Tankless Water Heaters

Water Heater Replacement

Upgrade to Endless Hot Water with a Tankless Water Heater

Enjoy an endless supply of hot water, save on energy bills, and reclaim valuable space in your home. At TD Lambert Plumbing, we specialize in the expert installation and maintenance of modern tankless water heater systems. With over 20 years of experience led by a licensed Master Plumber, we provide top-tier service to ensure your home benefits from the latest in water heating technology.

Our Tankless Water Heater Services

We offer a full range of services to help you make the switch to a tankless water heater or keep your current system running at peak performance. Our team is equipped to handle everything from initial consultation to ongoing maintenance, delivering a solution tailored to your home's specific needs.

Tankless Water Heater Installation & Replacement

Thinking about upgrading? Our experts will guide you through the process of selecting the right tankless water heater for your household size and hot water demands. We manage the entire installation, including the safe removal of your old unit and any necessary plumbing or venting adjustments, ensuring your new system is set up for optimal efficiency and longevity.

Tankless Water Heater Maintenance & Repair

 To keep your on-demand water heater in top condition, regular maintenance is key. We offer comprehensive tune-ups and inspections to prevent scale buildup and maintain efficiency. If you experience any issues, our skilled technicians can quickly diagnose and repair your system to restore your hot water supply.

How Much Do Tankless Water Heaters Cost?

The cost of a tankless water heater, including installation, typically ranges from $4,500 to $6,000, though it can be higher depending on your needs and home setup.


Unit Costs by Type

Natural Gas:  $4,500–$6,000 for the unit

Condensing Gas:  $4,500–$6,000 for the unit



Installation & Additional Factors:

  • Labor: Professional installation cost is based on the complexity of the job.
  • Venting Upgrades: Switching from a tank-style system may require new venting, which can add additional cost.
  • Materials: Extra parts like pipes, valves, or filtration can increase cost if needed.
  • Location: Installing the unit in hard-to-reach places (attics, basements, etc.) may increase labor expenses.


While tankless water heaters tend to cost more upfront, they often offer energy savings and a longer lifespan—making them a worthwhile investment for many homeowners.

Why Go Tankless? The Benefits for Your Home

Switching to a tankless water heater offers significant advantages over traditional tank-based systems. It's a smart investment that improves both comfort and efficiency.


  • Endless Hot Water: Tankless systems heat water on demand, so you never have to worry about running out during back-to-back showers or while doing laundry.
  • Energy Efficiency: By heating water only when you need it, tankless units can be on average up to 34% more energy-efficient than traditional storage tank heaters, leading to lower utility bills.
  • Space-Saving Design: These compact units are wall-mounted, freeing up valuable floor space that was once occupied by a bulky water tank.
  • Longer Lifespan: Tankless water heaters can last 20 years or more—nearly double the lifespan of a conventional water heater offering a better long-term return on your investment.


Why Choose TD Lambert Plumbing?

Your home’s plumbing deserves the best. When you partner with us for your tankless water heater needs, you get a team dedicated to quality, reliability, and customer satisfaction.


  • Licensed Expertise: All work is overseen by Tony Lambert Jr., a licensed Master Plumber with deep experience in modern plumbing solutions.
  • Quality Workmanship: We are committed to meticulous installations and repairs, ensuring your system performs flawlessly and safely.
  • Customer-First Approach: We provide transparent pricing, clear communication, and professional service designed around your needs and schedule.
  • Local & Reliable: We are proud to serve our local communities with prompt and dependable service you can count on.

Frequently Asked Questions about Tankless Water Heaters

  • What size tankless water heater do I need?

    The right size depends on your home's peak hot water demand. We'll help you calculate this based on the number of fixtures and appliances you might use simultaneously to ensure you select a unit that meets your needs without interruption.


  • Is a tankless water heater more expensive?

    While the upfront installation cost for a tankless water heater is typically higher than a traditional tank model, the long-term savings on energy bills and longer lifespan often make it a more economical choice over time.


  • Do tankless water heaters require maintenance?

    Yes, to ensure longevity and efficiency, it's recommended to have your tankless system professionally flushed and inspected annually. This prevents mineral buildup that can affect performance.


  • Can my home accommodate a tankless water heater?

    Most homes can be retrofitted for a tankless system. Some installations may require minor upgrades to your gas line or electrical system, which our team is fully qualified to assess and handle.


See What Our Customers Are Saying

“Very Prompt”

I had tony come out cause my water heater was leaking. He was very prompt on coming out and very professional. The work done was very affordable and reasonable. I am very satisfied with how neat he was and his professional. I am definitely going to call him back for any plumbing issues I have in the future.

— E. Marroquin

“Quick, clean, and professional.”

Tony came to my rescue. Of course I was nervous about having to deal with such an issue. He took his time answered any and all of my questions (there were many) patiently. He was on time and completed the job in a timely manner and cleaned up after himself and was respectful of my home. I was able to get back to life as usual. Thank you Tony for a job very well done! I would definitely recommend TD Lambert plumbing to my family and friends!

— N. Pellegrini

“Exceptional Service!”

I have never been happier. My water heater started malfunctioning and I made one call and Tony walked me through what I needed to do calmly because I thought it was about to explode. He came promptly with all supplies, exceptional service and the most important thing honesty. I was educated on the parts of my water heater, care and maintenance. He explained what he was doing without hesitation and the rationale behind the why’s and what’s. Hands down this company is the best! I will utilize this company going forward and I highly recommend this company if you want great prices, exceptional work and the best customer service!

— M. Rash

Proudly Serving the Greater Atlanta Area

We provide expert tankless water heater services to homeowners in Austell, Hiram, Mableton, Douglasville, Smyrna, Marietta, Dallas, Kennesaw, Powder Springs, Sandy Springs, Buckhead, and Roswell.  Don't see your city listed?  Give us a call!


Ready to experience the benefits of on-demand hot water? Get a Free Quote