Houston Elite Spray Foam | Attic, Wall & Metal Building Spray Foam Insulation in Houston, TX
#1 Spray Foam Contractor in Houston, TX
Houston Elite Spray Foam provides spray foam insulation for homes and commercial buildings in Houston, TX and the surrounding area.
We spray open-cell and closed-cell foam that seals air leaks and holds back Gulf Coast humidity in attics, walls, crawl spaces, barndominiums and metal buildings.
We handle new construction and retrofits alike, from roofline attics over ductwork in suburban two-stories to pier-and-beam homes inside the Loop and steel shops on acreage north and west of town.
Our crew lives and works in the Houston area, and we build every recommendation around climate zone 2A heat, humidity and hurricane season.
Houston Elite Spray Foam also provides insulation services to The Woodlands, Spring, Cypress, Tomball, Katy, Sugar Land, Humble, Kingwood, Conroe, Pearland and the rest of Harris, Montgomery and Fort Bend counties.
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Spray Foam Insulation Services
Nearly every Houston house runs its air handler and ductwork in the attic, and on a July afternoon that attic sits at 140°F or hotter. Every leaky duct seam is pulling in that superheated, humid air.
We insulate Houston attics two ways:
- Roofline application (unvented attic): Foam goes on the underside of the roof deck, so the attic becomes semi-conditioned space and your ducts and air handler stop working inside an oven.
- Attic floor application (vented attic): Foam seals the ceiling drywall plane, top plates and penetrations, then blown insulation goes on top to reach the target depth.
For roofline jobs we usually spray about 5.5 inches of open-cell (roughly R-20) or 3 inches of closed-cell (roughly R-21). Where an older radiant barrier is stapled to the rafters, we check it first and remove or work around it so the foam bonds to the deck. We also seal knee walls, attic stair hatches and can lights, which leak badly in many 1970s and 1980s Houston homes.
Houston crawl spaces belong to older pier-and-beam homes in places like the Heights, Montrose and Garden Oaks. With humid Gulf air under the floor most of the year, fiberglass batts between the joists sag, soak up moisture and fall out.
We insulate the underside of the floor with closed-cell foam or, where the foundation allows, seal the perimeter skirting and rim. Closed-cell at 2 to 3 inches gives about R-13 to R-21 and acts as a vapor retarder.
Where we enclose the space, we add a heavy ground vapor barrier and seal the vents so the crawl stays drier and closer to indoor temperature. That cuts musty odors, cupped wood floors and sweaty ductwork under the house.
Exposed foam in most crawl spaces needs an ignition barrier. We apply an intumescent coating when the assembly calls for it.
Barndominiums are going up all over the acreage north and west of Houston. A steel shell with no insulation will drip condensation from the roof panels the first humid morning.
We spray closed-cell foam on the underside of the metal roof and sidewall panels, usually 2 to 3 inches, which stops condensation, seals laps and fasteners, and stiffens the panels. On interior partitions we use open-cell for quiet bedrooms and baths.
Shop-and-living combos are common, so we can foam the living quarters to a higher R-value and treat the shop bay for condensation control only. We plan thickness around your framing so drywall or liner panels still go on cleanly.
Roof leaks and open gaps at the slab edge need fixing first. We check for both during the walkthrough and note what needs attention.
Foam fills the whole wall cavity and seals around wiring, boxes and plumbing that fiberglass batts leave open, which matters in a climate where humid air is always trying to get in.
In a 2x4 exterior wall, 3.5 inches of open-cell gives about R-13, while 3 inches of closed-cell gives about R-21. In a 2x6 wall, 5.5 inches of open-cell reaches about R-20. Interior walls get open-cell mostly for sound control between rooms.
On new builds and gut remodels, including the many Houston homes rebuilt after flooding, we spray open studs before drywall. For finished walls we use injection foam through small holes, then patch each one. Open-cell in interior walls also quiets bedrooms, game rooms and home offices.
Rim Joist Spray Foam Insulation
Rim joists show up in Houston two-story homes between floors and in raised pier-and-beam houses. That band of framing has seams, pipe and wire penetrations and often just a loose batt shoved in place.
