Note: This article is general information about caring for a home after a flood. If an older person has chronic conditions, wounds or unusual symptoms, consult a doctor. Electrical work, structural repairs and servicing of power wheelchairs should be handled by qualified technicians.

A Story from the Field: The Ramp She Was Proud Of Became the Scariest Spot in the House

Noon is forty-five. For three years she has cared for her father, Uncle Sompong, who is seventy-eight and has used a wheelchair since he broke his hip. The family lives in a single-story concrete house, raised a little above the ground, at the end of a lane that runs down to the Chao Phraya River in Phra Pradaeng. When her father first needed the wheelchair, Noon saved up to have a concrete ramp built at the front door, grab bars fitted in the bathroom, the bathroom doorway widened and a shower chair bought. She was proud of a home that let her father wheel himself from room to room without waiting for help.

During the 2026 floods, the river pushed water up the lane and into the house to almost knee height. Noon took her father to stay with her younger sister in Bang Phli for about ten days. A spare wheelchair that had been parked by the front door was completely submerged, along with the foam seat cushion resting on it.

When the water went down, the first thing she saw was the ramp coated in a sticky layer of mud, with slick green patches already forming along its edges. Inside, the house smelled musty. In the bathroom, a sewer smell was rising from the floor drain, the tile grout had turned black, the shower chair had mud packed into its joints, and a couple of the grab bars showed small spots of rust.

Noon tried pushing the empty wheelchair up the ramp. The rear wheels slid and the chair rolled back down, almost hitting the gate. In that moment she understood that restoring this house was not only about cleanliness. It was about preventing a fall that could injure her father all over again.

Her story is repeated in many riverside homes in Phra Pradaeng, Bang Krachao and the older lanes along the river in Samut Prakan. Families who invested in making a home accessible now face the question of how to make it accessible and safe again, quickly, without cutting corners.

Why a Wheelchair User's Home Needs a Different Kind of Recovery

• The only usable route must be safe. Other people can step around a slippery patch, but a wheelchair user has to cross the same ramp, doorway and bathroom floor every single day.
• Hands touch the wheels constantly. People who propel themselves grip the hand rims, which roll over every part of the floor. If the floor still carries floodwater germs, the hands pick them up again and again.
• Long hours on the same cushion. A damp cushion keeps skin on the buttocks and thighs sweaty, raising the risk of rashes and pressure sores.
• The bathroom is where falls happen most. Wet floors, slippery grout and the transfer from wheelchair to shower chair all demand an especially clean and dry space.
• Older people often have weaker immunity. Urinary, skin or respiratory infections can become more serious than in younger adults.

Risks Every Family Should Understand

Falls and injury. A ramp with mud or algae on it makes the wheels slip. A wheelchair can roll backward or tip over. A bathroom floor with a greasy film of silt makes feet slide during transfers. For an older person with a history of hip fracture, a single fall can mean another hospital stay and a long recovery.

Health. Floodwater carries bacteria from drains and sewage into the house, especially into bathrooms where drains can back up. Mold spores may trigger coughing or allergies. Caregivers who waded through water should watch for leptospirosis; a fever with aching calves after floodwater contact is a reason to see a doctor promptly.

Independence and dignity. If the house is not safe, an older person who used to move around alone has to wait for help every time. That loss of independence can weigh heavily on morale, and it also adds to the caregiver's workload.

Cost. Wheelchairs, cushions and shower chairs that deteriorate from damp and rust may need replacing long before their time.

Common Approaches That Can Make the Home More Dangerous

1. Hosing the ramp and letting it dry on its own. A thin film of mud and algae can remain and stay slippery. The surface needs scrubbing until the concrete feels rough again, and it must be checked to be truly dry.
2. Using floor cleaners that leave a slick film on ramps and bathroom floors. Some products make floors more slippery than before. Rinse with clean water afterward and wipe dry.
3. Using strong bleach in a closed bathroom. Sharp fumes irritate the airways, and different cleaning chemicals must never be mixed.
4. Wiping a submerged wheelchair cushion and putting it back into use. The foam inside holds floodwater and is very hard to clean through. In most cases it should be replaced.
5. Charging a power wheelchair that was underwater straight away. The battery, motor and controller must be checked by a technician first because of the risk of short circuits.
6. Pouring perfume or deodorizer blocks down the drain. Sewer smells usually come from a dried-out trap or sediment in the pipes. A plumber should check it.

Restore the Home Point by Point, Following the Wheelchair's Route

1. The Ramp and Front Entrance

Scrape off the mud first, then scrub with a stiff brush and clean water. Check the edges of the ramp and the joint where it meets the house floor for algae. Let it dry fully in the sun. Push an empty wheelchair up and down several times before the older person uses it. If the concrete is damaged or the handrail wobbles, have it repaired first.

2. Doors and Thresholds

Sliding door tracks and thresholds often have mud packed tightly into them, which makes the wheels catch. Clear them out completely, and wipe the door handles and knobs that the older person touches often.

