Ask Green Home Helper
Green Home Predictor
For Homeowners, Buyers & Sellers
Choose How to Start
Before an Energy Assessment
Explore the home’s potential—no appointment needed.
Enter what you know about the home to see a preliminary GHP Score and identify improvements worth discussing with a contractor before an official assessment.
Not sure? Choose Unknown.
After an Energy Assessment
Turn your report into a plan.
Upload your Home Energy Score or other audit PDF to pre-fill available Home Facts. Review the entries, add details you know, and build a prioritized improvement plan to discuss with contractors.
Works best with Home Energy Score reports. Other formats may need more manual entry.
Explore What You Need to Know to Use GHP
No signup required. No property data to enter. Just explore the workflow.
Use the GHP Field Guide →
New: Budget Plan can now show preliminary cost ranges for selected upgrades using national retrofit-cost data updated to 2026 dollars; contractor quotes are still required.
Smart Homeowners & Pros Plan First
Planning Better Retrofits Together
Successful home upgrades depend on clear facts, sensible project sequencing, and realistic expectations. Our 3-step retrofit process helps homeowners and contractors align on what to do first, how to budget, and how to deliver lasting comfort and efficiency.
- 1. Score the Home: Establish a clear baseline of home facts, energy performance, and comfort issues before committing to major contractor bids.
- 2. Explore Options: Identify priority upgrades, estimate potential savings, and map out available rebates, incentives, and financing pathways.
- 3. Renew the Core: Sequence work logically—air sealing leaks and upgrading insulation first, then right-sizing heating and cooling systems for maximum performance.
- Clear Communication & Execution: Homeowners get predictable results without unexpected costs, while contractors work from better-defined project scopes.