Upgrading to a tankless water heater is a smart investment in your home’s comfort and efficiency. You’re not just buying an appliance; you’re choosing lower energy bills, an endless supply of hot water, and more usable space. But all those benefits hinge on one critical factor: a flawless installation. The performance and longevity of your new system are directly tied to the quality of the setup. An improper installation can void your warranty, reduce efficiency, and lead to costly repairs. That’s why finding a qualified tankless water heater installer is the most important step you can take to protect your investment and ensure you enjoy all the advantages for years to come.
Key Takeaways
- Leave Installation to a Certified Pro: A tankless water heater installation is more complex than a traditional one. Using a licensed professional with specific tankless experience is the only way to ensure safety, protect your warranty, and get the energy-efficient performance you’re paying for.
- Do Your Homework on Installers and Brands: Take the time to check credentials, read customer reviews, and compare a few detailed quotes to find a reliable expert. At the same time, research different brands to select a model with the right fuel type and efficiency rating for your home’s needs.
- Understand the Full Picture Beyond the Price Tag: The total investment includes the unit, labor, permits, and any necessary plumbing or electrical upgrades. A good installer will provide a transparent quote, and planning for routine maintenance from day one will keep your new heater running efficiently for years.
Why You Need a Pro for Tankless Water Heater Installation
I get it—the urge to tackle a home project yourself is strong. But when it comes to installing a tankless water heater, this is one job best left to a certified professional. Unlike a traditional tank heater, these systems are more complex, involving intricate gas or electrical lines, specific venting requirements, and precise water connections. A small mistake during installation doesn’t just lead to a cold shower; it can create serious safety hazards, like gas leaks or electrical faults. Professionals are trained to handle these complexities safely and are up-to-date on all local building codes, ensuring your installation is not only effective but also fully compliant.
Beyond safety, a professional installation is key to getting the performance you’re paying for. One of the biggest benefits of a tankless system is its energy efficiency, but you only achieve that if the unit is sized correctly for your home’s hot water demands. An improperly sized or installed unit can struggle to keep up, leading to lukewarm water and negating any potential energy savings. A pro will assess your household’s needs to recommend the right model and ensure every connection is perfect for peak performance. This prevents the costly repairs and potential safety hazards that often come with DIY attempts.
Finally, think of professional installation as insurance for your investment. A tankless water heater is a significant upgrade for your home, and most manufacturers’ warranties require installation by a licensed plumber. If something goes wrong with a unit you installed yourself, you could be on the hook for the full cost of repairs or replacement. Hiring a qualified expert from the start protects your warranty and gives you peace of mind that the job was done right. When you’re ready to make the switch, you can schedule service with a trusted team to ensure your new heater is installed perfectly.
How to Choose the Right Installer
Finding the right person for the job is just as important as picking the right tankless water heater. While it might be tempting to hire a general handyman or even your usual plumber, tankless systems have unique installation requirements for venting, gas lines, and electrical connections. An improper installation can lead to poor performance, void your warranty, or even create safety hazards. You need a professional who not only has plumbing experience but also specific expertise in tankless technology.
Taking the time to vet your installer will save you headaches and money down the road. A qualified pro will ensure your unit is sized correctly for your home’s needs, installed according to local codes, and running at peak efficiency from day one. Think of it as an investment in your home’s comfort and safety. A great installer provides peace of mind, knowing the work was done right. When you’re ready to get started, you can always schedule a service with our team of experienced technicians who specialize in these modern systems.
Check for Qualifications and Certifications
The first step in vetting an installer is to check their credentials. Look for a licensed and insured plumber who has completed manufacturer-specific training. This is a clear sign that they are committed to their craft and knowledgeable about the latest technology. Many top brands offer specialized training programs and certifications to ensure professionals know how to install their products correctly. Don’t be shy about asking a potential installer to show you their certifications—a true professional will be happy to share them. This simple check helps confirm they have the expertise to handle your installation safely and effectively.
