Guide

What should an HVAC replacement quote include?

A complete quote says exactly what work you are buying. Here are the 14 things it should cover, and the question to ask when one is missing.

Short answer: a complete HVAC replacement quote names the exact equipment, explains how it was sized, and lists every part of the job: permit, ductwork, refrigerant lines, electrical work, drainage, start-up checks, removal of the old unit and the warranty, each with its own price or clearly marked as included.

Two quotes can be thousands of dollars apart simply because one leaves out work the other includes. Before you compare totals, check that each quote covers the same scope. The checklist below is the one our checker scores.

The 14 items a complete quote covers

How the system was sized: a load calculation (Manual J) or another written method Check it in your quote
The permit and inspection, who pulls it, and whether it is in the price Check it in your quote
What will be done to the ducts: inspection, testing, sealing or changes Check it in your quote
Start-up and commissioning: refrigerant charge and airflow checked and recorded Check it in your quote
Itemized pricing: equipment, labor and extras on separate lines Check it in your quote
Exact brands and model numbers for every major component Check it in your quote
The refrigerant line set: replaced, or cleaned and pressure-tested Check it in your quote
Electrical work: disconnect, breaker and wiring Check it in your quote
The contractor's licence number Check it in your quote
Parts and labor warranty terms, in writing Check it in your quote
Removal and disposal of the old equipment Check it in your quote
A condensate drain and overflow safety switch Check it in your quote
The thermostat: included, reused or compatible Check it in your quote
A pad or bracket for the outdoor unit Check it in your quote

Why sizing and the permit matter most

Equipment that is too large or too small for the house costs comfort, efficiency and equipment life. The U.S. Department of Energy notes that contractors sometimes oversize systems because they use rules of thumb instead of a load calculation. ACCA Manual J is the standard residential method, and building codes in most places require a proper load calculation.

A permit means the work gets inspected. Unpermitted work can cause problems with insurance claims and when you sell the house. The contractor normally pulls the permit; being asked to pull it yourself is a warning sign.

The lines that are easiest to leave out

Line sets, electrical work, the condensate drain, the thermostat and removal of the old unit are often treated as extras. When a quote is silent on them, they may be added later as change orders, or skipped. Ask for each one in writing: included, not needed, or priced separately.

Start-up checks are invisible once the job is done, which is exactly why they belong in the quote. ENERGY STAR's quality-installation guidance focuses on correct sizing, correct refrigerant charge, adequate airflow and sealed ducts.

Questions about this guide

Does a longer quote mean a better contractor?

Not necessarily. Length is not quality. What matters is whether each of the 14 items is addressed clearly, so you can compare quotes on equal scope.

Should every item have its own price?

Equipment, labor and extras should be separate so you can compare quotes. Small items can be marked as included in the total, as long as the quote says so.

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Reviewed by QuoteLoupe Editorial Team