Spray foam insulation and air sealing are highly effective solutions for improving energy efficiency, comfort, and indoor air quality throughout your Austin home. Whether you're insulating an attic, sealing crawl spaces, retrofitting walls, or addressing rim joists, pricing varies based on factors like project size, foam type (closed cell or open cell), accessibility, and existing conditions. We believe in transparent pricing that reflects the quality and durability of professional spray foam installation.
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 150°F Austin attic into conditioned space. Ductwork and attic water lines end up inside the envelope, a lesson Winter Storm Uri taught. 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 structural stiffening. The right product for metal buildings and barndominiums; pier-and-beam subfloors and any Austin wall that has to handle both August heat and a hard freeze. |
| Open Cell Spray Foam Insulation | From $0.55/board ft | Half-pound open-cell foam air-seals attics and walls at a friendlier price per board foot. Sound dampening between rooms comes with it. We spell out where it belongs, and where a metal building or pier-and-beam 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 Austin's 1950s-60s ranches with empty cavities behind brick or limestone veneer and for older frame bungalows with wood siding. Ports are patched to match. |
| Crawl Space Spray Foam Insulation | From $2,500 | Closed-cell foam on pier-and-beam subfloors and crawl space skirts stops cold floors and holds back humid summer air. Central Austin's bungalows sit on them. Moisture and drainage get fixed first, we never spray over a wet crawl space. |
| Rim Joist & Band Joist Spray Foam | From $650 | Band joists; cantilevers and bonus-room floors over garages leak conditioned air at every framing gap. A closed-cell pass seals them for good, the small-ticket job with the fastest comfort payback in an Austin house. |
| Garage Spray Foam Insulation | From $1,200 | Garage ceilings under bonus rooms and walls shared with the house are foam-sealed against radiant afternoon 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 Texas metal building from sweating. Barndominiums; shops; pole barns and ag buildings sealed against condensation from Liberty Hill and Dripping Springs acreage to the east Travis industrial belt. |
| 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 east Travis industrial belt to the Taylor and Hutto corridor. |
| Insulation Removal | From $950 | Old blown-in and batts vacuumed out before any new foam goes in, never buried. Pipe-soaked material comes out too. We also cut out failed spray foam; the job most installers will not touch. Vermiculite gets flagged for testing; never disturbed. |
| 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; soaked by a frozen pipe or a roof leak; or twenty years past its job. |
| Air Sealing | From $650 | Top plates; can lights; chases and attic hatches leak more cooled air than most walls. We seal the leaks before insulating, the step that makes every R-value actually perform; the first fix an energy audit points to and the cheapest comfort fix in Austin. |
What Affects the Price
- Project Size and Square Footage : Larger projects typically have lower per-unit costs due to economies of scale. Attics, garages, and metal buildings are priced by square footage, while smaller targeted projects like rim joists have fixed base pricing.
- Foam Type Selection : Closed cell foam ($1.20/board ft) provides superior R-value and moisture resistance, while open cell foam ($0.55/board ft) is more budget-friendly and allows vapor permeability. Your choice impacts overall project cost.
- Site Accessibility and Existing Conditions : Difficult-to-reach areas, existing insulation that requires removal, or structural complications may affect labor time and final pricing. We assess these during your free estimate.
- Removal and Preparation Work : If old insulation, debris, or contaminated materials must be removed before installation, this adds to the project scope. Removal services start at $950, and replacement/re-insulation starts at $2,800.
What's included
- Travel included across the Austin area
- Professional labor & equipment
- Old insulation vacuumed out, bagged & hauled away
- Job site cleanup
- Written estimate before work begins
To get an accurate estimate, have your project area dimensions ready and note any existing insulation, moisture issues, or accessibility concerns. Our team will discuss your energy goals, preferred foam type, and air sealing needs during a free consultation. Call us at (737) 404-4885 to schedule your estimate and learn exactly what's included in your customized quote.
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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.
Pricing FAQ
Why do spray foam insulation prices vary so much between projects?
Pricing depends on multiple factors: project size, foam type (closed cell vs. open cell), accessibility, existing conditions, and whether removal or air sealing work is needed. A small rim joist project is priced differently than a full attic installation. We provide transparent, itemized estimates so you understand exactly what you're paying for.
How do I get a free estimate for my Austin home?
Contact Austin Spray Foam Insulation at (737) 404-4885 to schedule a free on-site consultation. Our team will assess your project, discuss your options, and provide a detailed, no-obligation quote based on your specific needs.
What payment options do you offer?
We work with homeowners to make spray foam insulation affordable. We accept multiple payment methods and can discuss financing options during your estimate. Ask our team about available plans when you call (737) 404-4885.
Are there any hidden fees in your spray foam pricing?
No. Our estimates include all labor, materials, cleanup, and disposal. We believe in transparent pricing so you know the total cost upfront. Any additional work beyond the original scope is discussed and approved before proceeding.
What's included in the starting prices you list?
Starting prices reflect basic project costs per square foot or board foot. Your final quote will account for your specific project details, site conditions, and any additional services like air sealing or insulation removal. We'll break everything down clearly in your estimate.