Tankless Water Heater Replacement in Hemet, CA
Is your old tankless unit failing in Hemet? Get dependable tankless water heater replacement from FKM Plumbing for your Southern California home.
- Top Brands Available
- Dependable Hot Water
- Licensed Gas Line Technicians
- Code Compliant
Need a New Tankless Water Heater in Hemet, CA?
Our team is ready to help you pick and install the best tankless unit for your home's needs.
Tankless Water Heater Replacement in Hemet, CA Built for Your Water
When your old tankless unit is failing or you are ready to switch from a traditional tank, FKM Plumbing offers dependable tankless water heater replacement. Our licensed plumbers make sure your new system is sized correctly and installed to meet local Hemet, CA codes. That gives you on-demand hot water for years to come.
Our expertise includes:
- Safe gas and electric line connections for new units.
- Scale prevention with isolation valves and inline filter options
- Gas line sizing and upsizing for 199,000 BTU tankless units

Additional Plumbing Replacement Services in Hemet, CA
When repairs are no longer enough, our replacement services in Hemet, CA deliver durable upgrades that restore full performance.

Customers
Why Choose FKM Plumbing for Tankless Water Heater Replacement in Hemet, CA?
Around Hemet, flushing the water heater yearly and cleaning aerators keeps mineral buildup from cutting flow and efficiency. Hard water is rough on tankless heat exchangers, and many early failures trace back to scale and skipped flushing. We size, install and set up each replacement so it holds up to your local water supply.
- Endless Hot Water, Stop running out of hot water, even during peak demand, a true luxury for busy Hemet households with multiple showers or large families.
- Clean Venting, We route venting to meet manufacturer clearances from windows, doors and roof edges.
- Scale Protection, Every install includes isolation valves so the heat exchanger can be descaled without cutting pipe.
Citywide Coverage
FKM Plumbing serves every neighborhood and community within Hemet for all your tankless water heater replacement needs. Whether you are downtown or in the surrounding suburbs, our team is ready to deliver fast and professional service.
Experienced Team
Our team installs tankless heaters regularly and trains on manufacturer-specific setup, including recirculation programming and altitude settings. That experience shortens install time and prevents callbacks.
Safety-First Approach
We perform thorough 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 compliant with Southern California regulations.
Trusted Certified Hemet Plumbing Services Professionals
At FKM Plumbing, we take pride in providing licensed, certified plumbing services throughout Hemet, CA. 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 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 CertificationReliable Tankless Water Heater Replacement Services in Hemet, CA
Commercial Tankless Replacement in Hemet
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 suited to your water usage.

Tankless vs. Tank Water Heater Conversion in Hemet, CA
Considering converting from a traditional tank water heater to a tankless system in your Hemet, CA 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 ensures a smooth transition, so you can enjoy the long-term benefits of a modern, efficient tankless system.
Condensing Tankless Replacement in Hemet
Condensing tankless units like the Navien NPE series or Rinnai Sensei reach efficiencies above 90 percent by capturing heat from exhaust gases. They vent through inexpensive PVC and produce acidic condensate that must be neutralized and drained properly. We install a neutralizer cartridge and route the condensate line to an approved drain. Hot inland summers push water heaters and outdoor plumbing hard, while coastal salt air can corrode exposed metal fittings. Condensing units still save gas because they work year-round on showers, laundry and dishes. We explain the cost difference so you can decide if the efficiency gain is worth it.
Electric Tankless Water Heater Replacement in Hemet, CA
For properties without natural gas access or those looking for an all-electric solution, electric tankless water heaters are a practical choice. FKM Plumbing offers electric tankless water heater replacement services in Hemet, CA. This often involves careful 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 effectively, providing on-demand hot water without the need for gas lines.
Like-for-Like Tankless Swaps in Hemet
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 quickest 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 done in four to six hours.
Recirculation Tankless Upgrades in Hemet, CA
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 reasonable while saving thousands of gallons of wasted water a year. This upgrade is a favorite in long single-story ranch homes.
Emergency Tankless Water Heater Replacement in Hemet
A sudden tankless water heater failure can leave your Hemet home without hot water, which is a major inconvenience. FKM Plumbing offers emergency tankless water heater replacement to restore your hot water fast. 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 cut down your downtime and get your home back to normal with reliable hot water.

