North Texas plumbing / Water heating

Tankless Water Heater Repair & Installation in North Texas

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Tankless Water Heaters in North Texas

Honest Choice Plumbing is a professional plumbing company that services and installs tankless water heaters. If you suspect an issue with your existing tankless water heater or you’re considering tankless water heater installation to replace an older, traditional unit, we’re happy to help. Best of all, we’re available 24/7, so you’ll always reach someone after hours.

Contact the team at Honest Choice Plumbing to schedule tankless water heater installation or repair services today!

Reliable Tankless Water Heaters Services

At Honest Choice Plumbing, our technicians are experts when it comes to installing and repairing tankless water heaters. If your tankless water heater isn’t functioning as it should, you may notice signs such as a sudden drop in water pressure or cold running water when you turn on the faucet. Another telltale sign of a malfunctioning tankless water heater is unusual behavior from your home’s other hot water appliances, such as the dishwasher or washing machine.

Some common issues that can cause your water heater to suddenly stop working include sediment build-up in the hot water lines and inside of the unit, ignition failures and flame failures. Whatever the underlying problem may be, you can count on our professional technicians to accurately assess the situation and perform all necessary repairs to ensure your water heater runs smoothly again.

Here are some more signs that can indicate a potential issue with your tankless hot water heater:

  • Discolored or gritty water
  • Unusual sounds during the water heating process
  • Complete lack of hot water
  • Tap water has an unusual odor

In the event that your tankless hot water heater needs replacing, or if you’re considering swapping out your traditional hot water heater for a tankless model, we can help. We install both electric and gas-powered tankless water heaters. With proper maintenance, gas and electric tankless water heater systems can last as long as 25 years, and they require less maintenance than traditional tank water heaters.

Common Tankless Water Heater Problems and Solutions

Here are some common problems and the solutions we provide:

  • Sudden Drop in Water Pressure: This could indicate sediment build-up in the hot water lines. Our technicians will flush the lines and clear the sediment to restore normal water flow.
  • Cold Water Instead of Hot: Ignition or flame failure may be causing this issue. We’ll assess and repair the ignition system to get your heater functioning again.
  • Discolored or Gritty Water: This is often caused by sediment in the heater. We’ll flush the system and clean the water lines to fix this problem.
  • Unusual Sounds During Heating: Strange noises can indicate internal issues like sediment buildup. We’ll inspect and service your heater to eliminate the noise.
  • No Hot Water: A complete lack of hot water may signal a more significant malfunction, like a failed heating element. We’ll troubleshoot and repair or replace components as needed.
  • Odd Odors from Tap Water: This can result from bacteria or other contaminants in the water heater. We’ll clean and sanitize the system to restore clean water flow.

Is a Tankless Water Heater Right for Your Home?

Thinking about making the switch to a tankless water heater? While these systems offer plenty of benefits, choosing the right one depends on your household's hot water needs, plumbing setup, and budget. Factors like the number of bathrooms, how often you use hot water, and whether you have gas or electric connections can all play a role in finding the best fit for your home.

At Honest Choice Plumbing, we help North Texas homeowners make informed decisions about their hot water systems. Our experienced plumbers will evaluate your needs, explain your options, and help you choose a tankless water heater that delivers reliable performance without unnecessary expenses. Whether you're upgrading from a traditional tank or replacing an older tankless unit, we'll make sure your new system is properly sized and professionally installed for years of dependable hot water.

Frequently asked questions

Have questions? We're here to help. Explore the frequently asked questions below to learn more about our services, what to expect when you schedule an appointment, and how Honest Choice Plumbing can help keep your home safe, comfortable, and running smoothly.

Do I need a plumber to install a tankless water heater in Dallas?

In Texas, anyone paid to install a tankless water heater must be a licensed plumber or work under one, though homeowners may do plumbing on their own homestead. The City of Dallas still requires a homeowner to get a permit and a city sign-off when the building code calls for one, and other North Texas cities set their own rules. A tankless install usually involves gas piping, venting and sizing the unit to your home's demand, which is why most homeowners hire a licensed plumber for it.

How often should a tankless water heater be flushed?

