Alvin's mix of in-town ranches and rural acreage means older attics that bake at 130-150 degrees from May through October, sweating metal outbuildings that drip without proper insulation, and crawl spaces where humidity never lets up. Houston Spray Foam Insulation has been serving Alvin (77511) and the surrounding areas since 2012, and we know exactly what the Gulf Coast climate does to a house that wasn't built to handle it.
Whether you're dealing with a cooling bill that's gotten out of control, a garage or shop that stays damp no matter what you do, or attic insulation that's settled and flattened after decades, our team has the experience to fix it right. We spray foam attics, crawl spaces, rim joists, metal buildings and barndominiums, handle insulation removal and replacement, and seal the air leaks that let your conditioned air escape. Call us at (346) 322-2588 for a free on-site estimate with written R-value and thickness specs.
Spray Foam Insulation in Alvin (77511)
Alvin's housing stock ranges from older slab-on-grade ranches with vented attics to rural properties with metal shops, pole barns and barndominiums. Nearly every home in the area routes its ductwork through an attic that becomes an oven during the long Houston cooling season. That same attic is where humidity condenses in the early morning, and where damp or flattened original insulation sits doing almost nothing. Crawl spaces under older homes hold standing moisture and bare subfloors. Metal buildings sweat and drip without closed-cell foam protection. The Gulf Coast's 90-plus percent summer humidity and constant vapor drive from outside in mean that any gap in your insulation or air sealing becomes a problem fast.
We've been spraying foam in Alvin and across the Houston area since 2012. We understand the local building codes that govern R-value, thickness, ignition barriers and thermal barriers in your area. We show up with fully insured crews, mechanical ventilation equipment for the cure period, and a commitment to leave your property clean and your insulation installed to spec. We also know when blown-in fiberglass is the right answer on a simple attic top-up, and we'll tell you so.
Our services in Alvin
- Attic Spray Foam Insulation in Alvin · Open-cell foam on the roof deck turns a 140°F Houston attic into conditioned…
- Closed Cell Spray Foam Insulation in Alvin · Two-pound closed-cell foam delivers R-6.5 per inch…
- Open Cell Spray Foam Insulation in Alvin · Half-pound open-cell foam air-seals attics and walls at a friendlier price per…
- Wall & Injection Foam Insulation in Alvin · Injection foam fills closed walls through small drilled ports, no demolition.
- Crawl Space Spray Foam Insulation in Alvin · Closed-cell foam on pier-and-beam subfloors and crawl space walls holds back…
- Rim Joist & Band Joist Spray Foam in Alvin · Band joists, cantilevers and bonus-room floors leak conditioned air at every…
- Garage Spray Foam Insulation in Alvin · Garage ceilings under bonus rooms and walls shared with the house…
- Metal Building & Barndominium Spray Foam in Alvin · Closed-cell foam is the only insulation that stops a Texas metal building from…
- Commercial & New Construction Spray Foam in Alvin · Warehouses, offices, churches and production builders served on schedule.
- Insulation Removal in Alvin · Old blown-in and batts vacuumed out before any new foam goes in, never buried.
- Insulation Replacement & Re-Insulation in Alvin · The full reset: old material removed, gaps air-sealed…
- Air Sealing in Alvin · Top plates, can lights, chases and hatches leak more cooled air than most walls.
How a Job Works in Alvin
We start with a free on-site assessment. You tell us what's happening: maybe your summer cooling bill is out of control, or you've got condensation in the attic, or a room over the garage won't heat or cool. We walk your attic, crawl space or metal building, take measurements, and identify what's there now. If insulation is wet, contaminated or blocking airflow in a way that matters, we tell you. If a roof is leaking or a crawl space has standing water, we fix the moisture first or we walk away. That's not a caveat, it's how you end up with foam that actually works.
Once we understand the scope, we prepare a written estimate that names the R-value, thickness, square footage or board footage, and the material (open cell or closed cell). You know exactly what you're paying for and why. On job day, our crew sets up mechanical ventilation, masks off occupied spaces if needed, and sprays to spec. The foam cures as we work. We observe a re-entry window of twenty-four to forty-eight hours before you move back in. We clean up our mess, walk through the finished work with you, and stay reachable if you have questions after we leave.
Spray foam pricing in Alvin depends on the area to cover, the thickness and R-value you need, whether you're using open cell or closed cell foam, and what has to be removed or prepared first. A typical attic foam job in Alvin runs from $1.50 per square foot for open cell to higher per-board-foot rates for closed cell, depending on depth and coverage. Wall injection foam for a retrofit runs around $2 per square foot. A crawl space typically starts around $2,500. Rim and band joist sealing starts at $650. If you have old insulation that has to come out first, add $950 and up for removal. The best way to know what your specific job will cost is to call us at (346) 322-2588 for a free on-site estimate. We'll measure, assess what's there now, and give you a written price with R-value and thickness spelled out. No surprises.
✅ Written Estimates with R-Value & Thickness Specs, fully insured for work in Alvin and nearby areas.
