Insulation issues with Masssave

Had masssave originally come out a year and a half ago and got some insulation work done in attic. The company that came kindof sucked and had to come back after a masssave inspection of their work. While the attic now seems to be fine, I have some major drafts and cold spots coming from other floors of the house and there is clearly insulation issues in other spots. I called masssave back and a guy reluctantly came to check it out. This was in November so it wasn’t that cold and he barely looked around and left and didn’t offer any form of work. Now that we’re in a cold spell my house is freezing and my electric bill is through the roof and I have no idea what to do. My hvac systems can’t keep up and I have no idea what the cause of all these drafts is. Should I hire a company and pay out of pocket or try calling masssave again?