On Sat, 24 May 2014 17:40:33 -0700 (PDT), wrote:

Much of these tests can be done by you. Anytime, and things can be
fixed easily. One at a time. Examine your home and find leaks in
energy, etc.

Yes, I agree, but given that I qualified for a free energy audit, I figure it can't hurt to get an outside opinion. That said, my question is that I'm not sure I should do it now, or wait till winter.

My guess and only speaking for myself - the sooner the better. Wasting
energy until winter serves what purpose? Only you can decide.