We spray 2 to 3 inches of closed-cell foam across each bay and onto the plate and subfloor edge. That gives about R-13 to R-21 and a continuous air and vapor seal.
Closed-cell is the right material here. It keeps humid outdoor air from reaching wood cooled by your AC, which is what leads to condensation and rot.
This is a small job with a clear payoff, and it often fits alongside a crawl space or attic project we are already doing.
Most Houston attached garages share a wall, and often a bonus room ceiling, with the house. Sealing those surfaces keeps garage heat out and limits exhaust and chemical fumes moving inside.
For garages turned into gyms, workshops or man caves, we insulate the walls and roof deck so a mini-split can actually keep up in August.
The garage door is the weak spot. We seal the framing and header around it, but the door panel itself usually needs its own insulation kit.
Foam left exposed in a garage needs an ignition barrier coating. We include it in the scope.
Metal Building Spray Foam Insulation
Houston metal buildings sweat. Humid air meets panels cooled overnight or by the AC, and condensation drips onto tools, inventory and slabs.
Closed-cell foam sprayed on the underside of the panels removes that cold, exposed surface. We usually apply 2 to 4 inches, for roughly R-14 to R-28 depending on how you use the building.
The foam also stiffens panels and seals fastener holes and laps, which helps during tropical storm winds and driving rain.
We work in shops, warehouses, storage buildings and ag barns across the Houston area and can schedule spraying around your operating hours.
Pole Barn Spray Foam Insulation
Pole barns around Tomball, Magnolia, Waller and Fulshear have the same condensation problem as steel buildings, plus open framing and wide purlin spacing.
We spray closed-cell foam directly onto the metal roof and wall panels and around purlins and girts. That forms a continuous air barrier without a separate vapor barrier layer.
Common setups include:
- Equipment, boat and RV storage — about 2 inches for condensation control
- Air-conditioned workshops — about 3 inches so a mini-split or AC unit can keep up
- Horse and livestock barns — foam plus a protective coating that holds up to washdown
Foam adds very little weight, which matters on post-frame buildings not designed for heavy insulation systems.
Foaming during framing lets us reach spots that close up later — cantilevers, chases, tray ceilings and the knee walls around bonus rooms.
We coordinate with builders and spray after electrical, plumbing and HVAC rough-ins. A typical house takes one to two days, and drywall can follow shortly after.
A tighter house changes HVAC sizing. Foamed homes often need smaller equipment, and we provide R-value documentation and support blower door testing so your HVAC contractor can size the system and plan fresh-air ventilation correctly.
Foam also helps builders hit the air-leakage targets that energy codes in the Houston area now require.
Commercial Spray Foam Services
Across Harris, Montgomery and Fort Bend counties, we spray closed-cell at 2 to 3 inches on walls and roof decks, plus open-cell between office and retail suites for sound control.
Closed-cell foam bonds to metal panels to stop condensation, reaching about R-13 at 2 inches as a vapor retarder for shops, contractor yards and pole barns.
Houston warehouse roofs bake under the summer sun, so we spray the underside of the deck to cut peak heat gain, building closed-cell to 4 inches or more for cooler storage.
Industrial Facility Spray Foam Insulation
We apply rated thermal or ignition barrier coatings with documentation for inspectors and insurers, using moisture-resistant closed-cell foam for washdown areas and humid plant floors.
From Waller County hay barns to Brazoria County equipment sheds, closed-cell on ceilings and sidewalls cuts fan runtime, limits rust from condensation and protects feed storage.
We price by the board foot. Foam type, thickness, roof height, removing old insulation, coatings and scheduling all affect cost, and every site visit ends in an itemized estimate.
Spray Foam vs. Other Insulation Types
Spray Foam vs Fiberglass Insulation
Fiberglass slows heat, but it does not stop air. Gaps around wiring, plumbing and framing let cool air out and humid air in, which we see constantly in Houston attics built in the 1980s and 1990s. Fiberglass batts run about R-2.9 to R-3.8 per inch with almost no air sealing, while spray foam gives about R-3.5 to R-7 per inch and seals as it goes.
