Tankless Water Heater Installation & Repair

A tankless water heater can be a smart fit when your home needs steady hot water without relying on a large storage tank. Full Spectrum Plumbing installs, replaces, repairs, and maintains tankless water heaters with careful attention to sizing, venting, fuel type, water quality, and daily household demand.

Unlike a standard tank system, a tankless unit heats water as it is needed. That makes the setup more compact, but it also means the system has to be matched correctly to your home. A unit that is too small may struggle during back-to-back showers, laundry, or dishwasher use. A unit that is installed without the right gas, electrical, or venting setup can create performance issues from the start.

Our plumbers help you choose the right system, install it properly, and keep it working the way it should.

Plumber in a blue Full Spectrum Plumbing jersey seen from behind, standing beside an outdoor water heater on a beige house exterior.

Tankless Water Heater Installation and Replacement

Switching to tankless is not just a simple equipment swap. The right installation depends on how much hot water your home uses, how many fixtures may run at once, and whether your current plumbing, gas, venting, or electrical setup can support the new unit.

Full Spectrum Plumbing can help with:

  • New tankless water heater installation

  • Replacement of an aging tankless unit

  • Converting from a traditional water heater to a tankless model

  • Gas line checks or upgrades for gas tankless systems

  • Venting and drainage requirements

  • System sizing based on real household use

We do not recommend a tankless system just because it sounds newer. We look at the home first, then explain whether tankless makes sense.

Tankless Water Heater Repair

Tankless systems are efficient, but they are also sensitive to flow rate, mineral buildup, ignition problems, error codes, and improper installation. When something is off, the symptoms can show up as cold bursts, weak hot water, shutdowns, or inconsistent temperatures.

Our plumbers troubleshoot tankless water heater problems carefully before recommending a repair or replacement. Common issues include:

  • No hot water

  • Water that turns hot, then cold

  • Error codes on the unit

  • Ignition or burner problems

  • Mineral buildup inside the heat exchanger

  • Poor flow through the system

  • Venting or drainage issues

  • Undersized equipment for household demand

When the problem is connected to water quality, we may also recommend looking at water filtration or water softeners to help reduce scale and protect the system over time.

Tankless Water Heater Maintenance

Tankless water heaters need routine maintenance to keep them running efficiently. Mineral buildup can restrict flow, strain the heat exchanger, and shorten the life of the unit. This is especially important in homes with hard water.

Tankless maintenance may include flushing the unit, checking filters, inspecting venting, reviewing error history, and confirming that the system is heating consistently. For homeowners who want regular plumbing maintenance handled on a schedule, Full Spectrum’s service agreements are a natural fit.

Is a Tankless Water Heater Right for Your Home?

A tankless water heater may be a good option if you want more consistent hot water, need to free up space, or are replacing an older tank unit. It may not be the best fit if the home would require major upgrades that outweigh the benefit.

We help you weigh the practical details:

  • How many people use hot water daily

  • Whether multiple fixtures often run at once

  • Current water heater age and condition

  • Available gas, electric, and venting capacity

  • Water hardness and maintenance needs

  • Long-term repair versus replacement cost

The goal is not to oversell the system. The goal is to make sure your water heater fits the way your home actually uses hot water.

Why Choose Full Spectrum Plumbing for Tankless Water Heaters

Tankless water heater work requires more than general plumbing knowledge. Proper sizing, venting, flushing, and fuel setup all affect performance. Full Spectrum Plumbing takes the time to check those details before giving a recommendation.

Homeowners choose our team because we explain the options clearly, respect the home during the work, and avoid pushing equipment that is not the right fit. You can also read customer reviews to see how our team handles service calls, repairs, and replacement work.

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Schedule Tankless Water Heater Service

Whether you are replacing an older unit, considering a switch from a tank system, or trying to fix a tankless water heater that is not keeping up, Full Spectrum Plumbing can help.

Schedule tankless water heater service today.

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Testimonials

Hear From Our Satisfied Customers

danny lachimia
5 days ago
My Septic tank was backing up into my toilets, tub, and unfortunately the sinks. I had Carolina Flow Pros come out yesterday morning to pump the tank, and see if that was the issue; however when I went to test flush one of my toilets...nothing happened. Richard from Carolina Flow Pros, is who recommended Full Spectrum Plumbing, and I will be using them from here and out. They came out this morning and identified that the Cast Iron drain pipe going into the Septic did not have much longer before it completely collapsed. They showed me the evidence and made sure that I was completely in the know on everything that they saw. Later, they brought the Excavator out installed a brand new PVC drain line, and showed me exactly what I was dealing with on my Septic System so I can start budgeting. The entire crew was extremely respectful, diligent, and was not afraid to take this job, I highly recommend Full Spectrum!!
BILL Cunningham
5 days ago
Quality work with excellent follow-up and communication. Would definately use them again.
Carolina Guy
1 week ago
Technician was very professional and explained what needed to be done very well. We’re very happy with the service provided.
PATH Ministries
2 weeks ago
We're in the process of doing building maintenance and discovered a plumbing need. Travis came out and quickly ensured we were taken care of and can continue to serve our clients. He provided continued instruction on maintenance and was understanding and flexible during his visit as we were serving clients that day. Great experience.
Wyatt tunall
2 weeks ago
Very responsive and informative.
Dave Baker
3 weeks ago
Had a compactor issue and came right out and replaced. Very professional and know what they are doing.
Shamar Lockett
3 weeks ago
Beandon was exceptional with the repair and installation of my water heater that went out randomly! I would highly recommend full spectrum plumbing.
Ellen Jackson
3 weeks ago
Haskell & Brandon were wonderful and professional
Marriott Loret
3 weeks ago
Haskell was fabulous and so Kind!! Please use them for anything you need!!
Mike White
3 weeks ago
They had Haskell out 30 minutes after I called in. He was professional and knowledgeable and was able to fix the issues. Best experience I’ve had with a plumbing company.
JordanandKobe00
3 weeks ago
Very professional and timely on their appointments.
Mike White
3 weeks ago
They had Haskell out 30 minutes after I called in. He was professional and knowledgeable and was able to fix the issues. Best experience I’ve had with a plumbing company.
Jack Hart
3 weeks ago
Excellent service with timely and tidy removal/installation of my gas Cooktop.
Shad Walton
4 weeks ago
Haskell was great. Fast and reliable plumbing company. Thanks!
Helen Sanders
4 weeks ago
Brandon was awesome I pray that he continues to be the kind pérson professional person in his career. Good customer service.
Douglas Cathcart
4 weeks ago
Travis and Brandon worked hard to get my plumbing situation fixed, despite the summer heat. I appreciate the stick-to-it-ness they gave.
susan crook
4 weeks ago
TJ did an excellent job in servicing the water heater and connecting the washer and dryer.
John McDowell
4 weeks ago
It has really been a pleasure to meet Hostel in his crew they did a wonderful job and I think Spectrum plumbing.
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