Comparison • Insulation & Air Sealing
Spray Foam vs Fiberglass Insulation
A plain-English comparison of spray foam and fiberglass for homeowners planning energy upgrades.
How to read this comparison
This comparison is designed to help you ask better questions. The right choice depends on your home, budget, comfort expectations and local rules.
Decision tip
Ask each provider to explain not only what they recommend, but what they ruled out and why. That answer often reveals whether the proposal fits your actual goal.
Important: Home energy upgrades can involve electrical work, permits, building codes, utility rules and safety risks. Use this page as a planning aid and confirm details with licensed professionals and official documents.