Jacksonville humidity has a sneaky way of making the attic feel like its own little swamp. If my AC is working overtime, I’m starting to wonder whether the problem’s actually above my head: a lack of proper attic insulation.
That’s why I’ve been looking into the best spray foam insulation in Jacksonville. A good install can help seal air leaks, improve temperature control, and keep muggy outdoor air from creeping indoors.
Of course, not every contractor handles foam the same way. I narrowed down the local options to find the ones I’d actually consider calling before another Florida summer turns the attic into a sauna.
How much does spray foam insulation cost in Jacksonville?
Most professional spray foam insulation jobs in Jacksonville cost around $2,500 to $7,500 for a standard home. The final price depends on the foam type, coverage area, and how much prep the space needs.
Open-cell spray foam usually costs about $0.44 to $0.65 per board foot. Installed, expect roughly $1.50 to $3.00 per square foot.
Closed-cell spray foam costs more, around $1.00 to $1.50 per board foot. Installed pricing typically runs from $1.75 to $4.50+ per square foot.
Attics with tight access, old insulation removal, or moisture issues can push the total higher.
1. Clark Spray Foam

Website
Address: 333 1st St N Ste 200
Contact: (904) 885-9983 | [email protected]
Hours: Monday-Friday, 8 AM – 5 PM
Clark Spray Foam stood out to me because owner Michael Clark stays closely involved with the work instead of disappearing once the estimate is signed.
The company says it keeps installations in-house too, which gives the whole setup a more hands-on feel.
They handle spray foam projects around Jacksonville and currently advertise 10% off for customers who request a quote through the website. However, I’d treat that as a nice bonus rather than a forever deal, since promotions can change.
For a Jacksonville attic, their focus on sealing air leaks makes sense if you’re trying to keep heat and humidity from making the AC work harder than it needs to.
That’s the kind of practical upgrade I’d rather pay for than keep feeding the electric bill.
The main drawback is the schedule. They’re closed on weekends, so weekday-only availability may not suit everyone.
Customer Reviews
Professional Service and Excellent Results
Everyone from this company was very professional and easy to work with. In North Florida, I’m used to contractors showing up, fixing something, creating a huge mess, and then just leaving the mess in my house. This company was the total opposite!! It was refreshing to have a friendly sales rep and also work with professional office management. The crew did a great job! I am excited to cut back on AC and heating costs with this new spray foam insulation. Everyone was efficient, effective, and reliable.
- Michael Ward | Google Reviews
Thorough Assessment and Professional Application
Clark Spray Foam did an excellent job spraying the underside of our home. Josh Enfinger was very thorough in his initial assessment, and the quote was right on. William and his crew were very professional and did an excellent job spraying. My wife and I highly recommend Clark Spray Foam.
- Henry Abels | Google Reviews
2. Green Energy Spray Foam Insulation

Website
Address: 8285 Western Way Circle #23
Contact: (904) 679-9790 | [email protected]
Hours: Monday-Friday, 8 AM – 7 PM | Saturday, 9 AM – noon
Green Energy Spray Foam Insulation caught my eye because they do more than just foam-and-go attic jobs.
They handle spray foam, blown-in insulation, fiberglass, cellulose, removal work, and energy audits, so there’s room to compare options.
They’ve been in the insulation and energy-efficiency business for more than 20 years, which is reassuring in a climate as muggy as Jacksonville’s.
I like that they offer free estimates too, especially when attic work can get expensive fast.
Financing is available for qualified customers, which can make a bigger retrofit easier to swallow. Their broader insulation lineup is handy if spray foam turns out not to be the best fit for your home.
The main drawback is material choice. Their spray foam is petroleum-based, so eco-minded homeowners may prefer alternatives like cellulose.
Customer Reviews
Knowledgeable, Punctual, and Professional Team
Camille and his team deserve every star. Knowledgeable, punctual, and professional. They sprayed my entire home and couldn’t ask for a better experience. If you are looking for a spray foam contractor, Green Energy is who you want.
- Ryan Pucker | Google Reviews
High-Quality, Energy-Efficient Results
I couldn’t be happier with the work Green Energy Spray Foam Insulation did for my home. From the initial consultation to the final application, their team was professional, punctual, and incredibly knowledgeable. They took the time to explain the benefits of spray foam and made sure I understood the entire process. The results speak for themselves — my home is noticeably more energy-efficient, quieter, and more comfortable. If you’re looking to improve your insulation and save on energy costs, I highly recommend Green Energy Spray Foam Insulation. Top-tier service from start to finish!
- FEETZ | Google Reviews
3. 360 Energy Spray Foam Insulation

