Trusted by 7776+ Customers

Tankless Water Heater Installation, Repair, and Replacement

Access to instantaneous hot water defines the comfort of a high-functioning South Carolina home. While traditional storage tanks keep 50 gallons of water hot 24 hours a day, a tankless system only activates when you turn on a tap. This shift from batch heating to on-demand flow eliminates the frustration of running out of hot water during back-to-back showers. Preferred Home Services specializes in the total lifecycle of these plumbing units, focusing on precision thermal exchange and maximum energy conservation.

Upgrade your home to a limitless supply of hot water by requesting a professional system consultation today.

Two Preferred Home Services technicians give thumbs up after completing a tankless water heater installation in a residential garage.

Strategic System Installation and Seamless Unit Replacement

Moving from a bulky tank to a wall-mounted on-demand system requires more than just a pipe connection; it requires a calculated understanding of your home’s peak Gallons Per Minute (GPM) demand. Our team handles the entire transition, ensuring your new heating unit is perfectly matched to your family’s actual water usage.

  • Lowering monthly utility overhead occurs when we install high-efficiency units that only consume gas or electricity during active use.
  • Maximizing indoor square footage is a major benefit of replacement, as these compact units free up significant space in closets or garages.
  • Modernizing fuel and venting logistics ensures that your gas lines and exhaust pipes meet current safety standards for high-output burners.
  • Doubling equipment lifespan occurs when we replace 10-year storage tanks with tankless technology designed to last up to 30 years.

Our master plumbers prioritize a clean and professional setup that treats your home’s utility room with the same respect as a finished living space.

Precision Mechanical Repair and Thermal Restoration

A lack of heat or a drop in water volume often indicates a specific mechanical issue within your tankless unit. We approach every repair with a focus on restoring the fire-to-flow ratio, ensuring the internal heating elements engage as needed.

  • Isolating ignition failures to the sensors and spark electrodes can prevent the unit from firing.
  • Neutralizing temperature fluctuations addresses the internal calcification that interferes with the heat exchanger’s performance.
  • Identifying unusual vibration or noise helps prevent mechanical wear from causing a total system lockout.
  • Sealing internal supply leaks protects the sensitive circuit boards and electrical components housed inside the unit.

Every repair visit includes a comprehensive evaluation of your unit’s internal filters and safety bypass valves to ensure reliable operation during your busiest times of the day.

Proactive Descaling and Long-Term Efficiency Maintenance

The primary enemy of an on-demand heater is the mineral content found in the local water supply. Over time, calcium builds up on the heat exchanger, creating a barrier that forces the unit to work harder and run hotter. Our annual maintenance protocols include a high-velocity flush to remove these deposits and preserve your manufacturer’s warranty.

By joining our Preferred Partner Plan, you secure a scheduled defense against efficiency loss. We do not just check the unit; we perform a forensic cleaning of the burner assembly and intake filters to help keep your utility bills as low as possible.

Schedule Service Today!

Why Go Preferred For Full Service Hot Water?

Choosing a team that handles installation, repair, and replacement under one roof provides the accountability you need for such a vital appliance. We have spent over three decades perfecting the science of on-demand heating in South Carolina, ensuring our customers receive expert advice and flat-rate value. When you choose Preferred Home Services, you are choosing a partner dedicated to technical excellence and your family’s daily comfort.

  • Custom GPM calculations overcome the limitations of a small unit by ensuring your heater can handle multiple fixtures simultaneously.
  • Same-day service availability means you never have to wait through a cold weekend for a professional repair or replacement.
  • Flexible payment options make it easier to invest in high-efficiency technology that pays for itself over time.
  • A 100 percent satisfaction guarantee backstops every task we perform, from a simple sensor cleaning to a full-scale system upgrade.

Investing in a specialized hot water team ensures your home maintains a steady and high efficiency thermal supply for decades.

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Traditional & Tankless Water Heaters

