Reading the quote

The contractor quote is the document that decides whether your heat pump install goes well or badly. Most of the failures we read about in the field trace back to choices made on that piece of paper, by people who did not know what to ask. We are going to walk through it.

What a good quote contains

Model numbers, by name, for the outdoor unit and every indoor head. Not the brand. The exact model. If the quote says only “Mitsubishi multi-zone system,” that is not a quote. That is an estimate. Ask for the model numbers, because the difference between a base-line and a cold-climate variant from the same manufacturer is real money and real performance.

A sizing logic. The good answer is a Manual J calculation, which is a room-by-room heat load analysis based on your specific house. The medium answer is a rule of thumb based on square footage that matches your climate zone. The bad answer is “we always put a three-ton in a house this size.” If the quote does not state the heating capacity at design temperature, in BTUs per hour, ask for it. Design temperature is the coldest day your area expects to see in a typical winter, and is published by ASHRAE for every zip code. The capacity at design temperature is what determines whether your house stays warm.

Line set length. The refrigerant lines between the outdoor and indoor units come at a per-foot cost. A quote should specify the length expected. If you are running long lines through multiple stories, that detail matters and should be visible.

Electrical work. The quote should call out whether a panel upgrade is needed, whether new dedicated circuits are being run, and what amperage. If the existing panel cannot accept the heat pump, the cost of upgrading it is not a small line item to discover after the install begins.

Backup heat strategy, if your climate calls for one. Electric resistance strips, a furnace kept in place, or none at all. This should be a decision, not an afterthought.

The total, broken out. Equipment cost, labor, electrical, permits, line set, and any other line items, each visible. A single lump-sum quote with no breakdown is harder to compare and harder to negotiate.

What vague lines mean

“Allowances” are line items that are not yet priced. They are placeholders. Common allowances are for electrical work, drywall repair, or condensate drainage. They are not a problem, but they are a question. Ask what the allowance is based on and what triggers a change order. The honest contractor will tell you the most likely outcome and the worst case. The less honest contractor will quote a low allowance to land the deal and bill the real number later.

“Standard installation” is a phrase to ask about. It usually has a specific meaning to the contractor and a different meaning to you. Ask what it includes and, more importantly, what it does not.

The three questions to ask before you sign

What is the heating capacity at design temperature, and how did you calculate the system size? A good contractor answers this in two minutes, with paperwork.

Which cold-climate models did you consider, and why this one? A good contractor has a reason. A bad contractor has a relationship with a distributor.

What are the line items in the quote that are most likely to change between now and the final bill? A good contractor flags two or three. A bad contractor tells you the price is the price, until it is not.

If the quote answers these three questions clearly, you have a good contractor. The hardware is mostly figured out. The labor market is not. Spend the time on this part.