Dear Khun Meaw,
May I know what precaution your installation team is taking to ensure there is no damage to NI properties while the pipe works are being done. Can you share the work plan?
Must ensure, no residual water from the pipe flows back and onto the office or surrounding area.
Dust and rust particles , oil, grease, worker’s foot prints, finger prints on our furniture and ceilings are all taken care of and is not left behind.
Will your team’s supervisor or technician be on standby?