SoCal contractor who installs separate meters in each apartment?

[Richard Kolostian]

My mother has a 4-unit building in SoCal. She pays the water and electricity, and there is only one meter for each of those utilities in the building. I'd like to have separate meters installed for each unit, to track usage, and to "uninclude" (for lack of a better word) utilities for a new tenant in the future. Is there a contractor in SoCal who can install separate water and electricity meters for each of the 4 units?

Any information and/or contacts would be most appreciated. Thanks in advance.

[James Qiu]

@Richard Kolostian @Cat R. any licensed plumber should be able to install a water meter for you as long as the supply lines to each unit are separate and easily accessible. You can search on Amazon for "Lead Free Potable Water Meter" or "NSF61 Water Meter".  For electric, if each unit has a separate sub-panel, you can get a TED monitor (eg. https://www.amazon.com/TED-Pro-Home-Electricity-Monitor/dp/B00XTU9RF2) for each one of them by monitoring the supply line usage via your computer or phone. You might want to put a lock on the panel doors, so the tenant don't "accidentally" disconnect the sensor.