Jacksonville Spray Foam
About us

Jacksonville's hot-humid climate insulation specialists.

SprayFoamInsulationJacksonville.com exists to do one thing exceptionally well: make Jacksonville and Northeast Florida homes more comfortable, drier, and more efficient with the right insulation, installed the right way for our genuine hot-humid coastal climate.

A lot of "Florida insulation" content treats the whole state the same way — but a hot-humid Zone 2A coastal climate has a different heat-and-moisture problem than a drier inland one. We got into this trade to insulate for the climate Jacksonville actually has: relentless humidity pressing on the envelope year-round, garages that turn into heat-and-moisture traps, hurricane-adjacent wind and rain exposure, and an AC system that runs longer than it should when the envelope isn't sealed.

Spray foam insulation crew standing in front of a home near Jacksonville, Florida

Built for hot-humid coastal Florida

Jacksonville sits in IECC Climate Zone 2A — a hot-humid, cooling-dominated climate where summer relative humidity commonly runs 74-95% and air conditioning typically makes up the largest single share of a home's summer electric bill. Insulating this climate well means understanding that reality: the goal is stopping heat gain, humid-air infiltration, and moisture buildup together — not chasing an R-value borrowed from a dry desert or cold-climate market.

That's the gap we fill. We insulate for real hot-humid conditions — targeting DOE guidance for hot-humid Zone 2A attics (R30 to R49 depending on your starting point), sealing the envelope as we insulate, and paying close attention to the spaces that get overlooked, like garages and above-garage bonus rooms that quietly become the hottest, stuffiest part of the house. We install the full range of materials — open-cell and closed-cell spray foam — matched to the application and to Jacksonville's humidity and moisture exposure: attic, wall, garage, or new construction.

We also treat honesty as part of the job. We'll tell you plainly whether your attic needs a full re-do or just a targeted fix, and whether open-cell or closed-cell is the right call for a given space given its moisture exposure. The goal is a home that's genuinely cooler, drier, and more efficient through a real Jacksonville summer — and a homeowner who'd recommend us to a neighbor.

A whole-home approach

We don't sell foam off a truck — we solve comfort, moisture, and efficiency problems. That means we look at your home as a system, where insulation, air sealing, ductwork, and moisture control all work together. A beautifully insulated attic with unsealed duct boots still leaks conditioned air and lets humid air in; a musty bonus room rarely comes from just one cause.

It also means we stand behind our work. We install to documented R-values, prep and air-seal before we insulate, confirm roof condition before closed-cell roof-deck work, and take the time to detail the parts other crews rush — the attic hatch, the duct boots, the garage door framing. Those details are invisible when the job is done, but they're exactly what determine whether your home is genuinely cooler and drier a year later.

Whether you're a homeowner chasing a lower summer electric bill, a family tired of a musty bonus room over the garage, or a builder who needs a reliable insulation partner on a new Northeast Florida project, we bring the same thing to the table: real expertise in insulating for a genuine hot-humid coastal climate, straightforward advice, and work we're proud to put our name on.

How we work

What you can expect from us

Climate-first

We insulate for Jacksonville's real hot-humid coastal climate — not a generic statewide spec. Right R-values, moisture-sealed envelopes, and garage heat control built in.

Whole-system quality

Air sealing, insulation, and moisture control handled together and installed carefully, so your new R-value actually performs through a real Jacksonville summer.

Code-literate

We build to DOE guidance for hot-humid IECC Zone 2A homes — not a generic statewide minimum copied from a drier or colder climate.

Straight talk

Honest assessments and clear quotes. We recommend what your home needs — never an upsell you don't.

Get your free insulation quote

Tell us about your home and we'll put together a clear, no-pressure spray foam insulation quote — built for Jacksonville's real hot-humid coastal climate.