Ranked & Reviewed
Best HVAC Companies of 2026
Find top-rated hvac providers. Compare providers and learn how they can help you achieve your goals.
HVAC Guides by City
Pick your state on the map to see our local hvac guides. Each one covers the pests common in that area, when they are most active, and what to know before hiring a company.
Free HVAC Tools
Get a realistic cost range and the right system size before you take a single quote.
HVAC Replacement Cost Calculator
Estimate a new AC, furnace, heat pump, or full system from your home size, efficiency, and ductwork, with 2026 cost ranges.
Estimate the cost → CalculatorHVAC Sizing Calculator
Turn your square footage and climate into a rough tonnage and BTU target, so you can catch a system that is oversized or undersized.
Size your system → CalculatorHVAC Quote Comparison Calculator
Put up to three contractor bids side by side on cost per ton, with flags for efficiency below your region's minimum and a missing labor warranty.
Compare your quotes →HVAC Guides
The three decisions that actually determine what you pay and how long the system lasts.
Repair or Replace?
The $5,000 rule and what it misses, how long systems really last, and the failures that settle the question on their own.
Read the guide → GuideChoosing an HVAC Contractor
Why the load calculation matters more than the brand, how to verify a license, and the contract terms to read before signing.
Read the guide → GuideSEER2 Ratings Explained
Your region's minimum, why the numbers dropped when the rating changed, and when a higher rating actually pays for itself.
Read the guide →About HVAC
An HVAC job is priced locally, not off a national price tag. What you pay to replace a furnace, air conditioner, or heat pump depends on the system type and its size (measured in tons or BTUs), the efficiency rating (SEER2 and AFUE), whether the ductwork needs work, and, more than anything, local labor rates and your climate. A 3-ton system that runs one price in a mild market costs more where summers are brutal and the load calculation pushes you to a larger unit.
Our guides break down where the money actually goes on an HVAC project, how to size a system so you are not oversold, and how to tell a repair from a replacement, with cost pages built for individual cities so the numbers reflect your area rather than a national average. We are an independent guide: we do not sell, install, or service equipment.
Our Methodology
Our HVAC cost estimates are built from published contractor cost data, manufacturer equipment specifications, and regional labor differences, then adjusted by city. Sizing guidance follows the standard load and square-footage rules of thumb, with the clear caveat that a proper Manual J load calculation from a licensed contractor is what should size the final system.
We are independent and do not sell, install, or repair HVAC equipment, so nothing here is a sales pitch for a brand or a contractor. Where a figure is a range or a rule of thumb rather than a firm quote, we say so.