Endless Hot Water and Instant Comfort with Tankless Water Heater Installation in Fountain Valley, California

Upgrade to a tankless water heater for on-demand hot water, long-term savings, and lasting reliability

IgnitionLabs Plumbing Sites

IgnitionLabs Plumbing Sites

Tired of running out of hot water halfway through a shower?. Or maybe your old tank water heater is leaking, inefficient, or costing you too much to run. Upgrade today to a tankless water heater and experience nonstop comfort and efficiency.

We’re your local experts for professional tankless water heater installation in Fountain Valley, California. Every installation is handled by licensed experts using best-in-class products from brands you can trust, such as Rinnai, Navien, and Noritz.

Tankless water heaters heat water on demand, giving you endless hot water whenever you need it and saving you up to 30 percent on energy costs. They save space, reduce maintenance needs, and outlast traditional tank-style heaters by years.

Whether you’re replacing an old system or upgrading for better efficiency, we make the process simple, fast, and guaranteed.

Get started now, call (xxx) xxx-xxxx or book your tankless water heater installation with our trusted team.

Why Tankless Water Heaters Are Becoming the Top Choice for Homeowners in Fountain Valley

Better technology, endless comfort, and real long-term value

Today’s tankless water heaters are not a luxury item, they’re the smart choice for efficiency and comfort. Instead of storing and constantly reheating water like a tank model, tankless water heaters work on demand for maximum efficiency.

These are the main benefits that make homeowners switch to tankless water heaters.

  • Unlimited Hot Water – Enjoy nonstop hot water for families, long showers, and daily routines
  • Lower Energy Bills – Save money by heating water only when needed
  • Space Saving – Free up space with a wall-mounted tankless system
  • Longevity – Engineered to outlast standard water heaters by nearly double
  • Clean, Fresh Water – No standing water or sediment buildup sitting in a tank
  • Environmentally Conscious – Eco-friendly technology that’s better for your home and the environment

Whether your current water heater is leaking, slow to heat, or simply outdated, our expert team can install a modern tankless system that fits your home perfectly.

If a standard tank-style water heater is what you need, we’ve got you covered.

Current Special Offers

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FREE Water Pressure Check

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$50 Off Plumbing Repairs Over $500

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$25 OFF Leak Detection

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Water Heater Repair and Replacement

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$50 OFF Water Heater Installation/Replacement

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Water Heater Repair and Replacement

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$75 OFF Tankless Water Heater Installation

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Expires: Jan 21, 2026

Call us now at (xxx) xxx-xxxx now to request your Copper Repipe in Fountain Valley, California. We'll be there to help quickly!

Find out when to replace your old water heater and why it pays off right away

It may be time to replace or upgrade your tankless water heater if you’re experiencing.

  • Hot water that turns cold mid-shower or changes temperature suddenly
  • Visible water pooling near your water heater
  • Aging tank model past its recommended lifespan
  • Your water heater can’t keep up with your household demand
  • Rising gas or electric bills
  • Planning a remodel or new addition that increases hot water demand
  • You want to replace your old tank model with an energy-saving tankless system

Our installation experts will inspect your plumbing, gas, and venting systems to ensure a safe and code-compliant installation.

We’ll guide you in selecting the perfect system to match your home’s size and demand.

After installation, we test every connection, calibrate the unit, and show you how to operate it for optimal performance.

From now on, you’ll have consistent hot water whenever you need it, with zero stress or wasted energy.

Frequently Asked Questions

[su_spoiler title='What brands do you install' open='no' style='fancy']

We service and replace most major brands – Navien, Noritz, Rinnai, Takagi, Rheem, AO Smith. We recommend models based on your home, water quality, and budget.

[/su_spoiler][su_spoiler title='Do you replace tank models with tankless' open='no' style='fancy']

Yes. We convert from tank to tankless, upgrade gas lines if required, add proper venting, and handle permits and haul away.

[/su_spoiler][su_spoiler title='Do you offer water treatment to protect my new unit' open='no' style='fancy']

Yes. Hard water is common in Orange County. We can add a scale reduction filter or softener to extend the life of your heat exchanger and maintain efficiency.

[/su_spoiler][su_spoiler title='What warranties do I get' open='no' style='fancy']

Manufacturer warranties vary by model. We register your unit and include our written workmanship warranty plus the No Cold Shower Guarantee.

[/su_spoiler][su_spoiler title='How much does tankless replacement cost' open='no' style='fancy']

Price depends on brand, size, venting, gas line work, and water treatment. We give firm, written options before any work begins, and financing is available.

[/su_spoiler][su_spoiler title='What size tankless do I need' open='no' style='fancy']

We calculate flow rate and temperature rise based on your fixtures and usage patterns. The goal is simple – hot showers and laundry at the same time without dropouts.

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Our Hot Water Guarantee

Your tankless water heater will be installed or replaced to the highest standard, tested for perfect operation, and guaranteed to function properly. If your new system fails due to our workmanship, we will return promptly, fix the issue, and cover all labor and materials at our expense during our workmanship warranty period. No cold showers, no hidden costs - just reliable, efficient hot water you can trust.

Call us now at (xxx) xxx-xxxx now to request your Copper Repipe in Fountain Valley, California. We'll be there to help quickly!

CUSTOMER RATINGS & REVIEWS

Don't take our word for it. Here are some recent reviews shared by satisfied customers. After we help you, we'd love to get a rating and review from you and add you to this list!

Chårlene Låsiter

Chårlene Låsiter

Garden Grove, CA

"Eric is a very hard worker. He's honest, efficient and clean. Most importantly, he handled our plumbing projects and made sure the job is done right. GREAT MAN!"

john_kirker

John Kirker

Tustin, CA

"I highly recommend IgnitionLabs Plumbing Sites as my top rated choice. We punctured a pipe during a remodel. E&Y was out in a jiffy to solve the problem so that we could continue our project."

tyler_w

Tyler W.

Newport Beach, CA

"A pleasure to find a friendly professional that has your safety and well being in mind for the water heater.  Advises what needs attention and what can wait!"

How can we help you get the job done right?

We love helping our clients and we're here to help you with your plumbing needs, 24/7. We want to be there for all of your plumbing problems no matter what time it is! We know that everyone deserves peace of mind when they call someone in for work around their home or business property so don't hesitate any longer before picking up the phone and giving us a call - let's get started right away!