Roof Replacement Cost Calculator for Charleston, SC
Answer four quick questions about your Charleston, SC home, and this calculator estimates the size of your roof and a price range for shingles or metal. It runs on published 2026 South Carolina averages, not quotes. When you want a real number, we pass your request to one independent local roofer.
Prefer to talk? Call now(843) 555-0174A Quick Guide
Before you start. The calculator divides your living space by the number of stories to find the footprint. It multiplies that by a pitch factor (1.12 for a walkable roof, 1.30 for a steep one), then adds 10% for overhangs. The resulting roof area is priced with cost rows from our cost guide: "South Carolina 3-tab shingles, per sq ft" up to "South Carolina premium shingles, per sq ft" for shingles, and "South Carolina exposed-fastener metal, per sq ft" up to the top of "South Carolina standing-seam metal, per sq ft" for metal (RoofObservations, 2026).
The tool is built for pitched roofs covered in shingles or metal. Slate, tile, copper and flat roofs need a roofer's own quote, and so does most work in the Old and Historic or Old City District, where the City's preservation policy shapes the materials. Your answers stay in your browser.
Using What You Learned
Keep your range handy and hold any estimate up against it. If a bid lands far below the low end, ask what it leaves out, such as tear-off, decking repairs or the permit. If one sits well above the high end, ask which items push it there; steep pitches and specialty metals are common reasons.
When you're ready for a real figure, send a single request. We pass it to one independent local roofer, who calls to arrange a visit, measures the roof and puts the price in writing. You owe nothing for the referral; any fee for it comes from the roofer's side.
Request an EstimateCall (843) 555-0174
Not sure the roof needs replacing at all? The repair-or-replace quiz helps you sort that out, and the full cost guide explains what drives Lowcountry prices.