Serving Jacksonville, FL and surrounding areas
Approved
In business since 2020
Free estimates
Credit card accepted
"Insulation added to attic above garage"
Serving Jacksonville, FL and surrounding areas
Approved
Super Service Award Winner
In business since 2015
Free estimates
Emergency services offered
"Very easy to work with from estimate to scheduling to the actual project. Insulation looks fantastic!"
+5
Serving Jacksonville, FL and surrounding areas
Approved
Super Service Award Winner
In business since 2018
Free estimates
Emergency services offered
"David and his team was on time, efficient and easy to work with."
+6
Serving Jacksonville, FL and surrounding areas
Approved
In business since 2005
Free estimates
Credit card accepted
"This vendor was very professional, on time and reasonably priced. They cleaned up after themselves. I would hire them again for sure. Great to work with."
+1
Serving Jacksonville, FL and surrounding areas
Approved
In business since 2016
Free estimates
Warranties offered
ProSeal Insulation provides high-performance insulation services across North Florida. We specialize in spray foam, blown-in, batt, attic and crawl space insulation, as well as removal and air sealing. \n \nOur professional team is committed to doing the job right the first time, delivering cleaner, more comfortable, energy-efficient spaces. We offer both residential and commercial services with free in-person estimates and clear, honest communication every step of the way. \n \nContact us today to schedule your free estimate.
+5
Serving Jacksonville, FL and surrounding areas
Approved
In business since 1996
Free estimates
Emergency services offered
"They had good communication, prompt and easy scheduling, showed up on time and did a great job. I've let my neighbors know that I would recommend North Florida Insulation to update their home's insulation, also. I am hopeful the results will now begin showing up in our electric bills. Thanks!"
Serving Jacksonville, FL and surrounding areas
Approved
In business since 2020
Free estimates
Credit card accepted
"Had garage attic spray foamed by Artic Spray Foam and they did an outstanding job. I had covered some tool boxes but James's crew covered everything inside including floor, windows, door openers and once they were finished there was not a bit of overspray on anything. Employees polite and got the job done even with heat of the day being over 90 degrees. I would highly recommend Artic Spray Foam company. Thanks James RBW"
Serving Jacksonville, FL and surrounding areas
Approved
In business since 2022
Free estimates
Small jobs welcome
"The owner is the installer and takes great pride in his work. The job started and finished on time. I highly recommend King Insulation."
+60
Serving Jacksonville, FL and surrounding areas
Approved
Small jobs welcome
Offers commercial services
Here at mcguinness home improvement Llc we offer perfect results at the perfect price call or text me at 848-241-2259 and get your quote today
Serving Jacksonville, FL and surrounding areas
In business since 1977
Free estimates
Warranties offered
"We have an extremely small crawl space in the attic and they were able to spray in the insulation in the full attic (except the garageâ ¦donâ t know why garages arenâ t included). Love that they installed air vents prior to blowing in the insulation so thereâ s plenty of ventilation in the attic. They worked quickly and only took a few hours. We definitely can feel the difference and canâ t wait to see the difference in our electric bill."
+25
Old insulation should be removed when it shows damage, contamination, or heavy deterioration. If you notice water stains, rodent droppings, mold, or large gaps, plan on taking it out to protect your home’s energy performance and indoor air quality. Removing compromised material eliminates health hazards, cuts energy loss, and sets the stage for a safer, more efficient attic—all while keeping utility bills in check.
R-value measures how well insulation resists heat flow—the higher the number, the better it slows heat transfer. The right R-value keeps your home warmer in winter and cooler in summer, saving energy year-round. Match the rating to your climate zone and have a pro verify performance over time, because moisture or settling can lower R-value and cut efficiency.
Attic insulation can stay in place for 80 to 100 years, but its performance often drops after the first 15. As dust, moisture, or mold build up, the material loses R-value and allows heat to escape. Schedule periodic inspections so a pro can tell you when replacement makes sense—helping you keep energy bills down and indoor comfort up.
You can over-insulate an attic. Beyond the recommended R-value, extra layers don’t add efficiency and can trap moisture, leading to mold or reduced performance. A local insulation pro can measure current levels, confirm the right target for your climate, and advise on any adjustments so you avoid future energy or maintenance headaches.
Insulation can be damaged by mold, pests, water leaks, or accidental electrical contact. When the material is compromised, it loses R-value and can introduce health hazards. Removing and replacing affected sections restores efficiency, while routine inspections from a qualified pro help you catch problems early and keep your attic safe and energy-smart.
From average costs to expert advice, get all the answers you need to get your job done.
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