Spray foam insulation and air sealing are highly effective ways to improve your home's energy efficiency, comfort, and air quality in Rapid City. Whether you're insulating an attic, sealing crawl spaces, upgrading rim joists, or tackling a full wall retrofit, pricing depends on several key factors including project scope, foam type (closed cell or open cell), accessibility, and current insulation conditions. We're committed to transparent pricing so you know exactly what to expect before we begin 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 | On estimate |
| Closed Cell Spray Foam Insulation | From $1.20/board ft | On estimate |
| Open Cell Spray Foam Insulation | From $0.55/board ft | On estimate |
| Wall & Injection Foam Insulation | From $2/sq ft | On estimate |
| Crawl Space Spray Foam Insulation | From $2,500 | On estimate |
| Rim Joist & Band Joist Spray Foam | From $650 | On estimate |
| Garage Spray Foam Insulation | From $1,200 | On estimate |
| Metal Building & Barndominium Spray Foam | From $1.75/sq ft | On estimate |
| Commercial & New Construction Spray Foam | Free commercial estimate | On estimate |
| Insulation Removal | From $950 | On estimate |
| Insulation Replacement & Re-Insulation | From $2,800 | On estimate |
| Air Sealing | From $650 | On estimate |
What Affects the Price
- Project Size and Area : Larger projects typically cost less per square foot due to economies of scale. Attics, metal buildings, and barndominiums are priced per square foot, while smaller targeted areas like rim joists have fixed starting prices.
- 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 a cost-effective option for interior applications. Your project needs determine which type is best.
- Accessibility and Complexity : Hard-to-reach areas, low crawl spaces, or homes with existing insulation to remove increase labor time and may affect final pricing. We assess accessibility during the estimate process.
- Existing Conditions and Removal : If old insulation, debris, or contamination is present, removal and cleanup services (starting at $950) may be necessary before installation, impacting your total project cost.
What's included
- Travel included across the Rapid City 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 Rapid City home, call us at (605) 519-6148 with details about the area you want to insulate, current insulation status, and any specific concerns like air leaks or moisture issues. Our team will schedule a free assessment to measure your space, evaluate accessibility, and provide a transparent quote tailored to your needs. Having photos or measurements ready helps us give you a more precise estimate.
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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.