Get matched with top tankless water heater installers in your area
Enter your zip and get matched with up to 3 pros
Matching on HomeAdvisor
Tankless water heater installers in Johns Island
You can depend on us to provide a high quality service at a fair and honest price. We understand that the future of our business depends upon our reputation and that is why customer service is by far our highest priority. If you are looking for a professional you can trust, please call today to schedule a no-obligation estimate!
".NA"
Jagan K on August 2023
You can depend on us to provide a high quality service at a fair and honest price. We understand that the future of our business depends upon our reputation and that is why customer service is by far our highest priority. If you are looking for a professional you can trust, please call today to schedule a no-obligation estimate!
".NA"
Jagan K on August 2023
Purpose Plumbing is your premier plumbing company in the Charleston area. We provide numerous services within the plumbing industry. If you are looking for friendly, competitively priced, hardworking individuals, look no further. We will be with you every step of the way, from the initial call to the completion of your project. Your satisfaction is our guarantee. We look forward to coming to your location and handling all of your residential or commercial plumbing needs. Onsite estimates are $49. If we perform any work, we waive the estimate cost totally.
"They seemed to do a good job"
Mark A on September 2024
Purpose Plumbing is your premier plumbing company in the Charleston area. We provide numerous services within the plumbing industry. If you are looking for friendly, competitively priced, hardworking individuals, look no further. We will be with you every step of the way, from the initial call to the completion of your project. Your satisfaction is our guarantee. We look forward to coming to your location and handling all of your residential or commercial plumbing needs. Onsite estimates are $49. If we perform any work, we waive the estimate cost totally.
"They seemed to do a good job"
Mark A on September 2024
Rudd Plumbing, Heating & Air is Charleston and the Lowcountry’s trusted choice for reliable home service solutions. Specializing in plumbing and HVAC, our team delivers expert repairs, replacements, and maintenance with a focus on lasting quality and exceptional customer care. Locally owned and operated, we keep homes running smoothly with honest service done right—the first time.
Rudd Plumbing, Heating & Air is Charleston and the Lowcountry’s trusted choice for reliable home service solutions. Specializing in plumbing and HVAC, our team delivers expert repairs, replacements, and maintenance with a focus on lasting quality and exceptional customer care. Locally owned and operated, we keep homes running smoothly with honest service done right—the first time.
We take great pride in our experience, expertise, quality, and customer service that we provide to meet the consumers needs. It is our mission to provide excellent workmanship and complete customer satisfaction from start to completion of a project. In order to understand the needs and expectations of our customers, we take great care to work and communicate with every customer in a professional manner. Our reputation is based on service, safety, and quality, regardless of how large or small the job.
"Preferred Home Services performed an excellent job. Easy to make arrangements; they showed up promptly and on time; work was done very professionally. The only issue was that their charge was at least twice I am used to paying for that type of service. No parts and technician required 2 hours to complete and the charge was $1,000. Very high for this location!"
Alton C on May 2025
We take great pride in our experience, expertise, quality, and customer service that we provide to meet the consumers needs. It is our mission to provide excellent workmanship and complete customer satisfaction from start to completion of a project. In order to understand the needs and expectations of our customers, we take great care to work and communicate with every customer in a professional manner. Our reputation is based on service, safety, and quality, regardless of how large or small the job.
"Preferred Home Services performed an excellent job. Easy to make arrangements; they showed up promptly and on time; work was done very professionally. The only issue was that their charge was at least twice I am used to paying for that type of service. No parts and technician required 2 hours to complete and the charge was $1,000. Very high for this location!"
Alton C on May 2025
At Simply Plumbing and Gas, we are committed to providing exceptional plumbing and gas services to homes and businesses in the greater Charleston area. With years of experience and a dedication to quality workmanship, our team of skilled technicians delivers fast, reliable solutions for all your plumbing and gas needs. Whether you need a quick repair, a new installation, or preventative maintenance, were here to ensure your systems are working safely and efficiently.
"Prompt and professional! Would highly recommend !"
Stephen M on April 2025
At Simply Plumbing and Gas, we are committed to providing exceptional plumbing and gas services to homes and businesses in the greater Charleston area. With years of experience and a dedication to quality workmanship, our team of skilled technicians delivers fast, reliable solutions for all your plumbing and gas needs. Whether you need a quick repair, a new installation, or preventative maintenance, were here to ensure your systems are working safely and efficiently.
"Prompt and professional! Would highly recommend !"
Stephen M on April 2025
2nd Generational Plumbing We take great pride in our experience, expertise, quality, and customer service that we provide to meet the consumers needs. It is our mission to provide excellent workmanship and complete customer satisfaction from start to completion of a project. In order to understand the needs and expectations of our customers, we take great care to work and communicate with every customer in a professional manner. Our reputation is based on service, safety, and quality, regardless of how large or small the job. Please feel free to contact us today.
