Pricing ranges for spray foam in North Texas, what drives the cost up or down, and how to know if a quote is fair.
Spray foam insulation is priced per board foot — that's one square foot at one inch of depth. The type of foam, the thickness required, and the size and accessibility of the space all affect the final number. Here's what to expect in the Frisco market in 2026.
Typical Pricing Ranges
Open-cell spray foam: $0.45-$0.75 per board foot. Closed-cell spray foam: $1.00-$1.75 per board foot. For a typical 2,000 sq ft Frisco home attic insulated with closed-cell to 2 inches, you're looking at roughly $3,000-$6,000 depending on access and current insulation conditions.
What Pushes the Price Up
Difficult access (low-pitch roofs, cramped attic spaces), the need to remove existing insulation before spraying, and higher target R-values that require more thickness all add to the cost. A quote that doesn't account for any of these is not a real quote.
What You're Paying For
Spray foam is not the cheapest insulation option upfront. It's the most effective one. Most Frisco homeowners see 20-30% lower summer electric bills after a spray foam attic job. On a $300/month summer Oncor bill, that's $60-$90 per month — $720-$1,080 per year. The math works in 4-6 years, and the foam lasts 20-30 years.
How to Read a Quote
A real quote should include the foam type, the target thickness, the total square footage, and any prep work. If a contractor is quoting you a single number without those details, ask for a breakdown. We provide itemized written quotes after every assessment.
