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Charleston’s Rinnai Tankless Water Heater Installation & Repair Pros

Endless Rinnai Performance Starts Today

Reliable hot water, unmatched energy efficiency, and a sleek, space-saving design—Rinnai tankless water heaters deliver it all. Whether you're upgrading an old tank or starting fresh, trust ClimateMakers to install or repair your Rinnai system the right way.

Rinnai-certified installation & service

Space-saving, high-performance units

Lower utility bills & energy usage

Upfront pricing with no surprises

Our 3-Step
Rinnai Tankless Water Heater Process

Fast, professional, and built around your home’s needs.


📍 Proudly serving Charleston, North Charleston, Summerville & surrounding towns.

Step 1:
In-Home Visit & System Evaluation

We inspect your current system and hot water usage to recommend the right-sized Rinnai model.

Step 2:
Upfront Quote &
Custom Options

No pressure. Just honest advice, clear pricing, and expert guidance.

Step 3:
Expert Installation
or Repair

Installed to code, registered with Rinnai, and backed by our quality guarantee.

Insider Tip:


Not all tankless water heaters are created equal. Rinnai is a top-tier brand known for dependability, smart engineering, and extended lifespan. If you're looking for a long-term upgrade, Rinnai is worth the investment.

Rinnai Tankless Water Heater Services in the Lowcountry

From installations to emergency repairs, we handle every aspect of your Rinnai system—quickly and efficiently.

Not sure what service you need?

Call (843) 552-9024 or Request a Free Rinnai Estimate

Trusted, Affordable, and Fast!

Locally Endorsed by the Dave Ramsey Show
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Hear It From Our Customers

Homeowners across Charleston, Summerville, and North Charleston trust us to keep the hot water flowing—fast, clean, and worry-free.

Michael B.

I have had a service contract with ClimateMakers for a couple of years now covering my tankless water heater, my traditional HVAC unit and my mini-split system. 

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Reach out using this form —we respond quickly and keep it simple. No hard sell, just real help.

Thanks for contacting us. Someone will be following up soon!

Ready to Schedule Service or Request a Quote?

Proudly Serving Charleston’s Lowcountry Neighborhoods

Charleston, SC

From Ansonborough to Byrnes Downs, we install Rinnai tankless systems in historic homes with efficient upgrades and expert repair service.

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North Charleston, SC

Homeowners near Mixson and Oak Terrace Preserve choose us for rapid Rinnai tankless installation, conversion, and dependable emergency service.

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Mount Pleasant, SC

Whether you're in Seaside Farms or Carolina Park, we provide clean Rinnai tankless installs with low disruption and long-term energy savings. 

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Summerville, SC

Summerville homeowners from White Gables to South Pointe rely on us for fast Rinnai tankless water heater installs and trusted local support. 

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Johns Island

Serving homes from Maybank Village to Edenvale Farms with Rinnai tankless water heater installs designed for year-round efficiency and savings. 

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James Island

From Clearview to Seaside Plantation, we install and service Rinnai tankless systems—offering quick turnarounds and reliable water heater repairs.

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 Not sure if we serve your area?

Call (843) 552-9024 or [Book Online Now] to check availability.

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Thinking About Going Tankless in Charleston?

We install and service Rinnai systems every day—fast, clean, and done right the first time.

  • Do I Need To Replace My AC System?
    You need an AC system that keeps your home cool all summer long. If you have noticed diminished air flow, hot or cold spots in your home, the need for frequent repairs, or other trouble signs, it may be time to consider replacing your AC system.
  • Benefits of Installing a New AC System?
    New AC systems are more energy efficient and you could save big on energy bills. Installing a new AC system can improve indoor air quality, increase your home's environmental efficiency, and keep your home comfortable for years to come.
  • Do I Need to Schedule Regular AC Maintenance?
    Over time, regular wear and tear will diminish the efficiency of your system. Scheduling regular maintenance services can ensure the longevity of your system. In addition, our technicians can catch potential issues before they become more severe.

Address

JTS Business Group, LLC

ClimateMakers Heating ● AC ● Plumbing
4765 Franchise St 
North Charleston, SC 29418
(843) 552-9024

Mechanical Contractor State License #M108899

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Thumbtack Member
BBB Accredited Business badge in black and white, symbolizing ClimateMakers' commitment to quality and trustworthiness.
Locally Endorsed by the Dave Ramsey Show
Logos of professional certifications and affiliations for ClimateMakers, including ACCA, NATE, U.S. Department of Energy, and
Proud Supporting Sponsor
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Ronald McDonald House Charleston
Lowcountry Foodbank Annual Food Drive Host

Hours

Sunday
Monday
Tuesday
Wednesday
Thursday
Friday
Saturday

8 AM - 2 PM
8 AM - 4:30 PM
8 AM - 4:30 PM
8 AM - 4:30 PM
8 AM - 4:30 PM
8 AM - 4:30 PM
8 AM - 2 PM

Weekends By Appointment
Emergencies 24/7/365

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