visit still end at the original time? Can the schedule change during school breaks?
A little flexibility may open more options. Do not offer flexibility you do not actually have. A worker arriving forty-five minutes late is not helpful if you are already supposed to be on Clarkson Road with a kid and a trumpet.
Count the tasks, not just the hours
Two visits of the same length can require very different staffing. Sitting with Mom while she eats lunch is one assignment. Lunch, shower setup, laundry, stairs, a dog that bolts and a drive to an appointment is another.
Make a plain list of what you expect during the visit. Include the unglamorous details that affect the work:
Will the person drive Mom? Whose car will be used? Is there lifting or hands-on personal care? Are there stairs? Is parking straightforward? Are pets in the home? Does Mom smoke? Does she need reminders, meal preparation or help moving around the house? Are errands included? Does the worker need to wait through an appointment?
Then ask the provider which tasks are included in the quoted rate and which require different staffing or are not offered. If Mom needs anything clinical, take that question to her care team. Non-medical help at home can cover the household and afternoon window without pretending to replace a nurse or other clinician.
Check the driving rules carefully
Transportation can change the total quickly. A visit that includes a trip from Ballwin to an appointment near a hospital campus is not the same as a visit entirely inside Mom's house.
Ask whether the worker may drive Mom, whether the worker can use Mom's car, whether mileage is added, when mileage begins and whether waiting time counts as visit time. Also ask what happens if an appointment runs long.
If transportation is the only reason you need help, compare the full door-to-door job. Mom may need someone to help her gather her things, walk out, ride with her, wait and get settled at home afterward. A ride alone may leave you covering every difficult minute around it.
Ask how consistency affects cost
A repeating schedule is often easier to staff than a different request every week. The provider knows where the visit fits, the worker knows Mom and you spend less time explaining that the blue trash bin goes out on Thursday even though Mom will swear it has always been Wednesday.
Ask whether the same days and hours each week affect the rate or minimum visit. Find out whether you are guaranteed the same worker or simply promised that someone will come. Ask what happens when the regular worker is unavailable and whether backup coverage costs differently.
If your schedule changes constantly, look at your split week before requesting help. Put the kids' row above Mom's row, then mark collisions in lemon. You may discover that you do not need random help whenever panic arrives. You need one repeating block on the afternoon when both rows reliably crash. The basic setup is explained in The Kids' Week and Mom's Week.
Look for charges outside the hourly rate
Before comparing totals, ask each provider the same questions. Is there an assessment, enrollment or setup charge? Is there a minimum weekly commitment? Are weekends or holidays handled differently? Is mileage separate? Does the rate change for transportation, pets, stairs or hands-on help? What happens if Mom cancels at the door? What happens if you cancel the night before? Is there a charge when no replacement worker is available?
You are not being difficult. You are trying to find the number that will actually appear after an ordinary messy week, not the nicest number from the first phone call.
Compare three versions of the afternoon
Ask for the total cost of three specific schedules: the smallest visit the provider allows, the exact afternoon block you prefer and a longer repeating visit that could absorb other useful tasks.
For each version, write down the start-time flexibility, total visit charge, transportation charges, cancellation rules, backup coverage and included tasks. This turns a fuzzy hourly comparison into three real choices.
The shortest visit may win. The longer visit may be better if it replaces grocery pickup, laundry and the frantic drive across West County. Or you may find that a fixed twice-weekly schedule costs less overall than arranging emergency coverage every time the calendars collide.
Know what you are buying back
The goal is not to prove that you could perform every task more cheaply yourself. Of course you could, if your time had no other job. It does. During that afternoon window, you may also be an employee, a spouse, the person who remembers the cleats and the only adult currently aware that dinner requires ingredients.
Before you choose, name the collision the help is supposed to remove. Maybe it protects a work meeting. Maybe it lets one kid count on you for pickup. Maybe it stops you and your spouse from negotiating Mom's errands after both of you are already tired.
If a proposed schedule does not reliably remove that collision, keep comparing. Cheap help at the wrong time is still the wrong help.
Your call script
You can say: "I am looking for non-medical help for my mom on weekday afternoons. The fixed part of the visit is from ___ to ___ because I have school pickup. The tasks are ___. What is your minimum visit, what would the total visit cost, and what could change that total? Is transportation included? What happens if the regular worker is unavailable or we need to cancel?"
Use the same description with every provider. If you change the hours, tasks or transportation details halfway through, you are no longer comparing the same afternoon.
For nearby starting points, use Local Help in St. Louis. Then put the chosen block onto both rows of the split week. Mom gets dependable help, the kids can see when you are theirs, and you get one afternoon that no longer depends on cloning yourself before three o'clock.