Spray Foam Insulation in Charleston, SC

Find top-rated spray foam contractors and save up to 30% on energy bills

💰 Estimated Energy Savings in Charleston

30%
Average Energy Savings
Typical range: 25% - 35%
$1,188
Estimated Annual Savings
Based on $330/month average energy cost
5 years
Average Payback Period
Return on investment timeline

Note: Actual savings vary based on home size, current insulation, energy rates, and climate conditions. These estimates are based on Department of Energy data for Hot-Humid.

Verified Contractors in Charleston

Ticomex spray foam insulation

Specialist

Direct: 8434596821

5
2 Google reviews

Recent Reviews:

cesar augsuto gomes Estaca★★★★★a year ago

organized professional left everything clean service rating 10 highly recommend

Gabriel Suares★★★★★a year ago

Atlantic Spray Foam Charleston

Specialist

Direct: 8437074066

5
5 Google reviews

Recent Reviews:

Timothy Liptak★★★★★in the last week

I had the best experience with this company. The insulation they did on my barn is perfect. They are also one of the neatest contractors I have hired here. I didn't have to clean up after them!

Orlando Mirage★★★★★7 months ago

If you’re looking for a QUALITY spray foam company that provides top notch insulation that’s backed my customer service, look no further! I had a metal car port and lean too extension sprayed just before the heat started up and I couldn’t be more impressed with the dramatic heat difference! I promise all future spray foam inquiries will be sent their way, and with very appropriate pricing you won’t be disappointed!

Richard Graham★★★★★6 months ago

They did a great job for me. The employees were very professional and truly cared about doing a good job. I haven’t received an electric bill since the job was finished but the attic is significantly cooler than it was and I’m expecting a significantly lower electric bill.

Thermolators - Spray Foam Insulation

Specialist

Direct: 8006743446

5
1 Google reviews

Recent Reviews:

Sharmaine Joy Alaan★★★★★4 years ago

Foam Tech Professionals, LLC

Direct: 8435570037

5
1 Google reviews

Recent Reviews:

Jimmie McCants★★★★★4 years ago

Great!!

New Leaf Sprayfoam

Specialist

Direct: 8436079865

5
6 Google reviews

Recent Reviews:

Jesse Strait★★★★★3 months ago

These guys are awesome. Greg and Kyle arrived on time and did a fantastic Spray foam job in my attic. No job is too small or too big for their team. Thanks again for the excellent work.

S M★★★★★5 months ago

Found this company on Google and gave them a try, glad I did. I needed the rim joists of my crawlspace spray foamed and I was having trouble getting companies to come out. Much less the ones who to even quote me a small job. Not only did New Leaf come do the job at a great price they were here to inspect and give an estimate in less than 30 minutes after I called. That's a customer focused business. The actual work was done the same week and by all accounts did above and beyond what they said they would do as far as coverage and depth. To top it off they located a small point of water intrusion in a rim joist for me that I fixed ahead of the work. Considering the crawlspace company that encapsulated the crawlspace with a name ending with one commonly know for blenders these days was in there a half dozen times trying to find an intrusion point never was able to find it. Great guys that do great work for a great price. Thanks again for everything.

Robert Bolus★★★★★a month ago

New Leaf Sprayfoam took on my small job at a very affordable price. They were very neat and cleaned up so well that you wouldn’t even have known they were there. I highly recommend.

IBP Charleston

Direct: 8889073090

5
5 Google reviews

Recent Reviews:

Caroline Merriman★★★★★3 months ago

Jose is the best! Very professional and clean. Noticeable difference in our son’s room that’s attached to attic- it keeps the heat in during the winter and stays cool in the summer. Highly recommend!

Steven Antley★★★★★3 months ago

Very solid company. Had them spray foam insulation in a home I am remodeling and they did an outstanding job, communication was great as well. 10/10 job, would recommend to anybody!

Rebecca Wylie★★★★★3 months ago

I could not find a better product nor installer to apply this insulation to our beach house! Fair price, courteous, on time and left the area clean! Reduced our power bill, too! Only wish we had done this years ago.