Verify Their Experience with Tankless Heaters
General plumbing experience doesn’t always translate to tankless water heater expertise. These units are fundamentally different from traditional tank models, so you want someone who has hands-on experience. Ask installers how many tankless systems they’ve installed and which brands they work with most often. Companies like Navien produce high-efficiency units that require specific knowledge, and their training information shows just how detailed the installation process can be. An experienced installer will be familiar with the nuances of different models and can recommend the best one for your home’s unique needs, ensuring a smooth and successful setup.
Read Customer Reviews and Testimonials
Reviews from past customers offer an unfiltered look at an installer’s professionalism and quality of work. Check websites like Google, Yelp, and Angi to see what others are saying. Look for comments that mention the installer’s punctuality, communication, and cleanliness. Pay close attention to reviews that detail the performance of the water heater post-installation. This can help you sidestep installers who are known for making common water heater installation mistakes, like improper sizing or venting, which can lead to costly repairs and safety issues. A long list of happy customers is one of the best indicators of a reliable professional.
Ask About Warranties and Ongoing Support
A reputable installer will always stand behind their work. Before you commit, ask about the warranties they offer. There are typically two: a manufacturer’s warranty that covers the unit itself and a labor warranty from the installer that covers the installation work. Understanding the terms of both is essential. You should also inquire about ongoing support and maintenance plans. Knowing who to call if an issue arises provides valuable peace of mind. A professional who is transparent about warranties and offers continued support shows they are confident in their work and committed to your long-term satisfaction, which is crucial for a successful tankless water heater installation.
What to Expect on Installation Day
Knowing what happens during the installation can make the entire process feel much smoother. When you hire a professional, you’re not just paying for a new appliance; you’re paying for a seamless, safe, and correct setup from start to finish. A typical installation day is a well-orchestrated process designed to get your new tankless water heater running perfectly with minimal disruption to your home.
From the moment the technician arrives, they should follow a clear plan. This starts with a final walkthrough and assessment, followed by the careful removal of your old unit, the precise installation of the new one, and a thorough round of testing. Each step is crucial for the longevity and efficiency of your heater. Let’s walk through what a professional installation looks like, so you know you’re in good hands.
The Initial Home Assessment
Before any tools come out, your installer will perform a quick but thorough assessment of the installation site. This isn’t just a formality; it’s a critical step to confirm that everything is ready for your new unit. The technician will verify the sizing of the unit is appropriate for your home’s needs, check the ventilation path to ensure it meets safety codes, and inspect your existing plumbing and gas or electrical lines. This initial check helps prevent common installation mistakes and ensures your new heater will perform optimally from day one. It’s all about making sure the plan is solid before the work begins.
Removing the Old Water Heater
Once the assessment is complete, it’s time to say goodbye to your old water heater. A professional will handle this carefully to avoid any mess or damage. First, they’ll safely shut off the water, gas, and electrical connections to the old tank. Next, they’ll drain the tank completely using a hose. After it’s empty, they will disconnect all the lines and carefully move the bulky unit out of your home. A key benefit of hiring a pro is that they also manage the proper disposal of the old water heater, making sure it’s handled according to local regulations so you don’t have to.
Installing Your New Tankless Unit
This is where the real magic happens. Installing a tankless water heater is more complex than a traditional tank and involves several key steps. The technician will securely mount the new, compact unit on the wall. Then, they’ll connect the plumbing, which may require some new piping to fit the tankless model. They will also handle the gas or electrical work, which could involve upgrading your gas line or running a new electrical circuit to meet the unit’s power demands. Finally, they’ll install the venting system, which is essential for safely expelling exhaust. This is why you need an expert in trenchless pipe repair and other modern plumbing solutions.
Final Testing and Adjustments
With the new unit fully installed, the final step is to make sure everything works perfectly. The technician will turn the water, power, and gas back on and fire up the heater for the first time. They will run hot water at various faucets throughout your home to check for consistent temperature and pressure, making sure there are no leaks in the new connections. They’ll make any necessary adjustments to the settings and ensure the entire system complies with local building codes. Before they leave, they’ll clean up the workspace and walk you through how to operate and maintain your new heater. When you’re ready for a professional installation, you can schedule service with our team.
