Houston's attics are baking at 140 degrees by June, and your ductwork is running through every one of them. From the pier-and-beam cottages inside the Loop to the two-story brick ranches of Meyerland and the master-planned subdivisions stretching out to Katy and The Woodlands, nearly every home in the Houston area routes its cooling and heating through a vented attic that turns into an oven in summer and a moisture trap year-round. That is the single biggest driver of your cooling bill, and spray foam insulation and air sealing is how you fix it.
Houston Spray Foam Insulation has been serving homeowners and property managers across Houston and the surrounding areas since 2012. We know the local building stock, the humidity that never stops, and exactly what it takes to seal an attic, crawl space, or rim joist the right way. When your energy bills spike or a room over the garage will not hold temperature, we show up with our own crew, write you a detailed estimate with R-value and thickness specs, and do the work honestly.
Spray Foam Insulation in Houston (77002)
Houston sprawls across flat Gulf Coast prairie in ring after ring of slab-on-grade neighborhoods, and nearly every home carries its ductwork through a vented attic. From May through October, those attics hit 130 to 150 degrees. Your air conditioning has to cool that ductwork before the air even reaches your living space, which is why your summer bills climb so fast. Inside the Loop and in neighborhoods like The Heights, Montrose, and the East End, pre-war bungalows sit on pier-and-beam foundations with ventilated crawl spaces underneath, where bare subfloors and exposed rim joists leak conditioned air straight into the ground. Older ranches in Braeswood and Spring Branch have attic insulation that flattened decades ago and no longer performs. The newer two-story stock in Cypress, Pearland, Sugar Land, and League City carries bonus rooms over garages and high ceilings with radiant-heat roof decks that demand sealed, foam-encapsulated attics to stay comfortable and dry.
Humidity is the constant enemy in Houston. Hurricane seasons, 90-plus percent summer moisture, and condensation drive every insulation decision. Vapor drive runs from the outside in, and damp insulation, visible moisture in attics and crawl spaces, and condensation on ductwork are the failures we see year-round. Our team has been solving these problems across every ring of the city for over a decade. We know which neighborhoods run which building types, where access is tight, and what has to come out before anything else can happen.
Our services in Houston
- Attic Spray Foam Insulation in Houston · Open-cell foam on the roof deck turns a 140°F Houston attic into conditioned…
- Closed Cell Spray Foam Insulation in Houston · Two-pound closed-cell foam delivers R-6.5 per inch…
- Open Cell Spray Foam Insulation in Houston · Half-pound open-cell foam air-seals attics and walls at a friendlier price per…
- Wall & Injection Foam Insulation in Houston · Injection foam fills closed walls through small drilled ports, no demolition.
- Crawl Space Spray Foam Insulation in Houston · Closed-cell foam on pier-and-beam subfloors and crawl space walls holds back…
- Rim Joist & Band Joist Spray Foam in Houston · Band joists, cantilevers and bonus-room floors leak conditioned air at every…
- Garage Spray Foam Insulation in Houston · Garage ceilings under bonus rooms and walls shared with the house…
- Metal Building & Barndominium Spray Foam in Houston · Closed-cell foam is the only insulation that stops a Texas metal building from…
- Commercial & New Construction Spray Foam in Houston · Warehouses, offices, churches and production builders served on schedule.
- Insulation Removal in Houston · Old blown-in and batts vacuumed out before any new foam goes in, never buried.
- Insulation Replacement & Re-Insulation in Houston · The full reset: old material removed, gaps air-sealed…
- Air Sealing in Houston · Top plates, can lights, chases and hatches leak more cooled air than most walls.
How a Job Works in Houston
We start with a free on-site assessment. One of our crew members will come to your property, walk your attic or crawl space, check for moisture, existing insulation condition, and access, and talk through what you are trying to fix. We take photos, measure the space, and explain what closed-cell or open-cell foam will do for you. You get a written estimate with R-value and thickness specs, and a clear price. No surprises.
On the day of the work, we set up mechanical ventilation to handle the cure process and keep odor to a minimum. If insulation has to come out first, we remove it and haul it away. We spray the foam in controlled passes at the manufacturer ratio and drum temperature, hitting the thickness you paid for. If you are living in the house, we give you a realistic re-entry window of twenty-four to forty-eight hours before the space is safe to occupy again. We coordinate around your HVAC, roofing, or other trades if they are on site.
When the foam is cured, we do a final walkthrough with you, answer questions, and leave your property clean. You have our number if anything comes up.
Spray foam insulation in Houston ranges widely depending on what you are spraying and what has to happen first. Attic foam typically runs from $1.50 per square foot for open-cell work on a sound attic to $2 or more per square foot for closed-cell on a sealed roof deck. Wall injection foam for closed cavities runs from $2 per square foot. Crawl space spray foam, which requires careful moisture management and often some substrate prep, starts at $2,500 for smaller spaces. Rim and band joist sealing starts around $650, and garage insulation from $1,200. If old, wet, or contaminated insulation has to come out first, removal starts at $950, and full replacement jobs start at $2,800. Metal buildings and barndominiums run from $1.75 per square foot depending on thickness and cell type. The key cost factors are the area to cover, the R-value and thickness you specify, whether you choose open or closed cell, what existing insulation or debris has to be removed, and how tight the access is. Call us at (346) 322-2588 for a free estimate. We will walk your space, answer your questions, and give you a firm price in writing.
✅ Written Estimates with R-Value & Thickness Specs, fully insured for work in Houston and nearby areas.
