A typical scenario (an illustrative story, not a review from any specific customer)

A first home in a Mueang Lopburi housing estate, not even half paid off

Gift and Ek, a couple in their early thirties, bought a single-storey detached house in a housing estate in Mueang Lopburi district five years ago. It was their first home and they had decorated every corner themselves: wood-look laminate flooring, built-in wardrobes in the bedroom, a grey fabric sofa bought only last year, and a small room set up for their five-year-old son, who has allergies.

This year, after days of heavy rain, the estate's drains could not keep up. Water slowly rose from the road into the house to about twenty centimetres and stayed for three days. The family moved in with Ek's parents for the time being. When the water dropped and they opened the front door, the first thing that hit them was a musty smell mixed with drain odour. The laminate floor had swollen into waves, the bottom edges of the built-in wardrobes had puffed up and split, and the fabric sofa had wicked water almost up to the seat cushions.

They spent the weekend pulling up the laminate, washing the concrete beneath, wiping the walls with disinfectant and running the air conditioner and fans to pull out moisture. A week later the house looked much cleaner, but after two nights back home their son began coughing at night and sneezing non-stop in the mornings. Gift opened the wardrobe and found green mold spots on the back panel, and a musty smell still puffed out of the air conditioner every time it was switched on.

"We cleaned as hard as we could, so why is it still like this?" Gift typed into the estate's LINE group, and found that many neighbours were facing the same problem.

The 2026 Lopburi Flood Across Five Districts

According to the DDPM report of 2 October 2026, Lopburi had flood-affected areas in five districts, Mueang Lopburi, Tha Luang, Phatthana Nikhom, Khok Samrong and Ban Mi, a total of 1,657 households. Nationally, the DDPM reported on the same day that flooding affected 31 provinces plus Bangkok, 1,245,581 households and about 3,535,206 people, caused by heavy to very heavy rain combined with runoff from the north. These figures change daily, so also follow announcements from Lopburi province and local agencies.

Lopburi combines a historic old town, growing urban communities and wide farmland. The Lopburi River runs through the town, while in the east of the province the Pa Sak River passes through areas such as Tha Luang and Phatthana Nikhom. Mueang district has many housing estates, townhouses and commercial buildings, while Khok Samrong, Ban Mi and Phatthana Nikhom have corn and sugarcane fields, rice paddies and rural village homes.

A figure of 1,657 households may look small next to some provinces, but the health risk inside each home is not smaller because the total is. A house that took in even a few tens of centimetres of water has contaminated water touching floors, walls, furniture and every item at that level. And modern homes built with laminate floors, particleboard cabinets and gypsum ceilings absorb moisture readily and grow mold fast.

Walking Through a Lopburi Home Room by Room: Where Every Flood Germ Hides

WHO and CDC advise treating all floodwater as contaminated, because it has already passed through drains, septic tanks, roads and farmland. Let us walk through the house one room at a time and see where each group of germs settles.

The kitchen: bacteria and viruses that cause diarrhoea

The kitchen needs the most care because it is linked directly to what we eat. Floodwater brings faecal bacteria such as E. coli, Salmonella and Shigella, along with viruses such as norovirus and rotavirus, which cling to the under-sink cabinet, table legs, cutlery drawers and countertops. Using utensils that have not been washed and disinfected, or placing food on contaminated surfaces, can lead to diarrhoea, stomach pain, vomiting and fever. All food, medicine and condiments that touched floodwater must be thrown away; this is not the time to be thrifty.

The bathroom: backflow from septic tanks and drains

In housing estates and townhouses, when public drains fill up, sewage often flows back up through bathroom floor drains and toilets. The bathroom therefore holds the most concentrated sewage germs in the house. Wash it with detergent, disinfect hard surfaces and check the septic system once the water has gone.

The bedroom: mold in built-in wardrobes, mattresses and laminate

Modern bedrooms are full of absorbent materials: built-in wardrobes made of plywood or particleboard, laminate flooring with a compressed wood-fibre core, and spring or latex mattresses. Once they stay damp beyond 24 to 48 hours, mold starts growing, especially on the backs of wardrobes against the wall and under laminate where nobody can see. Airborne spores trigger allergies, causing coughing, sneezing and a blocked nose, and can bring on asthma attacks. Children with allergies, like Gift's son, are often the first to show symptoms.

The living room: fabric sofas, rugs and air conditioners

Fabric sofas and rugs wick water well above the waterline and dry very slowly; if they soaked for long, most will need to go. Air conditioners may not touch the water at all, but running them in a room full of mold spores and humidity lets the coil and drip tray collect microbes, which then blow a musty smell back out every time the unit runs. Have a technician clean the units once the house is dry.

