Tankless Water Heater Installation in Los Angeles, CA
FKM Plumbing installs gas and electric tankless water heaters in Los Angeles, CA, sized to your household so hot water never runs out mid-shower.
- Energy Savings Possible
- Upfront Pricing
- Factory-Trained Installers
- Descaling Valves Installed
Get a Tankless Water Heater in Los Angeles, CA.
Our licensed plumbers are ready to provide a precise and professional tankless water heater installation.
Expert Tankless Water Heater Installation in Los Angeles, CA
FKM Plumbing installs tankless water heaters that heat water on demand instead of keeping a large tank hot all day. We calculate peak flow in gallons per minute, check incoming water temperature and confirm your gas supply can handle up to 199,000 BTU. Then we install the unit, venting and isolation valves to manufacturer specs.
Our expertise includes:
- Expert sizing and venting for optimal performance.
- Precise sizing and model selection for your home.
- Installation of gas and electric tankless models.

Additional Plumbing Installation Services in Los Angeles, CA
We install water heaters, pumps, lines, and fixtures across Los Angeles, CA with careful, permitted work that passes inspection the first time.

Customers
Why Choose FKM Plumbing for Tankless Water Heater Installation in Los Angeles, CA?
Choosing the right plumbing partner for a major upgrade like a tankless water heater is key for long-term satisfaction. FKM Plumbing brings years of experience to every installation, ensuring quality workmanship and reliable performance.
- Space Saving, These compact units free up useful floor space, often installed on a wall or in a small utility closet.
- Gas Done Right, Gas lines are upsized when needed so the heater never runs short of fuel.
- Scale Protection, Isolation valves and scale filters protect the heat exchanger from hard water.
Citywide Coverage
We install tankless water heaters in homes throughout Los Angeles, mounting them in garages, utility closets and on exterior walls. Exterior installs save indoor space and make for simpler venting in many homes.
Experienced Team
The team has converted many tank-style homes to tankless and knows the common pitfalls, from undersized gas lines to poor venting. They plan around those issues before the install starts.
Safety-First Approach
Tankless units must be vented correctly to remove combustion gases safely, and we follow manufacturer clearance and termination requirements. Condensing units get a proper condensate drain and neutralizer when needed.
Trusted Certified Los Angeles Plumbing Services Professionals
At FKM Plumbing, we take pride in providing licensed, certified plumbing services throughout Los Angeles, 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 Installation Services in Los Angeles, CA
Tank to Tankless Conversions in Los Angeles
Converting from a tank requires more than swapping units. A 40 gallon tank heater uses roughly 40,000 BTU, while a whole-home tankless unit may need up to 199,000 BTU, so the gas line usually needs to be upsized. Venting changes from a metal flue to PVC or stainless, and the unit moves to a wall location. We remove and dispose of your old tank and patch the old flue penetration.

Tankless Water Heater Replacement in Los Angeles, CA
If your old tankless unit is failing or you are upgrading from a traditional tank, FKM Plumbing offers seamless tankless water heater replacement. We carefully remove the old unit, make any needed adjustments to plumbing and venting and install your new, more efficient model. Our goal is to make the transition as smooth as possible, ensuring continuous hot water in your Los Angeles, CA home.
Electric Tankless Water Heater Installation in Los Angeles, CA
Electric tankless water heaters are an excellent option for homes in Los Angeles where natural gas is not available or preferred. These units are often smaller, simpler to vent and can be installed closer to the point of use. FKM Plumbing provides expert electrical sizing to make sure your home's panel can safely support a new electric tankless unit, offering consistent hot water without the need for a gas line.
Propane Tankless Water Heater Installation in Los Angeles
Many homes outside natural gas service areas rely on propane. FKM Plumbing is experienced in installing propane tankless water heaters, which require specific gas line sizing, regulator adjustments and venting. We make sure your propane system is installed correctly for maximum efficiency and safety, providing reliable hot water for your Los Angeles residence.
Gas Tankless Water Heater Installation in Los Angeles
For many homes in Los Angeles, gas tankless water heaters are a popular choice due to their powerful heating and lower operating costs compared to electric models. Our licensed technicians handle all aspects of gas line connections, venting and combustion air requirements, so your system operates safely and efficiently. We work with leading brands like Rinnai and Noritz to provide high-performance, on-demand hot water.
Tankless Water Heater Relocation in Los Angeles
Sometimes the ideal spot for a tankless water heater is not where your old tank was located. For homeowners in Los Angeles looking to free up space or improve access, FKM Plumbing offers professional tankless water heater relocation. This can involve rerouting gas or water lines and possibly electrical work, all handled with precision and to local codes by our experienced team.
Rinnai Tankless Water Heater Installation in Los Angeles, CA
Rinnai tankless water heaters are a top choice for their reliability and long lifespan, making them a smart investment for homeowners across Los Angeles, CA. Our plumbers are factory-trained on Rinnai systems, ensuring a clean installation that follows all manufacturer specifications. We make sure gas line sizing, venting and water connections are correct so your Rinnai unit provides endless hot water efficiently for years.