Most tankless water heaters should be flushed about once a year, which is the main part of tankless water heater maintenance. Flushing, also called descaling, runs a cleaning solution through the heat exchanger, the part that heats water as it passes through, to dissolve mineral scale. Many North Texas cities have moderately hard water. Scale makes the heater work harder and can cause error codes or swings in water temperature, so check your owner's manual for your model's schedule.

Is it worth replacing a tank water heater with a tankless one?

Replacing a tank water heater with a tankless one is worth it for many households, especially ones that run out of hot water. A tankless unit heats water only when a tap is open, so nothing sits in a tank losing heat, and it often lasts 20 years or more compared with about 10 to 15 for a tank. The downsides are a higher upfront cost and, in some homes, a larger gas line or new venting. Honest Choice Plumbing can tell you whether the switch makes sense or a new tank water heater fits better.

Should I get a gas or electric tankless water heater?

A gas tankless water heater is usually the better choice for a whole house that already has gas service, and an electric unit makes more sense for a single bathroom or a home without gas. A gas unit sized for the house can run two or more showers at once, but it needs the right size gas line and proper venting. Electric whole-house models draw a lot of power and may need an electrical panel upgrade, so the right pick depends on your home's existing gas and electrical service. We install both types.

What affects the cost of tankless water heater installation?

Tankless water heater installation costs vary with what your home needs to support the new unit. The biggest factors are the size of the unit, whether the gas line has to be upsized, new venting, electrical work for electric models, and where the heater will hang. Moving from a tank in the garage to a tankless unit on the same wall costs less than relocating it. Honest Choice Plumbing gives you the price before work starts, and financing is available on approved credit.

Your Local Tankless Hot Water Heater Specialists

The team at Honest Choice Plumbing is ready to assist with any of your tankless water heater needs- give us a call today!

Your next step

Book same-day tankless water heater service

Tell us what is happening and where you need help. We’ll discuss the visit, availability, and next steps.

Diagnostic Service Call: $49 weekdays 8am–5pm; $89 after hours and Saturday; $237 Sunday. Visits are appointment-based. Repair work is priced separately for your approval.

Ask about today

Same-day water-heater repair and replacement available

Availability depends on the heater, diagnosis, equipment, access, and schedule.

See the same-day guide

Same-Day Tankless Water Heater Service

Tankless water-heater service and installation

Find the cause of unreliable hot water

Cold showers, temperature swings, reduced hot-water flow and unfamiliar noises deserve diagnosis—not an automatic replacement recommendation. Tell us whether the problem affects every hot-water fixture or just one. Discolored, gritty or unusual-smelling water can have causes outside the heater, so those symptoms alone do not identify a failed unit.

We review the equipment's condition and symptoms before explaining repair options. Mineral buildup, flow restrictions or a heating fault may be involved. The useful question is whether a targeted repair can restore dependable performance or whether recurring failures and repair costs make replacement the better investment.

Size for simultaneous use, not tank gallons

Tankless capacity is about gallons per minute at the temperature rise your property needs. A shower running alongside laundry or a dishwasher creates a different demand than one faucet. Colder incoming water requires more heating, so a headline flow rating alone is not enough to select a unit.

On-demand heating avoids the standby heat losses of a storage tank and can free up space, but it does not mean unlimited simultaneous hot water or instant delivery at distant faucets. We compare your usage and conversion cost with keeping a tank system so the recommendation fits your household, not just a product label.

Your next step

Need help with same-day tankless water heater service?

Book Online or call to describe the problem and arrange a visit with a licensed master plumber.

Diagnostic Service Call: $49 weekdays 8am–5pm; $89 after hours and Saturday; $237 Sunday. Visits are appointment-based. Repair work is priced separately for your approval.

Plan the replacement or tank-to-tankless conversion

Replacing an existing tankless unit and converting from a storage heater can involve different work. We review the proposed location, access, water connections, available fuel and manufacturer requirements. Gas equipment also needs an appropriate fuel supply and venting arrangement; an electric model must fit the property's available electrical capacity.

The estimate identifies the plumbing work and any separate trade coordination needed. Applicable permits, venting, condensate drainage where relevant, access changes and old-equipment removal are reviewed as part of the scope. Confirming these details before installation helps avoid choosing equipment that the property cannot readily support.

