How HomeGPA scores your home
HomeGPA gives your home a letter grade across six categories using a standardized scoring model. Your answers about your home's systems, age, and habits feed a category-by-category score, which we then roll up into one overall grade.
How we weight each category
Not every category affects a home equally. We weight categories by their typical impact on recurring cost, health, and risk. Weights shown are maximums applied within our standardized model.
Energy
Energy is the largest controllable recurring cost in a typical home — HVAC, water heating, and electricity drive monthly bills more than almost any other system.
Air Quality
Indoor air directly affects health, allergies, and comfort, and is one of the most overlooked factors in home performance.
Maintenance
Deferred maintenance compounds. Catching wear early protects every other system from larger, more expensive failures.
Safety
Everyday safety factors — electrical, fire, security, fall risks — protect the people living in the home, not just the structure.
Weather Readiness
Storms, outages, and severe weather test how prepared a home is. Resilience reduces damage, downtime, and insurance exposure.
Water
Water quality, heating, and waste affect health and bills, but generally has lower recurring cost impact than energy in most U.S. homes.
Our independence & how we're funded
HomeGPA is operated by Gambol Home. HomeGPA earns money by connecting homeowners with vetted local providers when they choose to take action on their roadmap.
The scoring model is standardized. It is not adjusted to favor any single provider, product category, or service — including services Gambol Home offers. The same inputs produce the same grade no matter which provider, if any, you ultimately work with.
We make these choices transparent because trust matters. If we ever change how categories are weighted, we'll update this page.
Important
HomeGPA is a home-performance benchmark. It is not a substitute for a professional inspection, appraisal, engineering report, or insurance evaluation. Use your grade and roadmap as a starting point — not as a regulatory, financial, or insurance determination.