Attic Spray Foam Insulation Alpharetta, GA 30009

Spray Foam Insulation in Alpharetta, GA (30009) · Local Professionals

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Alpharetta's two-story homes from the 1990s onward sit on sloped red-clay lots with vented attics that routinely hit 140 degrees in summer, air handlers baking in the heat, and two-story foyers and vaulted great rooms that pull conditioned air straight up and out through the roof line. Spray foam insulation and air sealing stop that leak, control the moisture that comes with Georgia's humidity, and bring the rooms that never cool back into range.

Atlanta Spray Foam Insulation has been sealing and insulating Alpharetta homes since 2012. We know the vented attics in your neighborhood, the crawl spaces under older Alpharetta properties, and the wall cavities that sit empty behind your drywall. We show up with a written estimate that names the R-value and thickness you're getting, we do the work right, and we answer the phone when you call with a question after we're done.

Spray Foam Insulation in Alpharetta (30009)

Alpharetta's subdivision homes were built with vented attics and unconditioned crawl spaces, both of which leak air and moisture year-round. The attic sits above a two-story foyer or a vaulted great room, and the ductwork for your HVAC system runs through that same hot, humid space. In summer, the attic temperature climbs to 130 to 150 degrees while your air handler works overtime to cool the house below. In winter, warm indoor air rises into the attic, hits the cold roof deck, and condenses on the insulation and ductwork. Open cell foam seals the roof deck, stops the air leak, and keeps moisture out of the insulation. Closed cell foam adds moisture protection and structural strength. Either way, the foam stops the temperature swing at the boundary where it matters.

Crawl spaces under Alpharetta homes collect moisture from the red clay and the water table below. Damp insulation loses R-value and invites mold. We seal the rim and band joists, spray the walls, and sometimes seal the floor joist cavity, depending on what you need and what your crawl space looks like. We've been doing this work in Alpharetta and the greater Atlanta area since 2012. We know the building stock, we know what works, and we know when to walk away from a job that isn't ready for foam.

Our services in Alpharetta

Attic Spray Foam Insulation in Alpharetta · Open-cell foam on the roof deck turns a 150°F Atlanta attic into conditioned…
Closed Cell Spray Foam Insulation in Alpharetta · Two-pound closed-cell foam delivers R-6.5 per inch with its own vapor retarder…
Open Cell Spray Foam Insulation in Alpharetta · Half-pound open-cell foam air-seals attics and walls at a friendlier price per…
Wall & Injection Foam Insulation in Alpharetta · Injection foam fills closed walls through small drilled ports, no demolition.
Crawl Space Spray Foam Insulation in Alpharetta · Closed-cell foam on crawl space walls and rims holds back the humid air that…
Rim Joist & Band Joist Spray Foam in Alpharetta · Rim joists over daylight basements and crawl spaces leak conditioned air at…
Garage Spray Foam Insulation in Alpharetta · Garage ceilings under a bonus room and walls shared with the house are…
Metal Building & Barndominium Spray Foam in Alpharetta · Closed-cell foam is the insulation that stops a Georgia metal building from…
Commercial & New Construction Spray Foam in Alpharetta · Warehouses; offices; churches; soundstages and production builders served on…
Insulation Removal in Alpharetta · Old blown-in and batts vacuumed out before any new foam goes in, never buried.
Insulation Replacement & Re-Insulation in Alpharetta · The full reset: old material removed; gaps air-sealed…
Air Sealing in Alpharetta · Top plates; can lights; chases; knee walls and attic hatches leak more cooled…

How a Job Works in Alpharetta

We start with a free on-site visit. We look at the attic, crawl space, walls, or garage you want sealed and insulated. We measure the area, note what R-value and thickness you need for code and comfort, and ask whether you want open cell or closed cell foam. We listen to what's not working (a room that won't cool, a smell in the attic, visible moisture, or an energy bill that's out of control). We come back with a written estimate that names the R-value, the thickness per pass, the board footage, and the price. No surprises.

On the day of the work, our team sets up ventilation fans to manage the smell during cure. We mask off any areas that shouldn't be sprayed, and we apply the foam in controlled passes to hit the thickness we promised. If insulation has to come out first (wet batts, contaminated fill, or old blown-in that's settled), we remove it and haul it away. We work around your occupied home, and we keep the re-entry window in mind: typically twenty-four to forty-eight hours before the space is safe to occupy again. We coordinate with any other trades on site and respect the layout of your home.

