⚡ Plumbing · Charleston, SC

How Much Does It Cost to Install a Tankless Water Heater in Charleston, SC?

Local pricing for the Charleston-North Charleston metro area · Updated April 2026

Low End
$1,500
Basic install
Average Cost
$3,210
Most homeowners pay this
High End
$5,520
Complex install
$1,440
Labor (45%)
$1,770
Materials (55%)
1–2
Days to complete

What Affects Your Price?

The cost to install a tankless water heater in Charleston ranges from $1,500 to $5,520, with most homeowners paying around $3,210. Your actual cost depends on several factors specific to your home and the Charleston-North Charleston market.

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Gas Vs Electric
Flow Rate (Gpm)
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Venting Requirements
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Gas Line Upgrade
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Number Of Units

The South generally offers lower labor costs, though fast-growing metro areas are seeing rates climb. Year-round building seasons mean more consistent pricing and availability.

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Permit Required in Charleston

Budget $51–$255 for permits and inspections. Your contractor typically handles the permit process, but confirm this upfront.

Local Climate Considerations

Standard materials work well without extreme weather considerations. Focus budget on quality fixtures and efficient systems rather than climate-specific protections.

Can You DIY?

🚫 Not a DIY Project

This project requires a licensed professional in Charleston. Attempting tankless water heater installation without proper licensing can void insurance and create serious safety hazards.

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Frequently Asked Questions

How much does it cost to install a tankless water heater in Charleston, SC?

The average cost is $3,210, with most homeowners paying between $1,500 and $5,520 depending on project complexity.

Is a permit required for tankless water heater installation in Charleston?

Yes, a permit is typically required. Check with your local building department for specifics.

How long does tankless water heater installation take in Charleston?

Most projects take 1–2 days to complete.

Related Costs in Charleston

Install a Tankless Water Heater in Nearby Cities

Install a Tankless Water Heater in Columbia, SC — $2,960 Install a Tankless Water Heater in Greenville, SC — $3,010
Last updated: April 06, 2026 · Cost data based on local labor rates and market conditions in the Charleston-North Charleston metropolitan area.