Protect performance with model-specific maintenance

Tankless does not mean maintenance-free. Mineral scale can affect the heat exchanger, where water is heated. We review the owner's manual and service history to determine appropriate maintenance, including flushing or descaling when recommended, rather than promising every model needs the same treatment every year.

Water conditions and usage help determine the care schedule. Keep service records and mention any returning error codes, longer waits or temperature changes at your appointment. Addressing a developing problem gives you a clearer repair decision before an unexpected loss of hot water.

Know the visit cost and next step

The Diagnostic Service Call is $49 on weekdays from 8am–5pm, $89 after-hours or Saturday, and $237 Sunday, based on appointment time. We give you the price before work; the full Diagnostic Service Call is applied to the final bill if work proceeds. Ask about existing financing through Housecall Pro and payment options when reviewing your estimate.

Based in North Texas, Honest Choice Plumbing serves homes and businesses across Collin, Dallas, Denton, Rockwall, Hunt, Kaufman and Tarrant counties, including McKinney, Frisco, Plano and Dallas. For a business, tell us about peak demand and operating-hour constraints. Book Online or call (469) 734-0431; phone availability is 24/7.

From your first call to the repair

A clear plan for your plumbing repair.

  1. Tell us what’s happening

    Share the address, the symptoms, and how urgently you need help. Book Online or call us.

  2. Arrange the diagnostic visit

    We discuss appointment availability. A licensed master plumber evaluates the problem and explains the findings.

  3. Review the price before work

    We explain the proposed repair and its price. You decide whether to approve the work.

Diagnostic Service Call: $49 weekdays 8am–5pm; $89 after hours and Saturday; $237 Sunday. Visits are appointment-based. Repair work is priced separately for your approval.

Safety and planning resources

Learn more from trusted public sources.

Explore the resources behind the general safety and planning guidance on this page. Your property’s diagnosis and local requirements are reviewed separately.

A look at the work

Plumbing details, up close.

Real field photographs supplied by Honest Choice Plumbing. The images illustrate piping and fixtures; they do not establish a specific customer's result, job location, or repair method.

Storage water heater with accessible piping and connections in a utility space
Storage water-heater equipment and visible connections.

Your next step

Ready to book same-day tankless water heater service?

Ask about same-day water-heater service. Availability is confirmed after we review the heater, the problem, and the schedule.

Diagnostic Service Call: $49 weekdays 8am–5pm; $89 after hours and Saturday; $237 Sunday. Visits are appointment-based. Repair work is priced separately for your approval.

Clear answers

Same-Day Tankless Water Heater Service questions

Need help with a specific situation? Call or text and describe what is happening.

(469) 734-0431
Can you repair or replace a tankless heater the same day?

Same-day service is available when diagnosis, equipment, access, scope and scheduling allow. It is not guaranteed. Share the model and symptoms when you call so we can review the request.

Will tankless provide unlimited hot water?

It heats water on demand, but output is limited. Several fixtures running together can exceed capacity. Proper sizing considers simultaneous flow and the temperature rise needed.

Why does my tankless heater alternate between hot and cold?

Demand, flow restrictions or an equipment fault may be involved. Tell us when it happens and whether other fixtures are running; the pattern helps guide diagnosis.

How often should a tankless water heater be flushed?

Follow your model's maintenance instructions. Water conditions and usage affect the appropriate interval. We review whether flushing or descaling is due instead of assigning every unit an identical schedule.

Should I choose gas or electric tankless?

Compare hot-water demand with available fuel, equipment output and installation requirements. Gas and electric units have different infrastructure needs; neither is automatically the best fit for every property.

Should I repair my existing heater or replace it?

Compare the diagnosed repair cost, condition, service history and ability to meet demand. A repair may be sensible for an isolated fault; repeated costly failures can favor replacement.

Does tankless make hot water arrive immediately?

Not necessarily. Water already in the piping still travels to the faucet. Tell us if delivery delay is your main concern so we can distinguish it from heating capacity.

What affects a tankless installation price?

Equipment size, conversion versus replacement, connections, access and applicable installation requirements affect cost. Honest Choice Plumbing explains the scope and price before work begins.