Tankless Water Heater Installation & Repair in California
24/7 Service, No After-Hours Fees, 35+ Years of Experience
When your water heater gives out or you’re ready to upgrade to an on-demand system, Rooter Hero Plumbing & Air is available around the clock to help. We install, replace, repair, and maintain tankless water heaters for homeowners throughout California, with no extra charge for evenings, weekends, or holidays. Our technicians are background-checked, regularly trained, and arrive fully equipped to get the job done right the first time.
Tankless water heaters heat water on demand rather than storing a full tank, eliminating standby heat loss and helping reduce energy costs. California homeowners who make the switch gain more than lower utility bills: endless hot water, a compact wall-mounted unit that frees up floor space, and a system built to last. Rooter Hero Plumbing & Air helps you weigh your options and choose the right unit for your home’s size and demand.
Ready to install or repair a tankless water heater in California? Call Rooter Hero Plumbing & Air any time at (866) 941-8214 and we can get a trained plumber to you fast.
Tankless Water Heater Services We Offer
Our plumbers handle the full range of tankless water heater work, from first-time installations to emergency repairs on existing units.
Our tankless water heater services include:
- New installation for homes switching from traditional tank units or building new
- Replacement of aging tank or tankless units with properly sized, code-compliant systems
- Repair of malfunctioning units, including ignition failures, temperature problems, and error codes
- Preventative maintenance to extend unit life and maintain efficiency
Installation involves more than swapping out a unit. Our plumbers assess your existing plumbing and gas setup before recommending equipment. When needed, we coordinate gas line upgrades, proper venting configuration, and the permits and seismic strapping California requires for water heater installations. Local air quality regulations in some California regions also affect equipment selection, and our licensed plumbers can advise on what applies to your area. We don’t consider the job finished until the system is tested for leaks, calibrated to temperature, and confirmed working properly.
Current Promotions
Don't Miss Out on
Savings!
-
$77 Drain CleaningWith proper access, up to 75 ft. Excludes Commercial. Yard drains, roof access, crawl spaces, and disassembling are not included. This coupon applies to ground level clean outs ONLY, prices may vary for second or higher floor drains.
Valid Aug 1, 2026 - Aug 31, 2026
-
“From making the appointment to receiving the estimate and getting the job done, everything was professional and pleasant.”- Stephanie M.
-
“Paul Cortez did an amazing job and the issue has been resolved in a very timely manner. Everything went well. Very flexible and efficient.”- Chris S.
-
“We'll definitely call Rooter Hero again when we have need of any sort of plumbing service, hopefully with this same technician.”- Cindy R.
-
“He even looped in his co-worker, Travis who was equally superlative! Thank you both SO much!”- Jeeo J.
-
“Called them on Sunday 1pm for a kitchen sink draining issue. They were able to get me a same day appointment at their coupon price!”- Peter A.
-
“Joaquin's knowledge and professionalism were outstanding and the repairs did not break the bank. Thank you!”- Jacki M.
-
“Jason and his crew were efficient and made sure to make everything was kept clean and orderly from start to finish.”- Ann W.
-
“It’s not always easy to find someone who combines speed with quality work, but Joaquin did exactly that.”- Amer A.
-
“We had a kitchen sink that clogged, and this happens to us pretty frequently. Called these guys up and they came out same day within a few hours.”- Amir N.
Why California Homeowners Trust Rooter Hero Plumbing & Air for Tankless Water Heater Service
A lot of companies can install a tankless water heater. Fewer can show up at midnight on a holiday, handle the gas line work, pull the required permits, and back it all up with 35+ years of hands-on plumbing experience. That combination is what sets Rooter Hero Plumbing & Air apart from single-service installers and general handymen alike.
- 24/7/365 availability with no after-hours, weekend, or holiday fees
- 35+ years of plumbing experience serving homeowners across California
- Background-checked, trained technicians who handle the full scope of tankless work
- Licensed, insured, and bonded in California
- 4.8 out of 5 rating from more than 8,000 reviews
- Honest guidance on unit selection, with no pressure to upsell what you don’t need
We also offer savings for qualifying customers. A $50 discount applies to any plumbing repair of $500 or more (residential, limit one per household, coupon required at time of service). Seniors and military members receive a 10% discount (residential, can’t be combined with other offers, coupon required at time of service).
Schedule Tankless Water Heater Service in California
Whether you’re installing a new system, replacing a failing unit, or scheduling annual maintenance, Rooter Hero Plumbing & Air is ready any time of day or night. There are no extra fees for after-hours calls, so don’t wait until Monday if the problem is happening now.
Call Rooter Hero Plumbing & Air at (866) 941-8214 to schedule tankless water heater service anywhere in California. We’re available 24/7 with no after-hours fees.