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AC Quotes: What to Compare Before Choosing an HVAC Contractor

Quick Answer
When comparing AC quotes, look beyond the bottom line. Compare equipment make and model, capacity, efficiency rating, included ductwork or electrical work, thermostat, permits, warranty on equipment and labor, and financing terms.
Key Takeaways
  • Always compare the same equipment tier across quotes
  • Confirm what's NOT included in each quote
  • Ask about labor warranty separately from equipment
  • Confirm permits and inspections are part of the price

What a complete AC quote should show

Equipment make and model, system capacity (in tons or BTUs), SEER2 efficiency rating, line-item labor, ductwork or electrical adjustments, permits, the included thermostat, removal of the old system, start-up and commissioning, and the warranty on both equipment and labor.

Common omissions to watch for

Permits, ductwork repairs, electrical upgrades, condensate pump or pan, a new pad or platform, surge protection, and labor warranty terms. If any of those are missing, ask — they're often the source of change orders.

Questions to ask an HVAC contractor

  1. Are you licensed and insured to perform HVAC installation in my state?
  2. What system did you recommend and why?
  3. Did you run a load calculation for my home?
  4. What's included in the installation — equipment, labor, permits, thermostat, removal of the old system?
  5. What warranty applies to equipment and labor, and how long does it last?
  6. How do you handle ductwork issues that come up during installation?
  7. Is there a discount, financing, or seasonal promotion that applies?
  8. How will you protect my home during installation, and how long will the work take?

Ready to compare options?

Answer a few questions about your home and timeline, and HSRC can help connect you with a local licensed HVAC contractor.

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Frequently asked questions

How many AC quotes should I get?

Two to three is a good baseline. More than that can slow you down without much added clarity.

Are AC quotes free?

Many contractors provide quotes at no cost, but policies vary. Confirm before scheduling.

What if quotes vary a lot?

Big differences usually trace to equipment tier, ductwork scope, or labor warranty. Ask each contractor to explain their assumptions.

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Editorially reviewedBy the Home Services Resource Center Editorial TeamLast reviewed:

This guide is written to help homeowners understand common HVAC repair, installation, replacement, and quote considerations. It is educational and is not a substitute for an on-site evaluation by a licensed HVAC contractor. HSRC does not perform work directly, set contractor pricing, or guarantee availability — services and response times vary by location and provider.

Why Homeowners Use HSRC

A Clearer Way to Compare HVAC Installation Options

  • • Learn what affects AC and furnace installation decisions
  • • Understand repair vs. replacement considerations
  • • Prepare better questions before speaking with a contractor
  • • Use call or form options based on urgency
  • • Get connected with local licensed HVAC contractors
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Home Services Resource Center provides homeowner-friendly information and helps connect consumers with independent local service providers. HSRC does not perform HVAC work directly, set contractor pricing, or guarantee availability. Services, pricing, licensing, and response times may vary by location and provider.

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