Tankless Water Heater Installation in San Bernardino, CA
Ready to get rid of the bulky tank in San Bernardino, CA? We handle gas line upsizing, venting and scale protection for a tankless install that lasts.
- Modern Hot Water Systems
- Energy-Saving Solutions
- Fast, Reliable Installation
- Upfront Pricing
Get Your New Tankless System in San Bernardino, CA.
Our skilled plumbers are ready to help you choose and install the right tankless water heater for your home.
Expert Tankless Water Heater Installation for San Bernardino, CA Families
For reliable tankless water heater installation in San Bernardino, CA, trust FKM Plumbing. Our licensed plumbers make sure your new system is sized correctly and installed to all local plumbing codes, giving you years of efficient hot water.
Our expertise includes:
- Clean integration with existing plumbing systems.
- Gas line upsizing and meter capacity checks for high BTU demand
- Accurate sizing and model selection for your home.

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

Customers
Why Choose FKM Plumbing for Tankless Water Heater Installation in San Bernardino, CA?
A tankless water heater only performs if it is sized, vented and supplied correctly. We do the math on flow rate, temperature rise and gas load before recommending a model.
- Longer Lifespan, Tankless water heaters usually last longer than conventional models, offering a better long-term investment.
- Accurate Sizing, We match the unit's flow rate to your fixtures and incoming water temperatures.
- Energy Savings, Tankless units only heat water as needed, which can significantly reduce your energy bills compared to traditional tank heaters.
Citywide Coverage
We install tankless water heaters in homes throughout San Bernardino, mounting them in garages, utility closets and on exterior walls. Exterior installs save indoor space and simplify venting in many homes.
Experienced Team
Our team of licensed plumbers has thorough training and experience with tankless water heater installation. They are familiar with many brands and models, providing a precise and efficient setup for your home.
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 required.
Trusted Certified San Bernardino Plumbing Services Professionals
At FKM Plumbing, we take pride in providing licensed, certified plumbing services throughout San Bernardino, 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 CertificationDependable Tankless Water Heater Installation Services in San Bernardino, CA
Tank to Tankless Conversions in San Bernardino
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 often 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.

Rinnai Tankless Water Heater Installation in San Bernardino, CA
Rinnai tankless water heaters are a top choice for their reliability and long lifespan, making them a smart investment for homeowners across San Bernardino, CA. Our plumbers are factory-trained on Rinnai systems, delivering 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 reliably for years.
Tankless vs Tank Cost Comparison in San Bernardino, 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 Relocation in San Bernardino
Sometimes the ideal spot for a tankless water heater is not where your old tank was located. For homeowners in San Bernardino 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, Navien and Noritz Installation in San Bernardino, CA
We install leading tankless brands including Rinnai, Navien, Noritz and Rheem. Rinnai offers a wide model range and strong parts support, while Navien condensing units often include built-in recirculation pumps. Noritz is known for durable commercial-grade heat exchangers. We help you compare models by flow rate, efficiency and warranty.
Residential Tankless System Upgrades in San Bernardino
Upgrading your traditional hot water tank to a tankless system in San Bernardino can noticeably improve efficiency and comfort. We assess your home's hot water demands, existing plumbing and utility connections to recommend the best tankless model for your household size and usage patterns. Our team manages the entire conversion, including the safe removal and disposal of your old water heater, minimizing disruption to your daily routine.
Residential Tankless Water Heater Installation in San Bernardino
FKM Plumbing focuses on installing tankless water heaters for residential properties. We assess your home's hot water demands, family size and existing utility connections to recommend the most suitable unit, so you get the right capacity for your needs. Our installations are designed to be energy efficient, providing endless hot water while potentially lowering your monthly utility bills in San Bernardino.

Commercial Tankless Water Heater Services in San Bernardino, CA
Businesses in San Bernardino benefit from the continuous hot water supply and compact design of commercial tankless water heaters. From restaurants to hair salons, we install robust systems designed to meet high-demand commercial needs. FKM Plumbing understands the requirements for commercial installations, including larger capacity units and commercial plumbing codes, so your business never runs short of hot water.
Tankless Water Heater Installation Near Me in San Bernardino, CA
Our local presence means faster response times and a team that understands the challenges and opportunities for tankless systems in San Bernardino. We are focused on bringing modern, efficient hot water to every home in our community.
When you search for 'tankless water heater installation near me' in San Bernardino, CA, FKM Plumbing is your reliable local choice. We know the local plumbing and building codes thoroughly, so every installation is done right the first time.
FKM Plumbing at a Glance
- Licensed and insured plumbers serving San Bernardino, CA
- 24/7 emergency service with same-day scheduling
- Clear written estimates, no hidden fees
- 4.8-star rated by 754+ Southern California customers
San Bernardino Map
San Bernardino Information
- Population
- 223,728
- Area codes
- 909/760/951
- Service area
- San Bernardino and communities within 40 miles
- Nearby
- Rialto, Redlands, Fontana, Jurupa Valley
Installing a tankless water heater in San Bernardino, CA can significantly boost energy efficiency and provide endless hot water, a worthwhile upgrade for homes dealing with hard water and changing seasonal demand.
Expert Services
Trust our professionals for reliable FKM Plumbing solutions in San Bernardino, CA.
Our Specialized Plumbing Services in San Bernardino, CA
At FKM Plumbing, we provide a complete range of plumbing services across San Bernardino, 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 We Install Tankless Water Heaters in San Bernardino, CA
Here is how we take your tankless project from the first call to hot water at the faucet.
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 multiple fixtures. Then we show you how to flush the system and register your warranty.
Frequently Asked Questions About Tankless Water Heater Installation in San Bernardino
The cost for tankless water heater installation in San Bernardino can range from $3,000 to $6,000, depending on the unit type (gas or electric), brand, capacity and complexity of the installation, such as gas line upgrades or new venting. This price typically 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 extend the unit's lifespan. We offer maintenance services to keep your system running optimally.
A straight replacement takes four to six hours. Tank to tankless conversions with gas and venting changes usually take a full day.
Signs you might need a new water heater, tankless or otherwise, include a lack of hot water, rust-colored water, strange noises from the unit or frequent leaks. For tankless systems specifically, frequent error codes or a significant drop in hot water flow could point to a need for service or replacement.
With annual descaling, tankless units often last 15 to 20 years. Skipping maintenance in hard water areas can shorten that significantly.
Tankless water heaters offer several key benefits: endless hot water on demand, significant energy savings from heating water only when needed, a longer lifespan (often 20+ years) and a compact, space-saving design. They also lower the risk of tank leaks and the water damage that comes with them.
No, we firmly advise against DIY tankless water heater installation. These systems involve complex connections for gas, water and electricity, along with specific venting requirements. Improper installation can lead to safety hazards, void warranties and costly repairs. Always use a licensed professional.
Absolutely. When properly sized, a tankless water heater can provide an endless supply of hot water, even for large families. It is important to select a unit with a high enough GPM (gallons per minute) rating to meet your peak demand.
What People Are Saying About Our Plumbing Experts?

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 · San Bernardino, 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 · Fontana, 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 · Riverside, 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 · Riverside, 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 · Rialto, 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 · Rancho Cucamonga, CA













