Insulation · Myrtle Beach, SC
How much does spray foam insulation cost in Myrtle Beach, SC? (2026)
In Myrtle Beach, spray foam insulation runs $1,500–$5,900, with most paying around $3,700 — about 1% below the national average. Spray foam insulation (open- or closed-cell) for high R-value and air sealing.
Updated June 2026 · Localized estimate, not a quote
Most homeowners pay around $3,700
- Typical cost
- $3,700
- Labor vs US
- −6%
- Climate
- Hot
- Local permit
- None
Refine your estimate
Tune it to your home to narrow the spray foam insulation range.
Key takeaways for Myrtle Beach
- In Myrtle Beach, spray foam insulation runs $1,500–$5,900 — call it $3,700 for a typical job, about 1% below the national average.
- Running −6% against the US average, Myrtle Beach labor is what moves this price off the national figure.
- No separate Insulation permit is usually needed in Myrtle Beach, though local rules can vary — confirm before you start.
- 80 to 100 years is the usual service life, so budget for the next one before it fails.
- Cheapest time to buy: Spring and summer — roughly 5–10% off peak-season pricing.
- Don't price this without checking the rebates section below — federal 25C/25D credits and local utility incentives can bring the net cost down.
What goes into the price in Myrtle Beach
A typical Myrtle Beach spray foam insulation of $3,700 breaks down roughly like this — materials priced near the national level, labor set by local rates.
| Line item | Myrtle Beach 2026 range |
|---|---|
| Materials & equipmentThe unit and materials — largely the same cost no matter which city you're in. | $650 – $2,650 |
| Labor & installationRemoval, install and startup labor — the line most affected by where you live. | $850 – $3,250 |
| Total installed cost | $1,500 – $5,900 |
Split from the Myrtle Beach estimate using a 55% local-labor share; line items sum to the total.
Why spray foam insulation costs what it does in Myrtle Beach
- Labor in Myrtle Beach runs about 6% below the national average (based on price levels for the Myrtle Beach-Conway-North Myrtle Beach metro area), which lowers the installed price.
- The hot climate in Myrtle Beach adds roughly 2% to typical spray foam insulation pricing versus a neutral climate.
Spray Foam Insulation cost by area in Myrtle Beach
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.
| area | Myrtle Beach 2026 range |
|---|---|
| 500 sq ft | $900 – $2,350 |
| 1,000 sq ft | $1,500 – $3,950 |
| 1,500 sq ft | $2,150 – $5,400 |
| 2,000+ sq ft | $2,750 – $6,400 |
National size ranges localized to Myrtle Beach labor and climate.
Spray Foam Insulation cost by type in Myrtle Beach
| Open-cell | $1,500 – $4,450 |
| Closed-cell | $2,450 – $6,950 |
Adjusted to Myrtle Beach from national type-level ranges.
Spray Foam Insulation cost by efficiency in Myrtle Beach
The two spray-foam types differ in R-value and what they do. Open-cell is lighter and cheaper; closed-cell packs the highest R-value per inch and adds an air and moisture barrier, so it costs more.
| Open-cell spray foam≈R-3.5–3.7/inch; cheaper, soft, great soundproofing & air seal | $1,500 – $4,450 |
| Closed-cell spray foam≈R-6–7/inch; rigid, highest R + vapor barrier, structural rigidity | $2,450 – $6,400 |
| Hybrid (closed-cell + batt or blown-in)Foam for the air seal, fill the rest cheaper to hit target R-value | $1,950 – $5,400 |
Labor vs. materials in Myrtle Beach
Install crew, removal, permit & startup — the part Myrtle Beach rates move most.
Equipment & materials — priced closer to the national level.
Split based on a typical $3,700 Myrtle Beach project; your mix varies with scope.
How we estimate it
| National range | $1,500 – $6,000 |
| Myrtle Beach labor adjustment | ×0.97 |
| hot climate factor | ×1.02 |
| Myrtle Beach estimate | $1,500 – $5,900 |
Promo prices vs. the real cost
Insulation marketing leans hard on rebate hype and a low headline number — the real job costs more than the ad implies:
- "Instant rebate" claimsverify against your utility's actual rebate — federal 25C credits ended Dec 2025
- Free energy audit / estimate$0 — it's a sales visit
- Per-sq-ft blown-in teaser$1–$2/sq ft advertised; varies by R-value
Additional spray foam insulation costs to budget for
Treat them as possibilities, not certainties — the ones that reach your quote follow your property's age and setup.
| Blower-door / energy audit | $200 – $700 |
| Remove & dispose of old insulationPer sq ft, before re-foaming a cavity or attic | $1 – $2 |
| Surface prep & masking | $200 – $800 |
| Temporary relocation while it curesMost foams off-gas and need 24 hours of ventilation before reoccupying | $0 – $500 |
| Thermal/ignition barrier (code-required cover)Per sq ft in living spaces and many attics | $0.5 – $1.5 |
Typical national add-on ranges; confirm locally during your quote.
