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Home Energy Score Estimator
The U.S. Department of Energy's official Home Energy Score requires an on-site visit from a certified assessor. This quick self-assessment gives you a rough 1–10 efficiency indicator based on your home's age, insulation, HVAC, and windows — a starting point before booking an official assessment.
Example: A home built in the early 2000s with average insulation, a mid-age HVAC system, and double-pane windows scores about 6 / 10 — solidly average, with insulation and windows as the easiest upgrades.
What can change the math
- This is a simplified DIY self-assessment, not the official DOE Home Energy Score — that score requires an on-site visit from a certified assessor using specialized modeling software.
- The official score also factors in your specific climate zone, home size, and duct/air-sealing quality, none of which this quick check captures.
- Use this as a rough starting point to decide whether an official assessment — often free or subsidized through local utility programs — is worth booking.
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Frequently asked questions
Is this the official DOE Home Energy Score?
No. The official 1–10 Home Energy Score is issued only after an on-site visit from a DOE-certified assessor. This tool gives a rough self-estimate from four simple factors so you know roughly where you stand.
How do I get the official Home Energy Score for my home?
Search for a certified assessor through the Department of Energy's Home Energy Score program — many utilities offer free or discounted assessments.
What improves a home's energy score the most?
Upgrading an old, inefficient HVAC system and adding insulation typically move the needle the most, followed by replacing single-pane windows with double-pane or low-E glass.