The front yard and garden: leptospirosis in mud and standing water

Mud and standing water around the house, on the lawn and in the drain out front may contain Leptospira bacteria from rat urine, which enter the body through wounds or skin softened by long soaking. Farming areas in Khok Samrong, Ban Mi and Phatthana Nikhom carry the same risk. Anyone who waded and then gets a sudden high fever, headache, severe calf pain or red eyes must see a doctor promptly and mention the wading.

Every room: musty and drain odours

The smell hanging throughout the house comes from volatile compounds released by mold and bacteria as they break down mud, leaves and wet materials. It signals that microbes are still active and that recovery is not finished yet.

Who is most at risk

Young children and children with allergies, older adults, pregnant women, people with asthma, lung disease, diabetes or kidney disease, and anyone with weakened immunity should move back only after the house has been dried, cleaned and disinfected.

The Damage Lopburi Families Face After the Water Drops

The health of children and sensitive family members. A house still holding mold spores and musty odour sends allergic children to the doctor more often, forces parents to take leave and keeps children out of school.

Financial strain on homes still being paid off. Many housing-estate families are still paying a mortgage and a car loan. Paying for new flooring, replacement cabinets and new furniture is a heavy burden, and if the recovery is done wrong and mold returns, the costs only grow.

Working people's time. Working adults in Lopburi town only have weekends to fix the house. Cleaning again every week because the smell will not leave wears people down physically and emotionally.

Farmers in Khok Samrong, Ban Mi and Phatthana Nikhom must split their time between restoring damaged fields and repairing their homes. A house restored correctly the first time lets them get back to their livelihood sooner.

Property value and peace of mind. A house with mold stains and a musty smell will fetch a lower price whether you sell or rent it later. More importantly, you feel uneasy every time you walk into your own home.

Why Modern Homes Still Smell and Grow Mold After Cleaning

Modern materials hide moisture well. Plywood, particleboard, laminate cores and gypsum board absorb water into the material itself. The outside may look dry while the inside stays wet, so mold grows from within.

Disinfectant only reaches surfaces you can see. Wiping walls and floors with disinfectant helps on the surface, but the backs of cabinets, under counters and the gaps between walls and furniture usually get missed. And never mix bleach with bathroom cleaners or ammonia.

Running the air conditioner to dry the house. Air conditioning removes some moisture, but if the room still holds mold spores, the unit draws them in, collects them and blows musty air back out.

Air fresheners and scented gels. They cover the smell for a while, but they do not remove the germs causing it.

Rushing to install new floors and cabinets. Laying a new floor over still-damp concrete, or fitting new cabinets against a wall that still has mold, seals the problem in, and it comes back within months.

Ozone Disinfection for Homes in Lopburi

World Health Disinfection (WHD) provides residential and building ozone disinfection for detached houses, townhouses, condos, offices, schools, childcare centres and other buildings. WHD's office is in Bang Khae, Bangkok 10160, and it has no branch in Lopburi. Homeowners in Mueang Lopburi, Tha Luang, Phatthana Nikhom, Khok Samrong, Ban Mi or any other district can contact the team to plan a service; travel and coverage are confirmed by phone on 065-556-6294 or LINE @whd268.

How ozone works in your home

Ozone (O3) is a strongly oxidising gas. Released into a closed room, it slips into the gaps behind cabinets, under beds, inside open wardrobes and along material joints. It breaks down the structures of viruses, bacteria and mold, breaks apart odour molecules, and then reverts to oxygen (O2), so there is no chemical residue. According to test results certified for the company by Thailand's Department of Medical Sciences and Intertek (UK), the system eliminates viruses, bacteria and mold by 99.99%. Learn more about the ozone cleaning service.

Home ozone treatment steps

1. Consult and assess. Send photos, a room layout and the flood height via LINE, or call the team.
2. Clean and dry first. Remove swollen flooring and materials, shovel out mud, wash, disinfect hard surfaces and ventilate until dry.
3. Prepare the rooms as advised. Open cabinets, drawers and inner doors, and remove food, medicine and plants.
4. Treat zone by zone. No people or pets in the area, doors and windows closed; typically about 30 minutes per zone.
5. Rest and ventilate. Open doors and windows, let ozone revert to oxygen, then move back in when the team says so.

What to remember: ozone treatment takes place only in an empty, closed space. People, pets and plants must leave and may return only after the rest and ventilation period. Ozone comes after mud removal, washing and drying; it does not replace cleaning and it does not replace medical treatment. Fever, calf pain, diarrhoea or coughing and wheezing after the flood mean seeing a doctor.

