CardinalInsulation

Boca Raton · Palm Beach County

Cool the house.Not the attic.

Blown-in and spray foam for Palm Beach County homes. We air-seal the attic first, then install to R-38 — past Florida's R-30 code minimum.

Free attic assessment. Installed by our crew.

Cream stucco South Florida house with a barrel tile roof and palms
Tile-roof houses in this county lose the cooling fight in a thin, leaky attic.
R-38
Blown-in standard
R-30
Florida code floor
1 day
Most attic top-ups
First
Air seal, then fill

Services

Three jobs. We won't sell you the wrong one.

Attic floor covered in a thick, even layer of blown fiberglass

Blown-in attic insulation

The usual fix. Fiberglass or cellulose blown across the attic floor to an even R-38. Thin batts and settled fill get topped up. Wet or ruined insulation comes out first — that's a different price.

Most single-family attics are a one-day job. For Delray Beach houses, see blown-in insulation in Delray Beach.

Roof deck between rafters coated in closed-cell spray foam

Spray foam on the roof deck

For bonus rooms, hot roofs, and attics that should sit inside the conditioned house. Open-cell when you need depth. Closed-cell when you need more R per inch. Foam is not a substitute we quietly swap in for a blown-in top-up.

Gloved hand sealing a pipe penetration in a plywood attic floor

Air sealing, before the first bag

Cans, top plates, chases, bath fans, and the hatch. Insulation over a leaky ceiling just hides the hole. Every blown-in job starts here.

Why the attic

The air conditioner is paying rent on air it already cooled.

On a clear afternoon a vented South Florida attic often runs past 130°. Three or four inches of settled fill, plus leaks at the top plate, means the unit never catches up. The cheap upgrade is usually above the ceiling — not a bigger condenser.

See the inches to R-38
What's often up there. About R-9 if it's settled fiberglass.

4 in there now · 0 in to add

Same attic, topped to R-38 with blown fiberglass.

4 in there now · 11 in to add

How a job goes

  1. 01

    Look

    We measure what's there, find the wet spots, and check the hatch, the cans, and the chases.

  2. 02

    Seal

    Penetrations get sealed before any insulation goes down. Fill over a leak just hides it.

  3. 03

    Install

    Blown-in across the attic floor, or foam on the roof deck, to the depth we agreed on.

  4. 04

    Show you

    Depth checked before we leave. You know the R-value you paid for, not a guess from the truck.

Service area

Out of Boca. Across the county.

Shop at 4263 NW 1st Ave, Boca Raton, FL 33431. The deepest city page right now is attic insulation in Delray Beach— neighborhoods, ZIP codes, and the R-38 standard. If your city isn't listed and you're still in Palm Beach or north Broward, call — we'll say yes or no on the phone.

Boca and the coast

North county

  • West Palm Beach
  • Palm Beach Gardens
  • Jupiter
  • Tequesta
  • Wellington

South, toward Broward

  • Deerfield Beach
  • Pompano Beach
  • Parkland
  • Coconut Creek
Map to the shop

Straight answers

What R-value do you install?

Florida's code minimum for these attics is R-30. Our blown-in standard is R-38. If you want to go higher, the planner on this site runs the inches before you call.

Fiberglass or cellulose?

Both work on an attic floor. Fiberglass is light and the usual choice for a top-up. Cellulose packs denser. The right one depends on what's already up there and how the attic is vented.

How long does a blown-in attic take?

A typical single-family attic is one day, including the air sealing. Spray foam on a roof deck takes longer because of masking and cure time.

Will the house smell?

Blown-in fiberglass and cellulose don't have a chemical cure smell. Spray foam does while it cures. We ventilate, and we don't treat a foam job like a blown-in job. If anyone in the house is sensitive, say so before we schedule.

Do you remove the old insulation?

If it's dry and just thin, we usually seal and top it up. If it's wet, moldy, or full of rodent mess, it comes out first. Removal is its own price. It is not buried inside a top-up number.

Is the planner a quote?

No. It's a planning range from attic size, depth, and material. It does not include removal, repairs, or a hard attic. The bid is the number we give after we see it — or after you text clear photos of the hatch and the existing fill.

Tell us the attic. We'll tell you if it's a top-up.

Call, or send the planner. Photos of the hatch help.