Others have covered the sorting part well, so here's what I'd add: what to actually send to the quiet pile.
A text that names the specific job tends to get more replies than "just checking in." Something like:
"Hi Lisa, it's [Name] from Prime Air. Still thinking over the heat pump quote from August? Happy to answer questions or hold an install slot before it gets cold. Reply STOP to opt out."
Since you offer two financing options, a second touch a week later could lead with that: "If the upfront cost is what's holding you back, we have two financing options that turn it into a monthly payment. Want me to send the numbers?"
Out of curiosity, how many of your summer replacement quotes never got a clear yes or no?
