Attic Insulation in Marietta - Same-Day Service, Done Right the First Time

Insulation in Marietta, GA

Crawl space encapsulation and vapor barrier work in Marietta is the single most important retrofit for the 1950s-1970s ranch homes concentrated along Franklin Road and South Marietta, where original fiberglass batts and settled rock wool barely register as functional insulation. Marietta’s Climate Zone 3A humidity means moisture in vented crawl spaces doesn’t just sit there, it feeds mold year-round. Call (866) 751-4428 and we’ll tell you straight what your house needs and what it’ll cost.

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Why Marietta Homes Are Different

Two housing booms built Marietta, and both of them left predictable insulation problems. The Lockheed-Georgia defense surge in the 1950s and 1960s threw up thousands of minimally-insulated ranch homes in south and east Marietta for plant workers. Then the East Cobb subdivision explosion of the 1980s and 1990s added sprawling two-story homes with cathedral ceilings and bonus rooms over garages, the kind of spaces builders of that era routinely under-insulated.

Here’s what that means today. Along corridors like Franklin Road and South Marietta, we regularly pull back attic insulation to find original rock wool or early batts compressed to under two inches of actual depth. Homeowners are genuinely startled to learn their attic has essentially zero functional R-value despite insulation being visibly present. In East Cobb, the bonus rooms above garages and multi-plane rooflines create hot and cold spots that are harder to solve because the problem is often in the framing itself.

Marietta sits in IECC Climate Zone 3A. Summer dewpoints routinely reach the upper 60s to 70s°F. Periodic polar vortex intrusions drop temperatures into the low teens. That means your insulation system has to handle aggressive cooling loads and real heating demand simultaneously. And the sustained humidity makes vapor management in vented crawl spaces and attics absolutely critical. Improperly installed or degraded insulation reliably produces the mold conditions this climate is built to create.

Our Main Marietta Services

Most Marietta homeowners call us about two things: attic insulation that’s been underperforming for years and crawl spaces that are slowly turning into mold incubators. Here’s what each one involves here.

Attic Insulation in Marietta

Marietta’s ranch-era homes almost always have attic insulation that’s well past its useful life. The job starts with pulling back what’s up there and measuring the real depth, not what the original builder claimed. In East Cobb’s two-story homes, we’re usually adding insulation to cathedral ceilings and over bonus rooms, which means working around complex rooflines. The goal is always the same: hit a true R-38 to R-49 attic in a climate that demands it from May through September. For the full breakdown of attic work in this city, see Attic Insulation in Marietta.

Crawl Space Encapsulation & Vapor Barrier in Marietta

Crawl space encapsulation in Marietta succeeds or fails on one thing: humidity control. The city’s Climate Zone 3A summers with dewpoints in the upper 60s to 70s°F push ground moisture through the air every single month except December and January, which means an unsealed crawl space is actively moving water vapor into your floors and walls. Most of the crawl spaces we open in south and east Marietta ranch homes from the 1950s and 1960s have never been sealed at all. The good news is a full Crawl Space Encapsulation & Vapor Barrier install fixes the problem permanently when it’s done right.

Crawl Space Vapor Barrier

Signs you need it

You smell mildew when the AC runs, your floors feel damp or look warped, or you see condensation on ductwork in the crawl space. In Marietta, the biggest tell is often a persistent musty smell in hallways and closets directly above the crawl space.

What it costs in Marietta

A crawl space vapor barrier in Marietta typically runs $3 to $5 per square foot, so a 1,000-square-foot crawl space lands between $3,000 and $5,000.

How we do it

We roll out a reinforced 12-mil polyethylene liner, seal every seam with butyl tape, and run the barrier up the foundation walls. We also mechanically fasten it so it doesn’t shift when you or a technician has to get back under the house.

Crawl Space Encapsulation

Signs you need it

Your floors are cold in winter despite the heat running, or you’ve found mold on floor joists or subflooring. Bonus rooms over crawl spaces in East Cobb two-stories are especially prone because they sit above fully open dirt.