JWR Sales Co

Direct: 8662254464

5
1 Google reviews

Recent Reviews:

Mavis Manigault★★★★★5 years ago

Spray Foam Genie Charleston

Specialist

Direct: 8542288159

5
5 Google reviews

Recent Reviews:

Chris Jackson★★★★★8 months ago

Sloane and his team did an outstanding job on the roof of my shop. Currently renovating it and they were extremely accommodating working around things I didn't have time to remove. I am very happy with the job they did and thankful our paths crossed.

Rene Leblanc★★★★★2 months ago

The guys came in took care of everything that needed to be done They were very professional cleaned up after the job was completed. I would highly recommend them to anybody if you’re interested in insulating your house. It does a great job.

Shana Robinson★★★★★8 months ago

Spray foam Genie did a great job on my basement insulation. I was very happy with the technicians as they were very attentive and knowledgeable to all my needs. Would highly recommend this company. Fair price, good work!

Ecofoam Insulation and Coatings

🏆Certified Pro

Direct: 8437849300

4.8
72 Google reviews

Recent Reviews:

Lynn Lugo★★★★★a year ago

I would highly recommend Eco foam insulation and coatings to anyone! From the time I made my initial call until my project was finished was only 7 days! Clay was very professional and extremely knowledgeable about spray foam and services. Workers were focused and effective. I would do business with this company anytime.

Victor Tyson★★★★★a year ago

I had spray foam insulation installed in the attic and they did a wonderful job. I could tell a difference in the AC cooling the first day the foam was sprayed. The price was great and it was a pleasure dealing with these guys. Thanks for the wonderful service as I’d recommend them to anyone.

John Schwarzkopf★★★★★10 months ago

Outstanding job from Biily giving me an estimate on my shop to the crew doing the installation. They showed up on time and did an excellent job from prep to cleanup at a fair price.

Affordable Spray Foam

Specialist

Direct: 8432701846

4.7
13 Google reviews

Recent Reviews:

Jon Maddux★★★★★2 years ago

Larry is one of the good contractors in Charleston!! (those are becoming scarce!) I would not hesitate to hire him and his company again, and I cannot recommend them enough for spray foam insulation. Larry knows building science, he is prompt & courteous, he won't up-sell you more than you need, and most importantly he keeps his word. We used Affordable to spray foam our 2 attic spaces with open-cell foam. One also houses our air conditioner and the other is a storage space. The whole experience was very easy and we are completely happy. Update 1/17/24: we hired Larry to spray closed cell foam on the walls of our crawlspace as part of our encapsulation project. The walls are brick so not easy to seal. Came out great!!

Britni Mayfield★★★★★5 months ago

Larry and his crew are great guys! He answered all the questions I had when he came out to look at the space I needed insulated. Everyone on the crew was so nice and did a great job with the spray. If/when we do our crawlspace, definitely using them again.

Scott Wickersham★★★★★4 years ago

Larry was great to work with from start to finish. For anyone wondering how well the product works....it’s amazing. My unit barely runs because once the target temp is reached...it holds it really well. All of a sudden, the attic is a temperature controlled space now, so the storage possibilities are not limited like before. Larry is a straight shooter and everything went exactly as planned. I chose him after speaking and getting quotes from 3 other companies. Don’t waste your time time and call this company 1st.

Easy Way Insulation

Direct: 8437475309

4.5
6 Google reviews

Recent Reviews:

paula sanders★★★★★2 years ago

I’ve never met a more nicer and compassionate person than Hunter! He was prompt, efficient and made sure I was satisfied. I will most definitely recommend him and Easy Way!!

Me You★★★★★5 years ago

Easy Way Insulated our city water supply & back flow valve system. The quality of the work and materials is the absolutely the best. The craftsmanship of the assembly is just perfect. It's easy to see why these guys are so good, they care about the quality of work they produce. I would recommend them for any job, big or small. Thank you for your amazing talent as this type of work is an Art. Don Yanzer

