Services · Pasadena, TX
Spray foam insulation services
Open-cell. Closed-cell. Attic. Crawl. Garage. Metal building. Free on-site estimates across Pasadena and southeast Houston.
See why insulation matters more in 2026 as ERCOT load grows and rates climb. Or compare 6 insulation types head-to-head. Not sure whether to replace your AC or fix the attic first? See our guide on whether to replace your AC or add insulation in Houston.
Call (346) 394-7871What's the difference between open-cell and closed-cell spray foam?
Open-cell spray foam is lower density (0.5 lb/ft³), runs about R-3.7 per inch, is vapor permeable, and costs roughly half as much per board foot. It is the typical pick for attic underside in Pasadena's humid Gulf Coast climate. Closed-cell is denser (2.0 lb/ft³), runs about R-6.5 per inch, acts as a Class II vapor retarder, is water resistant, and adds structural rigidity. Closed-cell wins for crawl spaces, rim joists, metal buildings, and flood-prone properties. Both products air-seal effectively. The right choice depends on the application, not the price tag.
| Property | Open-cell | Closed-cell |
|---|---|---|
| Density | 0.5 lb/ft³ | 2.0 lb/ft³ |
| R-value per inch | ~3.7 | ~6.5 |
| Vapor permeance | Vapor permeable | Class II vapor retarder |
| Best for | Attic underside, sound walls | Crawl spaces, rim joists, metal buildings |
| Cost (installed) | $0.50–$1.00/board ft | $1.00–$2.00/board ft |
Most common attic application in Pasadena. Expands aggressively. Fills every cavity. Air-seals against the roof deck. Breathes. Lets wall and ceiling assemblies dry to the inside in our humid Gulf Coast climate.
Where it shines.
- Attic roof deck in unvented (sealed) attic assemblies. The gold standard for Houston metro homes with HVAC ducts in the attic.
- Interior walls for sound dampening between bedrooms, home offices, theater rooms.
- Retrofit jobs where every dollar of R-value matters and budget is tight.
Price. $0.50 to $1.00 per board foot installed in Pasadena. Final price set after on-site measure.
Denser. Structural. Water resistant. Highest R-value per inch of any common building insulation. Acts as a Class II vapor retarder at typical thicknesses.
Where it shines.
- Crawl spaces and rim joists. Air seal, vapor block, and pest deterrent in one pass.
- Exterior walls in tight 2x4 cavities where you need maximum R-value.
- Below-grade walls and basement perimeters.
- Metal buildings, barndominiums, and pole barns. Metal has no thermal break. Foam fixes that.
- Flood-prone properties. Closed-cell does not absorb water like open-cell or fiberglass.
Price. $1.00 to $2.00 per board foot installed in Pasadena. Roughly 2x open-cell. You can use about half the depth for the same R-value.
The attic is where most Pasadena homeowners get the biggest bang for the buck. Houston metro attics regularly hit 130°F+ in summer. Whatever insulation is between you and that heat dome is doing the heavy lifting on your AC bill.
Three attic strategies.
- Blown-in fiberglass or cellulose top-up. Add R-value over existing batts to meet R-49 code. Lowest cost. Does not solve air leakage.
- Open-cell foam on the roof deck (unvented attic). Seals the attic into the conditioned envelope. Best long-term comfort and HVAC efficiency win in Pasadena's climate.
- Insulation removal. Rodent-damaged, water-damaged, or contaminated insulation removed before new install. Decontamination handled separately when needed.
See our dedicated page on attic insulation in Pasadena for the full blown-in, batt, and foam comparison. Call (346) 394-7871 for an attic walk-through and honest recommendation.
Older Pasadena homes and many bayou-adjacent properties sit on pier-and-beam foundations with vented crawl spaces. That setup invites humid Gulf Coast air, mold, and pest pressure under the floor.
Closed-cell spray foam at the rim joist and underside of the floor system air-seals the home, locks out moisture, and dramatically improves first-floor comfort in winter.
Encapsulation projects (sealing the entire crawl, conditioning the space) are also available when scope justifies the cost.
Detached garages, shop buildings, barndominiums, and steel pole barns are perfect closed-cell foam candidates. Metal is a thermal nightmare. It conducts heat. It sweats with condensation. It is impossible to insulate effectively with batts.
Closed-cell foam sprayed directly to the metal panels stops condensation, locks the envelope, and turns a 100°F shop into a usable workspace.
Pasadena and surrounding Harris County have a strong barndominium and rural-residential mix. Partner crews work these jobs regularly.
Where does spray foam go in a Pasadena home?
The four most common applications in Pasadena homes: attic roof deck (open-cell, unvented assembly to bring HVAC ducts inside the conditioned envelope), crawl space and rim joist (closed-cell, air-seal and vapor block on pier-and-beam foundations), exterior walls during new construction or renovation (open-cell or closed-cell depending on cavity depth and budget), and metal buildings, barndominiums, and shop spaces (closed-cell sprayed directly to steel panels to stop condensation and thermal bridging). Most retrofit jobs in the Pasadena service area focus on the attic first — that's where the biggest comfort and bill impact lives in a Houston-metro climate.
How long does spray foam insulation last?
Properly installed spray foam lasts 80+ years. The polyurethane chemistry does not degrade, sag, or settle the way fiberglass batts and cellulose do. R-value holds steady over the life of the home. Manufacturer warranties typically run 10 to 25 years on the install itself, covering adhesion and product defects. The foam product itself is widely treated by industry sources (SPFA member data) as a permanent home improvement — install it once, it stays put for the life of the structure.
What we install, by neighborhood
Service mix patterns we see across the Pasadena service area.
- Pasadena. Open-cell on the roof deck is the most common spec — 1965-1995 ranch homes with original R-19 batts, ducts in attic.
- Deer Park. Closed-cell rim joist + open-cell roof deck combo is typical — refinery-corridor homes pulled stricter on air infiltration.
- La Porte. Closed-cell on the coastal rim joists and exterior wall retrofits — wind exposure and moisture drive the closed-cell preference.
- South Houston. Smaller attics, faster open-cell jobs, often inside a single morning.
- Channelview. Metal-building closed-cell foam dominates here — barndominiums, shop buildings, and pole barns in the industrial-residential mix.
- Galena Park. Older housing stock, frequent insulation removal + open-cell roof-deck retrofit pattern.
Outside this list, we still take the call. Most jobs in Harris and Galveston counties are workable.
What to expect from a Pasadena spray foam job
- Free phone consult. You call (346) 394-7871. We capture your address, square footage, problem areas, and timeline.
- Free on-site estimate. A licensed Texas spray foam contractor visits, measures, walks the attic and crawl, and delivers a written scope and price. Usually inside 48 hours of your call.
- Schedule. Most jobs are scheduled inside 1 to 2 weeks. Storm-related and emergency jobs can sometimes be faster.
- Install day. Most attic-only jobs finish in one day. Crews tarp, prep, spray, trim, clean. Re-occupancy is typically the same evening.
- Walk-through. Contractor walks the finished work with you. Explains warranty terms. Provides documentation for any rebate or tax credit you may be eligible for.