Well, it was not, the unit is VERY old, the coil is leaking (directly into the electric furnace, but that's another story, it too is about 30 years old).

Looks like one valley + five stacks/vents to flash = materials about $80.  130 ft of drip edge flashing at $50.  2 coils of nails at $60.  

That often requires replacing or updating some items like outlets, faucets, have furnace cleaned, clean AC coils, new appliances, paint the property, etc.

Look at the coils and see if there is build up.

I knew what was wrong with the unit, the fan on the coil would not run, so I hooked up an external fan on top of the unit to pull air through the coil and we had AC.  

And with the alum. option, you'd need to add a nailer plate to attach the cross-beams to, which would increase the depth of the beam.

Just for a condenser and coil, single system? 

@James WiseCat’s claw, trim nailer, power tools, circular saw, all 50 lbs of it. checked it in.

PMs who take time to teach tenants how to change out the air filters or how to shut off the main water or how to reset the breaker that trips will not only reduce service calls but will keep capital expenses down (changing out air filters regularly can diminish the chances of having to replace the condenser coils, for example).Maintenance repair surcharges isn't the only charge owners should look for in their PM agreements, but it is one of the more important ones that often gets overlooked.  

Sure the shingles run a bit over $100 a sq , but you need felt paper , drip edge , flashing , coil nails , misc supplies , delivery , disposal costs , labor , insurance , sales commissions , overhead , whats left is profit , and it it runs around 20% .