What it costs in Marietta

Full encapsulation in Marietta ranges from $5 to $9 per square foot, which puts most jobs between $5,000 and $9,000 depending on the crawl space’s condition and access.

How we do it

We seal the entire crawl space: vapor barrier on the floor and walls, closed-cell spray foam on the rim joists, a sealed crawl space door, and either a dehumidifier or a conditioned-air supply matched to the space’s size. Every seam gets sealed before we call it done.

Crawl Space Cleanout

Signs you need it

You can’t see the dirt floor because of old building debris, rodent droppings, or standing water. We find this constantly in the Lockheed-era ranch belt, where crawl spaces have been collecting junk since the 1960s.

What it costs in Marietta

Debris removal and crawl space cleanout in Marietta typically costs $1 to $4 per square foot, with a minimum trip fee in the $250 to $400 range for smaller jobs.

How we do it

We remove everything down to the bare dirt, bag and dispose of all debris, and leave you a clean surface ready for a vapor barrier or full encapsulation. We also flag any animal entry points we spot during the cleanout.

What Crawl Space Encapsulation & Vapor Barrier Costs in Marietta

How long does crawl space encapsulation take in Marietta?

Most Marietta homes take one to two days from start to finish. Larger East Cobb two-stories with difficult access or significant cleanout work can run three days. We’ll give you a firm timeline before we start.

Does a vapor barrier help with mold in Marietta’s humidity?

Yes. A properly installed 12-mil barrier stops the moisture that mold needs. In Marietta’s Climate Zone 3A conditions, where dewpoints stay in the upper 60s all summer, this is the single most effective mold-prevention step you can take under the house. Call (866) 751-4428 for an exact quote, free.

Spray Foam Insulation in Marietta

Spray foam insulation solves the two problems Marietta houses are built to have: air leakage through aging ranch-home framing and under-insulated bonus rooms in East Cobb’s 1980s-era two-stories. The humidity here also makes closed-cell foam a smart choice anywhere moisture intrusion is a concern, because it doubles as an air barrier and a vapor retarder. We install open-cell and closed-cell systems from Spray Foam Insulation manufacturers like Icynene and Demilec, and we’ll tell you which one actually fits your job instead of upselling you.

Open-Cell Spray Foam

Signs you need it

Your upstairs rooms run hot in summer while the downstairs stays cool, or you can hear every footstep from the floor above. Open-cell foam seals air gaps even in Marietta’s tightest 1960s ranch attics.

What it costs in Marietta

Open-cell spray foam in Marietta typically runs $1.75 to $3.25 per board foot, so a 500-board-foot attic roof deck lands between $875 and $1,625.

How we do it

We prep the area by clearing it, cover anything that shouldn’t get overspray, and apply the foam to the underside of the roof deck at a depth matched to your R-value target. It expands in seconds and seals every crack.

Closed-Cell Spray Foam

Signs you need it

You have a vented crawl space that’s damp year-round, or you want to air-seal and insulate rim joists that are sweating in summer. Closed-cell foam is dense and rigid, and in Marietta’s humidity it acts as a true vapor barrier.

What it costs in Marietta

Closed-cell spray foam in Marietta typically costs $3.00 to $5.50 per board foot, which puts a 300-board-foot rim joist job between $900 and $1,650.

How we do it

We apply the foam in passes to build the required depth, usually two to three inches on rim joists and three to four inches on roof decks. Because it’s moisture-impermeable, it’s often the best choice anywhere ground humidity is a factor.

What Spray Foam Insulation Costs in Marietta

Which spray foam is better for Marietta’s climate?

Closed-cell handles humidity better and adds structural strength. Open-cell is more cost-effective for attic ceilings where moisture isn’t a major concern. In a vented crawl space, closed-cell is almost always the right call in Marietta.

Can you spray foam an attic in Marietta during summer?

Yes, though temperature and humidity affect cure time. We schedule early-morning installs during the hottest months so the foam cures properly. Call (866) 751-4428 and we’ll work around the weather, not against it.

