Tankless Water Heater Installation in Green Bay, WI
Enjoy continuous hot water with a new tankless water heater installed by HKV Plumbing in Green Bay, WI.
- Same-Day Estimates Available
- Gas Line Upgrades Included
- Energy-Saving Solutions
- Prompt, Reliable Installation
Get Endless Hot Water and Free Up Floor Space in Green Bay, WI.
Our skilled plumbers are ready to help you choose and install the right tankless water heater for your home.
Tankless Water Heater Installation in Green Bay, WI Sized for Your Household
For reliable tankless water heater installation in Green Bay, WI, trust HKV 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:
- Isolation valve kits and scale filters for hard water defense
- Seamless integration with existing plumbing systems.
- Condensing and non-condensing gas tankless units with PVC or stainless vent pipe

Additional Plumbing Installation Services in Green Bay, WI
We install water heaters, pumps, lines, and fixtures across Green Bay, WI with careful, permitted work that passes inspection the first time.

Customers
Why Choose HKV Plumbing for Tankless Water Heater Installation in Green Bay, WI?
Choosing the right plumbing partner for a significant upgrade like a tankless water heater is crucial for long-term satisfaction. HKV Plumbing brings years of experience to every installation, ensuring quality workmanship and reliable performance.
- Energy Efficiency, Tankless units heat water only when needed, which can lower your utility bills compared to traditional storage tanks.
- Longer Lifespan, Tankless water heaters typically last longer than conventional models, offering a better long-term investment.
- Scale Protection, Isolation valves and scale filters guard the heat exchanger from hard water.
Citywide Coverage
From bustling downtown blocks to quiet suburban streets, our team is equipped to provide quality tankless water heater installation across all of Green Bay. Your hot water comfort is our priority, close to home.
Experienced Team
Every technician at HKV 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
Tankless units must be vented correctly to remove combustion gases safely, and we follow manufacturer clearance and termination requirements. Condensing units get a proper condensate drain and neutralizer when needed.
Trusted Certified Green Bay Plumbing Services Professionals
At HKV Plumbing, we take pride in providing certified plumbing services throughout Green Bay, WI. 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 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 CertificationReliable Tankless Water Heater Installation Services in Green Bay, WI
Gas Tankless Water Heater Installation in Green Bay
For many homes in Green Bay, 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 dependable, on-demand hot water.

Residential Tankless System Upgrades in Green Bay
Upgrading your traditional hot water tank to a tankless system in Green Bay can noticeably improve efficiency and comfort. We assess your home's hot water demands, existing plumbing and utility connections to recommend the best tankless model for your household size and usage patterns. Our team manages the entire conversion, including the safe removal and disposal of your old water heater, limiting disruption to your daily routine.
Rinnai Tankless Water Heater Installation in Green Bay, WI
Rinnai tankless water heaters are a top choice for their reliability and long lifespan, making them a smart investment for homeowners across Green Bay, WI. Our plumbers are factory-trained on Rinnai systems, delivering 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.
Residential Tankless Water Heater Installation in Green Bay
HKV Plumbing specializes in installing tankless water heaters for residential properties. We assess your home's hot water demands, family size and existing utility connections to recommend the most suitable unit, so you get the right capacity for your needs. Our installations are designed to be energy efficient, providing endless hot water while potentially lowering your monthly utility bills in Green Bay.
Rinnai, Navien and Noritz Installation in Green Bay, WI
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.
Tankless Water Heater Replacement in Green Bay, WI
If your old tankless unit is failing or you are upgrading from a traditional tank, HKV Plumbing offers seamless tankless water heater replacement. We carefully remove the old unit, make any necessary adjustments to plumbing and venting and install your new, more efficient model. Our goal is to make the transition as smooth as possible, keeping continuous hot water in your Green Bay, WI home.
Upgrading from Tank to Tankless in Green Bay, WI
Making the switch from a traditional tank water heater to a tankless system involves more than simply swapping units. It often requires changes to gas lines, electrical wiring and venting. HKV Plumbing manages all aspects of this conversion, making sure all upgrades meet current codes and your new tankless unit performs optimally, giving you a modern hot water solution in Green Bay, WI.

