Spray Foam Insulation cost: Apex vs Raleigh (2026)
There's essentially no price gap here: spray foam insulation runs close to $3,750 in both Apex and Raleigh in 2026.
Apex NC
Typically around $3,750
Raleigh NC
Typically around $3,750
Apex vs Raleigh: full breakdown
| Factor | Apex | Raleigh |
|---|---|---|
| Typical 2026 cost | $3,750 | $3,750 |
| Estimated range | $1,500–$5,950 | $1,500–$5,950 |
| Labor index (vs US) | ×0.99 | ×0.99 |
| Climate zone | Mixed | Mixed |
| Climate factor | ×1 | ×1 |
| Local permit | None | None |
| Labor share | $2,050 | $2,050 |
| Materials/equipment | $1,700 | $1,700 |
All figures are 2026 localized planning estimates for spray foam insulation — get an actual quote before you commit.
A wash — choose on quality, not city
With no real price gap on spray foam insulation, the choice comes down to contractor quality and timing, not which city you're in.
Spray foam insulation by type: Apex vs Raleigh
Below, each spray foam insulation option is priced independently for both cities, with identical local labor, climate and permit logic applied — so the comparison holds up.
| Type | Apex | Raleigh |
|---|---|---|
| Open-cell | $1,500–$4,450 | $1,500–$4,450 |
| Closed-cell | $2,450–$6,900 | $2,450–$6,900 |
All figures are 2026 localized planning estimates for spray foam insulation — get an actual quote before you commit.
Spray foam insulation by area: Apex vs Raleigh
Spray foam is priced by board foot (1 sq ft at 1 inch thick), which works out to about $1.50–$5 per sq ft of surface installed depending on foam type and thickness. Closed-cell costs more but adds twice the R-value per inch.
| Size | Apex | Raleigh |
|---|---|---|
| 500 sq ft | $900–$2,350 | $900–$2,350 |
| 1,000 sq ft | $1,500–$3,950 | $1,500–$3,950 |
| 1,500 sq ft | $2,200–$5,450 | $2,200–$5,450 |
| 2,000+ sq ft | $2,750–$6,450 | $2,750–$6,450 |
All figures are 2026 localized planning estimates for spray foam insulation — get an actual quote before you commit.
Cheapest time for spray foam insulation in either city
The fall insulation rush drives prices up because everyone's thinking about the coming winter at once. Book in spring or summer instead, when demand is lower and rebate funds haven't been claimed yet.
How much insulation is worth paying for?
Three choices shape an insulation budget — target R-value, whether air-sealing is included, and material type. Our editors weigh how each affects payback.
The R-value case
Insulate to the DOE recommendation for your climate zone — under-insulating to save money leaves comfort and energy savings on the table that would have paid the job back.
The rebate case
Insulation has some of the best rebate math in home improvement — utility and state programs can cover a solid share (the federal 25C credits ended Dec 2025). Check DSIRE before you book and time it to a fresh rebate budget.
The air-sealing case
Skip air-sealing and you're insulating around the very holes letting conditioned air leak out. Caulk, foam and weatherstripping are inexpensive and often return more felt comfort than a thicker blanket of insulation ever would — insist the crew handles the leaks before they bury them.
Payback is the whole point with insulation, and it arrives fastest when the job is done in full: air-sealing, the DOE-recommended R-value for your climate zone, and whatever utility rebates you qualify for. Trimming any one of those trims the return, not the cost.
Apex vs Raleigh
Is spray foam insulation cheaper in Apex or Raleigh?
spray foam insulation costs about the same in both — roughly $3,750 in each city.
Why does spray foam insulation cost more in Raleigh than Apex?
The main driver is local labor rates: Raleigh's labor index is 0.99 versus 0.99 in Apex. Climate zone (mixed vs mixed) also shift the total.
How much is spray foam insulation in Apex, NC?
Apex homeowners can expect $1,500 to $5,950 for spray foam insulation in 2026, with $3,750 the typical number.
When is the cheapest time to buy spray foam insulation — and does it differ by city?
The best window is the same in both Apex and Raleigh: Spring and summer, when demand drops and installers discount to keep crews busy — typically 5–10% off peak pricing. The most expensive time anywhere is an emergency replacement during the pre-winter fall rush.
Should I choose where to live based on spray foam insulation cost?
No — the cost is essentially identical between Apex and Raleigh. Base the decision on the things that actually vary: contractor reputation, scope, equipment tier and timing.
Compare spray foam insulation in other cities
Updated June 2026 · By Serhat Özçelik