Blown-In Insulation Cost & Savings in Pinellas County
Get a clear, honest breakdown of what blown-in insulation costs, what drives the price, and how much Pinellas County homeowners typically save on energy bills.
Quick Answer
Most homeowners in St. Petersburg, Clearwater, and the rest of Pinellas County pay between $1.50 and $3.50 per square foot to have blown-in insulation installed in an attic. For a typical 1,500 sq ft attic, that works out to roughly $2,250 – $5,250 for a complete job, including material and labor. Smaller top-up jobs can start closer to $900.
What Goes Into the Price
How much does blown-in insulation cost?
The final quote depends on four main factors: attic size, current insulation depth, the material you choose, and whether old insulation needs to be removed first.
Per square foot pricing
Cellulose and fiberglass blown-in insulation typically run $1.50–$3.50 per square foot installed. The lower end covers simple top-ups; the higher end covers full removal, air sealing, and new installation.
Attic size matters most
A 1,000 sq ft attic usually ranges from $1,500–$3,500. A 2,500 sq ft attic can range from $3,750–$8,750. We measure attic floor area, not living space, to keep the quote accurate.
Material choice
Cellulose (recycled, treated for fire and pests) is the most common choice in Florida attics and is slightly less expensive than fiberglass. Fiberglass has higher R-value per inch and is a good fit for tight spaces.
Old insulation removal
If your attic has damaged, compressed, or contaminated insulation, removal and disposal add $1.00–$2.00 per square foot. This is common after roof leaks, rodent damage, or homes built before 1990.
2025 Price Ranges
Typical blown-in insulation costs in St. Petersburg
Add blown-in insulation over existing material to reach R-38 to R-49. Best for attics that already have some insulation but are below modern code.
Install blown-in insulation from scratch in an empty or lightly insulated attic. Includes prep, air sealing, and cleanup.
Vacuum out old insulation, sanitize, seal gaps, and install new blown-in material. Common for older homes and pest/moisture issues.
These ranges reflect Pinellas County labor and material costs. Every home is different, so we provide a free, itemized quote before any work begins.
Energy Savings & ROI
How much can you save?
In Florida, cooling is the largest energy expense. A well-insulated attic reduces the heat load on your AC, which is where most homeowners see the fastest return.
Typical savings after upgrading an under-insulated attic to R-38 or higher.
Most Pinellas homeowners recoup the installation cost through lower energy bills in under seven years.
Varies by home size, AC age, and current insulation condition. Older homes tend to see the biggest drop.
Why ROI is strong in Florida
Florida attics can reach 130–150°F in summer. Without enough insulation, that heat radiates into your living space, forcing your AC to run longer. Blown-in insulation creates a thermal barrier that keeps attic heat out, so your AC cycles less often and your home stays cooler with less energy.
FAQ
Common cost questions
How much does blown-in insulation cost per square foot?
Installed blown-in insulation in Pinellas County typically costs $1.50–$3.50 per square foot. The exact price depends on whether you need a top-up, a full install, or removal of old insulation first.
How much does it cost to have insulation blown in?
For a typical St. Petersburg home, the total installed cost ranges from $2,250 to $5,500 for an attic. Smaller jobs or partial top-ups can be under $2,000; larger homes or removal-and-replacement jobs can exceed $6,000.
Is blown-in insulation worth it in Florida?
Yes. Because cooling dominates Florida energy bills, attic insulation upgrades usually pay for themselves in 3–7 years and make the home noticeably more comfortable during the summer.
Do you offer financing?
Yes. We offer flexible financing options for qualifying homeowners so you can spread the cost over manageable monthly payments.
Get your free, itemized quote
Every attic is different. We measure, inspect, and give you a clear, written estimate - no pressure, no hidden fees.