Why The Best Green Home Retrofits Start Here
Use the Green Home Predictor to turn basic home facts or an energy audit into a correctly ordered plan with air sealing, insulation and heating and cooling all working together according to building science principles.
What should happen first?
Air sealing, insulation, moisture, ventilation, and safety before a new heat pump.
What can wait?
Phase upgrades by budget, equipment life, and contractor availability.
What must be verified?
Electrical panel, ducts, air leakage, moisture, and envelope conditions.
Green Home Predictor: Start building your plan in less than 15 minutes
· Use what you already know ·
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.
Contractors: Explore what you need to know to use GHP
No signup required. No property data to enter. Just explore the workflow.
Explore the GHP Essentials →Need help collecting Home Facts?
Use the GHP Field Guide →
New
Prepare Contractor Quotes
See inside GHP after you select a project.
Explore the 3-Step Retrofit Course →
How it works
Score → Explore → Renew the Core
Start with what is known about the home. Explore the right improvements and their order. Then work with qualified professionals to move the project forward.
Understand
Score
Understand the home
Begin with Home Facts, a Home Energy Score, or another appropriate energy assessment. Green Home Predictor can also begin with a guided Home Snapshot before a formal assessment.
- Record what is already known.
- Flag what still needs confirmation.
- Identify what should be checked next.
Options and planning
Explore
Build a practical plan
Review possible improvements, decide what should happen first, and identify what can wait. Consider likely costs, available incentives, and the questions contractors still need to answer.
- Put improvements in the right order.
- Identify the trades and checks needed.
- Prepare the project for contractor pricing.
Green Home Predictor outputs
Take action
Renew the Core
Move the project forward
Bring in the right contractors and specialists to confirm conditions, finalize the scope, complete the work, and verify the results.
- Confirm site conditions and the final scope.
- Confirm equipment, pricing, and responsibilities.
- Install, test, and verify the completed work.