Dunwoody's 1970s and 1980s two-stories and split-levels sit on sloped red-clay lots with vented crawl spaces underneath and original attics above, where summer temperatures climb past 140 degrees and HVAC ductwork battles the heat all season long. If your cooling bills have crept up or a second-story bedroom never reaches temperature, your attic insulation is either missing, settled or doing almost nothing against the Georgia humidity.
Atlanta Spray Foam Insulation has been sealing and insulating homes across the Atlanta metro since 2012, and we know exactly what Dunwoody's building stock needs. The two-story foyer, the finished room over the garage, the rim joists where the house sits above the crawl space, and the original attic packed with fiberglass that has sagged into the ductwork all respond to spray foam and air sealing. We show up with a written estimate that names the R-value and thickness we're spraying, and we do the work right the first time.
Spray Foam Insulation in Dunwoody (30338)
Dunwoody's homes were built in an era when attic ventilation and vented crawl spaces were standard, which means your attic bakes all summer while moisture creeps up from the crawl space all year. The vented attic keeps your HVAC ductwork in a 130- to 150-degree sauna from May through September, and the vented crawl space under your rim joists and band joists pulls humid air straight up into the walls and into the rim cavity where condensation forms on cold days. Closed-cell spray foam stops both of those problems: it seals the rim joist and band joist tight, it seals the attic at the roof deck so the ductwork sits in conditioned space, and it blocks the humid air from the crawl space before it ever reaches the walls.
Open-cell foam works too, at a lower cost, when you want to seal the attic but you're keeping the crawl space vented and you don't need the closed-cell vapor barrier. We'll tell you which one fits your house and your budget. Our team has been installing spray foam insulation in Dunwoody and across Atlanta for over a decade, and we know how to work in tight attics, around ductwork, and in crawl spaces where headroom is measured in feet, not yards.
Our services in Dunwoody
- Attic Spray Foam Insulation in Dunwoody · Open-cell foam on the roof deck turns a 150°F Atlanta attic into conditioned…
- Closed Cell Spray Foam Insulation in Dunwoody · Two-pound closed-cell foam delivers R-6.5 per inch with its own vapor retarder…
- Open Cell Spray Foam Insulation in Dunwoody · Half-pound open-cell foam air-seals attics and walls at a friendlier price per…
- Wall & Injection Foam Insulation in Dunwoody · Injection foam fills closed walls through small drilled ports, no demolition.
- Crawl Space Spray Foam Insulation in Dunwoody · Closed-cell foam on crawl space walls and rims holds back the humid air that…
- Rim Joist & Band Joist Spray Foam in Dunwoody · Rim joists over daylight basements and crawl spaces leak conditioned air at…
- Garage Spray Foam Insulation in Dunwoody · Garage ceilings under a bonus room and walls shared with the house are…
- Metal Building & Barndominium Spray Foam in Dunwoody · Closed-cell foam is the insulation that stops a Georgia metal building from…
- Commercial & New Construction Spray Foam in Dunwoody · Warehouses; offices; churches; soundstages and production builders served on…
- Insulation Removal in Dunwoody · Old blown-in and batts vacuumed out before any new foam goes in, never buried.
- Insulation Replacement & Re-Insulation in Dunwoody · The full reset: old material removed; gaps air-sealed…
- Air Sealing in Dunwoody · Top plates; can lights; chases; knee walls and attic hatches leak more cooled…
How a Job Works in Dunwoody
We start with a free on-site assessment. You show us the problem: a room that won't cool, a damp crawl space, a rim joist that's never been sealed, or an attic that's lost its insulation value. We measure, we ask about your utility bills and your comfort, and we explain what we'd spray, how thick, what R-value it hits, and what it costs. You get a written estimate with the thickness and R-value clearly named, so you know exactly what you're paying for.
On the day of the work, we set up mechanical ventilation in your home and we keep it running the whole time we're spraying. We mask off the areas where we're working so the smell stays confined. Once the foam is sprayed and cured, we pull the ventilation fans and we walk through with you to show you what we did. The job is clean, and your home is ready to occupy again within 24 to 48 hours, depending on the thickness we sprayed.
If your insulation has to come out first because it's wet, contaminated, or settled into the ductwork, we remove it and haul it away before we spray the foam. That's an extra step, but it's the only way to do the job right.
Attic spray foam in Dunwoody typically runs from $1.50 per square foot for open-cell foam to $1.20 per board foot for closed-cell, depending on the thickness and R-value you need. A 1,500-square-foot attic sealed at the roof deck with 5.5 inches of closed-cell foam (R-38) costs between $8,000 and $12,000. Wall injection foam for closed cavities runs from $2 per square foot. Rim joist and band joist sealing starts at $650 and goes up with the linear footage. Crawl space foam, which is the most common job we do in Dunwoody because of how many homes sit on vented crawl spaces, starts at $2,500. If your insulation has to be removed first, add $950 to $2,000 depending on how much there is and what condition it's in. The real cost drivers are the area to cover, the R-value you're aiming for, whether you're spraying closed-cell or open-cell, and what has to come out before we spray. Call us at (678) 931-8735 for a free written estimate with the thickness and R-value spelled out.
✅ Written Estimates with R-Value & Thickness Specs, fully insured for work in Dunwoody and nearby areas.
