Tankless Water Heater Replacement in Long Beach, CA
For efficient tankless water heater replacement in Long Beach, CA, trust FKM Plumbing. We make sure your home has consistent hot water.
- Expert Plumbers
- Code Compliant
- Fast Tankless Replacement
- Reliable Hot Water
Need a Tankless Water Heater Replacement in Long Beach, CA?
Our team is ready to help you pick and install the best tankless unit for your home's needs.
Your Go-To for Tankless Water Heater Replacement in Long Beach, CA
FKM Plumbing handles every part of a tankless swap, including removing the old unit, upgrading the gas line if needed, installing new concentric or PVC venting and adding service valves for annual flushing. You get a neat, code-compliant install and a walkthrough of how to keep the heat exchanger healthy.
Our expertise includes:
- Careful removal and disposal of old water heaters.
- Seamless integration with existing plumbing and gas lines.
- Careful sizing and installation of new tankless units.

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

Customers
Why Choose FKM Plumbing for Tankless Water Heater Replacement in Long Beach, CA?
Our experience means your new tankless unit is installed correctly the first time, avoiding common issues that come from improper sizing or connection.
- Scale Protection, Every install includes isolation valves so the heat exchanger can be descaled without cutting into the pipes.
- Energy Savings, Tankless water heaters only heat water when you need it, which can noticeably reduce energy use compared to traditional tank models, a big plus for Southern California utility bills.
- Increased Lifespan, Modern tankless water heaters often last twice as long as conventional tank models, offering a better long-term investment.
Citywide Coverage
We replace tankless water heaters in every neighborhood of Long Beach, 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 plumbing team is made up of well trained and licensed professionals with extensive experience in tankless water heater technology. We stay current on the latest models, installation techniques and local Southern California plumbing codes.
Safety-First Approach
We take extra care with gas and water line connections, ventilation and pressure relief systems. You get a replacement that not only works properly but also meets the highest safety standards.
Trusted Certified Long Beach Plumbing Services Professionals
At FKM Plumbing, we take pride in providing certified plumbing services throughout Long Beach, CA. 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 CertificationEfficient Tankless Water Heater Replacement Services in Long Beach, CA
Commercial Tankless Replacement in Long Beach
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 split 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.

Gas Tankless Water Heater Replacement in Long Beach
Many homes in Long Beach rely on natural gas for water heating, and gas tankless units are a very efficient option. Our gas tankless water heater replacement service includes careful inspection of your existing gas lines, proper sizing of new gas lines if needed, and secure venting to the outdoors. We prioritize safety. All gas connections and combustion air requirements meet Southern California and local codes, heading off potential hazards and maximizing efficiency.
Emergency Tankless Replacement in Long Beach, CA
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 often 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 (213) 871-0701 any time your tankless quits.
Exterior Mount Tankless Units in Long Beach, 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 break down plastic covers and wiring over time. On an occasional cold night, covering backflow preventers and outdoor valves is typically enough to avoid a break. 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 simplest swap when the gas line is already sized correctly.
Tankless vs. Tank Water Heater Replacement Cost in Long Beach, CA
When considering tankless water heater replacement in Long Beach, CA, it is natural to compare costs. While the upfront 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 honest, upfront pricing for both options. That helps you make an informed decision based on your budget and hot water needs, with no surprises.
Like-for-Like Tankless Swaps in Long Beach
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 seized. Most like-for-like swaps are finished in four to six hours.
Electric Tankless Water Heater Replacement in Long Beach, 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 Long Beach, 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.

Tank to Tankless Conversions in Long Beach, CA
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.
Tankless Water Heater Replacement Near Me in Long Beach, CA
Do not compromise on your home's hot water supply. For dependable tankless water heater replacement near me in Long Beach, choose FKM Plumbing. We provide upfront estimates, clear communication and expert workmanship, making your upgrade to endless hot water a smooth and stress-free experience.
Local service matters because tankless problems often show up during the busiest part of your day. Our techs are close by and can diagnose whether a repair or replacement makes more sense. We back every replacement with solid labor coverage and register your manufacturer warranty for you.
FKM Plumbing at a Glance
- Fully licensed plumbing team covering Long Beach, CA
- Same-day appointments and 24/7 emergency response
- Upfront, flat-rate pricing before work begins
- 4.8-star rated by 754+ Southern California customers
Long Beach Map
Long Beach Information
- Population
- 449,468
- Area codes
- 562/310/714
- Service area
- Long Beach and communities within 40 miles
- Nearby
- Lakewood, Carson, Bellflower, Compton
Around Long Beach, flushing the water heater yearly and cleaning aerators keeps mineral buildup from cutting flow and efficiency. Scale builds inside tankless heat exchangers over time, so a correctly sized replacement with flush valves helps protect homes in Long Beach, CA from early failures.
Expert Services
Trust our professionals for reliable FKM Plumbing solutions in Long Beach, CA.
Our Specialized Plumbing Services in Long Beach, CA
At FKM Plumbing, we provide a complete range of plumbing services across Long Beach, 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 Service Works in Long Beach, CA
We keep the process clear from the first call to the final combustion test.
Request a Quote
Call 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 clear, 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 carefully 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 Long Beach
The cost of tankless water heater replacement in Long Beach, CA typically 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 detailed, upfront quote after a thorough assessment of your home.
Yes, in most areas of Long Beach and Southern California, a permit is required for tankless water heater replacement, especially if it involves gas line changes or major electrical work. Our team at FKM Plumbing will handle all required permitting so your installation is fully compliant with local building codes and safety regulations.
With proper installation and regular maintenance, a new tankless water heater typically lasts 20 to 25 years. This is much longer than traditional tank water heaters, which usually last 10 to 15 years. Regular flushing and descaling can help extend the life of your tankless unit, especially in areas with hard water.
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.
Yes, you can certainly replace a traditional tank water heater with a tankless unit. This is a common upgrade for homeowners looking for 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.
New tankless water heaters typically come with a manufacturer's warranty, which usually covers the heat exchanger for 10 to 15 years and parts for 3 to 5 years. FKM Plumbing also provides a labor warranty on our installation work for your peace of mind. We will discuss warranty details for your chosen unit during your consultation.
To extend the life and efficiency of your new tankless water heater, regular maintenance is crucial, especially in areas with hard water. This usually involves annual flushing to remove mineral buildup, checking the air filter, and inspecting gas and water connections. FKM Plumbing offers maintenance plans to help keep your unit in top condition.
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 FKM Plumbing.
What People Are Saying About Our Plumbing Experts?

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 · Long Beach, 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 · Bellflower, 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 · Norwalk, CA
James P.
Our commercial plumbing system had a leak under the sink, and FKM Plumbing handled it professionally. The plumbers arrived quickly and restored everything without disruption to our customers.
Commercial Plumbing · Long Beach, CA
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 · Carson, 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 · Lakewood, CA













