Meridian Spray Foam Insulation
Closed-Cell Spray Foam Insulation in Meridian, ID
Closed-cell spray foam insulation contractors in Meridian, ID. High R-value, moisture resistant. Free estimates available.
- 15+ Years local experience
- 500+ Projects completed
- Licensed & Insured
Serving Meridian and nearby communities.
Not every part of a house needs the same foam. Basements, crawlspace walls, rim joists, garage ceilings facing moisture. These call for closed-cell foam specifically, not whatever's cheapest or whatever an installer defaults to everywhere.
Closed-cell foam is denser than open-cell, carries a higher R-value per inch, and resists moisture in a way open-cell simply can't. Meridian Spray Foam Insulation specifies it where that density and vapor resistance actually matter. Basements and crawlspaces most of all, given the moisture swings between Idaho's dry summers and wetter winters.
What's included
What's Included in Closed-Cell Application
- Rim joists — a common air leak point in both new and older Meridian homes, sealed with closed-cell foam for a tight, rigid barrier
- Basement walls — below-grade walls foamed for moisture resistance and insulation in one layer
- Crawlspace walls — paired with encapsulation when the full space needs sealing
- Garage ceilings — where vapor resistance and fire-rated coating requirements call for closed-cell over open-cell
- Optional — reinforcing mesh for applications needing added structural support
- Customer prep — clear the work area so applicators have full access to walls and framing
Want a clearer scope?
Get a Free EstimateHow it works
How We Apply Closed-Cell Foam
Step 1Surface Evaluation
We assess the substrate to ensure compatibility with high-density closed-cell foam application.
Step 2Temperature Control
Equipment is calibrated to maintain optimal spray temperature for proper foam expansion.
Step 3Layered Application
Foam is applied in controlled passes to achieve the desired thickness and density.
Step 4Structural Reinforcement Check
We verify that foam rigidity contributes positively to wall or roof structural performance.
Step 5Moisture Barrier Testing
The cured foam is tested to confirm it provides an effective moisture barrier.
Step 6Quality Inspection
A final inspection ensures uniform coverage and adherence to density specifications.
Materials
Materials and methods for Closed-Cell Spray Foam Insulation
High-Density Closed-Cell Foam
Rigid, strong, and the right pick for below-grade walls facing Idaho's seasonal moisture shifts.
Two-Component Foam System
A chemical blend mixed and sprayed on-site, cured into a dense closed-cell layer.
Reinforcing Mesh
Added in certain wall applications for extra structural support alongside the foam.
Protective Topcoat
Shields cured foam from UV exposure and physical wear in exposed areas like garages.
Thermal Barrier Coating
A fire-code-required coating over exposed foam in occupied spaces.
Moisture-Resistant Primer
Improves adhesion on damp surfaces common in basements and crawlspaces.
Questions on materials?
Get a Free EstimateCost
What does a Closed-Cell Spray Foam Insulation cost in Meridian?
Pricing runs by board foot and scales with square footage and wall complexity. Here's a general range to budget against: These are ballpark ranges, not a fixed quote. A free estimate gets you an exact number for your project.
| Project type | Typical range | What’s included |
|---|---|---|
| Rim joist sealing | $800–$2,000, | covering the perimeter rim joist area in a typical home. |
| Basement wall foam | $2,500–$7,000, | depending on square footage and wall height. |
| Crawlspace wall foam (paired with encapsulation) | $3,000–$8,000, | foam plus vapor barrier work. |
| Garage ceiling or partial wall application | $1,200–$3,500, | depending on coverage area. |
These are typical local ballparks — final cost depends on scope, materials, and site conditions. A free estimate gives you an accurate, itemized number for your home.
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Get a Free EstimateFAQs
Closed-Cell Spray Foam Insulation FAQs
How much closed-cell foam do I need?
It depends on the application. Rim joists typically need a few inches of thickness, while basement walls might call for more depending on your R-value target. We measure and spec it during the visit.
How long does closed-cell foam last before it needs replacing?
Closed-cell foam is a long-lasting insulation system. It doesn't sag, settle, or lose R-value the way batt insulation can over decades, as long as it's applied correctly the first time.
Is closed-cell foam rigid enough to add structural value?
To a degree. Its density adds some rigidity to wall assemblies, though it's not a substitute for structural framing. We'll explain what that means for your specific application.
Why does closed-cell cost more than open-cell per board foot?
It's a denser material with a higher R-value per inch and built-in moisture resistance, which costs more to produce and apply. For the areas where it's specified, that cost buys performance open-cell can't match.
Codes & permits
Permits and codes for Closed-Cell Spray Foam Insulation
Always verify specifics with the City of Meridian or Ada County before scheduling.
| Typically needs a permit | Often no permit |
|---|---|
| New basement wall insulation tied to a finished basement conversion | Rim joist sealing in an existing |
| Fire-rated coating work required over exposed foam in living spaces | unfinished basement or crawlspace |
| — | Spot application on garage ceilings without structural changes |
Need help with permits?
Get a Free EstimateDIY vs pro
DIY vs hiring a pro for Closed-Cell Spray Foam Insulation
| DIY | Hire a pro |
|---|---|
| Small gap filling around a single rim joist bay with a canned foam product | Full basement or crawlspace wall coverage, where consistent density and thickness matter for both insulation and moisture resistance |
| Minor sealant touch-ups on an already-foamed wall | Any job requiring a calibrated two-component spray system, which box kits can't replicate |
Not sure DIY vs pro?
Get a Free EstimateNext step
Get a Closed-Cell Spray Foam Insulation estimate in Meridian
Basement, crawlspace, or rim joist work done right the first time. Call Meridian Spray Foam Insulation at +1 (208) 752-0149 or request a free estimate.
More services
Other Spray Foam Insulation services
Attic Spray Foam Insulation
Attic spray foam insulation for Meridian, ID homes: air sealing, R-value upgrades, ice dam prevention. Free estimates.
Crawlspace Encapsulation And Insulation
Crawlspace spray foam insulation and encapsulation: vapor barrier, foam walls, sealed vents. Free estimates.
Open-Cell Spray Foam Insulation
Open-cell spray foam insulation in Meridian, ID for interior walls and attics. Sound dampening, air sealing. Free estimates.
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