Tankless vs Tank Cost Comparison in Los Angeles, CA
Tankless installation costs more upfront than a standard tank because of the unit price, gas line upgrades and venting changes. Over time, lower standby energy losses and a longer expected lifespan make up for part of that cost. Tankless units often last 15 to 20 years with proper descaling, compared with about 8 to 12 years for many tanks in hard water areas. We give you a side-by-side quote so you can decide what fits your budget.
Tankless Water Heater Installation Near Me in Los Angeles, CA
When you search for 'tankless water heater installation near me' in Los Angeles, CA, FKM Plumbing is your reliable local choice. We know the local plumbing and building codes well, so every installation is done right the first time.
Our plumbers install tankless heaters in Los Angeles often and know local permit and inspection requirements. We stock common models and parts to keep projects moving. You get a clean, professional installation and clear instructions on maintenance.
FKM Plumbing at a Glance
- Licensed and insured plumbers serving Los Angeles, CA
- 24/7 emergency service with same-day scheduling
- Clear written estimates, no hidden fees
- 4.8-star rated by 754+ Southern California customers
Los Angeles Map
Los Angeles Information
- Population
- 3,820,914
- Area codes
- 213/310/626
- Service area
- Los Angeles and communities within 40 miles
- Nearby
- Santa Monica, Inglewood, Hawthorne, Florence-Graham
Installing a tankless water heater in Los Angeles, CA is a smart investment through warm and chilly seasons alike, delivering consistent hot water without the energy waste of heating a large tank all year.
Expert Services
Trust our professionals for reliable FKM Plumbing solutions in Los Angeles, CA.
Our Specialized Plumbing Services in Los Angeles, CA
At FKM Plumbing, we provide a complete range of plumbing services across Los Angeles, 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 Installation Process Works in Los Angeles, CA
Our tankless water heater installation process at FKM Plumbing is designed to be simple and efficient, from your initial inquiry to enjoying endless hot water.
Request a Quote
Call (213) 871-0701 to schedule a site visit. We assess your fixtures, gas supply and venting options, then give you a written quote.
Install and Upgrade
We remove your old heater, upsize gas lines if needed and mount the new unit. Venting, water connections and isolation valves are installed to manufacturer specs.
Test and Train
We fire the unit, check gas pressure and test hot water at several fixtures. Then we show you how to flush the system and register your warranty.
Frequently Asked Questions About Tankless Water Heater Installation in Los Angeles
The cost for tankless water heater installation in Los Angeles can range from $3,000 to $6,000, based on the unit type (gas or electric), brand, capacity and complexity of the installation, such as gas line upgrades or new venting. This price usually includes the unit and professional labor. We provide a detailed, no-obligation estimate after an on-site assessment.
Tankless water heaters benefit from annual flushing to remove mineral buildup, especially in areas with hard water. This helps maintain efficiency and prolong the unit's lifespan. We offer maintenance services to keep your system running optimally.
Yes, a permit is typically required because the job involves gas, venting and water connections. We pull the permit and schedule the inspection.
Absolutely. Tankless water heaters are an excellent choice for Southern California homes. Their energy efficiency can help manage utility costs, especially during peak demand. The compact size is ideal for the smaller utility closets common in many houses, and the endless hot water suits busy families throughout the year, whatever the climate.
Yes. When properly sized, a tankless water heater can provide an endless supply of hot water, even for large families. It is crucial to select a unit with a high enough GPM (gallons per minute) rating to meet your peak demand.
Yes, tankless water heaters are very energy efficient in almost any climate. A warm, dry climate is the main factor for plumbing in Southern California, with long irrigation seasons and steady demand on outdoor lines. Since they only heat water on demand, they avoid the standby heat loss typical of traditional tanks, which can be substantial even in milder seasons.
Yes, gas tankless water heaters require specific venting materials and configurations different from traditional tank heaters. Many modern units use PVC or polypropylene for venting, and proper slope and termination are critical for safe and efficient operation. Electric units do not need venting.
While it may seem appealing, tankless water heater installation is complex and should only be performed by a licensed professional. It involves gas lines, high-voltage electricity, water connections and intricate venting systems, all of which require specialized knowledge and adherence to safety codes. Incorrect installation can be dangerous and cancel warranties.
What People Are Saying About Our Plumbing Experts?

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 · Santa Monica, 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 · Torrance, 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 · Santa Monica, 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 · Inglewood, 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 · Los Angeles, CA
Patricia H.
We had a slab leak that two other companies could not find. FKM Plumbing located it in under an hour, explained our options, and the price matched the quote to the dollar.
Slab Leak Repair · Torrance, CA













