Durham's 1920s bungalows, mill houses and brick ranches sit on red-clay crawl spaces under attics that hit 150 degrees in summer, and the humidity that comes with the Piedmont climate means moisture is always working against your insulation. Whether you own a Craftsman home in Trinity Park, a ranch in Hope Valley or a newer two-story in Chapel Hill, your walls, attic and crawl space are losing conditioned air and letting heat and humidity in the way your home was built a hundred years ago.
When cooling and heating bills climb, when a room over the garage won't hold temperature, or when you find damp insulation or condensation in your attic or crawl space, Durham Spray Foam Insulation is the local crew that knows this building stock and this climate. We've been working in Durham and the surrounding area since 2012, and we spray foam the way these homes need it done.
Spray Foam Insulation in Durham (27701)
Durham's housing runs from 1900s foursquares and lap-sided mill houses built on brick piers to 1960s brick ranches with collapsed attic insulation to 1980s and newer two-stories with vaulted ceilings and finished rooms over garages that never cool. Every one of them sits in a humid subtropical climate where the attic temperature climbs past 130 degrees through a long summer, where crawl spaces under brick foundations trap moisture in red clay, and where closed walls over empty cavities leak air and let humidity migrate into the frame.
Spray foam stops that. Closed-cell foam seals rim joists, band joists and crawl space rim boards against moisture and air infiltration. Open-cell foam in attics and walls absorbs sound and lets the structure breathe. Injection foam fills the empty cavities in old frame walls without tearing them apart. Air sealing around ductwork, electrical penetrations and rim joists stops the leaks that make your HVAC work twice as hard.
Our team is fully insured and knows the specific challenges of Durham's housing: tight crawl spaces under raised brick piers, air handlers and ductwork routed through 150-degree attics, old walls with no insulation at all, and the moisture pressure that comes from the climate. We write every estimate with R-value and thickness specs so you know exactly what you're paying for.
Our services in Durham
- Attic Spray Foam Insulation in Durham · Open-cell foam on the roof deck turns a 150°F Durham attic into conditioned…
- Closed Cell Spray Foam Insulation in Durham · Two-pound closed-cell foam delivers R-6.5 per inch with its own vapor retarder…
- Open Cell Spray Foam Insulation in Durham · Half-pound open-cell foam air-seals attics and walls at a friendlier price per…
- Wall & Injection Foam Insulation in Durham · Injection foam fills closed walls through small drilled ports, no demolition.
- Crawl Space Spray Foam Insulation in Durham · Closed-cell foam on crawl space walls and rims holds back humid air over Durham…
- Rim Joist & Band Joist Spray Foam in Durham · Rim joists over daylight basements and crawl spaces leak conditioned air at…
- Garage Spray Foam Insulation in Durham · Garage ceilings under bonus rooms are foam-sealed against radiant afternoon…
- Metal Building & Barndominium Spray Foam in Durham · Closed-cell foam is the insulation that stops a Carolina metal building from…
- Commercial & New Construction Spray Foam in Durham · Warehouses; offices; churches; soundstages and production builders served on…
- Insulation Removal in Durham · Old blown-in and batts vacuumed out before any new foam goes in, never buried.
- Insulation Replacement & Re-Insulation in Durham · The full reset: old material removed; gaps air-sealed…
- Air Sealing in Durham · Top plates; can lights; chases; knee walls and attic hatches leak more cooled…
How a Job Works in Durham
We start with a free on-site assessment. We walk your attic, crawl space or walls with you, measure the area to be sprayed, look at what's there now, and talk through open-cell versus closed-cell foam and what thickness and R-value make sense for your space and your budget. If there's old, wet or contaminated insulation in the way, we price that removal upfront so there are no surprises. We give you a written estimate with R-value and thickness specs before we commit to a date.
On the day of the work, our crew sets up mechanical ventilation in the space being sprayed. Spray foam releases VOCs as it cures, and proper ventilation during application and cure is non-negotiable. We spray to the thickness and ratio specified in your estimate, and we protect any areas that shouldn't be foamed. Once the foam sets, we clean up our rig and walk through the finished work with you. You'll see the thermal barrier and any ignition barrier we've installed per code, and we'll give you a re-entry window of twenty-four to forty-eight hours before the space is back in use.
Attic spray foam in Durham typically runs from $1.50 per square foot for open-cell to $1.20 per board foot for closed-cell, depending on the thickness and R-value your attic needs. Crawl space foam starts around $2,500 for a typical Durham crawl space, but the final price depends on the square footage, whether the space is vented or closed, and whether old insulation has to come out first. Wall injection foam for old frame houses runs from $2 per square foot. Rim joist and band joist sealing starts at $650. Insulation removal runs from $950, and if you're replacing old insulation with foam, figure from $2,800. Air sealing a home's penetrations and leaks starts at $650. The real cost drivers are the area you're treating, the R-value and thickness you need, whether you're using open or closed cell, and what has to be removed or fixed before we spray. Call us at (984) 254-5400 for a free estimate and a firm price for your home.
✅ Written Estimates with R-Value & Thickness Specs, fully insured for work in Durham and nearby areas.
