Editorial policy
Our goal is to give homeowners price ranges they can trust. This page explains where our numbers come from and how we keep them current.
Where our prices come from
- Published cost guides that compile contractor and project data, especially HomeGuide's 2025–2026 HVAC cost guides, along with brand-specific price guides.
- Government sources such as the U.S. Department of Energy (efficiency standards and energy-saving guidance), the U.S. EPA (refrigerants, indoor air quality) and the IRS (tax credits).
- Manufacturer and industry information for product lines, ratings and warranties.
Every guide lists its sources at the bottom. When sources differ, we show the range and explain what's included (for example, unit-only prices versus installed prices, or a simple replacement versus a full system with ductwork).
What our numbers mean
"Installed" means equipment plus typical labor and materials. "What most homeowners pay" is the typical range; the low and high ends show simpler and more complex projects. Prices are national; local labor rates, permits and code requirements can move a quote up or down.
How we write and update guides
Guides are organized around the questions homeowners ask most, based on search research. We use software tools, including AI writing assistants, to help draft and organize content. Every price figure is taken from a cited source and checked against it before publication. Each page shows its last update date, and we review guides as new data is published.
Our calculators
The HVAC cost calculator and AC size calculator use the same published ranges and simple rules of thumb, explained on each tool's page. They are planning tools, not quotes or engineering load calculations.
Independence
We do not accept payment from contractors or manufacturers in exchange for coverage or favorable treatment. Ads are served by Google and are separate from our content.
Corrections
Email agenciadedisenowebgenesis@gmail.com with the page and the issue.