Navien Tankless Water Heater Installation in Green Bay
Navien is a leading brand known for its advanced condensing technology and strong energy efficiency. HKV Plumbing is skilled in the precise installation of Navien units in Green Bay homes, setting them up for maximum savings and comfort. These advanced systems require expert setup to work at their best, and our team is proficient in all Navien models.
Local Tankless Water Heater Installation in Green Bay, WI
If you are searching for tankless water heater installation near me, our local team can visit, measure and give you a written quote. We check your gas meter, line size and venting options during the same visit. Many installs are scheduled in just a few days.
When you search for 'tankless water heater installation near me' in Green Bay, WI, HKV Plumbing is your reliable local choice. We know the local plumbing and building codes well, so every installation is done right the first time.
HKV Plumbing at a Glance
- Licensed and insured plumbers serving Green Bay, WI
- 24/7 emergency service with same-day scheduling
- Upfront, flat-rate pricing before work begins
- 4.8-star rated by 448+ Wisconsin customers
Green Bay Map
Green Bay Information
- Population
- 105,744
- Area codes
- 920/414/608
- Service area
- Green Bay and communities within 40 miles
- Nearby
- Appleton, Oshkosh, Sheboygan, Wausau
Installing a tankless water heater in Green Bay, WI is a smart investment through warm and chilly seasons alike, delivering consistent hot water without the energy waste of heating a large tank all year.
Expert Services
Trust our professionals for reliable HKV Plumbing solutions in Green Bay, WI.
Our Specialized Plumbing Services in Green Bay, WI
At HKV Plumbing, we provide a complete range of plumbing services across Green Bay, WI. 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 Green Bay, WI
We aim for a smooth and professional installation of your new tankless water heater, with little disruption to your Green Bay home.
Request a Quote
Contact HKV Plumbing at (414) 432-4641 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 Green Bay home to evaluate your current setup, determine the best tankless model and provide a detailed, clear 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 Green Bay
The cost of tankless water heater installation in Green Bay usually ranges from $2,500 to $4,500, including the unit and labor. This can vary based on the model, fuel type (gas or electric) and any needed upgrades to your gas lines or electrical panel. We provide a detailed, upfront quote after an on-site assessment.
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 specific requirements of each manufacturer to ensure strong performance.
A standard tankless water heater installation, replacing an existing tank, typically takes 4 to 8 hours. If extensive plumbing or gas line changes are required, it may take a full day. Our team works efficiently to restore your hot water as quickly as possible.
Yes. Tankless water heaters are an excellent choice for Wisconsin 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.
Tankless units eliminate standby heat loss, which can lower water heating energy use. Savings vary based on household size and usage patterns.
We install Rinnai, Navien, Noritz and Rheem tankless water heaters. Each brand offers different features, efficiency levels and warranty terms.
With annual descaling, tankless units often last 15 to 20 years. Skipping maintenance in hard water areas can shorten that considerably.
A straight replacement takes four to six hours. Tank to tankless conversions with gas and venting changes usually take a full day.
What People Are Saying About Our Plumbing Experts?

James P.
Our commercial plumbing system had a leak under the sink, and HKV Plumbing handled it professionally. The plumbers arrived quickly and restored everything without disruption to our customers.
Commercial Plumbing · Oshkosh, WI
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 · Wausau, WI
Mark T.
When our office needed drain cleaning, HKV Plumbing provided quick, reliable service. The plumber arrived on time and made sure every drain flowed perfectly before leaving. Very satisfied.
Drain Cleaning · Appleton, WI
Emily R.
I called HKV 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 · Appleton, WI
Robert G.
The trenchless sewer replacement saved our front yard. They walked us through the camera inspection footage first so we knew exactly what we were paying for.
Sewer Line Replacement · Wauwatosa, WI
Patricia H.
We had a slab leak that two other companies could not find. HKV Plumbing located it in under an hour, explained our options, and the price matched the quote to the dollar.
Slab Leak Repair · Green Bay, WI













