Pick the foam for the surface
Spray Foam Insulation in Fayetteville, AR
Foam that air seals and insulates in one step, used where it pays.
- Free on-site estimates
- Written quotes listing thickness and R-value by area
- Moisture and ventilation checked before we seal
What Makes Spray Foam Different
Spray foam insulation sprays on as a liquid and expands to fill the cavity, sealing air leaks and insulating at once. Batts and loose fill slow heat but let air pass. In Northwest Arkansas, where humid summer air pushes into attics, walls and crawl spaces, that seal matters as much as the R-value.
Closed-cell foam
Closed-cell foam is dense and rigid, about R-5 to R-7 per inch according to HomeGuide, and at enough thickness it slows water vapor. It is our usual choice for crawl space walls, rim joists, metal buildings and barndominium walls. HomeGuide lists it at $3.00 to $5.00 per square foot installed.
Open-cell foam
Open-cell foam is soft and expands a great deal, about R-3.5 to R-3.7 per inch. It fills rafters and stud bays well and costs about $1.50 to $3.50 per square foot. It is common on roof decks over attics with ductwork and in above-grade walls. The Department of Energy advises against open-cell foam below ground.
Where foam fits in NWA homes
- Attics with ducts and air handlers. Foam on the roof deck keeps equipment in cooler air.
- Bonus rooms and kneewalls. Foam fills slopes and kneewalls that batts never fit well.
- Crawl space walls and rim joists. Closed-cell foam, paired with a sealed ground cover.
- Metal shops and barndominiums. Closed-cell foam on steel stops condensation.
- New construction and additions. Open or closed cell in open stud bays.
What we check before spraying
We look for roof leaks, plumbing leaks, mold and wet framing first, because foam can hide them. We also talk about ventilation: a much tighter house may need bath fans vented outdoors and a check of any gas appliances. If you plan to sell, we explain how foam on the roofline can affect a future home inspection. Get a free estimate
What This Covers
Where we use spray foam.
Roof deck foam
Open-cell or closed-cell foam under the roof to create a conditioned attic.
Bonus rooms
Foam in kneewalls, slopes and floors over garages.
Crawl space walls
Closed-cell foam on foundation walls with a sealed liner.
Rim joists
Closed-cell foam sealing the band joist and sill.
Steel buildings
Closed-cell foam on metal walls and roofs.
Open walls
Foam in stud bays during remodels and new builds.
Published Spray Foam Insulation Costs
| Job | Range and source |
|---|---|
| Spray foam, installed | $1.50 to $5.00 per sq ft (HomeGuide) |
| Open-cell / closed-cell | $1.50 to $3.50 / $3.00 to $5.00 per sq ft (HomeGuide) |
| About 1,000 sq ft | $1,500 to $5,000 (HomeGuide); $3,150 to $7,500 in an existing home (Fixr) |
| Existing walls / new construction | $3.15 to $7.50 / $2.75 to $6.50 per sq ft (Fixr) |
| All exterior walls | $4,000 to $10,000 (HomeGuide) |
| Whole house | $8,000 to $20,000 (HomeGuide); $10,000 to $30,000 (Fixr) |
| Typical job minimum | $1,000 to $2,000+ (HomeGuide) |
National figures from HomeGuide (2026) and Fixr (2025); they are not a local price list. Foam type, thickness, access and prep change the total, and small jobs often hit a minimum. The figure on your written estimate, given after we measure, is what you pay.
How It Works
1. Walk-through
We inspect, measure and check for leaks, moisture and wiring issues.
2. Written quote
Foam type, thickness, R-value and price for each area, with alternatives if useful.
3. Prep
Floors, belongings and equipment covered; work area masked and ventilated.
4. Spray
Foam goes on in the passes the maker specifies, checked for thickness.
5. Cure and review
The space airs out for the re-entry time, then we clean up and walk you through it.
Spray Foam Insulation Questions
Is spray foam worth it in Arkansas?
Where air leakage and hot attics are the problem, often yes. On a simple attic floor, sealing plus blown-in usually gives similar comfort for less money. We quote what fits your house.
Can spray foam go over existing insulation?
Not usually. Foam has to bond to wood, steel or concrete. Old batts in the way come out first.
Does foam cause moisture problems?
Not when it is installed correctly over dry surfaces with ventilation planned. Problems come from foam covering leaks or wet wood, which is why we check first.
How long does spray foam last?
Installed correctly and kept dry, it stays in place for the life of the framing it is attached to.
Spray Foam Insulation Service Areas
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Get a Spray Foam Insulation Estimate
Tell us which spaces you want foamed and we will price them in writing.