Frisco's two-story brick homes with bonus rooms over three-car garages and steep composition roofs are built for the Dallas heat, but most still route their AC ductwork through vented attics that hit 140 degrees by mid-afternoon in July and August. That attic temperature drives your cooling bill up and leaves upstairs bedrooms hot no matter how hard the system runs, and if insulation settles or compresses over time, the problem only gets worse.
Mckinney Spray Foam Insulation has served Frisco (75034) and the McKinney area since 2012. We specialize in the spray foam and air sealing work that stops that heat leak at the source: sealing the rim and band joists where your walls meet the foundation, wrapping the attic floor or the underside of the roof deck with closed or open cell foam, and stopping the air leaks that let conditioned air escape before it reaches the rooms you live in. If your insulation is wet, compressed or fouled, we remove it first and do it right the second time.
Spray Foam Insulation in Frisco (75034)
The homes built in Frisco between the early 2000s and today are well-framed and well-roofed, but they were built to code at the time, not to today's energy standards. Most carry vented attics with fiberglass batts or blown-in cellulose that settles over a decade, leaving gaps and thin spots. Long duct runs from the central return in the attic to bedrooms and bonus rooms over the garage lose conditioned air to the unconditioned space around them. Rim and band joists where the first floor meets the foundation are often left with minimal or no insulation, and that rim is a direct thermal bridge to the slab. West-facing walls that bake in the afternoon sun and upstairs bedrooms that never cool down are the most common complaints we hear.
Spray foam stops that heat leak by sealing the air and insulating at the same time. A closed cell foam in the attic or under the roof deck gives you high R-value in a thin layer, protecting the roof assembly and stopping moisture from condensing on cold mornings. Open cell foam in walls and crawl spaces is gentler on the building envelope and costs less. Either way, the foam is sprayed to thickness, cured under mechanical ventilation, and left to off-gas before your family comes back inside. Our team has been doing this work in Frisco and the surrounding McKinney area for over a decade, and we know the local building stock and what works.
Our services in Frisco
- Attic Spray Foam Insulation in Frisco · Open-cell foam on the roof deck turns a 150°F McKinney attic into conditioned…
- Closed Cell Spray Foam Insulation in Frisco · Two-pound closed-cell foam delivers R-6.5 per inch with its own vapor retarder…
- Open Cell Spray Foam Insulation in Frisco · Half-pound open-cell foam air-seals attics and walls at a friendlier price per…
- Wall & Injection Foam Insulation in Frisco · Injection foam fills closed walls through small drilled ports, no demolition.
- Crawl Space Spray Foam Insulation in Frisco · Closed-cell foam on pier-and-beam subfloors stops cold floors in a freeze and…
- Rim Joist & Band Joist Spray Foam in Frisco · Band joists; cantilevers and bonus-room floors over garages leak conditioned…
- Garage Spray Foam Insulation in Frisco · Garage ceilings under bonus rooms and walls shared with the house are…
- Metal Building & Barndominium Spray Foam in Frisco · Closed-cell foam is the insulation that stops a Texas metal building from…
- Commercial & New Construction Spray Foam in Frisco · Warehouses; offices; churches and production builders served on schedule.
- Insulation Removal in Frisco · Old blown-in and batts vacuumed out before any new foam goes in, never buried.
- Insulation Replacement & Re-Insulation in Frisco · The full reset: old material removed; gaps air-sealed…
- Air Sealing in Frisco · Top plates; can lights; chases and attic hatches leak more cooled air than most…
How a Job Works in Frisco
We start with a free on-site estimate. Our team walks your attic, crawl space, or the walls you want to insulate, takes measurements, and talks through the options with you. Open cell or closed cell? Spray the whole attic floor or just the rim joists? Do we need to remove old insulation first, and if so, how much area? We give you a written estimate that names the R-value, the thickness we'll spray, the square footage or board footage, and the price. No surprises.
On the day of the work, we set up mechanical ventilation in the space being sprayed so fumes can escape as the foam cures. We mask off HVAC returns and any areas you want to protect, spray the foam to the thickness specified in your estimate, and let it cure. For an attic or crawl space in a Frisco home, that's typically twenty-four to forty-eight hours before the space is safe to re-enter. If you're living in the house, we coordinate the timing so the work happens when you can stay away from that area for the cure window.
After the foam cures, we clean up all equipment and debris, walk the space with you, and answer any questions about what was done and why. Your property leaves clean.
Spray foam pricing in Frisco depends on the area to cover, the thickness and R-value you need, the type of foam (open or closed cell), and whether old insulation has to come out first. A typical attic foam job in a Frisco two-story runs from $1.50 per square foot for open cell to $1.20 per board foot for closed cell, depending on thickness. Wall injection foam starts around $2 per square foot. Rim and band joist sealing typically runs from $650 to $1,200 depending on the linear footage. If you have wet, compressed or rodent-damaged insulation that needs removal, add $950 and up depending on the volume. The best way to get a real number for your home is a free on-site estimate. Call us at (469) 247-0288 and we'll schedule a time to walk your space and give you a written price with R-value and thickness specs.
✅ Written Estimates with R-Value & Thickness Specs, fully insured for work in Frisco and nearby areas.
