Tankless Water Heater Replacement in Eau Claire, WI
Get endless hot water back in your Eau Claire, WI home with a tankless water heater replacement done right, from gas line sizing to venting and descaling valves.
- Same-Day Replacement Available
- Manufacturer Warranty Registration
- Licensed Gas Line Technicians
- Upfront Pricing
Need a New Tankless Water Heater in Eau Claire, WI?
Contact us today for a free estimate and discover the benefits of on-demand hot water.
Reliable Tankless Water Heater Replacement for Eau Claire, WI Homes
When your old tankless unit is failing or you are ready to switch from a traditional tank, HKV Plumbing offers dependable tankless water heater replacement. Our licensed plumbers make sure your new system is sized correctly and installed to meet local Eau Claire, WI codes. You get on-demand hot water for years to come.
Our expertise includes:
- Clean integration with existing plumbing and gas lines.
- Gas line sizing and upsizing for 199,000 BTU tankless units
- Safe gas and electric line connections for new units.

Additional Plumbing Replacement Services in Eau Claire, WI
When repairs are no longer enough, our replacement services in Eau Claire, WI deliver modern, efficient equipment installed right.

Customers
Why Choose HKV Plumbing for Tankless Water Heater Replacement in Eau Claire, WI?
A tankless heater is only as good as its gas supply and venting. We measure both before we quote, so your new unit fires at full output instead of cutting out on high demand.
- Clean Venting, We route venting to meet manufacturer clearances from windows, doors and rooflines.
- Endless Hot Water, Stop running out of hot water, even during peak demand, a true luxury for busy Eau Claire households with multiple showers or large families.
- Right-Sized Units, We calculate gallons per minute and temperature rise for your fixtures instead of estimating from square footage.
Citywide Coverage
We replace tankless water heaters in every neighborhood of Eau Claire, from newer builds with garage-mounted units to older homes converting from a tank. Our trucks carry venting kits and gas fittings for both interior and exterior installs.
Experienced Team
Our technicians have pulled and replaced tankless units from Rinnai, Navien, Noritz, Takagi and Rheem, so they know the quirks of each brand's error codes and mounting brackets. They also understand which older units can be matched to existing venting and which need new runs.
Safety-First Approach
We perform careful safety checks after every tankless water heater replacement, including leak detection for gas lines and proper ventilation. You can rest assured your new system is safe and in line with Wisconsin regulations.
Trusted Certified Eau Claire Plumbing Services Professionals
At HKV Plumbing, we take pride in providing certified plumbing services throughout Eau Claire, WI. Backed by recognized industry credentials, our experienced plumbers combine technical skill with genuine customer care. Whether it is repair, installation, or maintenance, we follow strict safety and quality standards to deliver long-lasting results you can trust.
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PHCC Plumbing Contractor Recognition
Better Business Bureau (BBB) Accreditation
Angi Certified Pro
ISO 9001 Quality Management CertificationDependable Tankless Water Heater Replacement Services in Eau Claire, WI
Electric Tankless Water Heater Replacement in Eau Claire, WI
For properties without natural gas access or those looking for an all-electric solution, electric tankless water heaters are a viable choice. HKV Plumbing offers electric tankless water heater replacement services in Eau Claire, WI. This often involves careful assessment of your home's electrical panel capacity, as these units require substantial amperage. We make sure your new electric tankless unit is installed safely and correctly, providing on-demand hot water without the need for gas lines.