Blown-In Insulation in Marietta

Blown-in insulation is the most cost-effective way to bring a Marietta attic up to the R-38 to R-49 this climate demands. Many of the ranch homes along Franklin Road and South Marietta still have their original settled batts or rock wool, which measure far below what the label says. We use Blown-In Insulation from GreenFiber and Owens Corning, and we blow to a verified depth, not a guessed one.

Blown-In Cellulose

Signs you need it

Your attic has patchy coverage, or you can see the ceiling joists in places. In Marietta’s older ranches, settled insulation is the rule, not the exception, and cellulose does a great job filling old, irregular cavities.

What it costs in Marietta

Blown-in cellulose in Marietta runs $1.00 to $2.00 per square foot, so a 1,200-square-foot attic typically costs $1,200 to $2,400.

How we do it

We run a hose into the attic and blow the cellulose to an even, measured depth. We also check that soffit vents stay clear so attic ventilation keeps working.

Dense-Pack Wall Insulation

Signs you need it

Your ranch-era exterior walls feel cold to the touch in winter and hot in summer, and you’ve already got insulation in the attic but not in the walls. Dense-pack cellulose is our go-to for retrofitting Marietta’s uninsulated wall cavities.

What it costs in Marietta

Dense-pack wall insulation in Marietta typically runs $2.00 to $4.00 per square foot, and a full exterior wall retrofit usually lands between $2,000 and $6,000.

How we do it

We drill small access holes from the interior or exterior, pack the cavity completely with cellulose at high pressure, then patch and finish the holes so they disappear.

What Blown-In Insulation Costs in Marietta

How much R-value should a Marietta attic have?

In Climate Zone 3A, aim for R-38 to R-49 in the attic. Most older Marietta homes we measure are sitting at R-10 to R-19. Blown-in cellulose is the cheapest way to close that gap.

Can you add blown-in insulation over old insulation in Marietta?

Usually, yes. We top up over sound, dry existing insulation all the time. If the old material is wet, moldy, or full of rodent droppings, we recommend removal first. Call (866) 751-4428 for a straight answer and a free estimate.

Radiant Barrier Installation in Marietta

Radiant barrier installation targets a very specific Marietta problem: attics that hit 130°F or more from May through September, radiating heat downward into your living space. In a Climate Zone 3A home where cooling is the single biggest energy line item, a properly installed radiant barrier reflects a meaningful share of that heat back out through the roof. We install Radiant Barrier Installation foil on attic rafters and roof decks, and we always pair it with good ventilation so it actually works.

Attic Radiant Barrier

Signs you need it

Your upstairs rooms run 8 to 10 degrees hotter than the rest of the house in summer, or your AC runs nonstop from noon to midnight. Marietta’s low summer sun angle makes radiant heat gain a bigger deal than most homeowners think.

What it costs in Marietta

Attic radiant barrier in Marietta typically runs $0.75 to $2.00 per square foot, so a 1,500-square-foot attic lands between $1,125 and $3,000.

How we do it

We staple reinforced foil to the underside of the rafters, leaving a ¾-inch air gap on one side. That gap is the part that matters; without it, the foil just conducts heat instead of reflecting it.

Radiant Barrier Roof Deck

Signs you need it

Your attic gets so hot you can’t stand in it for more than five minutes, and your roof faces mostly west or south. In East Cobb two-stories with complex rooflines, radiant barrier on the roof deck is often the only practical retrofit.

What it costs in Marietta

Radiant barrier on the roof deck in Marietta runs $1.50 to $3.50 per square foot, putting most jobs between $2,250 and $5,250 for a typical two-story home.

How we do it

We install the barrier directly against the underside of the roof deck before insulation goes in, which is the right order. This method works especially well if you’re also planning spray foam because you don’t need an extra air gap.

What Radiant Barrier Installation Costs in Marietta

Does a radiant barrier work with all Marietta roof types?

