Your mother says she cleans the lint screen. You believe her. That still does not tell you whether the dryer can push air all the way through the wall.
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.
A dryer has a maintenance route: the lint screen, the space behind the machine, the short connection to the wall, the hidden duct, and the flap outside. Each part can belong to a different person unless you make the whole route one assignment.
This is not a reason to book a flight. It is a reason to find out what has actually been checked, who can reach each part, and what proof will come back to you.
1. Map the whole air route
Ask for a slow video call from the laundry area. Start at the dryer and follow the exhaust route as far as the camera can go. Record whether the dryer is electric or gas, where it sits, what connects it to the wall, and where the duct appears to leave the house.
Do not guess that the outside opening is directly behind the machine. It may be on another wall or above ground level. Ask someone local to find it without climbing or leaning from a window.
Make one simple record with five lines: lint screen, behind dryer, connection, hidden duct, outside flap. Put a name beside each line only after someone has agreed to check it.
2. Get a baseline before ordering a cleaning
Ask your local person to send photos of the lint screen in place and removed, the floor behind or beside the dryer, the connection at the back, and the outside opening. If moving the dryer would strain the cord, gas connection, or vent, leave it where it is and make that area part of the service call.
Run a normal load while someone watches the outside flap from a safe position. Ask for a short video showing whether the flap opens and whether air is moving. Also record whether clothes now need another cycle, the dryer stops unexpectedly, the laundry area becomes unusually hot, or lint gathers around the machine.
These observations do not identify the cause. They give the next person something specific to inspect.
3. Separate every-load work from service work
The person using the dryer owns the lint screen before or after every load. That job should not depend on a visiting helper remembering it later. If your mother cannot remove, clean, and replace the screen easily, assign it to whoever handles the laundry.
The deeper work needs another owner. The U.S. Fire Administration says to check behind the dryer for lint, make sure the connection is not damaged, crushed, or restricted, and confirm that the outside cover opens while the dryer runs. The Consumer Product Safety Commission also calls for lint to be cleaned from the vent pipe on a recurring basis.
Write the deeper cleaning into the house record. A completed job should include the full route to the outside, not only the opening behind the machine.
4. Decide who owns access
A useful local owner does more than unlock the door. This person knows where the dryer is, where the outside opening is, whether the contractor may move the machine, and how you will be reached if the visible connection is damaged.
If the outside opening is high, behind shrubs, below a deck, or inside a narrow side yard, say so before the visit. If the dryer is gas-powered, tell the company and ask how it handles moving and reconnecting the appliance. Do not ask your mother or an untrained neighbor to move it.
If you do not have one person who can manage the visit, define that gap before booking. The site’s guide to local help for a St. Louis parent can help you frame a limited house assignment without handing over every household decision.
5. Compare the actual assignment
When you call providers, describe the route you mapped and ask each one the same questions:
Will you clean from the dryer connection through the outside opening? Will you inspect the visible connection for crushing, gaps, or damage? Will you confirm that the outside flap moves freely after cleaning? Will you move the dryer, and will you return it without pinching the connection? How do you handle a gas dryer? What will you do if the duct is disconnected or damaged inside a wall? What photos or written findings will you provide?
Ask whether cleaning and repair are separate assignments. A person may be able to remove lint but not open a wall, replace a long duct, or correct a poor route. You want to know where that person’s responsibility ends before the machine is pulled out.
6. Close the job with proof
Do not close the task when someone says the vent was cleaned. Ask for an after photo of the connection behind the dryer, the area around the machine, and the outside opening. Ask for a video of the outside flap while the dryer runs.
Have the local owner confirm that the dryer is level, the cord and connection are not trapped, the lint screen is back in place, and no tools or loose lint remain. Then run an ordinary load and record whether it dries as expected.
Keep the service note, photos, provider name, and any repair recommendation in the house folder. Add the next check to the same recurring home-maintenance list used for the furnace, plumbing, and other systems. The public guidance behind these checks is identified on the site’s Sources page.
7. What to do tonight
Call your mother and ask only what she can answer without moving anything: where the dryer sits, whether she cleans the lint screen, whether loads take more than one cycle, and whether she has noticed unusual heat, stopping, or lint around the machine.
Then text one local person a five-photo request: the lint screen, the front of the dryer, the visible space beside it, the connection if safely visible, and the outside flap. Tell that person not to pull out the machine or climb.
Open a note titled “Dryer vent route.” List the five parts of the route and leave the owner blank until someone accepts each job. If the dryer or connection looks damaged, smells hot or unusual, or behaves differently from normal, stop using it and arrange an appropriate service visit before another load.
8. What to leave with the doctor
Leave the duct and appliance questions with the house team. Bring the doctor only changes you have observed in your mother, such as no longer being able to remove the lint screen, forgetting that the dryer is running, struggling to carry laundry safely, or becoming unable to describe what happened when a cycle stopped.
Use plain observations, not conclusions. Say what task changed, when you noticed it, and what help is now covering it. The doctor does not need your vent-cleaning receipt. The doctor may need the small functional change that caused you to give this maintenance job a new owner.