Last Updated on September 24, 2026 by Jeff Tomas
BANGKOK – Turning on the tap and finding weak pressure or no water can leave you wondering whether the problem is inside your building or across the neighborhood. The Metropolitan Waterworks Authority (MWA) posts service notices that can help you check whether planned work affects your area.
Compare the road and soi details in the notice with your address, then check MWA onMobile or call 1125 if the listing doesn’t answer your question. Here’s how to check your location and what to do when it isn’t clearly listed.
Key Takeaways
- Check MWA’s official outage map for a notice that matches your street or soi, since nearby areas may have different service schedules.
- Compare the listed locations and outage times with your address, then use MWA’s official website or MWA onMobile to confirm current information.
- If your address isn’t clearly listed, call the MWA Call Center at 1125, available 24 hours a day, and ask whether your area is affected.
- If the notice doesn’t explain weak pressure or a continuing outage, contact MWA to check whether the issue may involve your building or local supply.
Bangkok Water Outages: How to Check Your Address
MWA’s outage lookup lists service notices by work location, affected area, and responsible branch. Because it may not search individual house numbers, match your address to nearby streets and the branch named in the notice.
Search by branch, road, and nearby soi
Open MWA’s official ระบบแจ้งพื้นที่น้ำไม่ไหล outage lookup. Check the branch or service area associated with your neighborhood, then review the outage notices. The page lists details such as the work date, job description, work location, affected area, and affected branch.
Use this sequence to check your location:
- Find the branch that serves your neighborhood, or scan the affected-branch listings for a familiar name.
- Search or scan the notice details for your road, soi, district, or a nearby landmark. If the page has no search field, use your browser’s Find function to look for a street name.
- Compare the listed area with your actual location. A condo may be identified by its road or soi rather than its building name, while a house or business may fall within a listed road segment or nearby side street.
MWA notices often describe a corridor or group of affected streets, not a single address. So, check nearby sois and landmarks as well as the exact road name. A notice for the same district may still cover a different section of the road, so look for boundaries, intersections, or soi numbers before deciding your building is included.
An exact house-number search may not be available. If the notice names your branch but not your street, check the surrounding area and confirm with MWA onMobile or the 24-hour Call Center at 1125.
Read the outage time and service details
Each notice separates the work location from the affected area. The work location tells you where MWA crews will carry out the job; the affected-area field identifies streets or neighborhoods that may lose service. Your building can be affected even when crews are working somewhere else.
Next, note the work date and the stated start and end times. Read the service description carefully, too. It may describe no water, low pressure, or another disruption, so don’t assume every notice means a complete shutoff.
Water service may take time to return after the listed work ends. Crews may need to finish the repair and restore the network before pressure stabilizes, so the end time isn’t a guaranteed minute when your tap will run normally. If service remains disrupted, or the notice doesn’t make clear whether your address is covered, contact MWA at 1125 for confirmation.
Use MWA alerts and contact channels to confirm a disruption
If the outage map is missing a notice or the location is hard to match, check with MWA before assuming your building is affected. You can confirm coverage by phone, sign up for text alerts, or follow MWA’s app and LINE updates.
What to have ready before contacting MWA
Call the MWA Call Center at 1125, which is available 24 hours a day. Give the operator your full address, including the district, road, and soi. A nearby landmark can help clarify a location when street names are similar or a building sits near a boundary.
If you have them, provide your customer number or water meter details. Explain whether you have no water or weak pressure, and when the problem began. Then ask whether your address appears under another MWA branch or service zone. A notice may list a branch or nearby street rather than your exact building.
Residents can also register for free SMS alerts about water stoppages through their local MWA branch or by calling 1125. This is useful if you want notices sent to your phone instead of checking the map repeatedly. For mobile updates, MWA onMobile provides service notices for areas with no water or low pressure. MWA Line Connect, available through the official LINE account @MWAthailand, is another way to follow service updates.
Check official updates when the notice is not in English
MWA notices may list Thai road, district, and soi names, so compare those details carefully with the spelling and location used in your address. Translation can help, but it may not distinguish between similarly named roads or different sections of one road. If you’re unsure, send MWA the Thai location name or ask the call center to confirm whether the notice covers your address.
These terms can help you identify the type of disruption:
- น้ำไม่ไหล means no water flow.
- น้ำไหลอ่อน means low water pressure or weak flow.
- หยุดจ่ายน้ำชั่วคราว means a temporary water shutoff.
Match the Thai road and soi names, not just the district. If the notice is difficult to read or its affected-area details remain unclear, call 1125 and ask MWA to confirm the location and expected service status.
Tell an MWA outage from a building plumbing problem
When water stops or pressure drops, check whether the problem affects nearby properties before assuming the cause. A matching MWA notice or reports from neighbors can point to a network interruption; normal service nearby often suggests a problem inside your building.