Radiant barrier works best with asphalt shingle roofs, which cover most of Marietta. It’s less effective on tile or metal unless there’s an air gap. We’ll check your roof type before recommending anything.

Is a radiant barrier worth it in Marietta without other insulation changes?

It helps, but the biggest win comes from pairing it with adequate attic insulation. In Marietta’s heat, a radiant barrier alone won’t fix an attic with R-10 fiberglass. Call (866) 751-4428 and we’ll tell you what combination makes sense.

Insulation Removal & Replacement in Marietta

Insulation removal and replacement in Marietta is most often needed in the Lockheed-era ranch belt, where original 1950s and 1960s insulation has been soaking up humidity and rodent activity for fifty-plus years. The other common trigger is a roof leak that soaked the insulation and started mold. We remove the old material completely and blow in fresh Insulation Removal & Replacement insulation, from GreenFiber or Owens Corning, at a verified depth.

Attic Insulation Removal

Signs you need it

Your attic insulation is visibly compressed, damp, or covered in rodent droppings. In south and east Marietta ranches, we often find batts that have compressed to under two inches, which means almost no real insulation value.

What it costs in Marietta

Attic insulation removal in Marietta typically costs $1 to $2.50 per square foot, so a 1,000-square-foot attic lands between $1,000 and $2,500.

How we do it

We use a commercial HEPA-filtered vacuum system to pull out the old material without filling your house with dust. Then we bag it, haul it off, and prep the attic for new insulation.

Contaminated Insulation Removal

Signs you need it

You’ve had rodents in the attic, a roof leak, or a mold issue. In Marietta’s humidity, contaminated insulation becomes a health problem, not just an efficiency problem. The droppings and mold spores get pulled into your ductwork.

What it costs in Marietta

Contaminated insulation removal in Marietta runs $1.50 to $3.00 per square foot, with a typical attic job falling between $1,500 and $3,000.

How we do it

We remove everything, sanitize the attic surfaces, and address the entry points or leaks that caused the problem in the first place. Then we install fresh insulation and verify the attic is sealed.

What Insulation Removal & Replacement Costs in Marietta

Can you remove wet insulation from an attic in Marietta?

Yes, and you should. Wet insulation loses its R-value immediately, and in Marietta’s humid climate it will mold within days. We handle full wet insulation removal and dry-out before replacing it.

Do you handle vermiculite insulation in Marietta?

We do, including vermiculite that may contain asbestos. We follow strict containment protocols and never take chances with it. Call (866) 751-4428 and we’ll talk through what we found and how to proceed.

Attic Air Sealing in Marietta

Attic air sealing in Marietta addresses an invisible problem: the stack effect. Hot air rises through every unsealed crack, pulling humid outdoor air into your house through leaks at the rim joist and crawl space all summer. In the ranch homes along South Marietta, the gaps around plumbing vents, wiring penetrations, and recessed lights add up to the equivalent of leaving a window open year-round. We seal those leakage points before adding Attic Air Sealing insulation, because insulation over leaks is just a filter.

Attic Floor Air Sealing

Signs you need it

You can feel drafts in upstairs rooms in winter, or your attic smells like the rest of the house. In Marietta’s Lockheed-era homes, the attic floor is usually Swiss cheese. Sealing it first makes every other improvement worth more.

What it costs in Marietta

Attic floor air sealing in Marietta runs $0.75 to $1.50 per square foot, so a 1,200-square-foot attic typically costs $900 to $1,800.

How we do it

We pull back the existing insulation where needed, seal every penetration with foam or caulk, and lay the insulation back down. It’s manual, methodical work, and it’s the highest-ROI dollar you’ll spend on your attic.

Can Light & Duct Boot Sealing

Signs you need it

Your recessed lights glow in the attic instead of shining light down, or your utility bills spike in July and August. In Marietta’s hot summers, can lights and duct boots are major leak paths that also pull hot attic air into your conditioned space.

What it costs in Marietta

Can light and duct boot sealing in Marietta typically runs $15 to $35 per fixture, with most homes having 10 to 30 fixtures to seal.