"Provident Plumbing promptly answered my call and we arranged an appointment. He immediately figured out the issue from my description on the phone. Payton arrived spot on time after calling me to give me a heads-up call that he was on his way. Faulty part was replaced within 15 min at a cost $75 less than other quotes. Payton is polite, careful to wear booties to not dirty carpets, and knowledgeable. I will definitely be calling him again for my future plumbing needs. Thank you Provident Plumbing!"
Patricia H on May 2025
2nd Generational Plumbing We take great pride in our experience, expertise, quality, and customer service that we provide to meet the consumers needs. It is our mission to provide excellent workmanship and complete customer satisfaction from start to completion of a project. In order to understand the needs and expectations of our customers, we take great care to work and communicate with every customer in a professional manner. Our reputation is based on service, safety, and quality, regardless of how large or small the job. Please feel free to contact us today.
"Provident Plumbing promptly answered my call and we arranged an appointment. He immediately figured out the issue from my description on the phone. Payton arrived spot on time after calling me to give me a heads-up call that he was on his way. Faulty part was replaced within 15 min at a cost $75 less than other quotes. Payton is polite, careful to wear booties to not dirty carpets, and knowledgeable. I will definitely be calling him again for my future plumbing needs. Thank you Provident Plumbing!"
Patricia H on May 2025
Trust Pro Plumbing for expert plumbing services that you can rely on. Our licensed plumbers are equipped with the knowledge and experience to tackle any plumbing issue, from minor repairs to complex installations. With a focus on prompt service and customer satisfaction, we deliver efficient solutions that restore comfort and functionality to your home while adhering to the highest standards of quality and safety.
"Quick response time, amazing customer service and cost was reasonable. Thanks guys!"
Adriana K on July 2024
Trust Pro Plumbing for expert plumbing services that you can rely on. Our licensed plumbers are equipped with the knowledge and experience to tackle any plumbing issue, from minor repairs to complex installations. With a focus on prompt service and customer satisfaction, we deliver efficient solutions that restore comfort and functionality to your home while adhering to the highest standards of quality and safety.
"Quick response time, amazing customer service and cost was reasonable. Thanks guys!"
Adriana K on July 2024
Complete home remodeling company with on site direct employees. Business owner is also on the job site working his trade. Subcontractors used are under out direct supervision and carry all necessary license and insurance.
"Tim just finished our kitchen in downtown Charleston and it turned out amazing. It was a tricky job with sloped floors, old walls but Tim was patient and completed the work well. He and his crew were incredibly easy to be around and were very tidy at the end of each day. Highly recommend!"
Laura W on March 2021
Complete home remodeling company with on site direct employees. Business owner is also on the job site working his trade. Subcontractors used are under out direct supervision and carry all necessary license and insurance.
"Tim just finished our kitchen in downtown Charleston and it turned out amazing. It was a tricky job with sloped floors, old walls but Tim was patient and completed the work well. He and his crew were incredibly easy to be around and were very tidy at the end of each day. Highly recommend!"
Laura W on March 2021
Purpose Plumbing is your premier plumbing company in the Charleston area. We provide numerous services within the plumbing industry. If you are looking for friendly, competitively priced, hardworking individuals, look no further. We will be with you every step of the way, from the initial call to the completion of your project. Your satisfaction is our guarantee. We look forward to coming to your location and handling all of your residential or commercial plumbing needs. Call us directly at (843) 998-7465
"Trades person came to the house, gave a quote, I declined the amount: (install 3 toilets) when he was leaving, he asked if i have something saying its $49 when they come out. If that was mentioned, I wouldn't have responded. The next day, I was texted an invoice for$49, which I will not be paying. They KNOW if they mention $49, people won't use them. They should be reprimanded, i find it scammish."
Diane R on August 2024
Purpose Plumbing is your premier plumbing company in the Charleston area. We provide numerous services within the plumbing industry. If you are looking for friendly, competitively priced, hardworking individuals, look no further. We will be with you every step of the way, from the initial call to the completion of your project. Your satisfaction is our guarantee. We look forward to coming to your location and handling all of your residential or commercial plumbing needs. Call us directly at (843) 998-7465
"Trades person came to the house, gave a quote, I declined the amount: (install 3 toilets) when he was leaving, he asked if i have something saying its $49 when they come out. If that was mentioned, I wouldn't have responded. The next day, I was texted an invoice for$49, which I will not be paying. They KNOW if they mention $49, people won't use them. They should be reprimanded, i find it scammish."
Diane R on August 2024
We specialize in custom cabinets, carpentry services, wood working, trim work, crown-molding, and more! We guarantee your satisfaction, and we won’t leave until the job is done right. We pride ourselves on the quality work we provide, while delivering great customer service! Check out all the services we offer below and call -or- click to schedule a free estimate today!