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Frequently Asked qUESTIONS

Expert Answers To Common Questions

TESTIMONIALS

Hear From Our Satisfied Customers

Craig Lyons
2 days ago
Today I met Mr. Scott Hawkins he came by to help me with my AC and in 5 mins I gained a friend and a brother he was so nice and friendly I felt like I knew him for years we need more people in this world like Mr Scott and he fixed my AC but the best part of him coming out was our conversation and mr Scott just know you have a friend in me and thank you so much for being so courteous and friendly!👊🏿💯
Shawna Bennett
2 days ago
Stevan was awesome. I appreciate the consideration for my pets. My ac condenser is from 1986 so probably older than Stevan, but it didn’t deter his ability to problem solve and get us up and running again. Another company booked me a appt, then said they were overbooked and cancelled my appt the next day when I declined talking to the manager about financing a new unit and after waiting until 9pm and requesting an update on if a tech would still make it out.When I am able to replace the unit Stevan has convinced me Preferred is the company to go with.
Archie Fortenberry
2 days ago
Chan, the technician, was great. He was very professional and knowledgeable of his work. We would be proud to have him again for other projects we might need
vinny lippiello
2 days ago
What am amazing job Mr.Matt has done. Full of knowledge and explained the process of changing out water heater. It was done pretty quickly. He was super friendly and explained how to keep the maintenance of our water heater up to par. Would definitely recommend Matt for again. Went far and beyond because he saved me money on my lawn mower as well...😁😁😁
Ed Moise
2 days ago
What matters most when air conditioning stops working in July is getting somebody to deal with it fast. I phoned Friday about 7:00 PM, and on Saturday a tech fixed my ancient HVAC system well enough so I could get by until they could install a complete new HVAC system. That was a miracle. The new system was working on Wednesday afternoon.
Mrunal Thakkar
3 days ago
Good experience good job
Archie Fortenberry
3 days ago
Chris Crawford did a great job with the instillation of
the new water heater. He was very professional in his attitude and work. He cleaned up after himself and left our garage better than he found it. He is a great asset to your company. We would be happy to have him back at any time we have another need.
Archie and Anne Fortenberry
Spencer Schulz
3 days ago
I recently had the pleasure of working with Garrett for an HVAC issue, and I can’t recommend him highly enough! From start to finish, Garrett was professional, knowledgeable, and efficient. He quickly diagnosed the problem with our system and explained everything in clear, understandable terms.

Garrett arrived on time and came fully prepared with all the necessary tools and parts. He worked diligently to ensure our system was up and running smoothly, and he even took the time to offer maintenance tips to prevent future issues. His attention to detail and dedication to customer satisfaction truly set him apart.

If you’re in need of a reliable HVAC technician, Garrett is definitely the person to call. Exceptional service and a great experience all around!

Updated Review November 2025:
I had my first semi annual check in. Will and Nick with the HVAC team were incredibly helpful, kind, and we just had a great experience with the team. Also, Victor with plumbing was also so positive and knowledgeable. Hailey and Lauren scheduling were amazing too. So pleased with this company and service

Updated review July 2026:
Had plumbing issues on Friday night. Was able to schedule after 8 PM for early on Saturday. Technician, Will Smith, was incredibly professional and fixed the problem so quickly I’m so thankful for this company and all of the staff members. Can’t say enough good things about this company and their field force
Victor Willis
3 days ago
Technican was absolutely awesome he was there for 5 hours troubleshooting and had the ac running when he left. He was very nice and kept us informed every step of the way. Preferred honored the warranty and I realized why I chose them to put my system in 1 year ago. I highly recommend them and if Alex Coronel happens to be your technician you will be in good hands.
Cason Hund
3 days ago
Lucas and Marlon were kind respectful and efficient. Thanks again guys!
Archie Fortenberry
4 days ago
Chris Crawford did a great job with the instillation of
the new water heater. He was very professional in his attitude and work. He cleaned up after himself and left our garage better than he found it. He is a great asset to your company. We would be happy to have him back at any time we have another need.
Archie and Anne Fortenberry
Patricia Simpers
4 days ago
Excellent service provided by technician Sam Watson. He was professional, knowledgeable, patient and friendly. He's a great representative for Preferred. We have always had good communication and a quick response time from Preferred.
Cody Dietershagen
4 days ago
Ola is Very knowledgeable and professional. You can tell he knows what he’s doing! Much class.
Robert Crowder
4 days ago
Matt Sanders did an excellent job from start to finish including removal and installation of a kitchen faucet and water heater, switching from a tank to tankless. Very good experience and his attention to detail is fantastic.
Sherri Berni
4 days ago
Ryne is a true professional! Great job.
Eddie Hudgens
4 days ago
Courteous prompt expert service. I would recommend them to anyone.
Pat Horne
4 days ago
Your service person, Andrew O’Neal, did a professional job and paid attention to detail.
Jessica Salerno
4 days ago
We had two pipes burst in a matter of two weeks and Mike L. came out immediately both times to save the day. He was truly a knight in shining armor and took great care of us during two really stressful moments. He was super knowledgeable, professional, and a pleasure to work with. He got us on the schedule immediately for a full home repipe. Ben’s squad showed up a day later and got to work! Chris H., Bryan T., Garrett D., Porter B., Mac C., and Travis S. were absolute rockstars. They worked together like a well oiled machine. They were professional, meticulous, neat, polite, friendly, and perfectionists. You want these guys working on your house. We’ve had a lot of contractors do work for us over the years and these guys are by far the best we’ve ever seen across all trades. Part of our project required some drywall to be cut out, and when they left, there was not a speck of drywall dust in sight. In fact, I think they might have left my house cleaner than when they arrived. We thought it was going to be a multi-day job, but they pushed through and got the project done in one day. We were floored! Preferred Home Services has a loyal customer for life. They took all the stress out of the process. Hire these guys. You won’t regret it.

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