Emergency Tankless Replacement in Eau Claire, WI
A tankless heater that leaks from the heat exchanger or refuses to ignite can leave you with no hot water at all. We offer same-day emergency replacement for common models and can usually get a unit installed the day you call. If your exact model is not in stock, we can sometimes do a temporary repair to restore hot water while the replacement ships. We shut off gas and water to stop any leak as soon as we arrive. Call (414) 432-4641 any time your tankless quits.
Tank to Tankless Conversions in Eau Claire, WI
Converting from a 40 or 50 gallon tank to tankless frees up floor space and ends standby heat loss in a garage or closet. The catch is that tankless units usually need a larger gas line, often three quarter inch or bigger, plus new venting. We check your meter size and pipe run before quoting so there are no surprises mid-job. We also cap or reroute the old flue and seal the roof penetration if it is no longer used. Plan for a conversion to take a full day.
Rinnai Tankless Water Heater Replacement in Eau Claire
Rinnai is a leading brand in the tankless water heater market, known for its quality and engineering. If your Rinnai unit is aging or malfunctioning, HKV Plumbing provides expert Rinnai tankless water heater replacement in Eau Claire. We make sure your new Rinnai unit is installed correctly, maximizing its efficiency and lifespan. Our technicians are familiar with the installation requirements and venting options for Rinnai models, so the upgrade goes smoothly.
Tankless vs. Tank Water Heater Replacement Cost in Eau Claire, WI
When considering tankless water heater replacement in Eau Claire, WI, it is natural to compare costs. While the initial installation of a tankless unit can be higher than a traditional tank, the long-term energy savings and longer lifespan often make it the more economical choice. We provide clear, upfront pricing for both options. That helps you make an informed decision based on your budget and hot water needs, with no surprises.
Tankless vs. Tank Water Heater Conversion in Eau Claire, WI
Thinking about converting from a traditional tank water heater to a tankless system in your Eau Claire, WI home? This is a common and worthwhile upgrade, but it requires specialized expertise. We handle the entire conversion, which can involve rerouting gas lines, upgrading electrical service, modifying water lines and installing new venting. Our team makes for a smooth transition, so you can enjoy the long-term benefits of a modern, efficient tankless system.
Gas Tankless Water Heater Replacement in Eau Claire
Many homes in Eau Claire rely on natural gas for water heating, and gas tankless units are a highly efficient option. Our gas tankless water heater replacement service includes thorough inspection of your existing gas lines, proper sizing of new gas lines if needed, and secure venting to the outdoors. We put a priority on safety. All gas connections and combustion air requirements meet Wisconsin and local codes, preventing potential hazards and maximizing efficiency.

