Open-Cell Spray Foam Insulation in Lake Charles, LA
A budget-friendly air seal for interior walls and conditioned attics where you want spray foam performance without the cost of closed-cell.
$1,800 to $4,500 typical. Free quote, no obligation.
A budget-friendly air seal for interior walls and conditioned attics where you want spray foam performance without the cost of closed-cell.
$1,800 to $4,500 typical. Free quote, no obligation.
Local
Southwest Louisiana installers, not a national call center
Free quotes
No obligation, no pressure, fast turnaround
Closed & open cell
The right foam for your climate and budget
Moisture-first
Built for Gulf Coast humidity and storm rebuilds
Open-cell spray foam is the lighter, softer cousin of closed-cell. It expands more, fills cavities completely, and creates a genuine air seal at a lower cost per board foot. Its R-value is lower, around R-3.5 to R-4 per inch, but in the right spots that is plenty, and the air sealing alone delivers most of the comfort gain people are after.
We reach for open-cell in interior walls, conditioned attics, and sound-dampening applications where moisture control is not the main concern. It is excellent at killing drafts and quieting a house, and it costs noticeably less than closed-cell, which lets a budget stretch across more of the home.
The trade-off is moisture. Open-cell is more vapor-open, so in high-humidity SWLA assemblies that need a moisture barrier, closed-cell is the safer pick. The honest answer for most homes is a mix: closed-cell where moisture and strength matter, open-cell where they do not. We will lay that out clearly in your quote.
Every quote is itemized in writing before any foam goes up. Here is what a typical open-cell foam job includes.
Expands to fill cavities and stop drafts, the main driver of comfort gains.
Less expensive per board foot than closed-cell, so your budget covers more.
Soft, dense fill that noticeably quiets interior walls and floors.
Ideal for interior walls and conditioned attics, not moisture-critical assemblies.
These are typical Southwest Louisiana ranges. Your exact price depends on square footage, foam type, and access. Your written quote has the real number, with no surprises on install day.
Open-cell costs less than closed-cell. Many homes use a mix to balance budget and moisture control.
Send a few details and a local installer will reach out, usually within one business day.
Don't see yours? Send the form above and we'll get you an answer.
Closed-cell is dense, high R-value, and moisture-resistant. Open-cell is softer, lower R-value, more vapor-open, and cheaper. Open-cell wins on cost and sound; closed-cell wins on moisture and strength.
In the right assemblies, yes, especially interior walls and conditioned attics. Where you need a moisture barrier against Gulf humidity, closed-cell is the safer call. We help you place each foam where it belongs.
Yes. Air sealing is its strong suit and is responsible for most of the comfort and efficiency improvement you feel. It just has a lower R-value per inch than closed-cell.
Most open-cell projects run $1,800 to $4,500 depending on the area. It is the more affordable foam option, and your written quote spells out the details.
Tell us about your home or project and a local Southwest Louisiana installer will get back to you, usually within one business day.