Home › Tools › Attic Insulation Cost Calculator — Mount Pleasant SC

Attic Insulation Cost Calculator — Mount Pleasant SC

Attic insulation in Mount Pleasant SC, South Carolina costs close to the national average. Insulation type, attic square footage, and current R-value determine the scope and cost of the project.

Low estimate$1,200
Average$3,600
High estimate$10,000

Attic square footage

Attic square footage 1200

Quality Tier

Standard materials, solid craftsmanship

Scope of Work

Labor

Labor portion of total cost 40%

Attic Insulation Cost in Mount Pleasant SC: 2026 Guide

Use the calculator above to get a quick estimate. The guide below explains what drives attic insulation costs in Mount Pleasant SC and what to expect from contractors in Mount Pleasant SC.

Typical Attic Insulation Costs in Mount Pleasant SC

Project ScopeLowHigh
Small attic (600 sqft, blown-in)$400$800
Average attic (1,200 sqft, blown-in R-38)$1,200$3,000
Large attic (2,000 sqft, blown-in R-49)$3,000$3,600
Spray foam (1,200 sqft, unvented attic)$3,600$10,000

What Affects Attic Insulation Costs in Mount Pleasant SC?

Labor rates: Contractors in Mount Pleasant SC charge $45–$90/hour for attic insulation work — close to the national average.

Material costs: Material prices in the South region are close to national average due to local supply, transportation costs, and market demand.

Project complexity: Site conditions, permitting requirements, and non-standard layouts can add 15–30% to total project cost.

Frequently Asked Questions

How much does attic insulation cost in Mount Pleasant SC?
Attic insulation in Mount Pleasant SC costs $1,200–$10,000. Blown-in fiberglass or cellulose for a 1,200 sqft attic (R-38 to R-49) typically runs $1,200–$3,600. Spray foam insulation costs 3–5x more but provides superior air sealing and is ideal for cathedral ceilings or unvented attics.
What R-value do I need for my attic in Mount Pleasant SC?
The DOE recommends R-38 to R-60 for attics in most of South Carolina. Mount Pleasant SC falls in climate zone South — hotter climates need less, colder climates need more. If you currently have R-11 or less, upgrading to R-49 typically cuts heating/cooling costs by 15–20%.
How much can I save with attic insulation in Mount Pleasant SC?
Proper attic insulation in Mount Pleasant SC can reduce heating and cooling bills by 10–20%. For a home spending $200/month on energy, that's $240–$480/year in savings. Most attic insulation projects pay back in 3–6 years and come with significant utility rebates from South Carolina utilities.
Should I remove old insulation before adding new in Mount Pleasant SC?
If old insulation is damaged, contaminated (pest droppings, mold, vermiculite asbestos), or wet, remove it before adding new. For old fiberglass batts in good condition, blown-in insulation can usually be added on top. Removal adds $1.50–$2.50/sqft to the project cost in Mount Pleasant SC.

Create Pro Estimates in 60 Seconds

Use Cost Estimator app to generate detailed attic insulation estimates — share as PDF directly with clients.

App Store — Free Google Play — Free

Estimated cost in Mount Pleasant SC

$0
Range: $0 – $0
Materials$0
Labor$0
City multiplier1.00x

Want a full itemized estimate? Use the free app:

App StoreiOS — Free Google PlayAndroid — Free