Looking to separate utilities in DC

[Maggie B.]

Hi all, 

Just bought a SFH with a finished basement apartment in DC. We would like to get a CofO (which it seems almost no one actually does in DC!). This is looking pretty pricey the more I get quotes and I'd appreciate any advice from someone who has done this.

I was recently quoted $4000 just to separately meter the electrical. We have a 200amp service (more than enough for the needs of the house) and were told that to separately meter we would have to get a heavy up permit for 250amps and then install a separate sub-panel for 50 amps for the basement unit. Fortunately the wiring is already on separate circuits for the basement, so no re-wiring needed. 

I was told by a co-worker that we can install a submeter on the sinks and shower and then take readings ourselves and figure the bill for the tenant. She says that is what she does for her basement apartment (which she says has a CofO). 

Anyone know of companies that can do all the submetering? Or what else is required for the CofO? 

Thanks!