Exterior Mount Tankless Units in Hemet, CA
Many homes have tankless heaters mounted on an exterior wall with no venting at all, since the unit exhausts directly outside. These units face sun, rain and temperature swings, which can wear out plastic covers and wiring over time. Freezing pipes are rare in most of Southern California, and many homes have exposed outdoor plumbing that would never pass in a colder climate. When we replace them, we check the pipe cover, freeze protection settings and the electrical connection. We can add a protective pipe cover kit to shield the water and gas lines. Exterior models are often the easiest swap when the gas line is already sized correctly.
Tankless Water Heater Replacement Near Me in Hemet, CA
Local service matters because tankless problems often show up during the busiest part of your day. Our techs are close by and can figure out whether a repair or replacement makes more sense. We back every replacement with clear labor coverage and register your manufacturer warranty for you.
If you are searching for tankless water heater replacement near me in Hemet, CA, FKM Plumbing is your local expert. Our service area covers the whole 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.
FKM Plumbing at a Glance
- Licensed and insured plumbers serving Hemet, CA
- 24/7 emergency service with same-day scheduling
- Upfront, flat-rate pricing before work begins
- 4.8-star rated by 754+ Southern California customers
Hemet Map
Hemet Information
- Population
- 92,368
- Area codes
- 951/760/909
- Service area
- Hemet and communities within 40 miles
- Nearby
- Menifee, Perris, Murrieta, Moreno Valley
Replacing your tankless water heater in Hemet, CA 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 FKM Plumbing solutions in Hemet, CA.
Our Specialized Plumbing Services in Hemet, CA
At FKM Plumbing, we provide a complete range of plumbing services across Hemet, CA. 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 Hemet, CA
Replacing a tankless heater takes planning around gas, venting and water. Here is how we keep it simple.
Request a Quote
Contact FKM Plumbing today at (213) 871-0701 to schedule an on-site evaluation for your tankless water heater replacement. Our team will discuss your hot water needs and provide a detailed, transparent estimate.
Unit Selection
Based on your home's demands and existing setup, we will help you choose the ideal tankless water heater model. We consider factors like fuel type, flow rate and energy efficiency.
Expert Installation
Our licensed plumbers will expertly remove your old unit and install the new tankless water heater. We make sure all gas, water and vent connections meet Southern California code requirements for safety and performance.
Frequently Asked Questions About Tankless Water Heater Replacement in Hemet
The cost of tankless water heater replacement in Hemet, CA 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 necessary electrical or gas line upgrades. This price usually includes the unit itself and labor. We provide a detailed, upfront quote after a thorough assessment of your home.
A standard tankless water heater replacement, if you are upgrading from an existing tankless unit, usually takes 4 to 8 hours. If you are converting from a traditional tank water heater, the process can take longer, possibly a full day, due to additional plumbing, gas or electrical changes required for proper installation and venting.
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 significant savings on your utility bills over time, particularly in homes with varying hot water usage.
Well-maintained tankless units can last 15 to 20 years. In hard water areas without regular descaling, heat exchangers can fail far sooner. Annual flushing makes the biggest difference.
Often yes, especially when converting from a tank. Many tankless units need three quarter inch gas pipe and a meter that can handle 199,000 BTU on top of your furnace, range and dryer.
Tankless water heater replacement is a complex job that involves gas lines, electrical wiring, water connections and venting. It is highly recommended to hire a licensed professional like FKM Plumbing due to the safety risks and potential for improper installation, which can lead to leaks, gas hazards or inefficient operation. Professionals also protect code compliance and warranty validity.
We install Navien, Rinnai, Noritz, Takagi and Rheem tankless heaters. Each has strengths, and we recommend based on your flow needs, venting options and budget.
A direct swap usually takes four to six hours. A tank to tankless conversion with new gas and venting typically takes a full day.
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 · Moreno Valley, CA
Mark T.
When our office needed drain cleaning, FKM Plumbing provided quick, reliable service. The plumber arrived on time and made sure every drain flowed perfectly before leaving. Very satisfied.
Drain Cleaning · Temecula, CA
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 · Moreno Valley, CA
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 · Hemet, CA
Emily R.
I called FKM 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 · Moreno Valley, CA
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 · Perris, CA













