These guys have a huge piece of equipment that has straightened a 94 F-150 (bent when I got it), so I took them my Yukon after my son slid into a high curb bending its frame.
The F-150 drove great for years after, the Yukon now drives great.
If an alignment shop can not examine and correct the frame, then you never know if you are starting from a good place.
By today's standards both my vehicles were totalled, but FAR cheaper to have them repair them.
FYI, they do other work too: the F-150 needed an exhaust manifold and front seal, they replaced while they had it.