Residential Tankless Water Heater Replacement in Eau Claire
For homeowners in Eau Claire, upgrading to a tankless water heater offers significant benefits like endless hot water and reduced energy use. We assess your household's hot water demand to recommend the right sized unit, so you get strong performance. Our team handles everything from safely disconnecting your old unit to installing the new tankless system. That includes any needed gas and water line adjustments and venting changes to meet current codes.
Tankless Water Heater Replacement Near Me in Eau Claire, WI
When your tankless unit needs replacing, you want a reliable local company. We aim to be the go-to choice for tankless water heater replacement near me in Eau Claire, offering reliable solutions and transparent pricing to our neighbors throughout the community.
If you are searching for tankless water heater replacement near me in Eau Claire, WI, HKV Plumbing is your local expert. Our service area covers the entire region, so a professional plumber is always close by when you need a new, efficient hot water solution. We pride ourselves on quick response times and reliable service for all tankless installations.
HKV Plumbing at a Glance
- Fully licensed plumbing team covering Eau Claire, WI
- Same-day appointments and 24/7 emergency response
- Upfront, flat-rate pricing before work begins
- 4.8-star rated by 448+ Wisconsin customers
Eau Claire Map
Eau Claire Information
- Population
- 70,542
- Area codes
- 715/534/608
- Service area
- Eau Claire and communities within 40 miles
- Nearby
- La Crosse, Wausau, Oshkosh, Appleton
Replacing your tankless water heater in Eau Claire, WI is a smart investment, especially with seasonal temperature swings and the demand for efficient hot water in modern homes.
Expert Services
Trust our professionals for reliable HKV Plumbing solutions in Eau Claire, WI.
Our Specialized Plumbing Services in Eau Claire, WI
At HKV Plumbing, we provide a complete range of plumbing services across Eau Claire, WI. From leak detection to full system installations, our team ensures fast, precise, and affordable service for both residential and commercial properties. Explore our core services below:
How Our Tankless Water Heater Replacement Service Works in Eau Claire, WI
We keep the process easy to follow from the first call to the final combustion test.
Request a Quote
Call us at (414) 432-4641 or fill out our online form to schedule an first consultation. We will discuss your hot water needs and current system issues, and provide a detailed, upfront estimate.
On-Site Assessment
Our licensed plumber will visit your Eau Claire home to assess your existing water heating system, plumbing, gas or electrical connections and venting. This helps us recommend the right tankless model and make sure it is properly sized for your household.
Expert Installation
Once you approve the quote, our team will proceed with the professional installation of your new tankless water heater. We carefully remove the old unit, make any needed plumbing or gas line changes, and make sure the new system is correctly vented and fully operational.
Frequently Asked Questions About Tankless Water Heater Replacement in Eau Claire
The cost of tankless water heater replacement in Eau Claire, WI usually ranges from $3,000 to $6,000, depending on the unit's capacity, brand, complexity of installation, such as converting from a tank model, and any needed electrical or gas line upgrades. This price usually includes the unit itself and labor. We provide a written, upfront quote after a thorough assessment of your home.
A direct swap typically takes four to six hours. A tank to tankless conversion with new gas and venting typically takes a full day.
A standard tankless water heater replacement typically takes between 4 and 8 hours. This timeframe can vary based on whether we are replacing an existing tankless unit with a similar model or upgrading from a traditional tank water heater. A tank conversion can call for more extensive changes to gas lines, electrical or venting.
We do not recommend it. Gas line sizing, venting clearances and combustion testing require training, and improper installs can void the warranty or create carbon monoxide hazards.
DIY tankless water heater replacement is usually not recommended due to the complexity of gas lines, high-voltage electricity, water connections and venting requirements. Improper installation can lead to serious gas leaks, carbon monoxide poisoning, water damage or electrical hazards. It is best to hire a licensed and experienced plumber like HKV Plumbing.
Yes, tankless water heaters are usually more energy-efficient than traditional tank models. They only heat water on demand, eliminating the standby heat loss that comes with keeping a large tank of water hot. This can lead to real savings on your utility bills over time, particularly in homes with varying hot water usage.
Yes, you can absolutely replace a traditional tank water heater with a tankless unit. This is a common upgrade for homeowners seeking better energy efficiency and endless hot water. However, it often requires changes to gas lines, venting and possibly electrical wiring, making professional installation essential for safety and performance.
Well-maintained tankless units can last 15 to 20 years. In hard water areas without regular descaling, heat exchangers can fail much sooner. Annual flushing makes the largest difference.
What People Are Saying About Our Plumbing Experts?

Daniel K.
A pipe burst at 11 pm and they actually answered. The plumber showed up within the hour, shut everything down, and had us back to normal the next morning. Could not ask for more.
Emergency Plumbing · Oshkosh, WI
Sofia M.
Two new toilets installed in one visit, no mess left behind, and the tech even adjusted a faucet he noticed was dripping. Fair pricing and really friendly.
Toilet Installation · Wausau, WI
Mark T.
When our office needed drain cleaning, HKV Plumbing provided quick, reliable service. The plumber arrived on time and made sure every drain flowed perfectly before leaving. Very satisfied.
Drain Cleaning · Green Bay, WI
Patricia H.
We had a slab leak that two other companies could not find. HKV Plumbing located it in under an hour, explained our options, and the price matched the quote to the dollar.
Slab Leak Repair · Eau Claire, WI
Robert G.
The trenchless sewer replacement saved our front yard. They walked us through the camera inspection footage first so we knew exactly what we were paying for.
Sewer Line Replacement · Wausau, WI
Emily R.
I called HKV Plumbing for plumbing repair, and the technician was fast, polite, and thorough. They explained the problem clearly and fixed it the same day. I will definitely hire them again. Highly recommended!
Plumbing Repair · Eau Claire, WI













