Guide
HVAC estimate breakdown: what to include
A complete HVAC estimate covers the equipment, the labor, the startup, the permit, and the warranty terms. Here is what each section should say.
Equipment specification — brand, model, and SEER rating
The most important section of an HVAC estimate. List the exact equipment: manufacturer, model number, BTU (or ton) size, SEER2 rating, and any matched system components (air handler, coil, thermostat). Customers who get two HVAC quotes compare them side by side — if your equipment is better, the spec shows it. If they are the same brand and model, your labor and service reputation are the differentiator.
Labor: installation, line set, and electrical
Break out installation labor from the line set run and electrical connection. A standard split-system install in an existing mechanical space is different from a rooftop package unit with new ductwork penetrations. Listing these separately lets customers see what they are paying for and gives you a paper trail if scope changes during installation.
Refrigerant and startup
List refrigerant separately — it is a regulated material with a real market cost. Include system startup as a line item: charging the system, verifying superheat and subcooling, confirming airflow, and walking the customer through operation. Customers do not know this step exists until they see it on the estimate — then they appreciate the thoroughness.
Ductwork — modification, replacement, or new
If ductwork is in scope, itemize it. Replacing a plenum, adding a supply register, or sealing leaky returns are all distinct tasks with different labor profiles. Vague ductwork lines — "duct repair" — are the most common source of HVAC disputes.
Permit and inspection
Most jurisdictions require a permit for HVAC replacement and new installation. Always pull it, always list it as a separate pass-through line at actual cost. Some customers ask why they need a permit for a simple system swap — the answer is that an inspection protects them: an uninspected system that has a problem is a liability they own.
Warranty terms — equipment and labor separately
State the equipment manufacturer warranty (typically 5–10 years on parts with registration) and your labor warranty separately. "1-year labor warranty on all installations" is standard. Note any conditions — warranty is void if the equipment is not registered within 30 days, or if a third party modifies the system.
Disposal and haul-away
Refrigerant recovery is required by law before any equipment is removed. List it explicitly — it signals to the customer that you operate legally and professionally. Include haul-away of the old equipment as a separate line. Customers assume it is included; writing it out prevents the "what happened to my old unit" question.
HVAC estimate checklist
- • Equipment: manufacturer, model, BTU/ton, SEER2
- • Air handler or furnace spec if matched system
- • Line set length and type
- • Installation labor (broken out from accessories)
- • Refrigerant type and estimated charge
- • System startup and commissioning
- • Ductwork modifications (if any)
- • Thermostat — brand and model
- • Electrical disconnect and wiring (if in scope)
- • Permit as pass-through
- • Refrigerant recovery and equipment haul-away
- • Equipment warranty (manufacturer) and labor warranty
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