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5 Best Insulation Services in Atlanta (2026)

Ranked by real Google ratings and review volume · How we chose

Brad Smith
By Brad Smith, Home Services Expert · ✓ Updated · 8 min read

We compared 14 insulation services in Atlanta on Google Maps · 5 listed · How we rank

In an Atlanta summer, the attic decides how hard your air conditioner works, and plenty of older houses have an inch or two of original insulation left. The insulation services in Atlanta below hold more than 850 Google reviews between them, rated from 4.8 to a perfect 5.0, and they split between spray foam shops, blown-in attic specialists and companies that do both.

Short answer: Koala Insulation of Central Atlanta has the largest review base (4.9 stars from more than 360 Google reviews) and does attic blow-in and spray foam from Dunwoody. USA Insulation of Atlanta (4.8 from more than 230) adds wall injection foam, and Atlanta's Best Insulation (4.9 from more than 120) focuses on attic removal and top-ups. None of these companies lists prices, so expect to book an estimate.
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Atlanta Insulation Contractors Compared

# Business Rating Reviews Best for
1 Koala Insulation of Central Atlanta 4.9 ★ 367 Attic blow-in & spray foam View ›
2 USA Insulation of Atlanta 4.8 ★ 240 Wall injection foam & attics View ›
3 Atlanta's Best Insulation 4.9 ★ 128 Attic removal & replacement View ›
4 Georgia Insulation Atlanta 5.0 ★ 61 Spray foam in older homes View ›
5 GCS Spray Foam Insulation LLC 4.8 ★ 57 Spray foam plus roof repair View ›
5 Best Insulation Services in Atlanta (2026)

Insulation companies reviewed

Koala Insulation of Central Atlanta logo
#1 Overall🕑 Open 5 days/wk↩ Responds to reviews

Koala Insulation of Central Atlanta

4.9367 Google reviews

Koala Insulation of Central Atlanta is the Central Atlanta office of the Koala Insulation brand, on Chamblee Dunwoody Rd in Dunwoody. Its website lists spray foam, blown-in attic insulation, insulation removal, batt insulation, solar attic fans, air sealing, crawl space encapsulation and commercial insulation, and Google also files it under waterproofing and building restoration. Customers describe attic and spray foam jobs with a project manager as their contact.

What people praise

  • An itemized quote that could be customized on the spot, with no pressure to accept every option, per one customer
  • Dumpster delivered the day before and a crew in and out within four hours on an attic job
  • Project manager who kept a spray foam customer informed at each step
  • Blown-in job finished with a zippered attic entry, according to another reviewer

Worth knowing

  • Open weekdays only
Reputation scorecardrank in Atlanta
Rating4.9 / 5
Review volume367 · 96th
Confidencehigh
Recency2 months ago
Info completenesssite · phone · hours
Rating breakdown98% 5-star
✓ VerifiedSource: Google

Our take: More than 360 reviews at 4.9 across both attic blow-in and spray foam work. A solid first quote, especially if you are still deciding between the two.

Website+1404-994-1287 Directions

5579 - B Chamblee Dunwoody Rd Suite 144, Dunwoody, GA 30338

USA Insulation of Atlanta logo
#2🕑 Open 6 days/wk↩ Responds to reviews

USA Insulation of Atlanta

4.8240 Google reviews

USA Insulation of Atlanta is the local office of the USA Insulation brand, on Cordell Dr in College Park, and Google also lists it as an energy advisory service. Its website covers blown-in attic insulation and spray or injection foam, and walks through its wall process: remove siding where needed, drill holes, inject foam into the cavities, plug the holes and reinstall the siding. It offers free inspections and says financing is available with approved credit.

What people praise

  • Salesperson who explained the work and pointed out attic gaps to seal before insulating, per reviewers
  • Walls and attic insulated in one project, with a noticeably more comfortable house, according to a customer
  • Install crew took photos during the work and cleaned up afterward
  • Free attic inspection with options laid out clearly

Worth knowing

  • Wall injection can mean siding is removed and reinstalled on some homes, so ask how that will be handled
Reputation scorecardrank in Atlanta
Rating4.8 / 5
Review volume240 · 89th
Confidencehigh
Recency3 months ago
Info completenesssite · phone · hours
Rating breakdown89% 5-star
✓ VerifiedSource: Google

Our take: A 4.8 from more than 230 reviews, with wall injection as the clearest point of difference. Worth a quote for older houses with uninsulated walls.

Website+1678-270-2037 Directions

609 Cordell Dr Ste A, College Park, GA 30349

Atlanta's Best Insulation logo
#3🕑 Open 5 days/wk↩ Responds to reviews

Atlanta's Best Insulation

4.9128 Google reviews

Atlanta's Best Insulation works from Pierce Dr in Atlanta and focuses on attic insulation for homeowners, plus insulation for contractors and builders on new construction and remodels. Its website pitches topping up attic insulation to cut energy bills. Reviewers describe a full attic removal and replacement in a 1965 Marietta home, a shed insulated for use as a workout space, and an attic corrected to code.

What people praise

  • Estimator spent time in the attic before quoting and spotted bathroom fans venting into it, according to one customer
  • Familiar with a power company insulation rebate and told the customer about it
  • Two-day job with the house left clean, per the same reviewer
  • Fair, transparent pricing mentioned by several customers

Worth knowing

  • Open weekdays only, 9 AM to 5 PM
Reputation scorecardrank in Atlanta
Rating4.9 / 5
Review volume128 · 82nd
Confidencemoderate
Recency2 months ago
Info completenesssite · phone · hours
Rating breakdown95% 5-star
✓ VerifiedSource: Google

Our take: A 4.9 from more than 120 reviews and a good fit for older attics that need the old material pulled out first. Ask what the rebate paperwork involves.

