Why blown-in works for Boca homes
Boca Raton attics are full of obstacles — tray and cathedral ceilings, recessed lighting, HVAC platforms, and irregular framing in custom homes. Blown-in fiberglass flows around all of it for a seamless, gap-free blanket that hand-cut batts can't match.
Topping up what you already have
If your Boca attic has settled or thin insulation that's dry and clean, we can often blow new fiberglass right over it to reach R-38 to R-49 — the fastest, most affordable path to a cooler home. If the existing material is wet, matted, or contaminated, we remove it first.
Blown right, so it stays put
We install baffles at the eaves so blown fiberglass never blocks Boca's soffit ventilation, and we hit consistent settled depth across the whole attic so there are no thin spots over your bedrooms.
Insulation costs in Boca Raton
Installed pricing depends on square footage, target R-value, attic access, roof type, and whether old material has to come out first. Here is where installed pricing generally lands in Palm Beach County — and we itemize every quote so you can compare honestly.
| Material | Installed cost | R-value / inch | Service life |
|---|---|---|---|
| Blown-in fiberglass | $1.10–$2.00/sq ft | R-2.2–R-2.7 | 20–30 yrs |
| Fiberglass batts | $0.90–$2.10/sq ft | R-3.1–R-4.3 | 25+ yrs |
| Open-cell spray foam | $1.50–$3.20/sq ft | R-3.6–R-3.8 | 80+ yrs |
| Closed-cell spray foam | $2.40–$4.90/sq ft | R-6.0–R-7.0 | 80+ yrs |
| Insulation removal | $1.10–$2.90/sq ft | — | One-time |
Boca Raton is in Palm Beach County — IECC climate zone 1A, the hottest zone in the continental U.S. The recommended attic target here is R-38 to R-49, roughly 12 to 15.5 inches of blown fiberglass at settled depth. Many older East Boca homes still sit at R-11 to R-19 under a hot tile or flat roof.
Blown-In Insulation FAQs for Boca Raton
Can you blow new insulation over my old Boca attic insulation?
If the existing insulation is dry and clean, usually yes. Wet, moldy, or rodent-damaged material should come out first — common in older coastal attics.
How much does blown-in insulation cost in Boca Raton?
Blown-in fiberglass runs about $1.10 to $2.00 per square foot installed in Palm Beach County, depending on depth and attic access.
Is blown-in or spray foam better for my Boca home?
Blown-in is the value choice for an open, vented attic. Spray foam wins for sealed attics, coastal exposure, and homes with ductwork in the attic.