Central PA Spray Foam Central PA Spray Foam
Contact Us   (570) 412-5613

Central PA Spray Foam

Blown-In Fiberglass Insulation

Fast, affordable, and proven. Blown-in fiberglass fills ceilings, attics, and cavities with a uniform, gap-free layer of insulation — cutting energy bills without the cost of spray foam. Central PA Spray Foam installs blown-in fiberglass for homes and businesses across central Pennsylvania.

Improve Your Home’s Efficiency   (570) 412-5613

Why Blown-In Fiberglass

Blown-in fiberglass is loose fiberglass fiber installed with specialized equipment that distributes it evenly into attics, ceilings, and cavities. It settles around trusses, wiring, and obstacles that batts can’t cover cleanly — delivering complete coverage with no voids.

For maximum air-sealing in critical zones, blown-in fiberglass pairs well with spray foam insulation — foam at the rim joists and seams, fiberglass across the open attic. We install trusted Owens Corning fiberglass, and every project starts with a free, no-obligation inspection and estimate.

Get a Free Estimate

Free Estimates & Inspections
Family-Owned & Operated
Serving Central Pennsylvania — We’ll Cross State Lines Too
Licensed PA Contractor — HIC #PA197062
Brand-Name Materials: Natural Polymers & Owens Corning
Whole-Home & Whole-Building Approach

The Benefits of Blown-In Fiberglass

Homeowners, builders, and business owners across central Pennsylvania choose blown-in fiberglass because it delivers where it counts:

  • Cost-Effective — 30–50% cheaper than spray foam per square foot
  • Gap-Free Coverage — equipment fills irregular spaces completely; no thermal gaps
  • Retrofit-Friendly — blown into existing attics and walls with minimal disruption
  • Non-Combustible — Class A fire rating; will not support flame
  • Fast Installation — most attic projects complete in a single day
Central PA Spray Foam's truck and equipment trailer ready for an insulation job across central Pennsylvania
Interior of a central Pennsylvania building on a Central PA Spray Foam job site

R-Value Recommendations for Central PA

Recommended R-values vary by building component:

  • Attics & ceilings — R-38 to R-49
  • Walls — R-13 to R-15
  • Floors over unconditioned space — R-19 to R-30

These follow Department of Energy guidelines for our climate zone. Hitting them is what turns a modest upfront cost into real savings every heating season.

Contact Us (570) 412-5613

Blown-In Fiberglass Applications

Where We Install Blown-In Fiberglass

We install blown-in fiberglass wherever fast, cost-effective, gap-free coverage matters most — throughout central Pennsylvania.

Ceilings

Blown-in fiberglass is the go-to for insulating ceilings and attic floors, settling evenly across joists and around obstacles to a uniform R-value.

  • Loose fiberglass fills irregular ceiling cavities, wiring, and framing that batts can’t cover cleanly — no voids, no thermal gaps.
  • Ceiling and attic-floor coverage to R-38 or R-49 — central Pennsylvania winters favor the higher end.
  • Fast, low-disruption install over finished ceilings; ventilation baffles are maintained at the eaves in vented attics.

New Construction

For new builds, blown-in fiberglass gives builders fast, complete attic and cavity coverage at a lower cost than spray foam — ideal where speed and budget matter.

  • Blown into open attic floors and, with netting, into wall cavities for consistent fill before drywall.
  • Works in a hybrid approach: spray foam at rim joists and critical seams, blown-in fiberglass across the attic. See our new construction insulation services.
  • Non-combustible Class A rating; meets energy-code R-values for central Pennsylvania climate zones.

Residential

Blown-in fiberglass is one of the most cost-effective upgrades for existing homes, cutting heating and cooling costs with minimal disruption.

  • Ideal for topping up settled attic insulation or retrofitting walls through small access holes.
  • 30–50% cheaper than spray foam per square foot — the budget-friendly path to a more comfortable home.
  • Best in dry, protected interior spaces; we assess moisture before recommending fiberglass over closed-cell foam.