How we do it

We seal each can light with a fire-rated cover and seal every duct boot to the drywall with mastic and foil tape. Then we test with a smoke pencil to verify no air is moving.

What Attic Air Sealing Costs in Marietta

Can you seal an attic without removing insulation in Marietta?

We work around the existing insulation where possible, but if the old material is compressed or contaminated, removal makes sealing more thorough and more effective. We’ll tell you which approach fits your attic.

How much can attic air sealing save in Marietta?

Most Marietta homes see a 10% to 20% reduction in heating and cooling use after a proper air-sealing job, with the biggest savings in July and August. Call (866) 751-4428 for an estimate. It’s free.

Wall Insulation in Marietta

Wall insulation in Marietta is the most overlooked retrofit for the 1950s-1970s ranch belt. Builders in the Lockheed era often left walls completely empty, or used thin batts that have since settled into a sliver. Meanwhile in East Cobb, the 1980s and 1990s two-story homes often have adequate wall insulation but persistent cold spots above garages. We do drill-and-fill retrofits and Wall Insulation injection foam, depending on what’s behind the drywall.

Drill & Fill Wall Insulation

Signs you need it

Your walls feel cold in winter even when the heat’s blasting, or you can hear outside noise too clearly. In south Marietta’s ranches, we often find exterior walls with zero insulation behind the drywall.

What it costs in Marietta

Drill and fill wall insulation in Marietta typically runs $2.00 to $4.00 per square foot of wall area, with a full exterior wall between $1,500 and $5,000 depending on the home’s size.

How we do it

We drill small holes through the drywall or exterior siding, blow in dense-pack cellulose, then patch and finish the holes. The process is clean and usually done in a single day.

Injection Foam Wall Insulation

Signs you need it

You have closed wall cavities, or you want the highest R-value per inch without opening up the walls. Injection foam works especially well in the bonus rooms over garages in East Cobb homes, where builders often skipped insulation in the knee walls.

What it costs in Marietta

Injection foam wall insulation in Marietta runs $3.00 to $6.00 per square foot, with a typical bonus room or exterior wall retrofit landing between $1,800 and $5,400.

How we do it

We inject slow-rise foam into each stud cavity through small holes, which expands to fill the space completely. It air-seals as it insulates, which is a big advantage in walls that have been drafty for decades.

What Wall Insulation Costs in Marietta

Can you insulate walls without opening them up in Marietta?

Yes. Drill-and-fill and injection foam both go in through small holes, typically 1 to 2 inches, that we patch afterward. Most of our Marietta wall retrofits are done this way.

How do I know if my Marietta walls have insulation?

We can check during a home energy audit with a thermal imaging camera, which shows the gaps between studs. Or we can drill a small inspection hole. Call (866) 751-4428 and we’ll set up an audit.

Attic Cleaning & Rodent Proofing in Marietta

Attic cleaning and rodent proofing in Marietta is a two-part job: remove what animals left, then make sure they can’t come back. The mature tree canopy across neighborhoods like Whitlock Heights and historic Marietta gives squirrels and roof rats easy access to rooflines, and our mild winters mean they never really leave. We clean out the droppings, sanitize the space, and then seal Attic Cleaning & Rodent Proofing entry points before new insulation goes in.

Attic Cleanout

Signs you need it

You hear scratching in the ceiling, or you see droppings when you poke your head into the attic. In Marietta’s older neighborhoods with big oak canopies, rodent activity in attics is constant. Wherever they go, they contaminate insulation.

What it costs in Marietta

Attic cleanout in Marietta typically runs $1 to $3 per square foot, so a 1,200-square-foot attic lands between $1,200 and $3,600 depending on the mess.

How we do it

We remove all contaminated insulation and debris, then vacuum the entire attic with HEPA-filtered equipment. You’ll get before-and-after photos so you can see exactly what left.

Rodent Proofing & Exclusion

Signs you need it

You’ve had animals in the attic before, even if you’re not sure how they got in. In Marietta, squirrels enter through soffit gaps and roof returns, and they’ll keep coming back until the entry points are physically sealed.

