Is blown-in wall insulation worth it for older homes when selling?
Verdict: YES — Yes — $1.50–$3.50/sqft retrofit cuts energy bills 20–30% in pre-1980 homes with empty wall cavities. Different math when you're listing in <12 months. ROI at resale is what matters, not lifetime savings.
Cost & payback at a glance
| Typical cost range | $2,500–$6,500 |
|---|---|
| Estimated annual benefit | $420/yr |
| Simple payback | ~11 years |
| System | insulation |
| Scenario | resale |
How HomeScore decides
HomeScore evaluates "is it worth it?" decisions across 40+ home systems using 2026 cost data, regional installer rates, lifespan modeling, and resale ROI. Every verdict on this page is anchored to the underlying replacement cost, annual operating savings, and the scenario you're in: general homeowner, in-2026 pricing, resale-driven, forever-home, or pre-1980 retrofit.