Tankless Water Heater Installation & Repair in San Diego
Water heating technology has improved over the years, and tankless water heaters are now a popular choice in San Diego area homes. Since the water heaters do not have a tank, they are more compact and energy efficient that heat water on demand. Giving you the same endless supply of warm water without the bulk of a large storage tank.
- Less energy use (save money on your electric bill)
- Eco-friendly (can use up to 30% less energy)
- Smaller and more space efficient (no storage tanks taking up space)
- Longer life spans and reliability (20 to 30 year life span with regular service)
- Cleaner operation (no messy tanks to clean and manager)
At Discount Plumbing San Diego we install and repair all major tankless water heater systems. If you are looking to upgrade your water heating system or need an expert in tankless water heater repair, give us a call today or schedule a service appointment.
Hybrid vs. Tankless vs. Gas: What’s the Difference?
Most homeowners ask if it is worth it to upgrade to a tankless water heater, what are the benefits of upgrading, and why they should consider a different system for their home. Why not just stick with a traditional water heater? And how are they different?
Traditional (Gas)
These systems use either gas or electrics and store 30-50 gallons of preheated water in a tank and it is reheated throughout the day. They may have a lower upfront installation cost, but can be more expensive long term due to maintenance, life span, and higher energy costs.
- Lower initial cost compared to hybrid or tankless
- Familiar installation and quick recovery rate
- Larger footprint (requires tank storage)
- Less efficient and shorter lifespan (8–12 years)
- Burns natural gas — not as eco-friendly
Best for: Budget-conscious households or landlords looking for standard water heating solutions.
Tankless
Tankless do not have a large tank because they heat water on demand using electric or gas power. Since there is no tank to maintain, the system only uses energy at the time hot water is needed. They may have a higher upfront cost but can be more affordable long term because of lower monthly electric bills and longer product life.
- Hot water on demand (no tank needed)
- Space-saving, wall-mounted design
- Long lifespan (20+ years)
- More expensive installation (may require upgraded gas lines or electrical)
- Lower operating costs, but higher initial investment
Best for: Homes with high water usage or where space is limited and constant hot water is a must.
Quality Installation is Critical for Tankless Water Heaters
The key to getting the most out of a tankless water heating system is proper installation. Typically, these systems are a little more complicated to install than a traditional water heater. Tankless water heaters can sometimes require upgrades to electrical, gas, or ventilation systems. This is even more important for older homes in the San Diego area where 70% of homes sold are over 30 years old. Due to the complexity, most homeowners choose to a hire a professional plumber to handle their tankless water heater installation.
It is important to work with a licensed and experienced plumber who understands the requirements and needs of your project. At Discount Plumbing, we pride ourselves on being the best tankless water installers in the San Diego market. Our years of experience and the number of installs has helped us become specialists across all major tankless water heater models.
We help our customers make informed decisions with free on-site appointments and estimates that consider the key installation factors including:
- Reviewing existing water heater equipment
- Planning and site assessment
- Gas line installation
- Electric installation
- Water line installation
- Ventilation systems (as needed for gas equipment)
- Safety and compliance with local codes and manufacturing warranty
Water Heater Repair Services
Are you experiencing issues with your tankless water heater? We suggest contacting an experienced plumbing repair team to help diagnose the problem, make recommendations, and repair the unit.
Common issues for tankless water heaters include:
- Inconsistent or low water temperatures
- Low water pressure and mineral buildup
- Ignition failure from equipment, electrical, or gas line issues
- System overload and unable to keep up with the house demand
- System leaks
If you are having any of these common issues or others, we are happy to assist. After thousands of tankless water heater installations and regular service maintenance calls, we have the experience to quickly diagnose the problem. Our highly trained and experienced technicians at Discount Plumbing also have manufacturer specific accreditations to help us get the most from your equipment.
We service and repair all major tankless water heater brands, including:
- A.O. Smith
- Navien
- Noritz
- Reinnai
- Rheem
- RUUD
- Takagi
- And many others!
Tankless Water Heater Regular Maintenance Services
Getting the most out of your system requires routine maintenance. With a regular maintenance program, tankless water heaters can last well over 20 years. It is recommended to get your water heater serviced at least once per year. And if you are living in areas with hard water like San Diego, then it can be recommended to service twice per year on tankless hot water heater equipment.
Licensed and professional plumbers will conduct thorough inspections to ensure the equipment is operating correctly and efficiently. Our Discount Plumbing technicians use a thorough multi-point inspection listen, including:
- Inspecting and cleaning igniter and flame sensor
- System flushing, descaling, and cleaning water filters
- Cleaning fan and burner assembly units
- Cleaning air inlet thermistor
- Inspecting all vents and pipes for blockages
- Checking gas pressure, flow rate, and operating temperature
- Testing fire units
If our plumbing technicians find any issues, they diagnose the problem and share an honest recommendation for how to solve it.
Why Choose Discount Plumbing San Diego?
Whether you need a quick tankless water heater repair or are exploring a more energy efficient upgrade, we are ready to help. We perform full installations, regular maintenance, and repairs for all major water heater systems with care and integrity.
Fully licensed and insured plumbing professionals
Fast response and flexible appointment times
Honest recommendations based on the needs of your home
Quality workmanship backed by training and experience
Special Offers
$89
Tank Flush With Any Service
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$150
Off
Water Heater Installation
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Frequently Asked Questions
How does a tankless water heater work?
Unlike traditional models, tankless water heaters heat water on demand as it flows through the unit—so there’s no need for a storage tank. This means you’ll enjoy an endless supply of hot water without waiting for a tank to refill.
Are tankless water heaters more energy-efficient?
Yes. Tankless models can use up to 30% less energy compared to traditional tank systems, making them a more eco-friendly and cost-effective choice over time.
How long do tankless water heaters last?
With proper maintenance, a tankless water heater can last 20 to 30 years—significantly longer than most standard tank systems. Regular service helps ensure long-term performance and efficiency.
Can I install a tankless water heater in any home?
Most homes can be outfitted with a tankless system, but it’s important to have a professional assess your plumbing and electrical/gas setup first. We provide full evaluations and expert recommendations for seamless installation.
Do you repair and maintain all brands of tankless water heaters?
Yes, we service and repair all major brands and models of tankless water heaters. Whether you need a quick fix or routine maintenance, our trained technicians have the tools and experience to help.
Book Your Tankless Water Heater Repair or Installation Now
Don’t let a faulty water heater disrupt your home or your life. Call Discount Plumbing Rooter Inc. in San Diego today to book an appointment for a repair, regular maintenance, or a free quote for a new installation!
