Lewisville's newer two-story homes sit on wooded lots with big attics and vented crawl spaces, and the humid Piedmont summers mean those attics run 130 to 150 degrees while your air conditioning fights to keep the rooms below cool. Winston-Salem Spray Foam Insulation has been sealing and insulating homes across Lewisville (27023) and the surrounding area since 2012, and we know exactly why your cooling bill climbs in July and why a finished room over the garage never reaches temperature.
Whether you're dealing with an attic that bakes above your bedrooms, a damp crawl space under red clay soil, or rim joists that leak air and cold, our team delivers a written estimate with R-value and thickness specifications so you know exactly what you're paying for and what the code requires at your address.
Spray Foam Insulation in Lewisville (27023)
Lewisville's building stock runs mostly 1980s and newer two-stories with vaulted ceilings and the finished rooms over the garage (FROGs) that sit in uncontrolled attic space. Your attic is not a dead zone: it's where your air handler and ductwork live, where heat and humidity build all summer, and where poorly sealed rim joists and band joists let conditioned air escape before it reaches the rooms you're trying to cool. Crawl spaces under these homes sit on brick piers over red clay, and in our humid climate that means moisture rises from the ground, condenses on cold ductwork, and soaks into fiberglass batts that were never meant to handle it.
Spray foam insulation solves both problems. Closed cell foam stops air movement and sheds moisture; open cell foam breathes and works where moisture is not the primary driver. We seal the rim and band joists where the house meets the foundation, air seal the attic floor where ductwork enters, and spray crawl spaces so moisture and unconditioned outside air stay out. Our team has served Lewisville homeowners and the Winston-Salem area for over a decade, and we know the building codes, the moisture challenges, and the access constraints of your neighborhood.
Our services in Lewisville
- Attic Spray Foam Insulation in Lewisville · Open-cell foam on the roof deck turns a 150°F Winston-Salem attic into…
- Closed Cell Spray Foam Insulation in Lewisville · Two-pound closed-cell foam delivers R-6.5 per inch with its own vapor retarder…
- Open Cell Spray Foam Insulation in Lewisville · Half-pound open-cell foam air-seals attics and walls at a friendlier price per…
- Wall & Injection Foam Insulation in Lewisville · Injection foam fills closed walls through small ports, no demolition.
- Crawl Space Spray Foam Insulation in Lewisville · Closed-cell foam on crawl space walls and rims holds back muggy Piedmont air…
- Rim Joist & Band Joist Spray Foam in Lewisville · Rim joists over daylight basements and crawl spaces leak conditioned air at…
- Garage Spray Foam Insulation in Lewisville · Garage ceilings under bonus rooms are foam-sealed against radiant afternoon…
- Metal Building & Barndominium Spray Foam in Lewisville · Closed-cell foam is the insulation that stops a Carolina metal building from…
- Commercial & New Construction Spray Foam in Lewisville · Warehouses; offices; churches; soundstages and production builders served on…
- Insulation Removal in Lewisville · Old blown-in and batts vacuumed out before any new foam goes in, never buried.
- Insulation Replacement & Re-Insulation in Lewisville · The full reset: old material removed; gaps air-sealed…
- Air Sealing in Lewisville · Top plates; can lights; chases; knee walls and attic hatches leak more cooled…
How a Job Works in Lewisville
We start with a free on-site assessment. We walk your attic and crawl space, measure the square footage, identify what insulation is already there and whether it's wet or compromised, and note the ductwork routing and any air sealing opportunities. We ask about your comfort complaints (a room that won't cool, condensation on windows, or a musty smell) so we understand what the foam has to fix. Then we write a detailed estimate with R-value, thickness, and the square footage or board footage we'll spray, so you know the scope and the cost before we touch anything.
On job day, we set up mechanical ventilation in the space being sprayed, apply foam at the correct thickness and ratio, and control the cure so the smell stays contained and does not drift into your living spaces. We respect the re-entry window: twenty-four to forty-eight hours before you move back into that space, depending on conditions. If we're removing old insulation first (wet batts, contaminated fill, or insulation that's settled), we haul it out and dispose of it properly, then clean the substrate before we spray. We leave your property clean and your attic or crawl space ready for the long haul.
Attic spray foam in Lewisville typically runs from $1.50 per square foot for open cell to $1.20 per board foot for closed cell, depending on R-value and thickness. A typical 1,200-square-foot attic with open cell foam at 5 to 6 inches (R-19 to R-23) falls in the $1,800 to $2,400 range; closed cell at 3 to 4 inches (R-18 to R-24) runs $2,500 to $3,500. Wall injection foam for a closed cavity runs from $2 per square foot; crawl space spray foam starts at $2,500 and scales with the square footage and whether old insulation has to come out first. Rim and band joist sealing starts at $650, and if you're removing and replacing existing insulation, budget from $2,800 depending on what has to come out. The real cost drivers are the area to cover, the R-value and thickness the code requires at your address, whether the substrate is wet or contaminated (moisture has to be fixed before we spray), and how tight the access is. Call us at (336) 608-5235 for a free estimate tailored to your home and your comfort goals.
✅ Written Estimates with R-Value & Thickness Specs, fully insured for work in Lewisville and nearby areas.