Spray foam expands into those gaps and bonds to the framing, working as insulation and air barrier in a single layer.
Spray Foam vs Blown In Insulation
Blown-in cellulose or loose-fill fiberglass is blown across attic floors or into closed wall cavities, and it costs less up front than foam. It settles over time without sealing anything, and in Houston humidity cellulose can absorb moisture and compact. It also leaves your attic ductwork sitting in 140-degree air. Spray foam on the roof deck brings the attic inside the thermal envelope, so the ducts work in tempered space instead.
Signs You Need Spray Foam Insulation
Your AC Never Catches Up
If your AC runs all afternoon and the house still sits a few degrees above the thermostat, heat and humid air are getting in faster than the system can pull them out — usually through the attic. A sealed foam envelope keeps the cool air you paid for inside, so the setting actually holds on a 97-degree day.
Your Upstairs Is Hotter Than Downstairs
In two-story Houston homes, the upstairs bedrooms are often several degrees warmer than the first floor. That usually means heat is pouring through the attic and the ducts serving those rooms are losing cooling before it arrives. Sealing the roof deck evens the temperature out between floors.
Your HVAC Works Overtime for Nothing
An air handler that barely shuts off, yet still cannot hold the set temperature, is a sign that cooled air is leaking out before it reaches you. In a Houston attic that loss is huge. Sealing those gaps with spray foam takes load off the system so it runs the way it was designed to.
Drafts Near Outlets or Vents
If you feel air moving at an outlet cover, a can light or a baseboard, outside air has a direct path into the house — and in Houston that air brings humidity with it. Spray foam seals those penetrations completely, which batts and blown-in insulation cannot do.
Mold or Musty Smells Indoors
A musty smell, sweating supply vents or mildew on closet walls point to humid air getting into the house or the space under it. Closed-cell foam on a pier-and-beam floor, or a sealed roofline in the attic, cuts off that moisture at the source instead of covering up the symptoms.
Rising Summer Electric Bills
If your summer electric bills keep climbing compared with similar homes on your street, and nothing about your habits or rate has changed, air leakage is often the reason. A sealed foam envelope goes after that root cause and keeps cutting cooling load every summer after.
Why Are We the Best Spray Foam Contractor in Houston?
Our Houston Elite Spray Foam Process
Step 1: On-Site Assessment
We measure the space, check existing insulation and radiant barrier, and look for air leaks around ductwork, top plates and penetrations.
Step 2: Written Estimate
You get a written estimate showing the foam type, target thickness and R-value before we schedule any work.
Step 3: Installation
We cover floors and finished surfaces, set up ventilation, and dial in the rig's hose temperature and pressure for the day's heat and humidity, checking those readings throughout the job because off-ratio foam almost always traces back to poor temperature control. We spray in controlled passes instead of one thick layer, which keeps curing heat in a safe range and gives a consistent cell structure.
Step 4: Final Walkthrough
We trim overspray, haul off debris and walk the job with you to confirm full coverage.
Spray Foam Insulation Removal and Repair
Some foam jobs don't perform the way they should. Bad installs, roof leaks, storm damage and remodels all lead to foam that has to come out or be patched, and we handle both across the Houston area.
When Spray Foam Needs to Be Removed
Foam that was mixed or sprayed wrong is the most common reason we get removal calls. When the A and B sides run off-ratio or the rig is at the wrong temperature, the foam can stay sticky, crumble when pressed or keep a fishy odor that never goes away.
Other common reasons include:
- Roof leaks or hurricane damage that soaked foam and trapped water against the decking
- Rat and roof-rat damage in attics and crawl spaces
- Fire or smoke damage that requires full cavity replacement
- Remodels where new wiring, plumbing or ductwork must run through foamed cavities
- Foam sprayed too thick in one pass, leaving voids or scorched cores
We inspect the substrate before quoting removal. Foam grips wood hard, so removal is mechanical — scraping, cutting and grinding — and the timeline depends on square footage, foam type and access.
