Spray foam insulation and air sealing are highly effective ways to improve your home's energy efficiency, comfort, and indoor air quality in Winston-Salem. Whether you need attic insulation, closed or open cell foam, wall retrofit work, crawl space sealing, or complete insulation removal and replacement, pricing depends on several factors including project size, foam type, accessibility, and existing conditions. We're committed to transparent pricing so you understand exactly what you're investing in.
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 Winston-Salem attic into conditioned space. The air handler and ductwork that so many Triad homes run overhead end up inside the envelope. Every estimate lists the R-value target; the thickness per pass; the 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 crawl space walls; daylight basements; metal buildings and anywhere Carolina humidity and red-clay moisture push hardest. |
| 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 Triad crawl space or basement wall calls for closed cell instead. |
| Wall & Injection Foam Insulation | From $2/sq ft | Injection foam fills closed walls through small ports, no demolition. The answer for Winston-Salem's mill houses; Ardmore bungalows and 1950s-60s brick-veneer ranches. Solid Moravian brick gets an honest no. Ports are patched to match. |
| Crawl Space Spray Foam Insulation | From $2,500 | Closed-cell foam on crawl space walls and rims holds back muggy Piedmont air over damp red clay. Moisture is fixed first and we leave the inspection strip your termite bond calls for. |
| Rim Joist & Band Joist Spray Foam | From $650 | Rim joists over daylight basements and crawl spaces leak conditioned air at every framing gap. So do the cantilevered floors of rooms over garages. Closed cell seals them for good, the small-ticket job with the fastest comfort payback in a Winston-Salem house. |
| Garage Spray Foam Insulation | From $1,200 | Garage ceilings under bonus rooms 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 Carolina metal building from sweating. Shops; barndominiums; pole barns and old tobacco-country ag buildings sealed against condensation from Yadkin Valley vineyards and Davie County farms to Kernersville warehouses. |
| Commercial & New Construction Spray Foam | Free commercial estimate | Warehouses; offices; churches; soundstages and production builders served on schedule. Code-compliant assemblies come with documentation your local inspector will actually accept. Phased work keeps your operation running from the Innovation Quarter to High Point showrooms and Union Cross. |
| Insulation Removal | From $950 | Old blown-in and batts vacuumed out before any new foam goes in, never buried. Squirrel and raccoon contamination comes out with it. 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; rodent-fouled; soaked by a roof leak after tree or storm damage or simply twenty years past its job. |
| Air Sealing | From $650 | Top plates; can lights; chases; knee walls 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 and the cheapest comfort fix in a Winston-Salem house. |
What Affects the Price
- Project Size and Square Footage : Larger projects typically have lower per-unit costs due to efficiency. A small attic will cost more per square foot than a large one, while crawl spaces and rim joists are often quoted as flat rates.
- Foam Type (Closed Cell vs. Open Cell) : Closed cell foam costs more per board foot but offers superior R-value and moisture resistance. Open cell foam is more budget-friendly and works well for interior applications where moisture control is less critical.
- Accessibility and Existing Conditions : Hard-to-reach attics, tight crawl spaces, or areas requiring insulation removal first will affect labor time and final cost. Asbestos-containing materials or extensive air sealing needs may also impact pricing.
- Scope of Work : Simple attic insulation costs less than comprehensive projects combining air sealing, multiple foam types, and structural repairs. Commercial and new construction projects are custom-quoted based on building specifications.
What's included
- Travel included across the Winston-Salem area
- Professional labor & equipment
- Old insulation vacuumed out, bagged & hauled away
- Job site cleanup
- Written estimate before work begins
To get an accurate estimate, call Winston-Salem Spray Foam Insulation at (336) 608-5235 and be ready to describe your project type, approximate square footage, and any existing insulation or damage. Our team will ask about your goals (energy savings, moisture control, soundproofing) to recommend the best foam type and coverage. We provide detailed estimates that break down materials, labor, and any additional services like removal or air sealing.
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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?
Several factors affect cost: project size, foam type selected, site accessibility, whether existing insulation needs removal, local labor rates, and the complexity of air sealing work. A 500 sq ft attic and a 5,000 sq ft attic will have very different total costs, though per-unit pricing may be similar. We assess each project individually to provide fair, accurate pricing.
Do you offer free estimates, and how do I schedule one?
Yes, we provide free estimates for residential and commercial projects. Call us at (336) 608-5235 to schedule a time that works for you. Our team will visit your home or building, evaluate the scope of work, and provide a detailed quote with no obligation.
What does a typical spray foam estimate include?
Our estimates cover material costs, labor, equipment, air sealing, insulation removal (if needed), cleanup, and any additional services. We clearly itemize each component so you understand where your investment goes. Estimates are valid for 30 days, and we're happy to answer questions before you decide.
Can I get pricing for just air sealing without full insulation?
Absolutely. Air sealing alone starts at $650 and is a smart way to reduce drafts and improve comfort in specific areas like rim joists, band joists, or garage entries. Call (336) 608-5235 to discuss which areas would benefit most from air sealing in your home.
Are there any hidden fees or surprise costs?
No. Our estimates are transparent and comprehensive. The price quoted is the price you pay, with no surprise charges. If the scope of work changes during the project, we'll discuss it with you first and provide an updated quote.