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Top-Rated Spray foam insulation pros in Saint Johns - Updated Nov 2026

Avatar for Artic Spray Foam Insulation
Artic Spray Foam Insulation
5.0(
9
)

Serving Saint Johns, FL and surrounding areas

Approved

In business since 2020

Free estimates

Credit card accepted

"James provided a fast quote at a great price, then completed the job quickly and efficiently. I'd recommend Arctic Spray Foam for all insulation needs."
Sprayfoam
Sprayfoam
Response time3 days
15 neighbors recently requested a quote
Recommended by88%of homeowners
Avatar for Koala Insulation of Jacksonville
Koala Insulation of Jacksonville
4.9(
134
)

Serving Saint Johns, FL and surrounding areas

Approved

In business since 2020

Free estimates

Credit card accepted

"Bruce was very professional and knowledgeable. Answered all my questions. Josh was on time and did a good job spay foaming my garage attic. Reasonable priced. Would hire Koala again."
Insulation Types
Blown In Insulation
Spray Foam Insulation
Response time9 hrs
Response rate99%
2 neighbors recently requested a quote
Avatar for King Insulation
King Insulation
5.0(
6
)

Serving Saint Johns, FL and surrounding areas

Approved

In business since 2022

Free estimates

Small jobs welcome

"Igor is a professional and did great work for me. He educated me on the produc, gave me a fair price and did a great job at spray foaming my house. I would definitely recommend."
King Insulation
King Insulation
King Insulation
King Insulation
King Insulation

+60

Response time1 day
Recommended by80%of homeowners
Avatar for ProSeal Insulation LLC
ProSeal Insulation LLC
5.0(
10
)

Serving Saint Johns, 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.

Before: bare deck
After: spray foam
Roof deck foam
Attic assessment
Metal building foam

+5

31 neighbors recently requested a quote
Avatar for H&L Insulation
H&L Insulation
5.0(
101
)
Insulation - Install or Upgrade

Serving Saint Johns, FL and surrounding areas

Approved

Super Service Award Winner

In business since 2018

Free estimates

Emergency services offered

"I recently had the pleasure of working with H&L Insulation that was hired to blow fiberglass insulation into my attic, and I couldn't be more impressed with their professionalism. From the moment he arrived, he was punctual, courteous, and well-prepared. David took the time to explain the process to me and answered all of my questions patiently. He worked efficiently and meticulously, ensuring that every corner of the attic was properly insulated. He also made sure to clean up thoroughly afterwards, leaving no mess behind. Overall, his attention to detail and commitment to quality were outstanding. I highly recommend their services to anyone in need of attic insulation!""
Additional Photos
Additional Photos
Additional Photos
Additional Photos
Additional Photos

+6

44 neighbors recently requested a quote
Recommended by59%of homeowners
North Florida Insulation Co., Inc.
4.6(
44
)

Serving Saint Johns, 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!"
Response time11 hrs
26 neighbors recently requested a quote
Recommended by97%of homeowners
Avatar for EnLight.Energy
EnLight.Energy
3.5(
4
)

Serving Saint Johns, FL and surrounding areas

Approved

In business since 2016

Free estimates

Emergency services offered

EnLight partners with you help protect your home or business from rising electric rates and potential blackouts. Explore smarter ways to power up!

Multi-Layer Insulation
Cellulose Insulation Job
Solar Install
Solar Installation
Solar Fan

+4

Response time2 days
16 neighbors recently requested a quote
Recommended by66%of homeowners
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FAQs for spray foam insulation projects in Saint Johns, FL

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.