The most expensive furnace you will ever buy is the one you buy at midnight in January. Bring the invoices, permits and warranty papers you already have and they become a full report on every system in the house: how old each one is against how long it should last, what is due next, and what it is likely to cost.

Your first report on your home is free and it is the whole report, not a sample. Nothing is held back from what it says and no card is asked for. It needs an account because the report is saved to it, so you can reopen it whenever you want or delete it. It is marked and view only: you read it here, and downloading, printing and handing it to somebody open with a membership, because the copy a buyer or a lender relies on is the paid one.

The free report is what your paperwork can prove today. The membership is what happens next: your furnace technician, your electrician, your roofer log the visit and the readings from the field, signed, and it lands on your record without you chasing a receipt. Readings across visits become a trend, so a part drifting out of range shows up long before the house goes cold.

It is also what you hand over when you sell. The record transfers with the house, and a buyer who can see six years of maintenance is a buyer with less to argue about. , cancel any time.