"Wonderful! His craftsmanship is superb. He makes sure things get done the correct way and takes pride in everything he does. He’s a family man that gives honest feedback & pricing. He is the only contractor I trust."
Anne P on March 2024
We specialize in custom cabinets, carpentry services, wood working, trim work, crown-molding, and more! We guarantee your satisfaction, and we won’t leave until the job is done right. We pride ourselves on the quality work we provide, while delivering great customer service! Check out all the services we offer below and call -or- click to schedule a free estimate today!
"Wonderful! His craftsmanship is superb. He makes sure things get done the correct way and takes pride in everything he does. He’s a family man that gives honest feedback & pricing. He is the only contractor I trust."
Anne P on March 2024
FAQs for tankless water heater installation projects in Johns Island, SC
Yes, although they have a higher upfront cost compared to traditional units, tankless water heaters can be worth the investment for many homeowners. They heat water on demand, eliminating standby energy losses and leading to 24% to 34% greater energy efficiency for homes using up to 41 gallons of hot water daily. Tankless units last longer—around 20 years with proper maintenance—and require less space than traditional units. They also reduce the risk of leaks and water damage since there's no tank to corrode and fail.
Tankless water heaters, including gas-powered models, do require electricity to operate components like the ignition and control systems. This means they won't function during a power outage. If you live in an area prone to outages and want to ensure a continuous hot water supply, consider installing a battery backup system or generator to keep your tankless water heater running when the power goes out.
You should set your tankless water heater to 120 degrees Fahrenheit for optimal safety and efficiency, as recommended by the U.S. Consumer Product Safety Commission. Setting the temperature at 120 degrees prevents scalding accidents, particularly for children and the elderly, and reduces energy consumption. Temperatures above 140 degrees increase the risk of burns and promote mineral buildup, which can decrease the system's efficiency.
A 20-minute shower uses 50 to 60 gallons of water, assuming a flow rate of 2.5 to 3 gallons per minute. A typical whole-house tankless water heater can produce 4 to 8 gallons of hot water per minute, providing continuous hot water for long showers. By installing low-flow showerheads and reducing shower time, you decrease water consumption and energy costs, maximizing the efficiency of your tankless system.
With proper maintenance, a tankless water heater lasts around 20 years, significantly longer than conventional tank water heaters, which last between 8 and 12 years. Regular inspections and timely repairs can further extend its lifespan. To keep your tankless system operating efficiently, have it inspected or serviced annually and address any minor issues promptly by contacting a local tankless water heater repair service.
- Plumbing - Multiple Projects
- Shower Pan Install
- Plumbing for a Remodel or Addition - Install
- Plumbing Item Repair
- Water Heater - Repair or Service
- Sink Repair
- Steam Shower - Install
- Faucet Install or Replace
- Walk In Tub - Install or Replace
- Drain Repair
- Shower Install or Replace
- Pipe Repair
- Drain Line Breakage - Camera Locate
- Water Main - Install, Replace or Repair
- Sump Pump - Repair or Replace
- Drain Clog or Blockage - Clear
- Sewer Main - Clear
- Faucets, Fixtures and Pipes - Repair or Replace
- Plumbing Item Installation
- Sink Installation
- Pipe Installation
- Faucet Installation
- Toilet Install or Repair
- Whirlpool Bathtub Install or Replace
- Plumbing Multi-Item Installation
- Water Heater - Install or Replace
- Sewer Main - Install, Replace or Repair
- Drain Installation
- Plumbing Multi-item Repair
- Toilet Installation
- Bathtub Install or Replace
- Sump Pump or Interior Foundation Drains - Install
- Birmingham
- Phoenix
- Tucson
- Fresno
- Long Beach
- Los Angeles
- Modesto
- Sacramento
- San Diego
- San Francisco
- San Jose
- Denver
- Hartford
- Washington DC
- Fort Lauderdale
- Jacksonville
- Miami
- Orlando
- Tampa
- Atlanta
- Chicago
- Indianapolis
- Louisville
- New Orleans
- Baltimore
- Boston
- Detroit
- Grand Rapids
- Minneapolis
- Saint Paul
- Kansas City
- Saint Louis
- Las Vegas
- Albany
- New York
- Asheville
- Charlotte
- Greensboro
- Raleigh
- Winston Salem
- Cincinnati
- Cleveland
- Columbus
- Oklahoma City
- Portland
- Harrisburg
- Philadelphia
- Pittsburgh
- Providence
- Memphis
- Nashville
- Austin
- Dallas
- El Paso
- Fort Worth
- Houston
- San Antonio
- Salt Lake City
- Norfolk
- Richmond
- Virginia Beach
- Seattle
- Madison
- Milwaukee
Get our Angi-powered app
