Tankless Water Heater Installation in Marietta, GA
Experience continuous hot water in your Marietta, GA home with a new tankless water heater. HGR Plumbing provides professional installation, ensuring comfort and efficiency.
- Same-Day Estimates Available
- Gas Line Upgrades Handled
- Factory-Trained Plumbers
- Reliable Local Plumbers
Switch to Tankless Hot Water in Marietta, GA.
We size the unit to your fixtures and incoming water temperature so you get consistent hot water year-round.
Quality Tankless Water Heater Installation for Homes in Marietta, GA
For reliable tankless water heater installation in Marietta, GA, trust HGR Plumbing. Our licensed plumbers make sure your new system is sized correctly and installed to all local plumbing codes, giving you years of efficient hot water.
Our expertise includes:
- Code-compliant electrical and water line connections.
- Precise sizing and model selection for your home.
- Condensing and non-condensing gas tankless units with PVC or stainless vent pipe

Additional Plumbing Installation Services in Marietta, GA
We install water heaters, pumps, lines, and fixtures across Marietta, GA with precision workmanship that meets every local code.

Customers
Why Choose HGR Plumbing for Tankless Water Heater Installation in Marietta, GA?
A tankless water heater only performs if it is sized, vented and supplied correctly. We do the math on flow rate, temperature rise and gas load before recommending a model.
- Scale Protection, Isolation valves and scale filters protect the heat exchanger from hard water.
- Energy Efficiency, Tankless units heat water only when needed, which can lower your utility bills compared to traditional storage tanks.
- Accurate Sizing, We match the unit's flow rate to your fixtures and incoming water temperatures.
Citywide Coverage
HGR Plumbing serves every neighborhood in Marietta and the surrounding communities for tankless water heater installation. Whether you are in the city center or on the outskirts, our team is ready to provide prompt and professional service.
Experienced Team
Every technician at HGR Plumbing is committed to ongoing education, staying current with advances in tankless technology and local plumbing codes. This training supports a safe, reliable and high-performing installation.
Safety-First Approach
Safety and code compliance come first on every tankless water heater installation we perform. Our plumbers carefully follow manufacturer guidelines and local Georgia plumbing codes, including proper venting, gas line and electrical connections.
Trusted Certified Marietta Plumbing Services Professionals
At HGR Plumbing, we take pride in providing certified plumbing services throughout Marietta, GA. Backed by leading industry credentials, our experienced plumbers combine technical skill with genuine customer care. Whether it is repair, installation, or maintenance, we follow strict safety and quality standards to deliver long-lasting results you can trust.
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PHCC Plumbing Contractor Recognition
Better Business Bureau (BBB) Accreditation
Angi Certified Pro
ISO 9001 Quality Management CertificationDependable Tankless Water Heater Installation Services in Marietta, GA
Commercial Tankless Water Heater Installation in Marietta
Businesses often have higher and more consistent hot water demands than homes. HGR Plumbing provides commercial tankless water heater installation, sizing systems to meet the needs of restaurants, salons or other commercial spaces. We understand the importance of minimal disruption to your operations during installation, ensuring a quick and professional setup in Marietta.

Gas Tankless Water Heater Installation in Marietta
For many homes in Marietta, gas tankless water heaters are a common choice due to their powerful heating and lower operating costs compared to electric models. Our licensed technicians handle all aspects of gas line connections, venting and combustion air requirements, so your system operates safely and efficiently. We work with leading brands like Rinnai and Noritz to provide high-performance, on-demand hot water.
Rinnai Tankless Water Heater Installation in Marietta, GA
Rinnai tankless water heaters are a popular choice for their reliability and long lifespan, making them a smart investment for homeowners across Marietta, GA. Our plumbers are factory-trained on Rinnai systems, ensuring a clean installation that follows all manufacturer specifications. We make sure gas line sizing, venting and water connections are correct so your Rinnai unit provides endless hot water efficiently for years.
Propane Tankless Water Heater Installation in Marietta
Many homes outside natural gas service areas depend on propane. HGR Plumbing is experienced in installing propane tankless water heaters, which require specific gas line sizing, regulator adjustments and venting. We make sure your propane system is installed correctly for maximum efficiency and safety, providing reliable hot water for your Marietta residence.
Rinnai, Navien and Noritz Installation in Marietta, GA
We install leading tankless brands including Rinnai, Navien, Noritz and Rheem. Rinnai offers a wide model range and strong parts support, while Navien condensing units often include built-in recirculation pumps. Noritz is recognized for durable commercial-grade heat exchangers. We help you compare models by flow rate, efficiency and warranty.
Electric Tankless Water Heater Installation in Marietta, GA
Electric tankless water heaters are an good option for homes in Marietta where natural gas is not available or preferred. These units are often smaller, simpler to vent and can be installed closer to the point of use. HGR Plumbing provides expert electrical sizing to make sure your home's panel can safely support a new electric tankless unit, offering consistent hot water without the need for a gas line.
Tankless vs Tank Cost Comparison in Marietta, GA
Tankless installation costs more upfront than a standard tank because of the unit price, gas line upgrades and venting changes. Over time, lower standby energy losses and a longer expected lifespan offset part of that cost. Tankless units often last 15 to 20 years with proper descaling, compared with about 8 to 12 years for many tanks in hard water areas. We give you a side-by-side quote so you can decide what suits your budget.

