Ice nights are when your answering setup gets its real grade
A hard freeze concentrates a large share of your annual emergency demand into a few hours, and whatever your phone does that night is what you actually have.
Real winters and ice are ordinary in Middle Tennessee. On those nights the calls arrive in a cluster, they arrive outside business hours, and the caller will try the next company before your voicemail finishes.
Decide in advance what happens. Who is on, in what rotation, what an overflow service is allowed to promise, and what the script says when the honest answer is tomorrow afternoon.
An answered call with a realistic wait beats an unanswered call every time. It also beats an over promise, because a missed window during a storm produces the cancellation and the review that follow you for a year.
Log the after hours misses. Most shops have never counted them, and the count is usually the largest single number in the whole conversion picture.
Have the freeze script written before December. Nobody composes a good one at four in the morning.