Commercial

Blown-in fiberglass scales efficiently for commercial ceilings and large attic areas where cost-per-square-foot and fire rating matter.

  • Rapid coverage of large horizontal spaces — warehouses, offices, and multi-use buildings.
  • Class A non-combustible rating supports commercial fire-code compliance.
  • Often combined with spray foam air-sealing at the building envelope for balanced cost and performance.

Let’s Talk

Ready to Get Started?

Blown-in fiberglass is a fast, affordable way to boost your home’s efficiency. Reach out for a free, no-obligation estimate on your attic or wall insulation.

(570) 412-5613   Get a Free Estimate

Blown-In Fiberglass vs. Spray Foam: When to Choose Each

Choose blown-in fiberglass when:

  • You’re insulating an attic floor or ceiling with standard access
  • Budget is a priority and the space stays dry
  • You need fast coverage of a large horizontal area

Choose spray foam when:

  • Air sealing is critical (exterior walls, rim joists, band boards)
  • The space sees moisture or the framing is irregular
  • Maximum R-value per inch is needed in a tight cavity

A hybrid approach often wins: blown-in fiberglass across the attic for value, closed-cell spray foam at the rim joists and seams for air-sealing. We assess your space and recommend the balance that fits your goals and budget.

Your Questions Answered

Blown-In Fiberglass Questions

Blown-in fiberglass typically costs 30–50% less per square foot than spray foam, which makes it the budget-friendly choice for large open areas like attics. Spray foam still delivers better air sealing in critical zones. Every project starts with a free inspection and an upfront, itemized quote for your specific space.

Blown-in fiberglass settles slightly in the first months, then stabilizes and holds its R-value. We account for settling in our coverage depth so the finished insulation meets the target R-value long-term.

Yes. Blowing fresh fiberglass over settled or thin existing attic insulation is one of the fastest, most cost-effective ways to restore performance—as long as the existing insulation is dry and mold-free. We inspect first.

Fiberglass itself isn't harmed by brief moisture, but wet insulation loses R-value until it dries and can invite mold in the cavity. That's why we recommend it for dry, protected spaces and use closed-cell spray foam where moisture is a concern.

Most attic and ceiling projects finish in a single day with minimal disruption. Larger commercial areas or wall retrofits may take longer; we provide a clear timeline during your free inspection.

Our Service Area

Serving Central Pennsylvania — Lewisburg to Harrisburg to State College

We install blown-in fiberglass insulation throughout central Pennsylvania — and we’ll cross state lines for the right project. Because we’re family-owned and operated, you get the same honest work on every job.

Lewisburg & the Susquehanna Valley

Our home base. Full insulation service for Lewisburg, Mifflinburg, Milton, Danville, Sunbury, Selinsgrove, Bloomsburg, and the surrounding communities.

Harrisburg & the Capital Region

Homes, businesses, and new builds across Harrisburg, Camp Hill, Mechanicsburg, Hershey, Carlisle, and the greater capital area.

State College & Centre County

Insulation for the Centre County region — State College, Bellefonte, Boalsburg, Philipsburg, and the surrounding valleys.

Between those three points is our core service area, and we cover plenty of ground around them — including Williamsport, Lock Haven, and Lewistown. If your town isn’t listed, call us. We’ll cross state lines for the right project, too. Learn more on our service area page, or reach out to confirm coverage and schedule a free inspection.

(570) 412-5613   Contact Us

Let’s Get Started On Affordable, Effective Insulation

Blown-in fiberglass is proven, affordable, and fast. Whether you’re upgrading an attic, insulating new construction, or covering a large commercial ceiling, our team helps you choose the right material and application for your budget.

We’re family-owned and operated, licensed in Pennsylvania (HIC #PA197062), and every project starts with a free, no-obligation inspection and estimate. Wherever your project is in central Pennsylvania, we’ll travel — even over state lines.

(570) 412-5613   Contact Us
Red Barn Media Group

© Red Barn Media Group 2026