Website
Address: 4720 Salisbury Rd Suite #2886
Contact: 904-679-9572 | [email protected]
Hours: Monday-Friday, 9 AM – 5 PM
360 Energy Spray Foam Insulation is one I’d consider if the attic needs more than a quick top-up.
They handle open- and closed-cell foam, blown-in insulation, and old insulation removal, so the job can stay fairly streamlined.
The company says its team brings more than 15 years of insulation experience, which helps when Jacksonville heat and humidity are part of the equation.
Free quotes are available too, which makes it easier to compare options before committing.
I like that they cover both installation and cleanup rather than leaving you to juggle separate crews. Their closed-cell foam is aimed at air sealing and moisture resistance, both useful in North Florida’s muggy climate.
The main drawback is scheduling. Their regular hours are Monday through Friday, with no standard weekend availability.
Customer Reviews
Exceeded Expectations on New Home
Ricardo and his crew came to Ocala to spray foam my new home. He was right on time and got his crew (who were amazing) right to work. They did an amazing job, as I am very particular about who is working on my new home, so I have to say they went beyond my expectations. They left it very clean and did an outstanding job.
- Janice Spencer | Google Reviews
Professional Service and Outstanding Job
If you’re considering doing the spray foam, this is the company you want to go with. They did an outstanding job on our place; highly recommend them. They were very professional and cleaned everything up at the end of the job.
- robert conner | Google Reviews
4. Custom Spray Foam Solutions

Website
Address: 4102 Maggie Ln, Middleburg
Contact: 904-472-3700 | [email protected]
Hours: Monday-Friday, 8 AM – 5 PM
Custom Spray Foam Solutions feels refreshingly hands-on for a contractor serving the Jacksonville area.
They prefer to review projects onsite and recommend the amount and type of foam that actually fits the building.
I like their stated approach of not pushing customers into insulation they don’t need. They use top-brand spray foam products too, which is a better selling point than flashy promises about miracle energy savings.
A large share of their work comes from local builders, so they’re used to fitting insulation into bigger construction projects.
That could be useful if you’re tackling an attic upgrade as part of a broader renovation.
The main drawback is their weekday-only schedule. They’re closed on weekends, which gives you fewer standard appointment windows if your workweek is already packed.
Customer Reviews
Professional and Caring Home Service
Carson at Custom Spray Foam Solutions did a fantastic job spray foaming the crawl space of our historic Riverside home. He was professional, knowledgeable, and treated our home with great care. The difference in comfort was immediate. Highly
- Kayla Sheldon | Google Reviews
Quick Quote and Professional Installation
I got a quick quote. When I made a decision, they were available to work on my project within 4 days. Came when they said, did a good job, and cleaned up great. Everything just as promised. Highly recommend.
- Terry Knight | Google Reviews
5. ProSeal Insulation LLC

Website
Areas Served: Jacksonville and all Northeast Florida communities
Contact: (904) 842-3202 | [email protected]
Hours: 24/7 support availability
ProSeal Insulation LLC caught my attention because they’re available around the clock, which is handy when a project schedule refuses to behave.
They work on both homes and commercial properties across Jacksonville and Northeast Florida.
I like that they don’t jump straight to spraying foam. Their team checks for air leaks, moisture concerns, and damaged insulation first, which makes the process feel a bit more thoughtful.
They offer open-cell and closed-cell spray foam, along with other insulation options, so you’re not boxed into one material.
Free estimates and workmanship warranties add a little extra reassurance before the attic starts swallowing your budget.
The only catch is that projects typically begin with an in-person visit. That’s thorough, but not ideal if you were hoping for a quick ballpark quote over the phone.
Customer Reviews
Professional and Tidy Insulation Service
Excellent attic insulation company! These guys did a great job on our spray foam encapsulation of a problematic attic space. Very professional, courteous, and tidy crew. They were on time, as scheduled, and competitively priced.
- Gideon Development | Google Reviews
Knowledgeable Reps and Neat Work
ProSeal insulated an addition at my home, spray-foamed the roof and put fiberglass batts in the walls, plus had my interior walls done too for sound. Knowledgeable rep answered all my questions at the start, and really neat work from the installers. A+!
- brian corcoran | Google Reviews