10 Reasons Lopburi Homes Should Finish Their Recovery With Ozone

1. It reaches behind built-in wardrobes and under furniture, where mold hides in modern housing-estate homes.
2. It reduces mold spores in children's bedrooms, lowering allergy triggers after cleaning.
3. No residue, since ozone reverts to oxygen. Read about reducing chemical residue with ozone.
4. It helps with drain odour lingering in bathrooms and kitchens after the source has been cleaned.
5. Broad coverage of viruses, bacteria and mold, according to test results certified for the company.
6. It prepares rooms before new floors and cabinets go in, reducing the chance new materials grow mold too.
7. It helps clothes, curtains and soft toys that were washed but still smell, when spread out in the treated room.
8. It suits childcare centres, schools and offices that many people must return to. See the building ozone service.
9. About 30 minutes per zone, so working families can schedule it on a day off.
10. A free medical-grade disinfectant spray with ozone jobs of 15,000 baht or more. Ask on the service page.

Before and After: A Lopburi Estate Home Restored Step by Step

Example Case: A Small Childcare Centre in Ban Mi

Example case (an illustrative scenario, not a real customer review)

Teacher Ann runs a small childcare centre in a single-storey building in Ban Mi district, Lopburi, looking after about fifteen children aged one to three. When floodwater came in about a hand-span deep, she had to close immediately. Nap mats, foam crawling mats and many toys were soaked.

After the water receded, Ann and volunteer parents shovelled out the mud, threw away all the soaked nap mats and fabric toys, washed and properly disinfected the plastic toys, scrubbed the floors and walls and ran fans until the building was dry. Yet many parents were still worried, because children this age crawl on the floor and constantly put their hands in their mouths, and some could still smell mustiness in the nap room.

Ann contacted WHD on LINE with photos and the floor area. The team advised checking for moisture at the base of the walls and in the storeroom first, then set a date once travel was confirmed. On the day, no children, teachers or anyone else were in the building. The team divided it into zones: the play room, the nap room, the storeroom and the children's bathroom, about 30 minutes each, followed by ventilation as instructed.

"We could explain every step to the parents, from throwing things out and washing to drying and disinfecting, and they felt comfortable bringing their children back," Ann says in this example.

Lopburi Flood Recovery Checklist, Room by Room

Before entering

• Switch off the main breaker and have an electrician check sockets and wiring that were under water.
• Open doors and windows to ventilate; wear rubber boots, rubber gloves and a mask.
• Photograph the damage before removing or throwing anything away.

Kitchen and bathroom

• Throw away food, medicine, condiments and anything in the under-sink cabinet that touched water.
• Wash utensils with dish soap, then disinfect with hot water or a method public health agencies recommend.
• Clean the bathroom, toilet and floor drains, and check the septic tank is working normally.

Bedrooms and living room

• Remove swollen laminate or plywood flooring and let the concrete underneath dry completely.
• Pull built-in wardrobes or furniture away from walls to check for mold behind them.
• Discard mattresses, fabric sofas and rugs that soaked for long.
• Have the air conditioners cleaned once the house is dry.
• Dry everything within 24 to 48 hours, as WHO and CDC advise.

On ozone day

• Everyone, pets and plants leave the house.
• Open cabinets, drawers and inner doors; close windows.
• Wait for the team to confirm ventilation is complete before going back in.

After ozone

• Install new floors and cabinets once you are sure floors and walls are fully dry.
• Keep ventilating and fix any leaks.
• Watch everyone's health. Fever, calf pain or diarrhoea means seeing a doctor.

FAQ: Ozone Disinfection in Lopburi

Does WHD have a branch in Lopburi?
No. The office is in Bang Khae, Bangkok. You can plan a service in Lopburi by calling 065-556-6294 or via LINE @whd268. Travel and timing are confirmed job by job, and same-day arrival cannot be guaranteed.

Do we need to remove laminate flooring before ozone?
If the floor has swollen, it should generally come up so the concrete beneath can dry, because moisture trapped under the floor keeps feeding mold. Ozone comes after damaged materials have been dealt with and the house is dry.

Can we stay at home during treatment?
No. People, pets and plants must all leave and return only after the rest and ventilation period the team specifies.

Our child has allergies. Will ozone cure them?
Ozone helps reduce germs and mold spores in the home, but it is not a treatment for allergies. If your child still has symptoms, see a doctor, and keep the house dry and clean.

How long does it take?
Typically about 30 minutes per zone, plus preparation and ventilation. A typical detached house is split into several zones by room.

Can childcare centres or schools use the service?
Yes. The service covers schools, offices and other buildings, and must be done when no children or staff are inside.

Make Your Lopburi Home a Place Everyone Can Breathe Easily Again

Once the mud is out, damaged materials are removed and the house is dry, talk to the WHD team about ozone disinfection to reduce germs, mold and musty odour before your family moves back in.

Ask About Ozone Disinfection

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

Related services

• Disinfection service
• Certification documents
• Contact us

References

• Bangkokbiznews, DDPM flood situation: bangkokbiznews.com
• Thai PBS flood news: thaipbs.or.th
• WHO fact sheets: who.int
• CDC, after a flood: cdc.gov/floods
• Thailand Department of Disease Control: ddc.moph.go.th