Tankless Water Heater Installation & Repair in Lawrenceville, GA

Endless hot water, lower energy bills, and more space

Installed and repaired by trusted Lawrenceville technicians.

Running out of hot water mid-shower is not just an inconvenience, it is a sign your system cannot keep up anymore. Rapid Response Plumbing installs and repairs tankless water heaters for homes throughout Lawrenceville, giving you an endless supply of hot water without the bulky tank. Ready to upgrade or fix what is not working? Schedule your free estimate below.

  • Family‑owned and locally‑operated

  • Licensed & Insured

  • Free installation / replacement estimates

Never Run Out of Hot Water Again

Water softeners remove the calcium and magnesium minerals that make water hard, protecting your pipes, fixtures, and appliances Tankless water heaters heat water on demand instead of storing it in a tank, so you get a continuous supply of hot water without waiting for a tank to reheat between uses. They also take up a fraction of the space of a traditional tank, which is a big draw for homeowners tight on room in a utility closet or garage.

Tankless units come in both gas and electric models, and the right choice depends on your home’s existing utility setup and how much hot water your household actually uses. A larger household running multiple showers and appliances at once typically needs a higher-capacity unit than a smaller household, which is part of why correct sizing matters as much as the installation itself.

Most homeowners look into tankless installation when their traditional water heater fails or when they are simply tired of running out of hot water. If you already have a tankless system, a handful of issues tend to come up over time:

  • Water that runs lukewarm instead of hot
  • An error code displayed on the unit
  • Delayed hot water reaching the faucet
  • Reduced flow from mineral buildup inside the unit
  • A pilot light that will not stay lit on gas units

Rapid Response Plumbing installs and repairs tankless water heaters throughout Lawrenceville, whether you are replacing a failing tank-style unit or getting an existing tankless system serviced. Our technicians size the unit to your household’s hot water demand and walk you through the pricing before any work begins, so you always know what to expect.

Not sure if tankless is right for your home? Call 770-589-0977 to talk with a licensed technician or book online today to request a free estimate.

Tankless water heater installation repair in lawrenceville

Pricing

How much does tankless water heater installation and repair cost in Lawrenceville?

Tankless Water Heater Installation Cost

$6,200 Our Average
$5,200 Low
$7,300 High

Tankless Water Heater Repair Cost

$1,200 Our Average
$400 Low
$2,300 High

Price factors to consider for your tankless water heater:

Tankless water heater pricing swings more than people expect, largely because unit size and fuel type make a bigger difference than with a standard tank. A few factors typically shape the final number:

  • Gas versus electric unit type
  • Household hot water demand and unit capacity
  • Venting and gas line modifications needed
  • Condition of existing plumbing and electrical connections
  • Whether the job is a repair or a full replacement

Curious what tankless installation or repair would run for your home?

Our technicians can do a much better job assessing exactly what it will take for us to install or repair your tankless water heater. Call us at 770-589-0977 or book online to schedule a FREE in-house estimate today.

Flexible Financing Available

Don't Let Cost Stop You From Fixing It

Big plumbing repairs shouldn’t have to wait because of budget concerns. Rapid Response Plumbing offers flexible financing through GoodLeap — so you can get the work done now and pay over time with manageable monthly payments.

Learn more about financing options →

Our Process

How we perform tankless water heater installation and repair in Lawrenceville

  1. Assessing your hot water needs

    We look at how many bathrooms and appliances run off hot water at once, along with your household size, to figure out what capacity your home actually needs.

  2. Choosing the right unit

    Based on your gas or electric setup and hot water demand, we recommend a specific unit rather than a generic recommendation, and explain the reasoning in plain language.

  3. Clear, written estimate

    Before any work begins, you get a straightforward price for the job. No surprise charges once the work is underway.

  4. Installation or repair

    Our licensed technicians handle the installation or repair, including any venting, gas line, or electrical work the unit requires.

  5. Final testing and walkthrough

    Once the work is done, we test water temperature and flow, and walk you through basic maintenance like annual flushing so the unit keeps performing well.

Rooted in Family. Driven by Care.

Experience the Rapid Response Difference

Serving the Community We Love.

This isn’t just where we work—it’s home. We proudly invest our time and resources into local organizations, families, and community programs because we believe strong communities are built through support, connection, and showing up for one another.

Service with Purpose.

We believe the work we do matters. Every home we step into is an opportunity to show kindness, integrity, and compassion—putting our faith into action through the way we care for our community.

Over 30 Years of Trusted Experience.

With more than three decades of hands-on knowledge, our team brings proven skill and dependable craftsmanship to every job. When you call us, you’re calling on a legacy of service built on consistency, trust, and real expertise.

Family-Owned. Family Values.

Being family-owned means we treat every home like our own. We show up with respect, care, and a personal commitment to making sure your family is safe, comfortable, and taken care of—today and always.

Testimonial

Old Water Heater Failed, New Tankless Unit Running the Same Day

Problem: A Lawrenceville homeowner’s traditional water heater failed without warning, leaving the household without hot water. Rather than patch together a temporary fix, they decided it was time to switch to a tankless system, but were concerned about how long the installation would take and whether they would be without hot water for days while it got sorted out.

Solution: Technicians Mitchell and Ben installed a new tankless water heater the same day, working efficiently and keeping the space neat throughout the job. From start to finish, the homeowner was back up and running with hot water in four to five hours, and the new system performed even better than the one it replaced.

More Information

How Long Does a Tankless Water Heater Last?

A well-maintained tankless water heater typically lasts significantly longer than a traditional tank unit, which is one of the reasons homeowners consider the switch even when their current tank is still working. Traditional tanks tend to wear out from the inside as sediment builds up and the tank itself corrodes over time. Tankless units do not store water, which removes that particular failure point.

That said, tankless units are not maintenance-free. Mineral buildup inside the unit can reduce efficiency and shorten its lifespan if it is never addressed, especially in areas with harder water. Annual flushing helps clear that buildup and keeps the unit running the way it was designed to.

Fuel type also plays a role in longevity. Gas units tend to see more wear on components exposed to combustion, while electric units have fewer moving parts but depend on stable electrical service. Either way, a unit that is installed correctly and flushed on schedule is far more likely to reach the upper end of its expected lifespan than one that is neglected.

How long do tankless water heaters last

FAQs

Tankless Water Heater FAQs

Other Services

Other Services Related to Reverse Osmosis

Schedule Now

Ready to Upgrade Your Hot Water?

Whether your water heater just failed or you are planning ahead, our licensed technicians can walk you through whether tankless is the right fit and get it installed fast.

No matter the plumbing challenge, our professionals are up to the task. Call 770-589-0977 or book online today.

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