That we are authorized by Sub-Zero. We are not, and we will not imply it. Authorization is a commercial relationship with the manufacturer and it matters mainly for in-warranty claims. Out of warranty, what matters is whether the technician knows the equipment and stands behind the work.
That the manufacturer taught us anything. We have no training relationship with them, no certification from them, and no authorization by them, and we will not imply one. Those three words are used so loosely in this industry that they have stopped carrying information.
A firm price before anybody has seen the unit. The same symptom has causes that differ by a factor of ten. A confident number over the phone is a number designed to win a booking, not to be accurate.
Instructions for work that should not be done at home. Refrigerant handling, live electrical work and anything behind a panel with stored energy in it. Where a guide reaches that point it says so and stops — we would rather lose the page view than have somebody hurt following it.