What's included
- Cleanup
- Open- or closed-cell spray foam
- Application and curing
- Surface prep and masking
What affects the cost
- Open-cell vs closed-cell (R-value)
- Area and thickness
- Old insulation removal
- Accessibility of the space
Ways to save on spray foam insulation in Myrtle Beach
- Combine with a home energy audit
- Check energy-efficiency incentives
- Foam the attic and rim joists for the biggest impact
- Open-cell costs less where a vapor barrier isn't critical
How long does spray foam insulation last in Myrtle Beach?
Spray foam is permanent — it does not sag or settle and lasts the life of the home (80+ years) when applied correctly.
No routine maintenance — inspect occasionally for moisture behind it or any pulled-away spots from settling framing.
Signs you need spray foam insulation in Myrtle Beach
- High or rising heating and cooling bills
- Persistent drafts, or rooms that are hard to keep at temperature
- Existing fiberglass or cellulose has settled, gotten wet, or lost R-value
- Cold walls and floors, or condensation on interior surfaces
- Ice dams forming at the roof edge in winter
- You're finishing a basement, rim joist, crawl space, or vaulted ceiling that needs an air seal
- Moisture or mold problems that an air- and vapor-tight barrier would solve
Repair or replace in Myrtle Beach?
Repair if…
- Only a small section pulled away from settling framing — re-foam the gap
- The bulk of the foam is intact, dry, and bonded to the surface
Replace if…
- Existing batts or blown-in are wet, moldy, or pest-damaged
- There's an empty or under-insulated cavity, rim joist, or crawl space to air-seal
- Old insulation has settled away from the air barrier and lost its R-value
- You're chasing persistent drafts and moisture that loose-fill can't fix
Climate-zone spec
How much insulation Myrtle Beach, SC actually needs
Myrtle Beach, SC sits in a hot climate. DOE and ENERGY STAR recommend these insulation R-values (higher R = more resistance to heat flow):
Even in hot climates, DOE recommends R-30 to R-49 in the attic: it keeps conditioned cool air in and radiant roof heat out, lowering cooling bills.
Recommendations from ENERGY STAR / DOE Recommended Insulation R-values. Costadia groups cities into cold / mixed / hot bands — confirm your exact zone with the ENERGY STAR / DOE Recommended Insulation R-values. Source.
Rebates & incentives
Insulation and air-sealing lost their federal tax credit in 2026, but rebates and free-weatherization programs still cut the cost — especially for lower-income households.
- The federal 25C tax credit (which covered up to $1,200/yr of insulation and air-sealing) ended December 31, 2025 under the One Big Beautiful Bill Act — not available for 2026.
- IRA Home Electrification & Appliance Rebates (HEAR): up to $1,600 toward insulation, air-sealing and ventilation for households under 150% of area median income, where the state program has launched.
- IRA HOMES rebates: up to $8,000 for whole-home efficiency retrofits that hit modeled energy-savings targets.
- Weatherization Assistance Program (WAP): free insulation and air-sealing for households at or below 200% of the federal poverty level.
- Many gas and electric utilities offer their own insulation rebates — check the DSIRE database and your provider.
Verified July 2026. Program budgets and windows change fast — confirm current amounts and eligibility with your utility and the DSIRE database. Costadia does not administer these programs.
Rebates & tax credits
The federal 25C credit for insulation and air-sealing materials ended December 31, 2025 and no longer applies in 2026. Spray foam that also air-seals still earns strong utility and state rebates in many areas — check the DSIRE database and your provider — and cuts energy bills right away.
Cheapest time for spray foam insulation in Myrtle Beach
Everyone waits until fall to insulate, which is exactly why fall costs the most. Spring and summer are quieter for installers and often catch a fresh year's rebate budget before it runs dry.
