How Much Does it Cost to Replace My Roof?

How Much Does It Cost to Replace My Roof in Charleston, SC?

Replacing a roof is one of the most significant investments you’ll make in your home. In Charleston’s coastal climate, where heat, humidity, salt air, and seasonal storms are constant factors, roof replacement costs can vary widely based on materials, roof design, and installation requirements.

This guide breaks down what impacts roof replacement costs in Charleston and provides realistic pricing ranges for the most common roofing systems. While these numbers offer helpful insight, final pricing is always determined after an on-site evaluation.

Understanding Roof Replacement Costs in Charleston

Roofing prices are typically calculated per square, with one square equal to 100 square feet of roofing surface. Most residential and light commercial roof replacements in the

Charleston area fall into one of the following categories:

• Asphalt shingle roofing

• Metal roofing

• Synthetic slate or shake roofing (such as Brava)

• Commercial flat roofing systems (TPO)

Costs vary based on roof size, slope, complexity, materials, labor, and optional upgrades.

Asphalt Shingle Roof Replacement Costs

Estimated Cost: $400–$700 per square

Asphalt shingles are the most common roofing choice for Charleston homes due to their affordability, versatility, and wide range of styles.

Factors that influence asphalt shingle pricing include:

• Roof slope and pitch – Steeper roofs require additional labor and safety measures

• Number of facets, valleys, and penetrations – Complex rooflines increase installation time

• Flashing replacement – Chimney, wall, skylight, and valley flashing upgrades

• Shingle type and aesthetics – Architectural vs. designer shingles

• Ridge cap systems – Standard ridge caps vs. enhanced ridge ventilation systems

• Ventilation upgrades – Ridge vents, intake vents, or improved airflow design

• Underlayment selection – Synthetic underlayment, peel-and-stick, or high-performance moisture barriers

Shingle roofing remains a reliable option for many Lowcountry homes when properly installed and ventilated.

Metal Roof Replacement Costs

Estimated Cost: $1,000–$1,800 per square

Metal roofing continues to grow in popularity throughout Charleston thanks to its durability, wind resistance, and long lifespan.

Pricing varies depending on:

• Metal gauge – Thicker metal offers increased strength and longevity

• Panel profile – Standing seam vs. exposed fastener systems

• Substrate and decking condition

• Backer rod installation – Used for expansion control and weather sealing

• Trim, flashing, and edge detailing

Metal roofs perform exceptionally well in coastal environments and offer long-term value for homeowners focused on durability and performance.

Brava Synthetic Roof Replacement Costs

Estimated Cost: $2,000–$2,600 per square

Brava synthetic roofing systems replicate the appearance of natural slate, cedar shake, or barrel tile while offering modern performance benefits.

Cost considerations include:

• Premium composite materials

• Architectural detailing and custom color blends

• Advanced fastening and installation methods

• Long lifespan with minimal maintenance

Brava roofing is commonly chosen for luxury homes, historic-style architecture, and homeowners seeking a high-end aesthetic without the maintenance of natural materials.

Commercial TPO Roof Replacement Costs

Estimated Cost: $1,400–$2,000 per square

Thermoplastic Polyolefin (TPO) roofing is frequently used on commercial buildings and low-slope residential structures.

Pricing depends on:

• Roof size and layout

• Insulation thickness and attachment method

• Full tear-off vs. overlay installation

• Drainage design and roof penetrations

• Edge metal, flashing, and termination details

When properly designed and installed, TPO systems provide energy efficiency, flexibility, and long-term protection.

What Impacts the Final Cost of a Roof Replacement?

While material choice plays a large role, final pricing is influenced by several additional factors, including:

• Roof complexity and access

• Structural repairs or decking replacement

• Ventilation improvements

• Code requirements and permitting

• Installation craftsmanship and detailing

A proper inspection allows all of these variables to be evaluated accurately.

Get an Accurate Roof Replacement Estimate in Charleston

The pricing ranges above provide helpful guidance, but every roof is unique. An on-site evaluation is essential to assess structure, ventilation, materials, and installation requirements.

If you’re considering replacing your roof in Charleston or the surrounding areas, a professional inspection will ensure you receive a precise estimate tailored to your home and long-term goals.