When we're done, we clean up the site, we walk you through the work, and we leave your property the way we found it except for the insulation that's now in place. You get a copy of the estimate and the work performed.

Attic spray foam in Alpharetta typically runs from $1.50 per square foot for open cell to $1.20 per board foot for closed cell, depending on the thickness and R-value your attic needs and the access we have to spray it. A 1,500-square-foot attic with six inches of open cell foam is usually in the $2,250 to $3,000 range. Crawl spaces start at $2,500 and go up with the square footage and the amount of moisture and contamination we have to manage before we spray. Wall injection foam for closed cavities runs from $2 per square foot. Rim and band joist sealing starts at $650. Removing old insulation runs from $950 depending on the volume and what's in it. The real cost drivers are the area to cover, the R-value and thickness you need, whether the substrate is clean and dry (moisture has to be fixed first or we don't spray), and what has to come out before the foam goes in. Call us at (678) 931-8735 for a free written estimate with all the numbers spelled out.

✅ Written Estimates with R-Value & Thickness Specs, fully insured for work in Alpharetta and nearby areas.

Why does the upstairs bedroom in my Alpharetta home never reach the temperature I set the thermostat to?

In a two-story Alpharetta home with a vaulted great room or a second-floor bedroom over the garage, the conditioned air rises and leaks out through the attic. The attic is 140 degrees in summer and acts like a giant heat source pulling air upward. Spray foam on the roof deck stops that leak. The air stays in the living space instead of escaping through the attic. You'll feel the difference in a few days. Open cell foam is the standard choice for this job because it breathes and lets the roof deck stay healthy.

I see moisture or condensation on the insulation in my Alpharetta attic or crawl space. What do I do before I call a spray foam contractor?

Stop. Moisture on insulation means the insulation is not working and the substrate underneath may be wet. We do not spray foam over wet insulation or a wet substrate. The moisture has to be identified and stopped first. If there's a roof leak, it has to be fixed. If there's standing water in a crawl space, it has to be pumped and the source stopped. If the insulation is damp from condensation, we have to understand why before we spray. Call us at (678) 931-8735 and describe what you're seeing. We'll tell you what has to happen first. We fix the moisture first or we walk away.

How much does it cost to spray foam an attic or a crawl space in Alpharetta?

Attic foam starts around $1.50 per square foot for open cell. A 1,500-square-foot attic is usually $2,250 to $3,000. Crawl space foam starts at $2,500. The real variables are the square footage, the R-value you need, whether the space is clean and dry, and what old insulation has to come out first. We give you a written estimate with the R-value, thickness, and board footage before we start. Call (678) 931-8735 for a free estimate.

What R-value does Alpharetta code require for attic insulation, and who checks the work?

The energy code and the R-value requirement for your Alpharetta address are set by the City of Alpharetta and the building official. The requirement depends on whether your home was built before or after a code change, and it varies slightly by the type of insulation and the climate zone. The City of Alpharetta website has permit and code information. We help you understand what applies at your address, and we build the insulation to the thickness and R-value your local code requires. The building department may inspect the work if a permit is pulled. We coordinate with the inspector and make sure the foam meets code.

Can we live in the house while you spray foam the attic or crawl space?

Yes. We set up mechanical ventilation during the spray and cure process to manage the smell and any off-gassing. The typical re-entry window is twenty-four to forty-eight hours. The house has to be ventilated (doors and windows open, fans running) during that time. If you have an HOA, check your rules about work windows and exterior equipment. Most Alpharetta neighborhoods don't restrict insulation work, but some do. We coordinate with your HOA if needed, and we schedule the work for a time that works for your family.

Are you insured for spray foam insulation work in Alpharetta?

Yes. We are fully insured with general liability and workers' compensation. Any contractor working in your home should carry both. If you want to verify our coverage, ask for proof of insurance before we start. You should ask any contractor the same question.

When is the best time of year to have spray foam insulation done in Alpharetta?

Spring and fall are ideal. In summer, the attic is 140 degrees and the cure time can be unpredictable. In winter, a cold snap can slow cure and make the job harder. Spring (March through May) and fall (September through November) give us stable temperatures and faster cure. But we work year-round. If your cooling bill is out of control in July or you find moisture in the attic in January, call us. We'll schedule the work and manage the conditions.