Tankless Water Heater Replacement
Your tankless water heater was supposed to make life easier. But now you’re stuck with cold showers, cranky mornings, and a growing sense of frustration. Whether it’s completely failed or just not keeping up anymore, you're left wondering what to do next—and how much of a headache it’s going to be.
At JG Water Heaters, Filtration and Plumbing, we understand how disruptive this is. You need answers, not pressure; solutions, not sales tactics. We guide San Diego homeowners through tankless water heater replacement with clear options, honest advice, and fast, expert service, so you can stop stressing and get your home back on track.

Don’t Let Budget Hold You Back
Get your hot water back today and pay over time with monthly plans that work for real-life budgets.

Why Homeowners Trust JG Water Heaters, Filtration and Plumbing
When something as essential as your tankless water heater fails, you need a company that shows up when they say they will, explains things clearly, and stands behind their work. That’s what we do at JG Water Heaters, Filtration and Plumbing.
Here’s what sets us apart:
- Fast, Person-to-Person Service: When you call us, you get a real person—someone who listens, understands, and gets you scheduled fast. Many times, same-day.
- Honest Recommendations: We’ll never push a replacement you don’t need. If it can be fixed, we’ll tell you. If replacement makes more sense, we’ll explain why.
- Local Experts Who Care: We're not a big-box franchise. We're your San Diego neighbors—serving San Diego County communities with the kind of care you only get from a local team.
- Workmanship You Can Count On: Our licensed technicians do the job right the first time, and we back it with solid warranties and ongoing support.
- Straight Talk, Not Sales Talk: No jargon. No scare tactics. Just clear answers and solutions that make sense for your home and budget.
We’ve built our business on trust, referrals, and results—and we’re proud to be the company families call when they want the job done right.

Do I Need to Replace My Tankless Water Heater?
Tankless water heaters are built to last, but they wear down over time. If you're noticing changes in performance, rising energy bills, or longer waits for hot water, it's worth taking a closer look. Sometimes a simple fix will do. Other times, a full replacement is the smarter (and more cost-effective) choice:
- Inconsistent or no hot water
- Your unit is 15+ years old
- Frequent breakdowns or error codes
- Unusual noises or smells
- Rising energy bills or decreased efficiency
Not sure if tankless water heater replacement is the right call? We’ll inspect your unit, explain your options in plain English, and help you decide what makes the most sense.
Why Go Tankless (Again)?
If you're already used to a tankless system, you know the benefits; but a new unit can improve them even more!
- Endless hot water for your whole household
- Lower energy bills thanks to high-efficiency models
- Space-saving design that frees up your utility closet or garage
- Longer lifespan with proper installation and maintenance
- Cleaner water, when paired with a whole-home filtration system
Whether your current system was poorly installed or has simply aged out, we’ll upgrade you to a unit that fits your home, your budget, and your lifestyle.

The Right Fit for Your Home, Your Budget, and Your Hot Water Needs
Not every home is the same, and neither is every tankless water heater. JG Water Heaters, Filtration and Plumbing offers a range of reliable, high-performance systems to match your household’s size, water usage, and efficiency goals.
Whether you live in a cozy 1-bath starter home or a busy household with multiple bathrooms and back-to-back showers, we’ve got options that make sense. Not sure what you need? We’ll help you find the best replacement options; you’ll get clear pros and cons so you can choose what works best for your home and your family.
For Homes With 1–3 Bathrooms
Standard Unit
Efficient, budget-friendly, and ideal for smaller households with consistent hot water needs.
- Great for couples or small families
- Compact and reliable
- Energy-saving without overkill
Advanced Unit
Our advanced units go a step further, with built-in technology that improves comfort, speed, and efficiency—especially in larger homes.
- Built-in recirculating pump reduces wait time for hot water
- Intelligent buffer tank preheats water to anticipate use
- Optimized performance with less energy waste and better flow consistency
For Homes With 4+ Bathrooms
Standard Unit
Powerful and dependable, these systems are built to keep up with larger households.
- Supports multiple simultaneous showers
- Great upgrade from older tank systems
- Efficient operation for larger square footage
Advanced Unit
Top-tier units with premium features for comfort, control, and long-term savings.
- High flow rates and quick recovery
- Recirculation for instant hot water
- Integrated buffer tank with smart preheating
We Take the Stress Out of Tankless Water Heater Replacement
At JG Water Heaters, Filtration and Plumbing, we keep things simple, honest, and focused on getting your comfort back—fast. Here's how our tankless water heater replacement process works:
1. Call or Contact Us Online
When you reach out, you’ll talk to a real person from our local team. We listen to what’s going on and schedule a time that works for you. We respond same-day whenever possible because cold showers can't wait.
2. Free On-Site Assessment
One of our experienced technicians will come out, inspect your current system, and help you understand exactly what’s going on. Whether it’s a failing unit, poor installation, or hard water damage, we’ll show you what we see and what it means so you can make an informed decision without pressure.
3. Transparent, Upfront Pricing
We believe in clear, flat-rate pricing with no upsells or scare tactics. You'll get a straightforward quote that outlines what’s needed and why—so you can move forward with your tankless water heater replacement with confidence.
4. Expert Replacement Done Right
We’ll handle everything, from removing the old unit to installing the new one and getting it dialed in for your home’s needs. Our licensed, trained techs respect your home and your time, and we never cut corners.
5. Ongoing Support
We make sure everything’s working perfectly, now and down the line. After installation, we’ll follow up to confirm everything’s running smoothly. If you have questions later, just call—we’re here for you long after the job is done for repair and maintenance.
What Our Customers Say
Here are just a few of the great things our clients have said about us.
Excellent service with a level of honesty and integrity we have not experienced with other companies. Very impressed and grateful. When it DOES come time for us to replace our water heater, we will use JG.
Neighbor was having water heater installed, and we had been researching and getting bids/reviews. The installation Technician (Christian) gave us a bid, and told us they recommended, Bradford White. We asked how soon they could install a 50-gallon unit, and to our surprise he had one on his van. He installed the water heater, and replaced all ball valves for shut-offs. Very happy with the price, efficiency and quality of the work performed. Friendly and professional!
I called JG Water Heaters the morning after my 75 gallon gas water heater started leaking. Gregg came out right away and by 5pm his 3-man crew had installed a new tankless one along with all additional per-code gas line and new exhaust. They also changed out the old, faulty water pressure regulator that probably contributed to the leak. Great team. 120% great workmanship, supported by excellent leadership and infrastructure. Pretty perfect. Very highly recommended.
Get Back to Reliable Hot Water—Without the Runaround
At JG Water Heaters, Filtration and Plumbing, we know your time, comfort, and peace of mind matter. When your tankless system stops working, you don’t need sales pressure; you need honest answers and a team that shows up ready to help.
Whether you’re replacing an aging unit or upgrading to something more efficient, we make the process simple, transparent, and fast. From the first call to final follow-up, we’re here to guide you every step of the way.
Get in touch and let’s solve the problem today.