A Quick Look at Top Tankless Heater Brands
Once you’ve decided to go tankless, the next step is choosing a brand. With so many great options on the market, it can be tough to know where to start. Each manufacturer has its own strengths, from space-saving designs to top-tier energy efficiency. Think of this as a starting point for your research. We’ve worked with all of these brands and can help you select the perfect model for your home’s needs when you schedule a service call.
Rinnai
If you’re looking to reclaim space in your garage or utility closet, Rinnai is a fantastic choice. This brand is well-known for its compact and efficient designs. In fact, Rinnai tankless water heaters are celebrated for their remarkable space efficiency, often using about 80% less wall space than the bulky tank models you might be used to. This makes them a go-to for homeowners who want to maximize every square foot of their home without sacrificing performance. Their reputation for reliability and a steady supply of hot water makes them a popular pick for families of all sizes.
Navien
For homeowners focused on long-term savings and environmental impact, Navien is a leader in the field. This brand consistently pushes the boundaries of green technology. Navien’s tankless water heaters feature some of the industry’s best efficiency ratings, which can translate into using about 40% less energy than a standard tank heater. Over the life of the unit, that efficiency adds up to significant savings on your utility bills. They are a smart investment for anyone who wants top-tier performance while reducing their home’s energy consumption.
Noritz
Noritz has built a strong reputation for its commitment to innovation and energy-conscious engineering. They offer a diverse lineup of models, ensuring there’s a fit for nearly any household demand, from a small condo to a large family home. Noritz tankless water heaters are designed to deliver dependable hot water on demand while keeping energy use to a minimum. The brand is a solid, all-around choice that balances advanced technology with user-friendly operation, making it a trusted name among both homeowners and professional installers.
Bosch
A household name known for quality engineering, Bosch brings its expertise to the world of tankless water heaters. Their units are recognized for being both highly efficient and impressively compact, making them a versatile option for residential and commercial properties alike. Bosch water heaters are engineered to provide instant hot water, giving you the convenience you expect from a tankless system along with tangible energy savings. If you’re looking for a reliable product from a brand with a long history of excellence, Bosch is definitely worth considering.
Rheem
As a global leader in water heating, Rheem is a name you can trust. The company ranks as a top manufacturer of high-quality, sustainable, and innovative water heaters, and their tankless models are no exception. Their products are designed to meet the diverse needs of both residential and commercial customers, so whether you’re outfitting your home or a business, they likely have a solution that fits. Their commitment to quality and a vast product line make them a dominant force in the industry and a reliable choice for any installation project.
A.O. Smith
A.O. Smith is another industry giant with a strong focus on reliability and advanced technology. They are so committed to quality that they even offer extensive online training and certifications on their products through A.O. Smith University. Their tankless water heaters are known for their durable construction and dependable performance, incorporating modern features that ensure you get hot water efficiently and consistently. For homeowners who value a brand that invests heavily in product knowledge and technological advancement, A.O. Smith is a top contender.
What Does Tankless Water Heater Installation Cost?
Let’s talk about the budget. The total cost of installing a tankless water heater isn’t just the price tag on the unit itself. It’s a combination of three main things: the heater, the professional labor to install it, and any extra parts or modifications your home might need. Because every home’s plumbing and electrical setup is unique, the final price can vary quite a bit. A straightforward replacement will cost less than a complex installation that requires new gas lines or significant plumbing changes.
Think of it as an investment in your home’s efficiency and comfort. While the upfront cost can be higher than a traditional tank heater, the long-term benefits—like lower energy bills and endless hot water—often make it a smart financial move. The best way to get a clear picture of what it will cost for your specific situation is to have a professional assess your home and provide a detailed quote. This ensures you understand all the factors at play and can avoid any surprises down the road. When you’re ready, you can schedule a service call with our team for a personalized estimate.
The Cost of the Unit
The first piece of the puzzle is the tankless water heater itself. The price for the unit alone can range from a few hundred to several thousand dollars. This wide range comes down to a few key factors. Brand names like Rinnai or Navien often have different price points, but the biggest drivers are size and fuel type. “Size” for a tankless heater is measured in gallons per minute (GPM), which tells you how much hot water it can deliver at once. A small apartment might only need a low-GPM unit, while a large house with multiple bathrooms will require a more powerful—and more expensive—model to keep up with demand.