3. The Bathroom

Wash the mud off the floor and the lower walls, scrub the grout, check that every grab bar is still firmly fixed and clean off rust. Have a plumber check the floor drain and trap. Take apart any removable parts of the shower chair and clean them separately. Only then move on to disinfection fogging.

4. Bedroom and Living Room

Rearrange furniture so the wheelchair path is wide enough. Throw away rugs that were underwater, because rugs make pushing harder and hold mold. Position the bed so transfers from the wheelchair are easy.

5. The Wheelchair Itself

Rinse mud from the wheels, axles, brakes and footrests. Wipe the frame and hand rims with a disinfectant according to the label directions. Replace any cushion that was submerged. Test that the brakes still lock firmly. For a power wheelchair, have a technician or supplier inspect it before use.

The Solution: Disinfection Fogging and Ozone Treatment After the Scrubbing Is Done

Once the mud is out and the floors are dry, World Health Disinfection (WHD) follows up with two steps.

1. Disinfection fogging with CHEMGENE HLD4H through an ultra-low-volume (ULV) fogger. The fine mist reaches behind grab bars, into the joints of the shower chair, the corners of the bathroom, around door frames and across the ramp, helping to reduce germs on surfaces that were in contact with floodwater.

2. Ozone treatment fills closed rooms with ozone gas, which helps destroy airborne mold spores and breaks down the musty odor molecules in bedrooms, the living room and curtains.

How the Work Proceeds

1. Site survey. The team checks the flood line, the wheelchair route, the bathroom, damp spots and room sizes.
2. Advice on mud removal and sorting, such as which rugs, foam cushions and fabrics should be discarded.
3. Disinfection fogging throughout the house, the bathroom and the entrance.
4. Ozone treatment with rooms closed and the dose controlled. No people, pets or plants may be inside. Wheelchairs should be taken out of the treated rooms, because tires, cushions and some rubber parts may age faster under prolonged high-concentration ozone. Sensitive electronics should be moved out or covered.
5. Ventilation. Doors and windows are opened until the ozone breaks down back into oxygen, before the older person returns.
6. Re-check. The team assesses odor and damp spots and advises on ongoing care.

Checklist Before Bringing Dad Home

• The ramp is dry with no mud or algae, and an empty wheelchair test run does not slip.
• Handrails and bathroom grab bars are firmly fixed and do not move.
• An electrician has checked outlets and plugs that were underwater.
• No sewer smell is coming up from the bathroom drain.
• Disinfection fogging and ozone treatment are complete, and ventilation is finished.
• The wheelchair cushion has been replaced and the brakes lock properly.
• The shower chair is clean and its rubber feet are all in place.
• The path through the house is clear, with no rugs or clutter in the way.
• There is enough light in the corridor and bathroom at night.

Practicing Safe Transfers in a Restored Bathroom

Even after the bathroom is clean, dry and disinfected, the first few transfers are worth doing slowly and with someone standing by. After ten days away, an older person may feel less steady than before, and a newly scrubbed floor can feel different under the feet. Noon walked through the transfer with her father on the first afternoon: wheelchair parked at the same angle as always, brakes locked, footrests swung aside, then a careful move to the shower chair using the grab bar. She placed a non-slip mat outside the shower area and kept a dry towel within reach so that water would not spread across the floor.

It also helps to think about lighting and timing. Many falls happen at night, when people are tired and the light is poor. A small night light in the corridor and another in the bathroom can make a big difference. If the older person needs to use the bathroom at night, keep the route completely clear and make sure the wheelchair brakes are locked before every transfer. If transfers feel harder than they did before the flood, it is worth asking a physiotherapist or the local health center for advice. These steps are simple, but together they help a restored home become a safe home again.

Caring for the Wheelchair in the Weeks After the Flood

A manual wheelchair that went through floodwater can look fine on the outside and still have problems inside. Mud and silt work into wheel bearings, the folding cross-brace and the brake mechanism. Over the following weeks, that grit can make the chair stiff to push, cause squeaks, or stop the brakes from locking fully. After the initial clean, check the chair every few days. Spin each wheel and listen for grinding. Fold and unfold the frame if it is a folding model. Test the brakes on a gentle slope. If anything feels rough or loose, take the chair to a supplier or repair shop rather than adding oil yourself, because the wrong lubricant can attract more dirt.

Pay attention to the hand rims and armrests, which are touched constantly. Wipe them regularly with a disinfectant such as the CHEMGENE spray, following the label. Keep the replacement cushion dry, and if it has a removable cover, wash the cover often. If the older person has any reddened skin that does not fade after sitting, mention it to a doctor or nurse promptly, because pressure injuries are easier to manage when they are found early.

What Happens on the Survey Day

Many families are unsure what to prepare before the team arrives. In Noon's case, the survey took place while her father was still staying in Bang Phli, which made it easier to move around and open every cupboard. The team started at the gate and followed the wheelchair route into the house, noting the flood line on the walls, the condition of the ramp, the threshold of each doorway and the layout of the bathroom. They asked which rooms her father uses every day, where the spare wheelchair and cushions had been stored, and whether any electrical equipment such as a power wheelchair charger or an air mattress pump had been underwater.