Website+1770-474-5988 Directions

3411 Pierce Dr Ste W1, Atlanta, GA 30341

Georgia Insulation Atlanta logo
#4🕑 Open 5 days/wk↩ Responds to reviews

Georgia Insulation Atlanta

5.061 Google reviews

Georgia Insulation Atlanta works from Silver Hill Terrace SE in Atlanta and is listed on Google as an insulation contractor. Reviews are about spray foam: removing old attic insulation and replacing it with foam in a single day, a 101-year-old house, and general comfort and energy improvements.

What people praise

  • Old attic insulation removed and replaced with spray foam in one day, according to one customer
  • No large down payment, per a reviewer who works on older properties
  • Rescheduling handled graciously
  • Professional and detail-oriented crews, say several reviewers

Worth knowing

  • A smaller review base than the bigger names, so ask for recent references
Reputation scorecardrank in Atlanta
Rating5 / 5
Review volume61 · 75th
Confidenceearly
Recency11 months ago
Info completenesssite · phone · hours
Rating breakdown100% 5-star
✓ VerifiedSource: Google

Our take: Every one of its more than 60 ratings is 5 stars, and the work customers describe is spray foam in older houses. A reasonable choice for foam, with references.

Website+1470-764-7083 Directions

2956 Silver Hill Terrace SE, Atlanta, GA 30316

GCS Spray Foam Insulation LLC logo
#5🕑 Open 7 days↩ Responds to reviews

GCS Spray Foam Insulation LLC

4.857 Google reviews

GCS Spray Foam Insulation LLC is on N Druid Hills Rd in Atlanta and, according to its website, has offered spray foam and roofing services since 2008. The site lists residential and commercial spray foam, fiberglass, roof repair and roof replacement. Reviewers describe an attic spray foam job, the insulation of a large commercial gym, and a spray foam repair after storm damage to a roof.

What people praise

  • Commercial work handled, including a large gym, with careful masking, per a reviewer
  • Quick quote and transparent costs on an attic job, according to one customer
  • Walkthrough of the plan before and after the job
  • Storm-damage job completed in three days
Reputation scorecardrank in Atlanta
Rating4.8 / 5
Review volume57 · 68th
Confidenceearly
Recency8 months ago
Info completenesssite · phone · hours
Rating breakdown95% 5-star
✓ VerifiedSource: Google

Our take: A 4.8 from more than 55 reviews and an option when insulation and roof work overlap. Ask which crew handles the roofing side.

Website+1404-519-7012 Directions

2897 N Druid Hills Rd Ste 261, Atlanta, GA 30329

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What the scorecard measures

Every number on this page comes from public Google data on the date shown, not from opinion or payment. Rating is the live Google star average. Review volume is how many customers have rated the business, ranked against other Atlanta insulation contractors. Confidence weighs the rating by that volume, so a 4.9 from hundreds of people carries more weight than a 5.0 from a few dozen. Recency reflects how recently customers are still leaving reviews. No business can pay to change these numbers.

What shapes an insulation quote in Atlanta? (2026)

None of these companies publish prices, so there is no cost table. What moves the number is the material (spray foam, blown-in or batts), the square footage and depth you need, whether old insulation must be removed first, access to the attic or walls, and extras like air sealing, attic fans or a dumpster. Ask for the quote itemized by area and material, and ask whether a utility rebate applies.

Insulation help around Atlanta

These contractors work from Dunwoody and College Park, and from Pierce Dr, Silver Hill Terrace SE and N Druid Hills Rd in Atlanta. Reviewers mention homes in Marietta and Cobb County as well. Looking for insulation services near me? Call the closest one and ask about scheduling and travel to your neighborhood.

What to ask before hiring an insulation company

  • What material do you recommend for my attic or walls, and why?
  • Will the old insulation be removed first, and is that in the quote?
  • Does the quote include air sealing, and who fixes gaps found in the attic?
  • Is there a utility rebate I can claim, and will you help with the paperwork?
  • How long will the job take, and what do you need access to?

Frequently asked questions

Which Atlanta insulation companies install spray foam?

Koala Insulation of Central Atlanta lists spray foam on its website, GCS Spray Foam Insulation and Georgia Insulation Atlanta have reviews that are mostly about spray foam, and USA Insulation of Atlanta lists spray and injection foam. Ask each what foam type and thickness the quote covers.

Can an insulation company remove my old attic insulation first?

Koala lists insulation removal among its services. An Atlanta’s Best Insulation customer had old, settled attic insulation fully removed and replaced, and a Georgia Insulation Atlanta customer had old attic insulation taken out and replaced with spray foam in one day.

Do Atlanta insulation contractors know about utility rebates?

One Atlanta’s Best Insulation customer says the company knew about their power company’s insulation rebate and pointed it out. Ask any contractor you call whether a rebate applies to your job and who completes the paperwork.

Does wall insulation mean taking siding off?

USA Insulation of Atlanta’s website describes its wall process as removing siding on homes that have it, drilling holes, injecting foam into the wall cavities, plugging the holes and reinstalling the siding. Ask how the work will be done on your siding type.

Can I get a commercial building insulated in Atlanta?

Koala’s website lists commercial insulation, Atlanta’s Best Insulation’s site offers its services to contractors and builders, and a GCS Spray Foam customer had a large commercial gym insulated.

Where to start

Koala has the deepest review base for attic and foam work, USA Insulation suits uninsulated walls, and Atlanta’s Best Insulation fits attic removal and top-ups. Get an itemized written quote and ask about any rebate before you sign.

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