Hard Water Protection for Tankless Units in Marietta, GA
Calcium scale is the most common cause of tankless heater failure. Homes farther south often draw from deep limestone aquifers, so harder water and the occasional sulfur smell are common complaints there. Scale coats the heat exchanger, reducing efficiency and triggering error codes. We install isolation valves so the unit can be flushed with a vinegar or descaling solution once a year. A scale inhibitor cartridge or whole-home softener provides extra protection.
Tankless Water Heater Installers Near Me in Marietta, GA
Our local presence means faster response times and a team that understands the challenges and opportunities for tankless systems in Marietta. We are focused on bringing modern, efficient hot water to every home in our community.
If you are searching for tankless water heater installation near me, our local team can visit, measure and give you a firm quote. We check your gas meter, line size and venting options during the same visit. Many installs are scheduled within a few days.
HGR Plumbing at a Glance
- Fully licensed plumbing team covering Marietta, GA
- Same-day appointments and 24/7 emergency response
- Clear written estimates, no hidden fees
- 4.9-star rated by 357+ Georgia customers
Marietta Map
Marietta Information
- Population
- 62,769
- Area codes
- 770/404/678
- Service area
- Marietta and communities within 40 miles
- Nearby
- Smyrna, Sandy Springs, Roswell, Dunwoody
Installing a tankless water heater in Marietta, GA can significantly boost energy efficiency and provide endless hot water, a valuable upgrade for homes dealing with hard water and changing seasonal demand.
Expert Services
Trust our professionals for reliable HGR Plumbing solutions in Marietta, GA.
Our Specialized Plumbing Services in Marietta, GA
At HGR Plumbing, we provide a complete range of plumbing services across Marietta, GA. From leak detection to full system installations, our team ensures fast, precise, and affordable service for both residential and commercial properties. Explore our core services below:
How Our Tankless Water Heater Installation Process Works in Marietta, GA
Here is how we take your tankless project from the first call to hot water at the tap.
Request a Quote
Contact HGR Plumbing at (770) 470-3778 to schedule a free consultation. We will discuss your hot water needs and assess your home's specific requirements for a tankless system.
On-Site Assessment
Our experienced plumber will visit your Marietta home to evaluate your current setup, determine the best tankless model and provide a detailed, transparent estimate.
Professional Installation
Once approved, our licensed technicians will install your new tankless water heater, making sure all gas, water and vent connections are up to code and fully functional.
Frequently Asked Questions About Tankless Water Heater Installation in Marietta
The cost for tankless water heater installation in Marietta can range from $3,000 to $6,000, based on the unit type (gas or electric), brand, capacity and complexity of the installation, such as gas line upgrades or new venting. This price usually includes the unit and professional labor. We provide a detailed, no-obligation estimate after an on-site assessment.
Sizing a tankless water heater depends on your household's peak hot water demand, measured in gallons per minute (GPM), and the temperature rise needed. Our plumbers will assess the hot water fixtures in your home and review your usage patterns to recommend the appropriate GPM and BTU rating for your needs in Marietta.
While it may seem appealing, tankless water heater installation is complex and should only be performed by a licensed professional. It involves gas lines, high-voltage electricity, water connections and detailed venting systems, all of which require specialized knowledge and adherence to safety codes. Incorrect installation can be dangerous and cancel warranties.
Yes. Tankless water heaters are an excellent choice for Georgia homes. Their energy efficiency can help manage utility costs, especially during peak demand. The compact size is great for the smaller utility closets common in many houses, and the endless hot water suits busy families throughout the year, regardless of the climate.
Yes, gas tankless water heaters require specific venting materials and configurations different from traditional tank heaters. Many modern units use PVC or polypropylene for venting, and proper slope and termination are essential for safe and efficient operation. Electric units do not require venting.
We install leading tankless water heater brands known for their reliability and efficiency, including Rinnai, Navien, Noritz and Rheem. Our plumbers are trained and experienced with the particular requirements of each manufacturer to ensure strong performance.
No, we strongly advise against DIY tankless water heater installation. These systems involve complex connections for gas, water and electricity, along with specific venting requirements. Improper installation can lead to safety hazards, void warranties and costly repairs. Always hire a licensed professional.
Absolutely. When properly sized, a tankless water heater can provide an endless supply of hot water, even for large families. It is crucial to select a unit with a high enough GPM (gallons per minute) rating to meet your peak demand.
What People Are Saying About Our Plumbing Experts?

Patricia H.
We had a slab leak that two other companies could not find. HGR Plumbing located it in under an hour, explained our options, and the price matched the quote to the dollar.
Slab Leak Repair · Atlanta, GA
Daniel K.
A pipe burst at 11 pm and they actually answered. The plumber showed up within the hour, shut everything down, and had us back to normal the next morning. Could not ask for more.
Emergency Plumbing · Sandy Springs, GA
Emily R.
I called HGR Plumbing for plumbing repair, and the technician was fast, polite, and thorough. They explained the problem clearly and fixed it the same day. I will definitely hire them again. Highly recommended!
Plumbing Repair · Roswell, GA
James P.
Our commercial plumbing system had a leak under the sink, and HGR Plumbing handled it professionally. The plumbers arrived quickly and restored everything without disruption to our customers.
Commercial Plumbing · Atlanta, GA
Laura S.
I scheduled a water heater replacement, and the team made the process smooth and affordable. The new unit works perfectly, and they cleaned up after completing the job.
Water Heater Replacement · Atlanta, GA
Sofia M.
Two new toilets installed in one visit, no mess left behind, and the tech even adjusted a faucet he noticed was dripping. Fair pricing and really friendly.
Toilet Installation · Sandy Springs, GA













