How Much Does Spray Foam Insulation Cost in Schertz, TX?

If you are thinking about upgrading the insulation in your Schertz home, you’ve probably hit a frustrating roadblock: no one wants to give you a straight answer on pricing. Most contractors hide behind "call for a free quote" buttons because they want a salesperson in your living room before they talk numbers.

At Schertz Spray Foam Insulation, we believe in radical transparency. Upgrading to spray foam is a major investment, and you deserve to know the real numbers before you ever pick up the phone.

Here is the honest, unfiltered breakdown of exactly what spray foam insulation costs in Texas in 2026.

The Two Types of Foam

Before we talk numbers, you have to understand that there are two entirely different products, and they cost different amounts because they do different jobs:

1. Open-Cell Foam: Expands massively, creates a perfect air seal, and is mostly used for attics and interior walls. It is the cheaper option.
2. Closed-Cell Foam: Extremely dense, completely waterproof, and acts as a vapor barrier. It is primarily used for crawl spaces under pier-and-beam homes and metal buildings. It is the more expensive option.

2026 Pricing Breakdown by Board Foot

In the industry, foam is priced by the "board foot" (an area that is 1 foot by 1 foot, and 1 inch thick).

Here are the current 2026 averages in the South Texas market:

• Open-Cell Spray Foam: $0.90 to $1.60 per board foot installed.
• Closed-Cell Spray Foam: $1.30 to $3.25 per board foot installed.

Real-World Math: What Does a 2,000 Sq Ft Attic Actually Cost?

Nobody buys foam by the "board foot"—you buy it for a specific project. Let's look at the most common project we do: sealing the attic of a standard 2,000-square-foot home in Schertz to stop the summer heat.

For an attic, we exclusively use open-cell foam, sprayed directly onto the underside of the roof deck.

The Variables:

• Roof Pitch: A 2,000 sq ft house does not have a 2,000 sq ft roof. Because your roof is pitched (slanted), the actual surface area we have to spray is larger—usually around 2,400 to 2,600 square feet.
• Thickness: To meet code and properly insulate against the Texas heat, we typically spray open-cell foam at a depth of about 5.5 inches to achieve an R-20 to R-22 rating.

The Estimate:

When you factor in the labor, the material, and the thickness required, a typical attic project in Schertz runs between $2.50 and $4.00 per square foot of roof area.

Therefore, for a standard 2,000 sq ft home (with roughly 2,500 sq ft of roof deck), you can expect the project to cost anywhere from $6,250 to $10,000.

What Else Affects the Price?

Why is there a range? Why isn't it just a flat number? Because every house is different. Several factors can push your quote toward the higher or lower end of that range:

1. Old Insulation Removal: If you currently have old fiberglass or blown-in cellulose on your attic floor, it's highly recommended (and sometimes necessary) to vacuum it out before we seal the attic. Removal and disposal usually add $1,500 to $2,500 to a project.
2. Accessibility: If your attic has vaulted ceilings, extremely tight crawl spaces, or complex framing that makes it difficult for our crew to move around safely, the labor costs will increase.
3. Minimum Service Fees: Setting up a massive spray foam rig, running the heated hoses, and suiting up takes time. Most professional companies in Texas have a minimum job fee of $1,000 to $2,000, regardless of how small the repair is.

Is the Investment Worth It?

Spending $8,000 on insulation is a tough pill to swallow until you look at your CPS Energy bill in August.

When you spray foam your attic, you aren't just adding fluff—you are completely sealing your home's envelope. Your attic temperature drops by 40 degrees. Your AC unit isn't running non-stop. Most of our customers see a 30% to 40% reduction in their monthly energy bills.

Over the span of 5 to 7 Texas summers, the foam literally pays for itself in energy savings, not to mention the added lifespan of your HVAC unit since it isn't working overtime.

Get a Real Quote for Your Home

The numbers above are solid averages for 2026, but the only way to know exactly what your project will cost is to have an expert look at your specific home.

If you’re ready to stop guessing and want a transparent, no-BS quote, contact Schertz Spray Foam Insulation today. We’ll measure your roof, assess your current insulation, and give you a firm number to solve your heat problems once and for all.