Tankless Water Heater Installation in Bath, ME
BKN Plumbing installs gas and electric tankless water heaters in Bath, ME, sized to your household so hot water never quits mid-shower.
- Fast, Reliable Installation
- Trusted Local Plumbers
- Licensed & Insured
- Upfront Pricing
Get Your New Tankless Water Heater in Bath, ME.
Our licensed plumbers are ready to provide a precise and professional tankless water heater installation.
Professional Tankless Water Heater Installation for Homes in Bath, ME
BKN Plumbing specializes in professional tankless water heater installation for homeowners across Bath, ME. We help you move from traditional tank-style heaters to modern, energy-efficient tankless units that provide hot water on demand.
Our expertise includes:
- Condensing and non-condensing gas tankless units with PVC or stainless venting
- Expert sizing and venting for top performance.
- Installation of gas and electric tankless models.

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

Customers
Why Choose BKN Plumbing for Tankless Water Heater Installation in Bath, ME?
Choosing the right plumbing partner for a major upgrade like a tankless water heater is key for long-term satisfaction. BKN Plumbing brings years of experience to every installation, delivering quality workmanship and reliable performance.
- Energy Savings, Tankless units only heat water as needed, which can significantly reduce your energy bills compared to traditional tank heaters.
- Endless Hot Water, Never run out of hot water again, even with several showers or appliances running at once.
- Gas Done Right, Gas lines are upsized when needed so the heater never runs short of fuel.
Citywide Coverage
No matter where your home is in Bath, we can plan a tankless install that suits your layout and gas service. We also handle conversions from attic tanks to wall-mounted units.
Experienced Team
Our plumbers are trained on major tankless brands and understand how each handles venting, condensate and gas pressure. They configure settings and recirculation options on site.
Safety-First Approach
Safety and code compliance are top priorities on every tankless water heater installation we take on in Bath. Our plumbers carefully follow local Maine plumbing codes, from gas line connections to proper venting, preventing potential hazards.
Trusted Certified Bath Plumbing Services Professionals
At BKN Plumbing, we take pride in providing certified plumbing services throughout Bath, ME. 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 CertificationEfficient Tankless Water Heater Installation Services in Bath, ME
Navien Tankless Water Heater Installation in Bath
Navien is a leading brand known for its advanced condensing technology and strong energy efficiency. BKN Plumbing is skilled in the precise installation of Navien units in Bath homes, setting them up for maximum savings and comfort. These sophisticated systems require expert setup to work at their best, and our team is proficient in all Navien models.

Rinnai, Navien and Noritz Installation in Bath, ME
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.
Residential Tankless System Upgrades in Bath
Upgrading your traditional hot water tank to a tankless system in Bath 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, minimizing disruption to your daily routine.
Rinnai Tankless Water Heater Installation in Bath, ME
Rinnai tankless water heaters are a top choice for their reliability and long lifespan, making them a smart investment for homeowners across Bath, ME. 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 reliably for years.
Tank to Tankless Conversions in Bath
Converting from a tank requires more than swapping units. A 40 gallon tank heater uses roughly 40,000 BTU, while a whole-home tankless unit may need up to 199,000 BTU, so the gas line often needs to be upsized. Venting changes from a metal flue to PVC or stainless, and the unit moves to a wall location. We remove and haul away your old tank and patch the old flue penetration.
Tankless Water Heater Relocation in Bath
Sometimes the ideal spot for a tankless water heater is not where your old tank was located. For homeowners in Bath looking to free up space or improve access, BKN Plumbing offers professional tankless water heater relocation. This can involve rerouting gas or water lines and possibly electrical work, all handled with precision and to local codes by our experienced team.
Tankless vs Tank Cost Comparison in Bath, ME
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 fits your budget.

Commercial Tankless Water Heater Services in Bath, ME
Businesses in Bath benefit from the continuous hot water supply and compact design of commercial tankless water heaters. From restaurants to hair salons, we install robust systems designed to meet high-demand commercial needs. BKN Plumbing understands the requirements for commercial installations, including larger capacity units and commercial plumbing codes, so your business never runs short of hot water.
Local Tankless Water Heater Installation in Bath, ME
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.
Our local presence means faster response times and a team that understands the challenges and opportunities for tankless systems in Bath. We are committed to bringing modern, efficient hot water to every home in our community.
BKN Plumbing at a Glance
- Licensed and insured plumbers serving Bath, ME
- 24/7 emergency service with same-day scheduling
- Upfront, flat-rate pricing before work begins
- 4.8-star rated by 525+ Maine customers
Bath Map
Bath Information
- Population
- 8,844
- Area codes
- Local
- Service area
- Bath and communities within 40 miles
- Nearby
- Topsham, Brunswick, Gardiner, Yarmouth
Incoming water temperature shapes how a tankless unit performs in Bath, ME, and hard water makes proper installation with descaling valves essential for a long service life.
Expert Services
Trust our professionals for reliable BKN Plumbing solutions in Bath, ME.
Our Specialized Plumbing Services in Bath, ME
At BKN Plumbing, we provide a complete range of plumbing services across Bath, ME. 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 Bath, ME
Our tankless water heater installation process at BKN Plumbing is designed to be straightforward and efficient, from your initial inquiry to enjoying endless hot water.
Request a Quote
Call (844) 442-2071 to schedule a site visit. We assess your fixtures, gas supply and venting options, then give you a detailed quote.
Install and Upgrade
We remove your old heater, upsize gas lines if needed and mount the new unit. Venting, water connections and isolation valves are installed to manufacturer specs.
Test and Train
We fire the unit, check gas pressure and test hot water at multiple fixtures. Then we show you how to flush the system and register your warranty.
Frequently Asked Questions About Tankless Water Heater Installation in Bath
The cost for tankless water heater installation in Bath 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.
Tankless units eliminate standby heat loss, which can reduce water heating energy use. Savings vary based on household size and usage patterns.
Most tankless water heaters come with a manufacturer's warranty of 10 to 15 years on the heat exchanger and 3 to 5 years on parts. BKN Plumbing also provides a warranty on our installation labor, which we will spell out in your service agreement.
A straight replacement takes four to six hours. Tank to tankless conversions with gas and venting changes typically take a full day.
Tankless water heaters benefit from annual flushing to remove mineral buildup, especially in areas with hard water. This helps maintain efficiency and extend the unit's lifespan. We offer maintenance services to keep your system running smoothly.
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 use a licensed professional.
We install Rinnai, Navien, Noritz and Rheem tankless water heaters. Each brand offers different features, efficiency levels and warranty terms.
Yes. When properly sized, a tankless water heater can provide an endless supply of hot water, even for large families. It is important 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?

Mark T.
When our office needed drain cleaning, BKN Plumbing provided quick, reliable service. The plumber arrived on time and made sure every drain flowed perfectly before leaving. Very satisfied.
Drain Cleaning · Auburn, ME
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 · Topsham, ME
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 · Yarmouth, ME
James P.
Our commercial plumbing system had a leak under the sink, and BKN Plumbing handled it professionally. The plumbers arrived quickly and restored everything without disruption to our customers.
Commercial Plumbing · Gardiner, ME
Patricia H.
We had a slab leak that two other companies could not find. BKN Plumbing located it in under an hour, explained our options, and the price matched the quote to the dollar.
Slab Leak Repair · Auburn, ME
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 · Bath, ME