K Brown★★★★★3 years ago

Nice friendly staff, live unload took a bit but they went as quick as they could

Foam Insulation Solutions LLC

Specialist

Direct: 8439718332

Affordable spray foam insulation of the carolina's

Specialist

Direct: 8434179857

Frequently Asked Questions — Spray Foam Insulation in Charleston

Is spray foam insulation a good choice in hot and humid climates like Charleston?
Absolutely. Hot and humid climates like Charleston, SC are actually where spray foam insulation delivers some of its best results. Closed-cell spray foam acts as both an insulation layer and a moisture/vapor barrier, preventing the humidity infiltration that causes mold, rot, and air conditioning inefficiency. Homeowners in SC typically see 20–35% reductions in cooling costs after installation. One important note: because spray foam creates a tight building envelope, proper mechanical ventilation is essential in humid climates to manage interior moisture from daily activities like cooking and bathing.
What type of spray foam is best for homes in Charleston?
In hot and humid climates like Charleston, SC, closed-cell spray foam is generally recommended for exterior walls, crawl spaces, and attics. Its high density creates a moisture barrier critical in humid environments. Open-cell foam can be used in interior walls for soundproofing and actually allows some vapor movement, which can be beneficial in certain wall assemblies. A qualified local contractor can assess your specific home and recommend the best approach.
Can spray foam insulation help reduce my AC bills in Charleston?
Yes — significantly. Air conditioning accounts for the majority of energy costs in hot climates like Charleston, SC. Spray foam seals all gaps and cracks that allow conditioned air to escape, which is the primary cause of high AC bills. Most homeowners in hot climates report 20–30% reductions in cooling costs after spray foam installation.
Is spray foam insulation worth the cost?
For most homeowners, yes. Spray foam creates an air-tight seal that traditional insulation cannot match, reducing energy bills by 15–35% annually. It also adds structural rigidity, acts as a moisture and vapor barrier, reduces outside noise, and can increase home resale value. The higher upfront cost compared to fiberglass is typically recovered within 3–7 years. One important note: because spray foam creates a very tight building envelope, proper mechanical ventilation is important to maintain healthy indoor air quality and prevent interior moisture buildup. This is typically handled by an Energy Recovery Ventilator (ERV) — a system that brings fresh outside air in while pushing stale air out, recovering the energy from the outgoing air so you don't waste what you paid to heat or cool — or a Heat Recovery Ventilator (HRV), which works similarly but is optimized for cold climates. A qualified contractor will assess whether your home needs ventilation upgrades as part of the installation.
How much does spray foam insulation cost?
Spray foam insulation typically costs $1.00–$3.00 per square foot installed, depending on the type and your location. Open-cell foam runs $0.44–$0.65 per board foot, while closed-cell foam costs $1.00–$2.00 per board foot. A typical 2,000 sq ft home attic costs $2,000–$6,000. Most homeowners recoup this investment within 3–7 years through energy savings of 15–35% annually.
What is the difference between open-cell and closed-cell spray foam?
Open-cell spray foam is softer, less dense, and less expensive. It expands significantly and is ideal for interior walls, attics, and soundproofing. Closed-cell spray foam is denser, stronger, and provides a moisture barrier — making it better for exterior applications, crawl spaces, and areas prone to flooding or humidity. Closed-cell also has a higher R-value per inch (R-6 to R-7 vs R-3.5 to R-4 for open-cell). One key difference: open-cell foam allows some vapor movement, while closed-cell acts as a vapor barrier — an important consideration for your home's ventilation needs.
How long does spray foam insulation last?
Spray foam insulation is one of the most durable insulation options available, with a lifespan of 80+ years when properly installed. Unlike fiberglass batting which can sag and settle over time, spray foam maintains its shape and insulating properties indefinitely. It will typically outlast the building it is installed in.
How do I find a qualified spray foam insulation contractor?
Look for contractors who are licensed, insured, and have verifiable reviews. Spray foam requires specialized equipment and training — improper installation can cause off-gassing, adhesion failure, or fire hazards. Ask for references, verify their insurance, and get at least 2–3 quotes. A qualified contractor will also assess your home's ventilation needs — a tightly sealed spray foam installation requires adequate mechanical ventilation to prevent moisture and indoor air quality issues. FoamMatch pre-screens all listed contractors for licensing and insurance so you can compare verified professionals in your area.
How long does spray foam installation take?
Most residential spray foam jobs take 1–2 days depending on the size of the area. A standard attic takes 4–8 hours. After spraying, the foam cures within 24 hours, though most contractors recommend waiting 24–72 hours before occupying the space due to off-gassing during the curing process.
Does spray foam insulation need to be replaced?
No — spray foam insulation does not need to be replaced under normal circumstances. Unlike fiberglass insulation which degrades over time, spray foam maintains its R-value and air sealing properties for the life of the building. The only reasons to remove or replace spray foam are water damage, renovation work, or improper original installation.