Tankless Water Heater Replacement in Yakima, WA
Upgrade your water heating setup with a high-efficiency tankless unit from FHN Plumbing in Yakima, WA, for long-term comfort and savings.
- Same-Day Replacement Available
- Expert Plumbers
- Isolation Valves Installed Standard
- Expert, Licensed Plumbers
Endless Hot Water Starts With One Call in Yakima, WA.
Contact us today for a free estimate and discover the benefits of on-demand hot water.
Tankless Water Heater Replacement in Yakima, WA Built for Hard Water
FHN Plumbing specializes in professional tankless water heater replacement for homes across Yakima, WA. We know that upgrading to a tankless system is a significant investment. Our goal is to provide a smooth installation that gets the most from your energy efficiency and hot water supply.
Our expertise includes:
- Careful removal and disposal of old water heaters.
- Gas line sizing and upsizing for 199,000 BTU tankless units
- Seamless integration with existing plumbing and gas lines.

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

Customers
Why Choose FHN Plumbing for Tankless Water Heater Replacement in Yakima, WA?
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.
- Space Saving, Their compact design allows tankless units fit in smaller spaces, freeing up useful room in your utility closet or garage.
- Right-Sized Units, We calculate gallons per minute and temperature rise for your fixtures instead of guessing from square footage.
Citywide Coverage
We replace tankless water heaters in every neighborhood of Yakima, from newer builds with garage-mounted units to older homes converting from a tank. Our trucks carry venting kits and gas fittings for both indoor and outdoor installs.
Experienced Team
Our team of licensed plumbers has extensive experience with all major tankless water heater brands and models. They undergo ongoing training to stay current on installation techniques and safety protocols for this specialized equipment.
Safety-First Approach
Safety is our top priority for every tankless water heater replacement. We adhere strictly to all local Washington plumbing and gas codes, so your new unit is installed securely and operates without risk.
Trusted Certified Yakima Plumbing Services Professionals
At FHN Plumbing, we take pride in providing certified plumbing services throughout Yakima, WA. Backed by leading 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 lasting results you can trust.
Call Us Now
PHCC Plumbing Contractor Recognition
Better Business Bureau (BBB) Accreditation
Angi Certified Pro
ISO 9001 Quality Management CertificationReliable Tankless Water Heater Replacement Services in Yakima, WA
Like-for-Like Tankless Swaps in Yakima
When your existing tankless has a cracked heat exchanger or a failed control board that is not worth repairing, a direct replacement is often the fastest fix. We match the new unit to your current gas line, venting type and mounting location whenever possible. Many Rinnai and Navien models share similar footprints, which keeps wall patching to a minimum. We also replace the old service valves if they are corroded or stuck. Most like-for-like swaps are finished in four to six hours.

Recirculation Tankless Upgrades in Yakima, WA
If you are tired of running the tap while you wait for hot water, a tankless with a built-in recirculation pump can bring heat to the fixture in seconds. Navien A series and Rinnai units with internal pumps can use a dedicated return line or a crossover valve under the farthest sink. We program schedules so the pump runs only during your morning and evening peaks. That keeps gas use in check while saving thousands of gallons of wasted water a year. This upgrade is a favorite in long single-story ranch homes.
Navien Tankless Water Heater Replacement in Yakima, WA
Navien tankless water heaters are popular for their condensing technology, delivering high efficiency and performance. When it is time for a Navien tankless water heater replacement in Yakima, WA, you can count on FHN Plumbing. We have broad experience with Navien's advanced systems, including their combination boiler and water heater units. Our installation process focuses on optimizing your new Navien's performance, so you benefit from its energy-saving features and reliable hot water output.
Tankless vs. Tank Water Heater Conversion in Yakima, WA
Considering converting from a traditional tank water heater to a tankless system in your Yakima, WA 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.
Emergency Tankless Water Heater Replacement in Yakima
A sudden tankless water heater failure can leave your Yakima home without hot water, which is a serious inconvenience. FHN Plumbing offers emergency tankless water heater replacement to restore your hot water quickly. We prioritize urgent situations, working to diagnose the issue and, if replacement is necessary, get a new unit installed as soon as possible. Our goal is to minimize your downtime and get your home back to normal with reliable hot water.
Electric Tankless Water Heater Replacement in Yakima, WA
For properties without natural gas access or those looking for an all-electric solution, electric tankless water heaters are a practical choice. FHN Plumbing offers electric tankless water heater replacement services in Yakima, WA. This often involves close assessment of your home's electrical panel capacity, as these units require significant 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.
Commercial Tankless Replacement in Yakima
Restaurants, salons and small offices often use multiple tankless units linked together on a rack system. When one or more units fail, we replace them and rebalance the cascade controls so they share the load. We check gas pressure under full demand, since commercial racks can draw more than 600,000 BTU combined. Scheduling is easy to work around, so we can work after hours and keep your business open. We also set up a descaling schedule matched to your water usage.