Labor and Installation Fees
Once you’ve chosen your heater, the next cost is the professional installation. On average, you can expect labor fees to be several hundred dollars, but this is highly dependent on the complexity of the job. If you’re simply swapping an old tankless unit for a new one in the same spot, the work is relatively simple. However, if you’re transitioning from a traditional tank heater, the job gets more involved. Your installer may need to run new ventilation, upgrade gas or electrical lines, and reconfigure your plumbing. This is why hiring an experienced, licensed plumber is so important—they have the skills to handle these modifications safely and correctly, ensuring your new heater works perfectly from day one.
Potential Additional Costs
Beyond the unit and standard labor, a few other costs can pop up. Your city or county will likely require a permit for the installation, which comes with a fee. Depending on your plumbing system and local codes, you might also need an expansion tank. If you want to move your water heater to a new location—say, from the basement to a closet—that will add to the labor costs. A professional installer should always walk you through these potential expenses in your initial quote, so you have a complete financial picture before any work begins. Sometimes, an upgrade can also uncover older issues, like aging pipes that might need a trenchless pipe repair to prevent future problems.
Common Mistakes to Avoid When Hiring an Installer
Choosing the right person to install your tankless water heater is just as important as picking the right unit. A great installation means years of reliable hot water, while a poor one can lead to headaches and surprise costs. To make sure you get it right the first time, let’s walk through a few common missteps that are easy to sidestep with a little bit of planning.
Skipping the Credentials Check
This one might seem obvious, but it’s a critical step that’s surprisingly easy to overlook when you’re in a hurry. Before you hire anyone, confirm they have the proper licenses and insurance. A qualified professional will be familiar with local building codes and regulations, ensuring your installation is not only effective but also safe and compliant. This is a standard part of any professional plumbing work, from residential drain cleaning services to complex installations. Think of it as your first line of defense against shoddy work. A true pro will have no problem providing their credentials, so don’t be shy about asking.
Underestimating Tankless-Specific Experience
Not all plumbing experience is created equal. Tankless water heaters are sophisticated pieces of equipment that require different installation techniques than traditional tank models. An installer needs specific knowledge about proper unit sizing, gas line requirements, and complex venting configurations to ensure your system runs efficiently. It’s similar to how specialized jobs like trenchless pipe repair require unique skills and equipment. Hiring a plumber who primarily works with old-school tanks can lead to poor performance or even system failure. When you’re vetting installers, ask them directly about their experience with tankless technology and the specific brand you’re considering.
Only Getting One Quote
It’s tempting to go with the first installer you talk to, especially if the quote seems reasonable. However, you should always get at least two or three estimates before making a decision. Comparing quotes isn’t just about finding the lowest price—it’s about understanding the value you’re getting. A detailed quote will break down the costs for the unit, labor, and any additional materials. Seeing a few different estimates helps you spot what a fair market rate is and identify any installers who might be cutting corners. When you’re ready to get a comprehensive and transparent estimate, feel free to schedule service with our team.
Ignoring the Fine Print on Warranties
Your new tankless water heater comes with a manufacturer’s warranty, but that warranty often has strings attached. Many homeowners don’t realize that an improper installation can actually void it, leaving them on the hook for expensive repairs. Before work begins, take a moment to understand the warranty requirements. Ask your potential installer how their work aligns with the manufacturer’s specifications. A reputable professional will also offer a warranty on their own labor, giving you an extra layer of protection for everything from a new installation to a residential sewer pipe repair. Clarifying these details upfront can save you from major headaches down the road.
How to Prepare for Your Installation
Getting a new tankless water heater is exciting, and a little bit of prep work can make the installation process go off without a hitch. Before your installer arrives, taking some time to understand your options and needs will ensure you get the perfect unit for your home. This isn’t about doing the plumber’s job for them, but about being an informed homeowner. When you know what to expect, you can ask the right questions and feel confident in your investment. From understanding local rules to planning for future care, here’s what you can do to get ready for installation day.
