Spray Foam Insulation cost: Stockton vs Wilmington (2026)
Stockton runs 8% higher than Wilmington for spray foam insulation — expect around $3,950 in Stockton against $3,650 in Wilmington, a difference of about $300.
Stockton CA
Typically around $3,950
Wilmington NC
Lower costTypically around $3,650
Stockton vs Wilmington: full breakdown
| Factor | Stockton | Wilmington |
|---|---|---|
| Typical 2026 cost | $3,950 | $3,650 |
| Estimated range | $1,550–$6,300 | $1,450–$5,850 |
| Labor index (vs US) | ×1.05 | ×0.98 |
| Climate zone | Mixed | Mixed |
| Climate factor | ×1 | ×1 |
| Local permit | None | None |
| Labor share | $2,150 | $2,000 |
| Materials/equipment | $1,800 | $1,650 |
Localized 2026 planning estimates — not quotes. Each city adjusts the national spray foam insulation range for local labor, climate and permits.
Is the price difference a dealbreaker?
At 8%, this gap is small enough that it's usually swallowed by normal quote-to-quote variation for spray foam insulation — focus on the contractor, not the city.
Spray foam insulation by type: Stockton vs Wilmington
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 | Stockton | Wilmington |
|---|---|---|
| Open-cell | $1,550–$4,700 | $1,450–$4,400 |
| Closed-cell | $2,600–$7,350 | $2,450–$6,850 |
These are 2026 planning figures for spray foam insulation, localized to each city — not formal quotes.
Spray foam insulation by area: Stockton vs Wilmington
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 | Stockton | Wilmington |
|---|---|---|
| 500 sq ft | $950–$2,500 | $900–$2,350 |
| 1,000 sq ft | $1,550–$4,200 | $1,450–$3,900 |
| 1,500 sq ft | $2,300–$5,750 | $2,150–$5,400 |
| 2,000+ sq ft | $2,950–$6,800 | $2,750–$6,350 |
Localized 2026 planning estimates — not quotes. Each city adjusts the national spray foam insulation range for local labor, climate and permits.
Cheapest time for spray foam insulation in either city
Fall is when everyone rushes to insulate before winter hits, making it the busiest and priciest season. Spring and summer see far less demand — and utility rebate budgets are often still full that early in the year.
How much insulation is worth paying for?
Where an insulation budget lands depends less on square footage than on three calls — the R-value you target, whether air-sealing rides along, and which material fills the cavity.
The rebate case
Insulation carries some of the strongest incentive money in remodeling, with utility and state rebates covering a real portion of the cost since the federal 25C credit expired at the end of 2025. Look up what applies on DSIRE, then schedule the work while rebate funds are still unclaimed for the year.
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.
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.
Hit the DOE R-value for your zone, air-seal first, and stack the rebates. Insulation is one of the few upgrades where doing it fully is also the cheapest path to payback.
Stockton vs Wilmington
Is spray foam insulation cheaper in Stockton or Wilmington?
In 2026, spray foam insulation is cheaper in Wilmington at about $3,650, versus $3,950 in Stockton — a difference of about $300 (8%).
Why does spray foam insulation cost more in Stockton than Wilmington?
It comes down to labor: Stockton indexes at 1.05 against Wilmington's 0.98. The mixed-vs-mixed climate difference adds to the gap.
How much is spray foam insulation in Stockton, CA?
Stockton homeowners can expect $1,550 to $6,300 for spray foam insulation in 2026, with $3,950 the typical number.
When is the cheapest time to buy spray foam insulation — and does it differ by city?
It doesn't vary by location — Spring and summer is the discount window in both Stockton and Wilmington (roughly 5–10% off), while the pre-winter fall rush tends to be the most expensive in either city.
Should I choose where to live based on spray foam insulation cost?
Not really — the $300 gap is one-time, and smart timing and tighter quotes in Stockton can shrink it. Factors that compound over time, like energy prices and home condition, deserve more weight than a single upfront difference.
Compare spray foam insulation in other cities
Updated June 2026 · By Serhat Özçelik