Professional Tankless Water Heater Installation & Service

Enjoy endless hot water and energy savings with Holy City Plumbing's tankless water heater services. We install and maintain on-demand water heating systems throughout Mount Pleasant and Charleston.

Call (843) 817-1388 for tankless water heater service - Endless hot water, maximum efficiency.

Tankless Water Heater Services

Tankless installation - Complete system setup with proper sizing and venting
Tankless maintenance - Annual descaling and component cleaning
Tankless repair service - Fix flow sensors, heat exchangers, and controls
System upgrades - Replace older units with modern high-efficiency models
Gas line modifications - Upgrade gas supply for tankless requirements

Types of Tankless Systems We Install

Gas tankless water heaters - Natural gas and propane on-demand systems
Electric tankless units - Point-of-use and whole-house electric systems
Condensing tankless models - High-efficiency gas units with advanced venting
Non-condensing systems - Standard efficiency tankless water heaters
Point-of-use units - Small tankless heaters for specific applications

Benefits of Tankless Water Heaters

Endless hot water - Never run out during showers or multiple uses
Space-saving design - Compact wall-mounted units free up storage
Energy efficiency - Heat water only when needed, reducing costs
Longer lifespan - Tankless units last twice as long as tank systems
Reduced maintenance - Fewer components and less frequent service needs

We are your Local Lowcountry Plumbers

Experienced Team

Our skilled plumbers bring years of expertise to every job, ensuring quality workmanship and reliable solutions.

Local, Trusted, and Family-Owned

As a locally owned business, we treat every home like our own, providing honest service with care and integrity.

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Need help now? Give us a call!

843-730-3583

Call US NOW

We are fast, reliable, and efficient. Our team is not only highly skilled and knowledgeable but also trustworthy and accommodating. Contact us today — we're ready to provide the expert service you need, right when you need it!

Local, family-owned Lowcountry business

Committed to giving back to local animal charities

Master Plumbers with over a decade of hands-on experience

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Reviews from your neighbors

I wish I had found Holy City sooner! Three different plumbers tried to fix my outdoor drainage system. He troubleshoots each issue thoughtfully and walks me through possible solutions with emphasis on what is best for ME.

Susan Norton

Our Restaurant Group has been using Dave for 10+ years. He is always quick to arrive and fix our problems. He sometimes has to get creative to solve some of the crazy restaurant issues we have below sea level. We couldn't imagine a better plumber for our needs!

Jessica DeZinna

Dave was very professional and helped us with a toilet issue. He was very quick to come to our house and get it taken care of. I will use Holy City Plumbing going forward. Great local business!

Blake Banks

I recommend them highly. David is very professional, diagnosed the source of the leak and corrected the problems quickly. It was a pleasure to work with them!

Sola Kim

Tankless Water Heaters