What it costs in Marietta

Rodent proofing and exclusion in Marietta typically costs $500 to $1,500, depending on the number of entry points and whether soffit or fascia repair is needed.

How we do it

We inspect the entire roofline and attic for entry points, seal them with steel mesh and foam, and set up monitoring if needed. Then we verify no animals are trapped inside before we finish.

What Attic Cleaning & Rodent Proofing Costs in Marietta

Do you offer attic cleaning as a standalone service in Marietta?

Yes. You don’t have to buy new insulation to get a clean attic. But many homeowners combine cleanout with rodent proofing and fresh insulation because the three go together naturally.

What keeps rodents out of a Marietta attic permanently?

Sealing every entry point with steel mesh that squirrels can’t chew through, plus trimming back tree branches that touch the roof. In Marietta’s mature neighborhoods, overhanging branches are the number one access route. Call (866) 751-4428 for an inspection.

Home Energy Audit in Marietta

A home energy audit in Marietta shows you exactly where conditioned air is leaking out and where your money is going with it. With this city’s mix of 1960s ranches and 1990s two-story builds, every house has a different leak signature. We run a blower door test to measure total leakage, scan with a thermal camera to find the exact gaps, and then give you a written report you can act on. It’s the single smartest starting point before any Home Energy Audit insulation decision.

Blower Door Test

Signs you need it

Your energy bills are consistently higher than your neighbors’, or you can’t figure out where drafts are coming from. The blower door test quantifies the problem instead of guessing.

What it costs in Marietta

A standalone blower door test in Marietta runs $100 to $250, often included as part of a full home energy audit.

How we do it

We mount a calibrated fan in an exterior door frame, depressurize the house, and measure airflow at a standard pressure. The number tells us total leakage area. Then we walk the house to find where it’s leaking.

Thermal Imaging Inspection

Signs you need it

Certain rooms are always the wrong temperature, or you suspect missing insulation in walls or ceilings. The thermal camera makes air leaks and insulation gaps visible, which matters in Marietta’s complex-roofline East Cobb homes.

What it costs in Marietta

Thermal imaging inspection in Marietta typically runs $150 to $400 as part of an energy audit.

How we do it

We scan every wall, ceiling, and floor surface with an infrared camera while the blower door is running. The temperature differences point straight to the leaks and missing insulation.

What Home Energy Audit Costs in Marietta

How long does a home energy audit take in Marietta?

Most audits run two to three hours, start to finish.

Pricing for Insulation in Marietta, GA

Price here depends on attic access, how much depth is needed to reach current code targets, whether old insulation like original rock wool must be removed first, and the size of bonus rooms or crawl spaces involved. We measure your home and write the exact price before any crew starts work.

FAQs About Insulation in Marietta, GA

How quickly can you schedule insulation work in Marietta?

We typically schedule estimates within a few days, and most attic insulation or air sealing jobs are completed in a single day. Homes with bonus rooms over the garage or multiple roof planes sometimes take a bit longer because of the extra knee wall and cavity work involved.

Do I need a permit for insulation work?

Most insulation work, including attic top-ups, air sealing, and radiant barrier installation, does not require a separate permit. Older homes with original rock wool or compressed batts sometimes need extra attic prep, which we cover during the estimate rather than treating it as a surprise later.

How does your written estimate work?

We inspect the attic, crawl space, or walls in person and provide a written estimate with the full scope and price before any work begins. That price stays fixed unless you request additional work once we’re on site.

Do you serve areas near Marietta?

Yes, we also cover the surrounding communities around Marietta, so homes just outside the city line can typically get the same estimate, scheduling, and installation process we use for jobs inside the city, without any difference in how we price or schedule the work.

What happens to my old insulation?

We remove and dispose of old, compressed, or contaminated insulation before installing anything new, whether that’s degraded batts, damaged blown-in material, or vermiculite that needs special handling. Removal is priced separately from new insulation so there are no surprises once we start.