How much does spray foam insulation cost in North Idaho?
There is no single price. Spray foam is quoted on the wall and roof area being sprayed, the foam type, how thick it goes on and how easy the space is to reach. Floor size alone can't price it. Empire doesn't publish a price list. Nick quotes every job himself, and estimates are free.
Price follows the surface you spray, not the floor plan
A quote starts with the wall and roof area being sprayed. Buildings with the same footprint can price very differently. A tall pole barn with a steep roof has far more surface than a low garage, and a crawl space is mostly short walls and rim joists. That's why we don't post a price per building size: a number based on the floor plan alone doesn't tell you much.
On a shop or barn, the biggest scope decision is walls only or walls and roof. Adding the roof adds area, and in a pole barn or metal building, foam on the roof deck is usually the only good way to insulate it. Settle the scope first, so every number you compare covers the same building.
Foam type and thickness set the material
Closed-cell is our main offering, in 2-lb and HFO closed-cell. It runs roughly R-6 to R-7 per inch, against roughly R-3.5 to R-3.8 for open-cell, so you get more insulation in less depth. Open-cell can be provided for a specific project. Those are general ranges; the actual R-value and thickness come from the product's documentation.
Rule of thumb: thickness should follow what the building has to do. Two inches is Nick's usual minimum. Most heated shops around here get 2 inches on the walls and 3 on the roof, a budget-friendly choice; cold storage typically gets 4 on the walls and 6 on the roof. More inches means more material and more time on the rig.
Access, prep and coverings round out the number
Access changes the time on site. Open framing is the easiest case. High ceilings, tight crawl spaces and a liner or finished wall in the way all add work. If old insulation has to come out first, that's a separate job, because Empire doesn't remove insulation.
In a space people will use, codes generally require a thermal barrier over the foam, such as 1/2-inch gypsum drywall. Empire doesn't install drywall; it's a separate trade. Budget for it, and ask whether each estimate includes it or leaves it to you or another trade.
How to compare quotes
Compare estimates only when they cover the same surfaces at the same thickness with the same foam. Then ask what's included: prep, removal of existing insulation and any required covering. A lower number often means less foam, not a better deal.
With Empire, the person who quotes your job is the person who sprays it. Nick gives a rough estimate from what you send and a firm quote once he has seen the job; simple pole barns can often be quoted without a visit. Then he sprays it with one consistent crew member, so there's no handoff between the estimate and spray day.
Related questions
Why doesn't Empire publish prices?
Because buildings with the same footprint can need very different amounts of foam, so a posted price would be wrong for most jobs. Nick gives a rough estimate from what you send and a firm quote once he has seen the job. Estimates are free.
Is a price per square foot a fair way to compare bids?
Only if every bid states the same coverage, foam type and installed thickness. Without those, a per-square-foot figure hides the differences. Ask which surfaces are included, how thick the foam goes on each one, and whether prep and coverings are part of the number.
When is spray foam not worth the cost?
If you plan to sell in the next year or two, you probably won't get your money back: spray foam usually pays for itself in 3 to 10 years, depending on the job. Foam always costs more than fiberglass, except in pole barns and barndominiums, where fiberglass would need a drop ceiling and a vented roof. When budget is the issue, a hybrid, part foam and part fiberglass, can cut the cost.
Do veterans and service members get a discount?
Yes. Empire offers a discount for veterans and service members. The amount depends on the job, so mention your service when you ask for the estimate.
What should I send to get an estimate?
Call, text or use the form with your town, what the building is and how you use it, its rough size and what you want insulated. Photos of the framing help, and so does a note about any existing insulation. Estimates are free.
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Services
- Closed-Cell Spray FoamMore insulation per inch than open-cell foam, with greater resistance to water vapor. Useful where cavity depth is limited or moisture control matters.
- Shop & Garage InsulationReduce heat loss and drafts in a shop or garage you plan to heat. Foam type and coverage depend on the building and how you use it.
- Pole Barn InsulationInsulate pole barn walls and roofs to reduce heat loss and help manage condensation. The plan should account for ventilation and how the space will be used.
- Crawl Space InsulationSeal air leaks at crawl space walls and rim joists to help with drafts and cold floors. Drainage and ground moisture need their own plan.
- Attic InsulationReduce heat loss through the top of your home. Roof-deck and attic-floor insulation are different approaches; the right choice depends on ventilation and moisture control.
- New Construction InsulationInsulate accessible walls and roof cavities before finishes go in. Plan the foam type, thickness and installation stage with your builder.
- Commercial InsulationInsulation for workspaces, warehouses and other commercial buildings. Plan access, ventilation and time out of the work area before installation.
- Metal Building InsulationClosed-cell foam can help manage condensation on metal panels and reduce heat loss. Surface condition, ventilation and building use guide the installation plan.
- Retrofit InsulationAdding spray foam to existing homes and buildings during remodels, re-roofs or when walls and ceilings are open.
Not sure which fits? Request your free estimate
Request your free estimate
Request an estimate online. Nick handles your estimate himself.
What happens next
Request your free estimate
Request an estimate online. Nick handles your estimate himself.