
Blown-In Insulation in
Lawrenceville, GA & Gwinnett County
The fastest, most cost-effective way to bring an under-insulated Gwinnett County attic up to where it needs to be — without tearing anything apart. Blown-in insulation goes in fast, fills every gap fiberglass batts miss, and can take most attics from R-11 to R-49 in a single day. We install both fiberglass and cellulose loose-fill, and we’ll tell you honestly which one is right for your home.
About Eco Spray Foam LLC:
Founded in 2020 by Rigoberto Vega and based at 737 Nottingham Dr., Lawrenceville, GA 30046 — Eco Spray Foam LLC is Gwinnett County’s family-owned blown-in insulation contractor. We install both blown-in fiberglass (R-2.2 to R-2.7/inch) and blown-in cellulose (R-3.2 to R-3.8/inch) for homeowners, builders, and contractors throughout Gwinnett County and up to 100 miles from Lawrenceville. Rated 5.0 stars on Google. Call (678) 622-5682 or email ecosprayfoam1@gmail.com for a free estimate, 7 days a week.
R-3.8
Max cellulose R-value per inch
1 Day
Most jobs complete same day
$250
Georgia Power rebate available for qualifying upgrades
89%
Of US homes are under-insulated (NAIMA)
WHAT IS OPEN CELL SPRAY FOAM — AND HOW DOES IT ACTUALLY WORK?
Blown-in insulation — also called loose-fill insulation — is exactly what it sounds like. A professional uses a specialized blowing machine to pneumatically distribute loose fiberglass or cellulose material through a large hose, spreading it evenly across your attic floor or into existing wall cavities. Unlike fiberglass batts, blown-in insulation conforms to every shape, fills around every wire and pipe, and leaves zero voids.
For Gwinnett County homeowners, blown-in is particularly valuable because the vast majority of homes were built between 1970 and 2010 with fiberglass batt insulation that’s now well below current standards. These homes have attics at R-11 to R-19 — when Georgia’s DOE Climate Zone 3A calls for R-38 to R-49. Blown-in is the most practical, least disruptive, and most cost-effective way to correct this.
📊 The Under-Insulation Problem Is Bigger Than You Think
According to NAIMA, 89% of homes in the United States are under-insulated. In Gwinnett County specifically, where most housing stock was built before current energy codes took effect, the odds are even higher that your attic is falling short of recommended R-values.
89%
Of US homes are under-insulated (NAIMA/Insulation Institute)
R-38
DOE minimum for Gwinnett County attics (Climate Zone 3A)
45%
Max energy savings possible with proper insulation and air sealing
1 Day
Typical installation time for most attic jobs
OPEN CELL VS. CLOSED CELL SPRAY FOAM
🌿 Blown-In Cellulose — R-3.2 to R-3.8 per inch | ~80–85% recycled content
Higher R-value per inch than fiberglass — needs less depth to hit R-38 or R-49
Denser material creates better natural air barrier between fibers
Superior sound dampening due to higher density
Made from up to 85% recycled newsprint — most eco-friendly option
Treated with borates — fire retardant, mold resistant, pest deterrent
CONSIDERATION: Settles 15–20% over time — installer must account for this upfront
CONSIDERATION: Can absorb moisture if a roof leak occurs
Badge:
Best Performance Per Inch
🔷 Blown-In Fiberglass — R-2.2 to R-2.7 per inch | ~20–30% recycled content
Excellent long-term stability — settles less than 5% over its lifetime
Superior inherent moisture resistance compared to cellulose
Naturally non-combustible — no chemical fire retardant needed
Lightweight — doesn’t add significant load to ceiling structure
Widely available and cost-competitive in the Georgia market
CONSIDERATION: Lower R-value per inch — requires greater depth to reach same total R
CONSIDERATION: Less dense, slightly more air-permeable than cellulose
Badge:
Most Stable Long-Term
🏠 What We Recommend for Most Gwinnett County Attics
For most Lawrenceville, Duluth, and Buford homeowners upgrading an existing attic, cellulose is the smart call. The higher R-value per inch means less material to reach R-38 or R-49, and its denser structure provides better air sealing. For attics with known moisture issues, blown-in fiberglass may be preferred. We’ll look at your specific attic and give you an honest recommendation.
HOW MUCH BLOWN-IN INSULATION DOES YOUR GWINNETT COUNTY ATTIC NEED?
Climate Zone 3A (Gwinnett County, GA). How many inches of blown-in to add on top of existing insulation to reach DOE and ENERGY STAR targets:
R-0 uninsulated
R-0 uninsulated
R-11 (common pre-1990)
R-11 (common pre-1990)
R-19 (common 1990s–2000s)
R-19 (common 1990s–2000s)
Need 14–17" fiberglass OR 10–12" cellulose to reach R-38
Need 18–22" fiberglass OR 13–15" cellulose to reach R-49
Need 10–13" fiberglass OR 7–9" cellulose to reach R-38
Need 14–17" fiberglass OR 10–12" cellulose to reach R-49
Need 7–9" fiberglass OR 5–7" cellulose to reach R-38
Need 11–14" fiberglass OR 8–10" cellulose to reach R-49
Note: Cellulose installers must add 15–20% extra at install time to account for settling. These figures represent final settled depth.
Critical
Seal air penetrations (recessed lights, plumbing, electrical, attic hatch) before adding insulation. Air leaks account for 25–40% of heating/cooling costs per DOE.
BLOWN-IN INSULATION COMPLETE COMPARISON — CELLULOSE VS. FIBERGLASS
-
R-Value Per Inch
Settling Over Time
Air Sealing Performance
Moisture Resistance
Eco-Friendly Content
Fire Resistance
Sound Dampening
Cost Per Sq Ft (GA)
Retrofit Applications
Pest Resistance
CELLULOSE
Cellulose R-3.2–3.8 WINS
Cellulose 15–20%
Cellulose Better—denser fill WINS
Cellulose Moderate
Cellulose 80–85% recycled WINS
Cellulose Borate-treated
Cellulose Superior—denser fiber WINS
Cellulose $0.90–1.70 installed
Cellulose Preferred—fills gaps efficiently WINS
Cellulose Borate treatment repels insects WINS
FIBERGLASS
Fiberglass R-2.2–2.7
Fiberglass Under 5% WINS
Fiberglass Good
Fiberglass Excellent WINS
Fiberglass 20–30%
Fiberglass Naturally non-combustible WINS
Fiberglass Good
Fiberglass $0.90–1.40 installed
Fiberglass Works well
Fiberglass None
REBATES & TAX CREDITS FOR BLOWN-IN INSULATION IN GWINNETT COUNTY
⚡ Georgia Power Rebate — Up to $250
Georgia Power customers can receive up to $250 for qualifying attic insulation upgrades through the Home Energy Improvement Program (HEIP). Contact Georgia Power at georgiapower.com for current eligibility requirements.