Repairing Damaged Spray Foam Insulation
Most problems do not call for a full tear-out. Gaps at the rim, shrinkage cracks along rafters and spots cut open by other trades can usually be resprayed once the old foam is trimmed back to a clean, solid edge.
How we handle repairs:
- Find the failure point, often with a thermal camera or an attic inspection
- Fix the cause first — a roof leak, pest entry or ventilation problem
- Cut out damaged foam to solid material and let the cavity dry
- Spray matching open-cell or closed-cell foam back to the original depth
- Check coverage at edges, seams and penetrations
Matching the foam type matters. Patching closed-cell with open-cell changes how that assembly handles moisture, so we identify the existing product before we spray.
Hear It From Our Clients
Houston Elite Spray Foam Insulation FAQs
Spray foam expands as it goes on and seals the small gaps that batts miss — top plates, plumbing penetrations, duct boots and attic bypasses.
That air seal pays off in Houston. Summer highs sit in the mid-90s with heavy humidity, and an unsealed house keeps pulling damp air into walls and attics, where it feeds mold and makes the AC work harder to dry the air.
Other practical benefits include:
- Shorter AC runtimes, since cooled air stays inside
- Ductwork in the attic working in tempered air instead of 140°F heat
- Better humidity control, especially with closed-cell under pier-and-beam floors
- Quieter rooms between floors and interior walls
- Added stiffness from closed-cell foam on walls and roof decks
Cost depends on square footage, the foam type and the thickness needed to reach your target R-value.
As a typical installed range, open-cell runs about $1.50 to $3.25 per square foot and closed-cell about $2.50 to $5.25 per square foot. By the board foot, that is about $0.45 to $0.70 for open-cell and $1.00 to $1.50 for closed-cell.
Most Houston attic projects land between $3,500 and $9,000, depending on roof size and pitch.
Crawl space, barndominium and wall work are quoted separately. We give you a written, itemized estimate after measuring on site, because a phone guess is rarely accurate.
Open-cell foam has cells that are not fully closed, so it stays soft and expands roughly 100 times its liquid volume. It gives about R-3.5 to R-3.8 per inch at around 0.5 lb/ft³, does not act as a vapor barrier, and costs less, which suits attic roof decks and interior walls.
Closed-cell foam has tightly packed sealed cells, making a dense, rigid material at about 2.0 lb/ft³. It delivers R-6.0 to R-7.0 per inch, works as a vapor retarder at 1.5 inches or more and costs more, which suits metal buildings, barndominiums, crawl spaces and rim joists.
In most Houston homes we recommend open-cell on the attic roof deck and closed-cell anywhere moisture or condensation is the main concern.
Yes, once it has cured. While we spray, the two components react and release vapors, which is why our crews wear supplied-air respirators and full protective gear.
We ask people and pets to stay out of the work area during spraying and for a re-entry period afterward — usually about 24 hours, depending on the product and ventilation.
After curing, the foam is inert. It does not feed mold, and it does not settle or sag over the years the way loose-fill insulation can.
We use products that meet ASTM E84 fire performance standards and add a thermal or ignition barrier wherever code calls for one.
Air leaks are a major source of cooling loss in most homes. The U.S. Department of Energy estimates that air sealing plus insulation can trim heating and cooling costs by around 15%.
Results depend on the house. A 1960s ranch in Spring Branch with leaky attic ducts usually sees a bigger change than a 2018 build in Katy that was already sealed well.
Homeowners who switch to a sealed, unvented attic often notice steadier temperatures upstairs and shorter AC cycles. Since cooling is the biggest energy load in a Houston summer, those shorter runtimes show up on the bill.
Most attic or crawl space jobs finish in a single day. Bigger projects — whole-house new construction, full retrofits, barndominiums or metal buildings — usually take two to three days.
A typical attic day looks like this:
- Prep and masking — 1 to 2 hours
- Spraying — 3 to 6 hours for an average attic
- Trimming and cleanup — 1 to 2 hours
Foam sets within minutes and fully cures within about 24 hours. Pulling out old insulation or radiant barrier, repairing roof decking or encapsulating a crawl space adds time, and we build that into the estimate before we start.