1. Acceptance of Terms

By accessing or using the calculators, data indices, and materials provided on US Cost Index ("the Website"), you agree to be bound by these Terms of Service. If you do not agree to these terms, please do not use the Website.

2. Estimating & Engineering Disclaimer

All calculations, equipment sizing suggestions, and price ranges provided by US Cost Index are computational approximations based on statistical averages from U.S. federal databases (including the BLS, DOE, and EIA). Actual contractor quotes may vary based on unique architectural characteristics, accessibility, regional permit nuances, local equipment availability, and contractor overhead.

US Cost Index calculations do not constitute binding contractor bids, architectural stamps, or certified engineering load specifications (such as a certified ACCA Manual J/S/D report). Homeowners must obtain formal in-person evaluations from licensed, bonded, and insured contractors prior to purchasing equipment or executing construction contracts.

3. Intellectual Property

The proprietary calculation engines, user interfaces, branding, and aggregated data models displayed on this website are the intellectual property of US Cost Index and may not be scraped, redistributed, or embedded without prior written authorization.