ProSeal’s Northeast Florida Insulation FAQs

In N.E. Florida’s hot, humid climate, the best-performing solutions are spray foam insulation, blown-in fiberglass, fiberglass batt insulation, and air sealing.

Each offers different benefits:

• Spray Foam → Highest energy efficiency + moisture control
• Blown-In Fiberglass → Cost-effective upgrades for attics & retrofits
• Fiberglass Batts → New construction & commercial projects
• Mineral Wool → Fire resistance & soundproofing
• Air Sealing → Required by energy codes and essential for comfort

Learn more on our main service pages and our local guides for areas like St Augustine, Palm Coast, Yulee, Ponte Vedra, and others.

Costs vary by service type and square footage:

• Spray foam installation typically runs higher due to performance and longevity.
• Blown-in fiberglass and batt insulation are more affordable.
• Air sealing pricing depends on how many leakage points we treat.
• Mineral wool costs more but is ideal for sound control and fire resistance.

Every project gets a free on-site estimate, and each service also has its own Google Ads / Facebook landing page with pricing guidance.

Absolutely. Attics in N.E. Florida regularly hit 140–160°F, and insulation prevents that heat from radiating into your living space.

Spray foam, blown-in fiberglass, and batt insulation each help lower cooling bills—a major benefit in Jacksonville, St. Augustine, and Palm Coast.

Common signs include:

• Hot second floor
• AC running constantly
• High energy bills
• Rooms that never cool evenly
• Drafts around outlets or baseboards
• Old insulation that is settling or deteriorating

Our air sealing service and free assessments can pinpoint problems.

Yes—especially in humid climates. Spray foam provides:

• Air sealing
• Moisture resistance
• Reduced allergens
• Higher efficiency
• A longer lifespan than any other insulation method
• Attic temperature control (often 20–40°F cooler)

Our Spray Foam Insulation in N.E. Florida landing page covers homes and commercial buildings in Jacksonville, St. Augustine, Palm Coast, Yulee, Callahan, Hilliard, and more.

Yes. In fact, unvented attics with spray foam are extremely common across N.E. Florida and help protect HVAC systems installed in attic spaces.

Yes. We install spray foam for:

• Metal warehouses
• Agriculture buildings
• Retail units
• Office build-outs
• Restaurants
• Churches
• Storage facilities
• Marine & coastal structures

See our commercial insulation service pages or request a customized estimate.

Yes. It’s one of the best value upgrades for older homes in NE Florida. Benefits include:

• Fast install
• Great coverage
• Higher R-value per dollar
• Good for tight attic spaces

See our Blown-In Fiberglass Insulation page for details and local service area maps.

To meet modern energy codes, Florida attics typically need R-30 to R-38—which is usually 10–14 inches of blown-in fiberglass.

Yes—especially in new construction, remodels, and commercial walls/ceilings.

They are ideal for:

• Wall cavities
• Floor systems
• Commercial metal stud walls
• Garage conversions

See our Fiberglass Batt Insulation in N.E. Florida page for residential and commercial uses.

Common applications:

• Bedrooms
• Interior soundproofing
• Walls around bathrooms
• Office and retail buildouts
• Ceilings between floors
• Garage & ADU walls

Mineral wool (rock wool) is a fire-resistant, sound-dampening insulation used in:

• Multi-family units
• Townhomes
• Commercial buildings
• Home theaters
• Interior walls
• Attics or floors where moisture control is needed

Our Mineral Wool Solutions in N.E. Florida page details all applications.

Yes—it's one of the top sound-control materials and is used frequently in:

• Recording studios
• Offices
• Restaurants
• Bedrooms
• Media rooms
• Multi-unit walls

Air sealing closes gaps around:

• Recessed lights
• Attic penetrations
• Wall plates
• Plumbing holes
• Electrical boxes
• Baseboards

Air sealing is recommended by ENERGY STAR and is a major part of Florida’s energy code.

Our Air Sealing in N.E. Florida page explains how this boosts comfort and reduces energy waste

Yes and no.

• Closed-cell spray foam provides both insulation + air sealing.
• Fiberglass and mineral wool DO NOT air seal by themselves, so sealing is required before insulating.

We provide both services on our landing pages.

Common systems we install in St. Johns, Duval, and Clay Counties:

• Spray foam for metal buildings & warehouses
• Batt insulation for office buildouts
• Mineral wool for fire-rated walls
• Blown fiberglass for multifamily attics
• Air sealing for energy code compliance

Our commercial landing pages cover all local service areas.

Yes—our crews regularly insulate:

• Retail units
• Restaurants
• Veterinary clinics
• Auto shops
• Medical offices
• Corporate buildouts

Yes—we cover all of Northeast Florida:

• St. Augustine
• Palm Coast
• Ponte Vedra
• Yulee
• Callahan
• Hilliard
• Fernandina Beach
• Middleburg
• Green Cove Springs
• Keystone Heights
• Gainesville
• Orange Park
• Baldwin
• Starke
• And every surrounding community

Each city has its own SEO-optimized service page.

Yes.

• Coastal zones (St. Augustine, Palm Coast, Ponte Vedra, Fernandina) benefit most from spray foam due to moisture and salt-air exposure.
• Inland areas often use blown-in fiberglass, batts, or mineral wool due to lower humidity levels.
• Older homes in places like Starke, Keystone Heights, and Gainesville need air-sealing and attic upgrades.

Most homeowners see 20–40% savings, especially when combining:

• Air sealing
• Proper R-value
• Duct insulation
• Spray foam or blown-in fiberglass upgrades

See our landing pages for ROI calculators and estimate forms.

• Spray foam → 30+ years
• Fiberglass batts → 20 years
• Blown-in fiberglass → 15–20 years
• Mineral wool → 30+ years
• Air sealing → Permanent

Most projects finish in one day, including:

• Attic blown-in fiberglass
• Batt insulation
• Air sealing

Larger spray foam or commercial jobs may take 2–4 days.

We’ll advise based on project size; usually homeowners are out for 4–12 hours.

Yes.

• Spray foam + air sealing dramatically reduce humidity infiltration.
• Fiberglass + air sealing also improves control.
• Mineral wool is moisture-resistant and won't absorb water.

Yes—proper air sealing and correct R-value help prevent condensation, which reduces mold risk.

Our service area pages talk about Florida-specific moisture issues in detail.

Yes—every town or city we serve has a dedicated landing page with call-to-action forms for fast scheduling.

Yes— for example our commercial clients often schedule early morning or weekend installations.

You can:

• Call
• Use any service page or city landing page form
• Message us on Facebook / Instagram
• Request a quote from Google Maps / Google My Business profile