What else can you get?
We can :
get your furnace going when it has not heating, or insufficiently
put a new furnace in
hook up your dryer
hook up your range (stove)
hook up your hot water heater (tank)
any of the above gas piping and more
put in a new thermostat (or one you've bought)
check and clean your furnace
fix your humidifier or do a new one
get the a/c going in summertime
install a new A/C (central air)
service or clean your A/C
Seasonally:
central air repairs
new central air
check & clean central air
ductless A/C
move a central air
furnace and central air
any of the previous items