Air sealing and insulation in one step
Spray Foam Insulation in Arlington, TX
Matched to each surface, with thickness and R-value on the quote.
- Free on-site estimates
- Written quote with foam type, thickness and R-value for each area
- Attic, ducts and roof deck checked before anything is sprayed
What Spray Foam Insulation Does in a Texas House
Spray foam insulation is a two-part liquid that expands as it is sprayed, fills the cavity and cures in place. In Arlington homes its biggest job is stopping air movement: hot attic air pushing into the living space and cooled air leaking out through gaps at lights, fans, chases and top plates. Fiberglass and cellulose slow heat, but air passes through them. Foam blocks that airflow while it insulates.
Open-cell foam
Open-cell foam is light and soft, around R-3.5 to R-3.7 per inch according to HomeGuide. It swells to fill irregular framing, which makes it the usual pick for the underside of a roof deck when an attic is being sealed, and for interior walls where sound control matters. It lets some water vapor pass, so it is paired with the right details in humid spaces.
Closed-cell foam
Closed-cell foam is dense and hard, about R-5 to R-7 per inch. It adds R-value in thin spaces, resists water and stiffens the surface it is sprayed on. That suits metal buildings, exterior walls that are open during a remodel, and areas near moisture. It costs more per board foot.
How to tell you need it
Upstairs rooms that stay hot after the air conditioner runs all afternoon, a bonus room over the garage that never feels right, dust lines on carpet at the base of walls, a thermostat fight between floors, or summer bills that climb every year are common signs. A visit tells you which of those come from air leaks and which from thin insulation.
We look at the attic, the walls we can reach and the garage, then quote each area separately. Get a free estimate
What This Covers
Where foam goes in Arlington homes.
Roof deck (sealed attic)
Open-cell foam on the underside of the roof deck and gable walls, bringing the attic and its ducts inside the insulated shell.
Open walls during remodels
Closed-cell or open-cell foam in stud bays while the drywall is off.
Bonus rooms and garage ceilings
Foam in the floor over the garage and in kneewalls and slopes, sealing out garage air and heat.
Air sealing details
Foam at top plates, chases, plumbing and wiring holes before other insulation goes in.
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 minimum | $1,000 to $2,000+ (HomeGuide) |
National ranges from HomeGuide's 2026 guide and Fixr's 2025 guide. Foam type, thickness, access and how much prep a space needs push a job up or down, and small jobs often hit a minimum. We price your house after measuring it, and the written estimate is what you pay.
From Visit to Finished Foam
1. Inspect
Check the attic, ducts, roof deck, walls and garage; note leaks, moisture and old insulation.
2. Quote
Write each area with foam type, thickness, R-value and price.
3. Prep
Cover floors and belongings, mask fixtures and set up ventilation.
4. Spray
Apply foam in passes to the quoted thickness and spot-check depth.
5. Clear and review
Ventilate, clean up and walk you through what was done.
Why Choose Us for Spray Foam Insulation
Two foams, one plan
Open-cell where it fits, closed-cell where it earns its price.
Spray Foam Insulation Questions
Is spray foam worth it in Arlington?
It pays best where air leaks are the main problem: sealed attics with ducts, bonus rooms, and walls open during a remodel. On an open attic floor, sealing plus blown-in often gives similar comfort for less.
How thick does open-cell foam go on a roof deck?
It depends on the R-value target and the rafters. Open-cell runs about R-3.5 to R-3.7 per inch, so the quote states the thickness and resulting R-value for your roof.
Will spray foam hide roof leaks?
It can make them harder to see, which is why we check the deck for stains or soft spots before spraying and point out anything that needs a roofer first.
Can you spray foam in finished walls?
Standard spray foam needs open cavities. For closed walls, dense-pack blown-in through small holes is the usual approach.
Spray Foam Insulation Service Areas
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Get a Spray Foam Insulation Estimate
Get a written spray foam quote for your Arlington home.