independent garage-door workers, AFAIK.
They will quote you $295 for a garage-door-spring replacement, but when they
get here, will charge $350 instead. Supposedly these are higher-endurance springs
(a pair instead of one) but their quotes are crap, I feel mildly exploited.
The actual work is about an hour, and they probably use two springs because then
they don't have to stock multiple springs.
Caveat emptor.