Rinnai Tankless Water Heater Replacement in Yakima
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, FHN Plumbing provides expert Rinnai tankless water heater replacement in Yakima. We make sure your new Rinnai unit is installed correctly, maximizing its efficiency and lifespan. Our technicians know the installation requirements and venting options for Rinnai models, so the upgrade goes cleanly.
Tankless Water Heater Replacement Near Me in Yakima, WA
Do not compromise on your home's hot water supply. For dependable tankless water heater replacement near me in Yakima, choose FHN Plumbing. We provide upfront estimates, clear communication and expert workmanship, making your upgrade to endless hot water a simple and stress-free experience.
If you are searching for tankless water heater replacement near me, you want a local plumber who understands Washington water and gas codes. FHN Plumbing serves Yakima with trucks loaded for tankless installs. We can usually give you a firm quote after a short phone call and a few photos.
FHN Plumbing at a Glance
- Fully licensed plumbing team covering Yakima, WA
- Same-day appointments and 24/7 emergency response
- Clear written estimates, no hidden fees
- 4.9-star rated by 382+ Washington customers
Yakima Map
Yakima Information
- Population
- 96,750
- Area codes
- 509/509/253
- Service area
- Yakima and communities within 40 miles
- Nearby
- Wenatchee, Richland, Kennewick, Pasco
Replacing an old tankless water heater in Yakima, WA is essential for a reliable hot water supply, especially with changing seasonal demands and mineral content that can cut into unit efficiency and lifespan.
Expert Services
Trust our professionals for reliable FHN Plumbing solutions in Yakima, WA.
Our Specialized Plumbing Services in Yakima, WA
At FHN Plumbing, we provide a complete range of plumbing services across Yakima, WA. 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 Process Works in Yakima, WA
We follow a proven method for every tankless water heater replacement in Yakima, from initial assessment to final testing, for a quality installation.
Request a Quote
Call (425) 491-3131 with your current model number and a photo of the install. We give you a rough price and schedule a visit.
Size and Inspect
Our tech measures gas line size, meter capacity, venting path and water hardness. We recommend a unit that fits your hot water demand.
Install and Test
We remove the old heater, install the new one with service valves and venting, then test gas pressure and combustion. You get a walkthrough on settings and annual flushing.
Frequently Asked Questions About Tankless Water Heater Replacement in Yakima
A like-for-like gas tankless replacement typically runs $2,800 to $4,500 installed, depending on the brand and venting. Converting from a tank to tankless often costs $4,000 to $6,500 because of gas line and venting upgrades. We give you a written quote before any work starts.
Common signs that your tankless water heater needs replacement include frequent error codes, inconsistent water temperature, reduced hot water flow or a complete lack of hot water. If your unit is over 15 to 20 years old and repairs are becoming frequent and costly, replacement is often the more sensible choice.
Most manufacturers offer 10 to 15 years on the heat exchanger and about 5 years on parts for residential use. We add our own labor warranty and register the unit for you.
A standard tankless water heater replacement usually 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 may require more extensive changes to gas lines, electrical or venting.
FHN Plumbing installs and replaces all major trusted brands of tankless water heaters. Our preferred brands include Rinnai, Navien, Noritz and Rheem, as they are known for their reliability, energy efficiency and long-term performance. We can also order and install other brands based on your preference or home requirements.
Frequent error codes, fluctuating temperature, water leaking from inside the cabinet and a unit older than 15 years are common signs. If the heat exchanger is leaking, replacement is usually the better value.
Tankless water heater replacement is a complex job that involves gas lines, electrical wiring, water connections and venting. It is strongly recommended to hire a licensed professional like FHN Plumbing due to the safety risks and potential for improper installation, which can lead to leaks, gas hazards or inefficient operation. Professionals also ensure code compliance and warranty validity.
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.
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 · Yakima, WA
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 · Auburn, WA
Emily R.
I called FHN 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 · Richland, WA
Patricia H.
We had a slab leak that two other companies could not find. FHN Plumbing located it in under an hour, explained our options, and the price matched the quote to the dollar.
Slab Leak Repair · Richland, WA
Laura S.
I scheduled a water heater replacement, and the team made the process smooth and affordable. The new unit works perfectly, and they cleaned up after completing the job.
Water Heater Replacement · South Hill, WA
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 · Richland, WA













