Katy's master-planned neighborhoods are built on slab foundations with two-story homes, bonus rooms over garages, and high ceilings that push ductwork straight through vented attics where temperatures hit 140 degrees or higher from May through October. When your cooling bills climb and rooms at the end of a duct run never reach temperature, spray foam insulation and air sealing are the fix.
Houston Spray Foam Insulation has been serving Katy (77494) and the surrounding Houston area since 2012. We understand the specific challenges of your neighborhood: the radiant heat from sealed roof decks, the Gulf Coast humidity that drives moisture into wall cavities and crawl spaces, and the cost of conditioning air that leaks away before it reaches your rooms. We show up with a truck and crew from Houston, not an out-of-state trailer, and we stay reachable when the work is done.
Spray Foam Insulation in Katy (77494)
Katy's housing stock runs from late 1990s through new construction, and nearly every home carries its HVAC ductwork through an unconditioned, vented attic. That attic becomes a convection oven in summer, and the temperature difference between the inside of your ducts and the air around them drives cooling load straight through your energy bill. Sealed roof decks and bonus rooms over garages make the problem worse: insulation that was adequate in 1998 has settled and compressed over twenty-five years, and new construction is moving toward sealed attics with spray foam because the code and the market both recognize that it works.
Humidity is the constant enemy in Katy. Summer moisture climbs to 90 percent or higher, and vapor drive pushes from outside in. Wall cavities that were never insulated, crawl spaces under slab-on-grade homes, and rim joists where the foundation meets the rim band all collect condensation and damp insulation. We have removed insulation from Katy attics and crawl spaces that was wet enough to drip, and we have sealed homes where closed-cell foam stopped the moisture cold.
Our team has been installing spray foam in Katy and across Houston for over a decade. We know which attics have tight access, which homes have active ductwork we have to work around, and where the building inspector will ask to see R-value and thickness specs on our estimate.
Our services in Katy
- Attic Spray Foam Insulation in Katy · Open-cell foam on the roof deck turns a 140°F Houston attic into conditioned…
- Closed Cell Spray Foam Insulation in Katy · Two-pound closed-cell foam delivers R-6.5 per inch…
- Open Cell Spray Foam Insulation in Katy · Half-pound open-cell foam air-seals attics and walls at a friendlier price per…
- Wall & Injection Foam Insulation in Katy · Injection foam fills closed walls through small drilled ports, no demolition.
- Crawl Space Spray Foam Insulation in Katy · Closed-cell foam on pier-and-beam subfloors and crawl space walls holds back…
- Rim Joist & Band Joist Spray Foam in Katy · Band joists, cantilevers and bonus-room floors leak conditioned air at every…
- Garage Spray Foam Insulation in Katy · Garage ceilings under bonus rooms and walls shared with the house…
- Metal Building & Barndominium Spray Foam in Katy · Closed-cell foam is the only insulation that stops a Texas metal building from…
- Commercial & New Construction Spray Foam in Katy · Warehouses, offices, churches and production builders served on schedule.
- Insulation Removal in Katy · Old blown-in and batts vacuumed out before any new foam goes in, never buried.
- Insulation Replacement & Re-Insulation in Katy · The full reset: old material removed, gaps air-sealed…
- Air Sealing in Katy · Top plates, can lights, chases and hatches leak more cooled air than most walls.
How a Job Works in Katy
We start with a free on-site assessment. We walk your attic, crawl space or walls, take measurements, and talk through what you are seeing: high bills, cold rooms, moisture, or insulation that has settled. We ask about your heating and cooling system, whether you have active ductwork we need to protect, and what the building department requires at your address. We leave with enough information to write a detailed estimate.
Your estimate includes R-value and thickness specs, the square footage or board footage we will cover, the type of foam (open cell or closed cell), and the price. If existing insulation has to come out first, we price that separately and explain why. If moisture is present, we do not spray over it. We fix the leak or the source of the condensation first, or we walk away.
On the day of the work, our crew sets up mechanical ventilation in your attic or crawl space to manage the smell during cure. We spray the foam at the correct ratio and drum temperature, hold thickness within tolerance on every pass, and leave the space properly ventilated. We tell you the re-entry window (typically 24 to 48 hours) and stick to it. When the work is done, we clean up, haul away scrap, and walk through with you to make sure everything is as we promised.
Spray foam pricing in Katy depends on what you are insulating, how much area we cover, and what has to happen first. Attic foam runs from $1.50 per square foot and up, depending on thickness and R-value. Wall and injection foam starts at $2 per square foot. Crawl space jobs typically run $2,500 and up. Rim joist and band joist sealing starts at $650. If existing insulation has to be removed first, add $950 and up for removal. Open cell foam is less expensive per board foot than closed cell, but closed cell stops moisture and gives you a higher R-value in a thinner application, which matters in tight attics and bonus rooms. The key cost drivers are the area to be covered, the R-value and thickness you need (which the building code and your comfort level determine), whether you choose open or closed cell, and whether contaminated or settled insulation has to come out before we spray. We provide a written estimate with all of those details spelled out. Call us at (346) 322-2588 for a free assessment and quote.
✅ Written Estimates with R-Value & Thickness Specs, fully insured for work in Katy and nearby areas.
