[Rubyredgold]

What would be the appox cost to change an Electric panel from 100 amp service to a 200 amp service?

 

[nap]

too little info but for parts I would budget around $500. Labor is free for DIY.

 

[CoconutPete]

Based on the information provided, somewhere between $500 and $5,000.

I just had mine done, but I have no idea if your area has similar pricing to mine.