Blown-In Insulation Installation: Inside a Boca Raton Attic

How blown-in insulation gets installed in a Boca attic

Blowing insulation into an attic looks simple — a hose, a machine, and a pile of material. The difference between a blown-in job that drops your FPL bill 15–20% and one that does nothing is everything that happens before the material goes in.

Here is the process we run on every blown-in install across Boca Raton, Delray Beach, and Boynton Beach.

1. FLIR inspection and measure

Before any material moves, we image the attic and ceiling plane with a FLIR thermal camera and measure the existing depth. This tells us what is up there, where the heat is coming through, and whether the existing layer is sound or needs to come out. We also check for moisture and rodent activity — because you cannot blow new insulation over a roof leak.

2. Air-seal the attic floor

This is the step most contractors skip, and it is the one that matters most. We caulk and foam every penetration in the attic floor: recessed can lights, plumbing stacks, wire runs, bath fans, and the attic hatch. Together these can equal a permanently open window — and in a pressurized Boca attic, that window is pulling humid outdoor air straight into your living space. Sealing them is what separates a real upgrade from a cosmetic one.

3. Protect ventilation

We install baffles at every soffit vent so the new insulation does not choke off the intake air your attic needs. Burying soffit vents is one of the most common causes of summer moisture and shingle damage we see in Boca — and it is entirely preventable.

4. Blow in the insulation

We run a vacuum-fed hose from a truck-mounted machine and blow cellulose or loose-fill fiberglass across the attic floor to the target depth — adjusted for settling, so it lands at the target R-value after it settles. We work to an even depth across the whole floor, around joists, ducts, and penetrations, with no gaps or compression points.

5. Radiant barrier on the roof deck

On most quotes we include a radiant barrier under the roof deck. It reflects up to 97% of the radiant heat coming off your sun-baked roof and drops attic temperature 15–30°F — which means the new insulation below works less hard and your AC runs less. It is the step everyone skips, and it pays back fastest.

6. FLIR proof scan

After the install, we image the attic and ceiling plane again. The before-and-after infrared report is your documented proof that the seal is real — you see the change before you pay.

How long it takes

A blown-in top-up on a typical Boca home is one day. A full removal and re-insulate is one to two days. We contain the work zone — drop cloths, sealed attic access, vacuum-fed hose — so your living space stays clean. The attic is the work zone, not your home.

What it costs

A blown-in package with air sealing, baffles, radiant barrier, and blown-in to R-38 on a 1,500–2,000 sq ft Boca ranch runs $2,800–$4,200. See blown-in insulation cost for the full pricing breakdown.

The next step

We run this process across the whole corridor — see Boca Raton, Delray Beach, Boynton Beach, or our near-me page.

Call (561) 654-7698 or book a free FLIR inspection — 5.0 stars on Google, local crew.

Frequently asked questions

How is blown-in insulation installed in a Boca Raton attic? The process is: FLIR inspection and measure, air-seal every attic-floor penetration, install soffit baffles, blow in cellulose or fiberglass to the target depth, install a radiant barrier, and a final FLIR proof scan. A typical 2,000 sq ft Boca home takes one day.

How long does blown-in insulation installation take? A blown-in top-up on a typical Boca Raton home is one day. A full removal and re-insulate is one to two days. We contain the work zone so your living space stays clean.

Do you air-seal before blowing in insulation? Yes — always. Air sealing every can light, plumbing penetration, and the attic hatch before blowing in material is the step that turns a top-up into a real fix. Skipping it is why cheap blown-in jobs fail to lower the energy bill.

Will my house be a mess during installation? No. We lay drop cloths, contain the attic access, and run a vacuum-fed hose so dust stays in the attic. The attic is the work zone — your living space stays clean.