Spray foam insulation and air sealing are among the most effective ways to improve your home's energy efficiency, comfort, and indoor air quality. At Corpus Christi Spray Foam Insulation, we offer comprehensive solutions for attics, crawl spaces, rim joists, garages, walls, and more, using both closed cell and open cell foam tailored to your needs. Pricing varies based on project scope, foam type, square footage, accessibility, and site conditions, but we're committed to transparent, competitive pricing that reflects the quality and durability of our work.
Pricing guide
These rates are indicative. Every job is unique: size, access, complexity. Request a free estimate for exact pricing tailored to your situation.
| Service | Price | Details |
|---|---|---|
| Attic Spray Foam Insulation | From $1.50/sq ft | Open-cell foam on the roof deck turns a Corpus Christi attic that bakes at 150°F into conditioned space. The ductwork and air handler end up inside the envelope. Every estimate lists the R-value; thickness per pass and board footage. |
| Closed Cell Spray Foam Insulation | From $1.20/board ft | Two-pound closed-cell foam delivers R-6.5 per inch with its own vapor retarder and real stiffening on the roof deck. It shrugs off flood water. The right product for elevated floors on pilings; metal buildings and any coastal wall facing Gulf humidity. |
| Open Cell Spray Foam Insulation | From $0.55/board ft | Half-pound open-cell foam air-seals attics and interior walls at a friendlier price per board foot. Sound dampening between bedrooms comes with it. We spell out where it belongs, and where flood exposure or a raised floor calls for closed cell instead. |
| Wall & Injection Foam Insulation | From $2/sq ft | Injection foam fills closed walls through small drilled ports, no demolition. The retrofit answer for Corpus Christi's 1950s-70s brick-veneer ranches and older frame homes with empty cavities. Ports go along a mortar joint or under a siding course and are patched to match. |
| Crawl Space Spray Foam Insulation | From $2,500 | Most homes here sit on slab, but pier-and-beam houses and raised homes on pilings have open undersides. Closed-cell foam on the subfloor holds back humid Gulf air and survives storm surge. Drainage gets fixed first. |
| Rim Joist & Band Joist Spray Foam | From $650 | No basements here, but bonus-room floors, cantilevers and raised-home band joists leak cooled air. A closed-cell pass seals them for good; the small-ticket job with the fastest comfort payback. |
| Garage Spray Foam Insulation | From $1,200 | Garage ceilings under bonus rooms and walls shared with the house are foam-sealed against radiant Gulf heat. Workshop conversions are handled the same way. The difference between a storage oven and usable space. |
| Metal Building & Barndominium Spray Foam | From $1.75/sq ft | Closed-cell foam is the insulation that stops a Coastal Bend metal building from dripping in the humidity. Boat barns; shops; barndominiums and farm buildings sealed against condensation and salt air from Robstown cotton country to Rockport waterfront lots. |
| Commercial & New Construction Spray Foam | Free commercial estimate | Warehouses; offices; churches and production builders served on schedule. Code-compliant assemblies come with documentation your inspector will actually accept. Phased work keeps your operation running from the port and refinery corridor to the Portland and Gregory industrial belt. |
| Insulation Removal | From $950 | Old blown-in and batts vacuumed out before any new foam goes in, never buried. Storm-soaked and moldy material and rodent nests come out with it. We also cut out failed spray foam; the job most installers will not touch. Vermiculite gets flagged for testing. |
| Insulation Replacement & Re-Insulation | From $2,800 | The full reset: old material removed; gaps air-sealed; new foam installed to current code R-values. The right call when insulation is flattened; rodent-fouled; soaked by a hurricane roof leak, or when a new roof is going on anyway. |
| Air Sealing | From $650 | Top plates; can lights; chases and attic hatches pull humid Gulf air into a Corpus Christi house all year. We seal the leaks before insulating, it cuts the sticky feel indoors and is the cheapest comfort fix on the Coastal Bend. |
What Affects the Price
- Project Size and Square Footage : Larger projects typically have lower per-unit costs due to economies of scale. A small attic retrofit will cost more per square foot than a 3,000 sq ft attic insulation project.
- Foam Type (Closed Cell vs. Open Cell) : Closed cell foam ($1.20/board ft) provides superior R-value and moisture resistance, making it ideal for humid climates and moisture-prone areas. Open cell foam ($0.55/board ft) is a budget-friendly option for dry interior spaces.
- Accessibility and Site Conditions : Difficult-to-reach areas, existing insulation removal, tight crawl spaces, or complex roof geometries require more labor and time, which increases the final cost.
- Additional Services and Preparation : Air sealing, insulation removal and replacement, and structural repairs add to the project cost but deliver long-term energy savings and prevent future issues like drafts and moisture damage.
What's included
- Travel included across the Corpus Christi area
- Professional labor & equipment
- Old insulation vacuumed out, bagged & hauled away
- Job site cleanup
- Written estimate before work begins
To get an accurate estimate for your spray foam insulation project, call us at (361) 278-8446 and be ready to describe your project type (attic, crawl space, garage, walls, etc.), approximate square footage, current insulation status, and any specific concerns like air leaks or moisture. Our team will schedule a free on-site assessment to evaluate accessibility, existing conditions, and your energy goals, ensuring your estimate reflects real project requirements and long-term value.
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Indicative ranges only. Final pricing depends on the thickness and R-value specified, what has to come out first, access, and whether open or closed cell is the right product. Measured on site at the board foot. Minimum job charges apply on small jobs.