West walls take the afternoon sun
Wall Insulation in Weatherford, TX
Walls insulated to the Zone 3 target, sealed at plates and outlets.
- Free on-site estimates in Parker, Hood and west Tarrant counties
- Written quote with foam type, thickness, R-value and price per space
- Roof, ductwork and moisture problems pointed out before we spray
Walls That Hold Up to Afternoon Sun
Wall insulation matters most on the west and south sides of a house, which bake in the afternoon sun from May through September. The Texas code's Zone 3 table, from the 2015 IRC, lists R-20 or R-13 plus R-5 continuous for wood-frame walls in new construction.
New construction and additions
In open stud walls, spray foam fills every gap and seals at plates, outlets and window rough openings. Open-cell foam fills a 2x4 or 2x6 wall at a lower cost per inch; closed-cell gives more R-value per inch. Fixr lists new-construction spray foam at $2.75 to $6.50 per square foot.
Older homes
Older homes in Weatherford's historic neighborhoods, Mineral Wells and Benbrook may have little in the walls. We can dense-pack cellulose through small holes and patch them.
Before we fill
We check for wiring issues and moisture problems from siding or windows before filling closed walls.
Wall Work We Do
Options for open and closed walls.
Open-cell wall foam
Foam in stud bays during construction or remodeling.
Closed-cell wall foam
Higher R-value per inch where space is tight.
Dense-pack cellulose
Closed walls filled through small holes.
Garage walls
Walls between living space and the garage.
Knee walls
Walls next to attic spaces.
Pre-fill checks
Wiring and moisture checked first.
Wall Insulation Costs
| Job | Range and source |
|---|---|
| Spray foam, existing walls | $3.15 to $7.50 per sq ft (Fixr) |
| Spray foam, new construction walls | $2.75 to $6.50 per sq ft (Fixr) |
| Spray foam, all exterior walls | $4,000 to $10,000 (HomeGuide) |
| Blown-in, exterior walls | $1,900 to $7,800, $1.10 to $3.70 per sq ft (HomeGuide); $2,000 to $4,000 (Fixr) |
| Dense-pack cellulose | $1.60 to $4.20 per sq ft (HomeGuide) |
Figures come from Fixr (2025) and HomeGuide (2026 and November 2025). Wall height, access, siding type and the number of bays set the total. The written estimate after we see the house is the price.
How a Wall Job Runs
1. Survey
Wall type, wiring and moisture.
2. Quote
Material and price per wall area.
3. Install
Foam sprayed or cellulose dense-packed.
4. Close up
Holes plugged and patched where needed.
5. Confirm
Spot checks for full coverage.
Wall Insulation Questions
Is spray foam worth it in new walls?
It seals air leaks at plates, outlets and windows as well as insulating, which batts do not.
Can existing walls be insulated?
Yes, with dense-pack through small holes.
Open-cell or closed-cell in walls?
Open-cell is common and cost-effective; closed-cell gives more R-value per inch.
Do walls matter if the attic is done?
Yes, especially west-facing walls in summer.
Wall Insulation Service Areas
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Get a Wall Insulation Estimate
We check your walls and send a written price.