Blown-In Insulation vs Fiberglass Batt Insulation
Side-by-side specs, cost, and best-use cases for South Florida homes — so you can choose the right insulation without the sales pressure.
Blown-In Insulation vs Fiberglass Batt Insulation, compared.
| Spec | Blown-In Insulation | Fiberglass Batt Insulation |
|---|---|---|
| R-value | R-2.2 to R-3.8 / inch | R-13 to R-30 (batt) |
| Air sealing | Limited — filters air, doesn't block it | Limited — filters air, doesn't block it |
| Moisture resistance | Varies by material | Varies by material |
| Best for | Lowest installed cost per R-value of any insulation. | Lowest cost per R-value of any insulation — affordable code compliance. |
| Cost range | $1,500–$4,000 | $1,000–$7,000 |
Choose Blown-In Insulation if…
- Lowest installed cost per R-value of any insulation.
- Fills gaps and voids that batt insulation misses.
- Fast installation — most attics done in a single day.
- Available in fiberglass or cellulose to match the application.
Choose Fiberglass Batt Insulation if…
- Lowest cost per R-value of any insulation — affordable code compliance.
- Faced batts include a built-in vapor retarder for humid South Florida walls.
- Ideal for open wall cavities, floor joists, and knee walls during remodels.
- Non-combustible — fiberglass won't burn or contribute to flame spread.
Blown-In Insulation vs Fiberglass Batt Insulation in every city.
We put the risk on us, not you.
The barrier between you and comfort shouldn't be money or trust. We remove both — with financing, a lifetime warranty, and proof you can see.
Lifetime Workmanship Warranty
Every seal we install is guaranteed for the life of the home. If it ever fails, we fix it free — no fine print.
Flexible Financing
Spread the cost over 12–60 months with low-interest options. Most homeowners pay less per month than they save on cooling.
Same-Week Inspection
Quote today, FLIR inspection this week. We don't make you wait to start saving.
Documented Savings
Before-and-after infrared proof. You see the sealed shield in thermal imaging before you ever pay the balance.
Ready to remove the barrier?
60-second quote. No call required. No obligation.
The questions Boca, Delray & Boynton actually ask.
It depends on your goal. Blown-In Insulation lowest installed cost per r-value of any insulation.. Fiberglass Batt Insulation lowest cost per r-value of any insulation — affordable code compliance.. Many South Florida homes benefit from both — we spec the right mix after a free FLIR inspection. Call (561) 654-7698.
Pricing depends on scope and square footage, but generally Fiberglass Batt Insulation costs more upfront and delivers higher performance. We give an instant itemized quote by ZIP code so you can compare real numbers for your home.
Yes — and we often do. Layering complementary systems (for example, spray foam plus a radiant barrier) outperforms either alone in South Florida's heat. We'll recommend the right combination after inspecting your home.
Serving the Boca–Delray–Boynton corridor.
From the Boca inlet to Boynton's western estates — every hot zone below is a home we sealed this year. This is our local service area.