Know Your Local Codes and Permit Needs
Every city has its own set of rules for plumbing work, and water heater installations are no exception. These local codes cover everything from proper ventilation and sizing to seismic strapping, which is especially important here in Southern California. Following these regulations is non-negotiable for safety and for your system to function correctly. While any reputable, licensed plumber will handle pulling the necessary permits and ensuring the work is up to code, it’s smart for you to be aware that these requirements exist. This knowledge helps you understand the scope of the project and why a professional installation is so critical for a safe and reliable outcome.
Compare Energy Efficiency Ratings
One of the biggest perks of going tankless is the energy savings, and that all comes down to the unit’s efficiency rating. Look for the Uniform Energy Factor (UEF) on any model you’re considering—the higher the number, the more efficient the heater. For example, some top brands offer models with UEF ratings as high as 0.97, which can mean using up to 40% less energy than a traditional tank heater. A higher initial cost for a more efficient unit often pays for itself over time through lower utility bills. If you’re unsure which rating is right for your home, you can always schedule service with a professional to get a personalized recommendation.
Choose the Right Fuel Type
Tankless water heaters primarily run on either natural gas or electricity, and the right choice for you depends on your home’s setup and your family’s hot water demands. Gas models typically offer a higher flow rate, making them great for larger households, but they require a gas line and proper ventilation. Electric models are often more compact and easier to install if you don’t have existing gas lines, but they may not be able to keep up with very high demand. Both types work by heating water on demand as it flows through the unit, giving you that endless supply of hot water. Your installer can help you weigh the pros and cons and see if any new lines, like those installed with trenchless pipe repair, are needed.
Plan for Routine Maintenance
Your relationship with your tankless water heater doesn’t end after installation. To keep it running efficiently for years, you need a solid maintenance plan. Overlooking this step can lead to serious problems and expensive repairs down the road. The most important task is periodic descaling, which involves flushing the unit to remove mineral buildup from hard water—a common issue in our area. This simple process protects the internal components and maintains energy efficiency. Think of it like regular oil changes for your car. Setting up a yearly check-up, similar to how you might schedule residential drain cleaning services, will ensure your investment continues to pay off in performance and longevity.
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Frequently Asked Questions
Is a tankless water heater really worth the higher upfront cost? It’s true that the initial investment is higher than a traditional tank, but it’s best to look at the long-term value. Tankless heaters can last nearly twice as long as tank models and are significantly more energy-efficient, which translates to real savings on your monthly utility bills. You also get the benefit of endless hot water on demand. For many homeowners, the combination of lower operating costs, a longer lifespan, and improved convenience makes it a very smart investment.
How do I know what size tankless heater my home needs? Sizing a tankless unit is a job for a professional, as it’s more complex than just picking a tank gallon capacity. An installer will calculate the right size by determining your household’s peak hot water demand, measured in gallons per minute (GPM). They’ll consider how many faucets and appliances you might run simultaneously and the temperature rise needed to get your water hot, ensuring the unit they recommend can keep up without any issues.
How long does a typical installation take? The timeline really depends on the scope of the work. If you’re simply replacing an old tankless unit with a new one, the job can often be completed in just a few hours. However, if you are switching from a traditional tank heater, the process is more involved and can take a full day. This is because it may require new plumbing, venting, and gas or electrical lines. Your installer will give you a clear time estimate after assessing your home.
Will I need to upgrade my home’s gas or electrical lines for a tankless unit? It’s a strong possibility. Tankless water heaters heat water instantly, which requires a lot of energy in a short burst. Gas models often need a larger diameter gas line to supply enough fuel, while electric models typically require a dedicated high-amperage circuit. A professional installer will inspect your current system during the initial consultation to determine exactly what, if any, upgrades are needed for a safe and effective installation.
How often does my new tankless water heater need maintenance? To keep your tankless heater running at peak efficiency and extend its life, we recommend having it professionally serviced once a year. The most important maintenance task is descaling, which flushes out the mineral buildup that naturally occurs from our hard water here in Southern California. This simple annual check-up protects the internal components from damage and ensures you continue to get the energy savings and performance you expect.