Look for signs of a planned service interruption
MWA notices commonly cover pipeline connection work, pipe maintenance, pressure adjustments, and work at pumping stations or water treatment plants. Some repairs address urgent pipe bursts, while planned jobs may require a temporary shutdown. Check the MWA service alert page and compare the stated work window with the affected streets or sois.
The work location and affected area may be different. Crews could be repairing a main pipe on one road while nearby streets lose water or experience low pressure. If the notice lists your road, soi, or area and the timing matches your outage, the network is a likely cause. However, a notice for the same district alone doesn’t confirm that your address is covered.
Ask neighbors, building security, or the juristic office whether other homes or units have the same problem. If several nearby properties report no water at once, contact MWA at 1125 to confirm whether an unlisted outage or repair affects the area.
Know when to report a separate water problem
If nearby homes have normal water service, ask your landlord or building manager to check whether the issue affects one unit or the whole property. They can review internal valves, pumps, storage tanks, and maintenance notices. Don’t open equipment or attempt repairs yourself; building water systems may require a qualified technician.
In a condo, one unit with weak pressure may point to a local valve or plumbing fault, while several units in the same building may indicate a shared pump, tank, or maintenance issue. Plumbing and storage conditions can also affect water at the tap, as explained in this guide to home water filters in Thailand.
Contact MWA if there’s no relevant notice and the outage affects neighboring properties, or if you suspect a burst pipe or ongoing network problem. Share your address, the time service stopped, and whether you have no water or low pressure. If only your unit or building is affected, ask management to investigate first, then follow up with MWA if they suspect a supply-side fault.
Prepare your home before the water goes off
Once an MWA notice matches your address, prepare for the full service window, even if it lists low pressure rather than a complete shutoff. A little planning helps you avoid relying on a tap that may only trickle.
Plan for low pressure as well as a full shutoff
MWA notices may warn of weak flow, not just no water. During the listed window, don’t count on normal tap pressure for drinking, cooking, bathing, or other essential needs. If you rely on water for medication, infant care, or another daily need, set aside a modest backup in advance.
Fill clean containers with water and keep them covered. Store drinking and cooking water separately from water reserved for toilet flushing or basic cleaning. You can use buckets or other suitable containers for non-drinking tasks, but label them so you don’t mix up their intended use. For more preparation ideas, see this guide to household water supplies for emergencies.
Before the notice begins, wash dishes, prepare food, shower, and take care of laundry if needed. These tasks are easier while the supply is running normally. Keep stored water accessible, but use it carefully so you have enough for essential needs until service returns. Municipal guidance also recommends planning ahead for water supply interruptions.
If you live in a condo or apartment, ask the building manager whether the property has a storage tank and how long it can support residents during an interruption. A tank may help maintain supply, but don’t assume it will provide normal pressure or meet every unit’s needs. Buildings with pumps may also be affected if water levels or power supply limit their operation.
After the announced work ends, check your taps before using stored water for nonessential tasks. Service may not return at the exact end time shown in the notice, so keep some backup available until normal flow resumes.
Frequently Asked Questions
MWA notices can help you narrow down the cause of a water problem, but they may not answer every address-specific question. These quick answers cover details that are easy to miss when you check an outage listing.
Does the MWA outage search let me check an exact house number?
Usually, the outage search lists affected areas by branch, road, soi, or nearby boundaries rather than by individual house number. Check the location details around your address, including the road segment and nearby intersections, before deciding whether the notice applies. If the listing is still unclear, give MWA your full address and ask the call center to confirm.
Does MWA serve every area in Bangkok?
MWA supplies water in Bangkok and the nearby provinces of Nonthaburi and Samut Prakan. However, a Bangkok address alone doesn’t confirm that MWA supplies your property, since service coverage can vary by location. Check a recent water bill or ask your building manager which provider serves the property before relying on an MWA notice.
What does low water pressure mean in an MWA notice?
Low pressure means water may still come from your taps, but the flow is weaker than usual. Depending on the affected area and conditions, service can range from a weak stream to little or no flow, and upper floors may notice the change first. Follow the notice’s timing and prepare as you would for a possible interruption.
What should I do if my street is not listed?
First, check the notice under the correct MWA branch and look for nearby roads, sois, or landmarks. Also review current MWA updates, since a notice may describe an affected area without naming every street. If the problem continues or neighbors have the same issue, call 1125 with your full address and explain when the water changed.
Can I sign up for text alerts about water outages?
Yes. MWA guidance says residents can register for free SMS outage alerts through their local branch or by calling the 24-hour MWA Call Center at 1125. When you register, confirm that MWA has the correct phone number and service address so alerts match your location.