From there, the team explained which jobs the family or other tradespeople should finish first, such as the plumber's check of the bathroom trap and the electrician's inspection of outlets, and which steps WHD would carry out afterward. Noon found it helpful to have a clear order of work written down, so that she could arrange her father's return for a day when everything was complete rather than guessing. Having photos of the flood damage on her phone also made it easier to discuss the details with her sister and with the community health volunteer who visits her father.

Ongoing Care in a Chao Phraya Riverside Home

Riverside homes in Phra Pradaeng stay humid all year round. After restoration, sweep the ramp every morning, especially after rain, and scrub its edges every week so algae does not return. Wipe grab bars and the wheelchair hand rims with CHEMGENE spray disinfectant according to the label. Open the bathroom window or run the exhaust fan after every shower, and keep an eye out for new mold spots in the corners of rooms. If the musty smell comes back, there is probably still trapped moisture somewhere that needs to be tracked down. Riverside lanes can also see more mosquitoes after a flood, so check for standing water in pots, gutters and drains around the house.

Talking with Neighbors and the Local Health Center

In closely built riverside lanes, a home's recovery often depends a little on the homes around it. If a neighbor's drain is blocked, water and smells can travel along the shared gutter. If an empty house next door is left full of mud, mold and mosquitoes can spread. Noon spoke with the two neighboring households before booking the work, and they agreed to clear the shared drain together. She also let them know when the ozone treatment would happen, so no one would wander in while the doors were closed.

The local health center or community health volunteers can also be a useful source of support. They often know which older residents need extra help after a flood and can advise on equipment loans, follow-up visits and practical issues such as getting to appointments while roads are still being cleared. Keeping them informed that an older wheelchair user has returned home means there is one more person watching out for him.

10 Reasons Families of Elderly Wheelchair Users in Phra Pradaeng Choose WHD

1. The survey follows the real wheelchair route, from the gate to the bathroom.
2. Disinfection fogging with a fine mist that reaches grab bars, joints and bathroom corners.
3. Uses CHEMGENE HLD4H, a disinfectant WHD supplies and uses in its own work.
4. Ozone treatment tackles musty odor in riverside homes that stay damp all year.
5. Clear advice to move wheelchairs, cushions and rubber equipment out of rooms during ozone treatment.
6. Ozone dose controlled to room size, with a clear ventilation step.
7. Practical guidance on what to discard, such as submerged rugs and foam cushions.
8. A mosquito spraying service around riverside homes after the water recedes.
9. Takes weight off caregivers who must care for an older parent while restoring the home.
10. Easy to reach by phone or LINE @whd268.

Before and After: Uncle Sompong's Home

Customer Voice (Illustrative Scenario)

"The team walked the exact route Dad uses, from the gate all the way to the bathroom, and told us to take the wheelchair out of the room during the ozone treatment. On the day Dad came home, he pushed himself up the ramp just like before. That matters a lot to him."

Noon, daughter and caregiver of a father who uses a wheelchair, Phra Pradaeng, Samut Prakan (an illustrative scenario).

Frequently Asked Questions

Q: Can an older person stay in the house during disinfection fogging and ozone treatment?
A: No. Older people, children and pets must be outside the work area for the whole of the fogging, the ozone treatment and the ventilation period. The team will tell you when it is safe to return.

Q: Does the wheelchair need to be taken out of the room during ozone treatment?
A: Yes, it should be. Tires, cushions and some rubber parts may age faster under prolonged high-concentration ozone. Clean the wheelchair separately.

Q: Can a submerged wheelchair cushion be washed and reused?
A: Usually not recommended, because the foam inside holds floodwater and germs. For specialist or air cushions, ask the supplier about replacing the insert or the cover.

Q: Can a power wheelchair that was underwater be used once it has dried out?
A: Not until a technician or the supplier has checked the battery, motor and controller, because of the risk of a short circuit or malfunction.

Q: Will ozone treatment get rid of the sewer smell in the bathroom?
A: Ozone helps reduce odor lingering in the room, but if the smell comes from a dried-out trap or sediment in the pipes, a plumber needs to fix the source first so the smell does not return.

Q: Besides washing, what else should be done to a concrete ramp after a flood?
A: Check for cracks, chipped edges and loose handrails. If the surface has become too smooth, ask a builder about adding a non-slip finish.

Help Your Parents Move Around Home with Confidence Again

Book a survey of a flood-affected home for an older wheelchair user in Phra Pradaeng or nearby.

See Disinfection Service, Click Here

Book Ozone Treatment, Click Here

Call 065-556-6294 · LINE @whd268 · worldhealthdisinfection@gmail.com

Related Links

• Residential ozone disinfection
• CHEMGENE HLD4H spray disinfectant
• Mosquito spraying service
• All articles
• External sources: WHO: Floods and health and Department of Health, Thailand