Why spray foam insulation quotes vary — and how to compare them fairly
Two contractors can price the same job thousands apart. Almost always it's the scope each assumed — here's what drives the gap and how to close it.
Why a quote looks high (or low)
- Removal of old/damaged insulation can be a hidden cost.
- Air-sealing may be included or quoted separately.
- R-value target varies — a bid to a lower R-value will look cheaper.
Get an apples-to-apples bid
- Ask whether air-sealing is included or extra.
- Match the target R-value to the DOE recommendation for your zone.
- Confirm removal of old insulation if needed.
- Ask about utility rebates and who handles the paperwork.
Questions to ask Myrtle Beach Insulation pros
You can't judge bids side by side unless they cover the same ground; run through these with every pro on your list.
- 1Did you do (or recommend) a blower-door test to find air leaks first?
- 2What R-value are you targeting, and is it the DOE recommendation for my zone?
- 3Is air-sealing included, or just the insulation material?
- 4Is removal of old/damaged insulation included if needed?
- 5Are there utility or state rebates I qualify for, and do you handle the paperwork?
Spray Foam Insulation in Myrtle Beach
How much does spray foam insulation cost in Myrtle Beach, SC?
Myrtle Beach's going rate for spray foam insulation is $1,500–$5,900 in 2026, with $3,700 the number most homeowners end up paying. Local labor, the hot climate and permit fees are all baked into that number.
Is spray foam insulation more expensive in Myrtle Beach than average?
Myrtle Beach is about 1% lower than the national average, mainly because local labor runs at an index of 0.97 relative to the US average..
Do I need a permit for spray foam insulation in Myrtle Beach?
Need a permit? For Insulation work at this scale in Myrtle Beach, usually not — but your local building department has the final say, so confirm before starting.
What affects spray foam insulation cost the most?
Start with the fundamentals — spray foam insulation (open- or closed-cell) for high R-value and air sealing. The biggest drivers are equipment/material grade, the size and complexity of your home, local labor rates, and your climate zone (hot).
How much insulation is worth paying for?
R-value, air-sealing and material decide both the price and the payback. Our editors on the trade-offs.
The R-value case
The DOE publishes a target R-value for every climate zone, and there's a reason to reach it: stopping short shaves a little off install day but forfeits years of lower energy bills and steadier indoor temperatures. Under-insulating is the one shortcut here that never actually pays.
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 rebate case
Few home projects come with rebate support like insulation does — utility and state programs routinely offset a meaningful slice of the bill (the federal 25C credit closed in December 2025). Run your address through DSIRE first, and book when a program's yearly budget has just refilled.
Air-seal before you insulate, hit the DOE-recommended R-value for your zone, and claim every rebate you're eligible for — insulation is a rare case where doing the full job is also the cheapest one, long-term.
Editorial analysis by Serhat Özçelik, reviewed by Costadia Editorial. These are our own cost perspectives, not third-party endorsements.
How we calculated this estimate
We start with 2026 national spray foam insulation ranges compiled from contractor-pricing sources (Angi, HomeGuide, Fixr and EnergySage averages), then localize them to Myrtle Beach using the BEA Regional Price Parity labor index (×0.97 here), the IECC hot-climate factor (×1.02). Federal incentive details reference the IRS Inflation Reduction Act (25C/25D) and DSIRE.
This is a planning estimate, not a quote. Actual prices vary with your home's condition, equipment grade and contractor — always confirm with licensed local pros before budgeting.
References & data sources
Our Myrtle Beach spray foam insulation estimate is built from these primary, mostly government sources — not a single aggregator.
- Occupational Employment & Wage Statistics (metro wages) — U.S. Bureau of Labor Statistics.Metro-level trade wages behind each city's labor index.
- Regional Price Parities (state & metro) — U.S. Bureau of Economic Analysis.Regional price levels used where metro wage data is unavailable.
- IECC Climate Zones — U.S. DOE — Building Energy Codes Program.Climate-zone factors applied to weather-sensitive projects.
- Home Energy Tax Credits (25C / 25D) — Internal Revenue Service.Federal rebate and tax-credit figures for eligible upgrades.
- Database of State Incentives for Renewables & Efficiency — DSIRE — NC State University.State and utility incentive programs by ZIP code.
Spray foam insulation alternatives in Myrtle Beach
Homeowners in Myrtle Beach often pair this with
A spray foam insulation rarely happens in isolation — these projects commonly come up alongside it.
Other projects in Myrtle Beach
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