Water tank cleaning

Start at฿1,390/point

30-day workmanship warranty

About this service

Your household water—whether used for showering, cooking, or drinking—typically comes through a water storage tank. Over time, these tanks can accumulate sediment, rust, and even harmful bacteria if left uncleaned.

At ProChang, we offer professional water tank cleaning services by trained technicians equipped with the right tools and cleaning agents. Our process is thorough, safe, and efficient—ensuring your water tank is spotless without causing any damage.

✅ Deep cleaning in every corner
✅ Safe, non-toxic cleaning products
✅ Basic tank condition check included
✅ Quick, tidy service – no mess left behind

We recommend cleaning your water tank at least once or twice a year to maintain clean, healthy water for your entire family.

How every job is done

Scope and price confirmed before work starts — nothing added on site
Furniture covered and the work area protected before anything begins
Work done to our SOP by trained, background-checked technicians
Before and after photos filed with the job sheet, auditable later
Everything tested, the area cleared, and results explained before we leave

Area of service

ProChang Service Areas

ProChang is ready to provide professional technicians right to your home in nearby areas.
We are pleased to offer skilled and vetted technicians in the areas of Srinakarin, Bang Na, Prawet, and Suan Luang to help you with home repairs, including electrical, plumbing, or air conditioning services.

Initial Service Areas:

Srinakarin
Bang Na
Prawet
Suan Luang

If you are located in these areas, you can easily book our services through the ProChang app. We guarantee high-quality work every time, backed by our trusted team of professional technicians.

We have plans to expand our service areas in the near future. Stay tuned for updates as we continue to cover more areas soon

Step to booking

How to Book a Service with ProChang

Easy and Fast – Just 3 Simple Steps!

Choose Your Service: Select the type of service you need, whether it’s electrical work, plumbing, or air conditioning.
Pick Your Preferred Date and Time: Choose a convenient date and time for our technician to visit.
Confirm and Pay: Secure your booking with a safe and easy payment process.

That’s it! If you have any questions or need assistance, feel free to contact us now.

Service Warranty

ProChang Service Warranty

We are committed to providing the highest quality service to our customers. Therefore, we offer a service warranty to ensure that every service we provide is carefully maintained and inspected. If any issues arise after the service, as listed below, please contact us for further assistance.

Scope of Warranty
This warranty applies exclusively to services provided by technicians booked through the ProChang app. The warranty is valid only for the customer whose name and address appear on the warranty document and are consistent with the details in the quotation.
Warranty Period
The warranty period begins from the date of service completion and is valid for 90 days. It covers only repairs or corrections of defects resulting from the installation or work performed by the technicians.
Modifications and Approval
Any modifications, alterations, additions, or repairs made to the work after service completion must be pre-approved by the technicians through ProChang's official channels. Failure to obtain approval will immediately void the warranty.
Reporting Issues During Warranty Period
If the customer identifies any defects or damage covered by the warranty, they must notify ProChang's customer service within 7 days of discovering the issue. The technicians will then inspect and correct the issue as needed.
Inspection and Repair Process
If the inspection concludes that the damage is due to a defect in the installation, the technicians will repair the issue in accordance with the warranty terms at no additional cost, up to the service amount specified in the quotation. If the original product or part is unavailable, it will be replaced with a comparable item of similar value.
Warranty Exclusions
1. If the inspection determines that the damage was not caused by the technicians' work or was due to misuse, ProChang reserves the right to deny responsibility for that damage.
2. The following types of damage or defects are not covered by the warranty:
  - Improper use or failure to follow instructions provided by the technicians or the manufacturer.
  - Unauthorized modifications, repairs, or alterations made by third parties.
  - Damage caused by natural disasters or external factors beyond control, such as fire, flood, earthquake, etc.
  - Normal wear and tear over time or damage due to standard use.
  - Damage caused by third parties unrelated to the repair work.
Additional Repairs or Corrections
If a defect occurs within the warranty scope, the technicians will provide repairs free of charge. However, the correction will not extend the original warranty period.

Condition Of Service

ProChang Service Terms and Conditions

Appointment and Cancellation:
- Customers can schedule services through the ProChang app, and we will confirm the appointment via the system.
- If you wish to cancel or reschedule, please inform us at least 24 hours in advance to allow us to adjust our schedule accordingly.
Service Delivery:
- Our technicians will perform the service to the highest standards of safety and quality.
- The time required for each job may vary depending on the complexity. Our technicians will provide an estimate of the process and expected duration.
- If issues arise beyond the agreed scope of service, we will assess the situation and inform you of any additional charges before proceeding.
Service Guarantee:
- We offer a 30-day service guarantee from the date of completion. If any issues arise as a result of our work, you can contact us for a free correction.
- The guarantee does not cover misuse or damages caused by external factors beyond our control.
Responsibility for Property:
- Our technicians will handle your property with the utmost care during the service.
- ProChang will be responsible for any damage caused by technician negligence, within reasonable limits.
Payment:
- Payments can be made securely online after the service is completed.
- ProChang reserves the right to adjust pricing if there are changes to the scope of work, with customer approval before any additional work is carried out.