Tankless Water Heater Replacement in Lexington, KY
Upgrade to endless hot water with a new tankless water heater in Lexington, KY. BFK Plumbing provides professional replacement services.
- Licensed Gas Line Technicians
- Expert, Licensed Plumbers
- Prompt Tankless Replacement
- Expert Plumbers
Stop Waiting on Lukewarm Showers. Upgrade Your Tankless in Lexington, KY.
Call BFK Plumbing today for a free estimate on your tankless water heater replacement.
Professional Tankless Water Heater Replacement in Lexington, KY
BFK Plumbing replaces failing tankless water heaters with condensing and non-condensing units sized to your home's real flow demand. We check gas supply, venting clearances and water hardness before recommending a model. That way the new heater is not starved for fuel or clogged by scale.
Our expertise includes:
- Expert removal and disposal of old water heaters.
- Clean integration with existing plumbing and gas lines.
- Safe gas and electric line connections for new units.

Additional Plumbing Replacement Services in Lexington, KY
When repairs are no longer enough, our replacement services in Lexington, KY deliver durable upgrades that restore full performance.

Customers
Why Choose BFK Plumbing for Tankless Water Heater Replacement in Lexington, KY?
Choosing the right plumbing partner for your tankless water heater replacement is key for long-term performance and peace of mind. We bring years of experience directly with these advanced systems.
- Endless Hot Water, Never run out of hot water, even during peak demand, a true luxury for busy Lexington households with multiple showers or large families.
- Right-Sized Units, We calculate gallons per minute and temperature rise for your fixtures instead of estimating from square footage.
- Space Saving, Their compact design allows tankless units fit in smaller spaces, freeing up valuable room in your utility closet or garage.
Citywide Coverage
BFK Plumbing is proud to serve every neighborhood of Lexington, so no matter where you are, expert tankless water heater replacement is just a call away. We understand the diverse housing types across Lexington and tailor our service to each home's needs.
Experienced Team
Our plumbing team is made up of well trained and licensed professionals with extensive experience in tankless water heater technology. We stay current on the latest models, installation techniques and local Kentucky plumbing codes.
Safety-First Approach
We perform thorough safety checks after every tankless water heater replacement, including leak detection for gas lines and proper ventilation. You can rest assured your new system is safe and compliant with Kentucky regulations.
Trusted Certified Lexington Plumbing Services Professionals
At BFK Plumbing, we take pride in providing certified plumbing services throughout Lexington, KY. Backed by recognized 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 Replacement Services in Lexington, KY
Tank to Tankless Conversions in Lexington, KY
Converting from a 40 or 50 gallon tank to tankless frees up floor space and ends standby heat loss in a garage or closet. The catch is that tankless units often need a larger gas line, often three quarter inch or bigger, plus new venting. We check your meter size and pipe run before quoting so there are no surprises mid-job. We also cap or reroute the old flue and seal the roof penetration if it is no longer used. Expect a conversion to take a full day.

Residential Tankless Water Heater Replacement in Lexington
For homeowners in Lexington, upgrading to a tankless water heater offers significant benefits like endless hot water and reduced energy use. We assess your household's hot water demand to recommend the ideal sized unit, so you get strong performance. Our team handles everything from safely disconnecting your old unit to installing the new tankless system. That includes any needed gas and water line adjustments and venting changes to meet current codes.
Emergency Tankless Replacement in Lexington, KY
A tankless heater that leaks from the heat exchanger or refuses to ignite can leave you with no hot water at all. We offer same-day emergency replacement for common models and can usually get a unit installed the day you call. If your exact model is not in stock, we can sometimes do a temporary repair to restore hot water while the replacement ships. We shut off gas and water to stop any leak as soon as we arrive. Call (502) 300-9896 any time your tankless quits.
Commercial Tankless Water Heater Replacement in Lexington, KY
Businesses in Lexington, KY often require robust hot water solutions, and tankless systems can provide the efficiency and capacity needed. We specialize in replacing commercial tankless units for restaurants, offices and other facilities with minimal disruption to your operations. Our plumbers are skilled with high-capacity models and complex plumbing layouts. We deliver a steady hot water supply that meets your business's demands and health code requirements.
Exterior Mount Tankless Units in Lexington, KY
Many homes have tankless heaters mounted on an exterior wall with no venting at all, since the unit exhausts directly outside. These units face sun, rain and temperature swings, which can wear out plastic covers and wiring over time. On the coldest nights, letting faucets drip and opening cabinet doors on outside walls can head off a burst pipe. When we replace them, we check the pipe cover, freeze protection settings and the electrical connection. We can add a protective pipe cover kit to guard the water and gas lines. Exterior models are often the simplest swap when the gas line is already sized correctly.
Recirculation Tankless Upgrades in Lexington, KY
If you are tired of running the tap waiting for hot water, a tankless with a built-in recirculation pump can bring heat to the fixture in seconds. Navien A series and Rinnai units with internal pumps can use a dedicated return line or a crossover valve under the farthest sink. We program schedules so the pump runs only during your morning and evening peaks. That keeps gas use in check while saving thousands of gallons of wasted water a year. This upgrade is popular in long single-story ranch homes.
Gas Tankless Water Heater Replacement in Lexington
Many homes in Lexington rely on natural gas for water heating, and gas tankless units are a very efficient option. Our gas tankless water heater replacement service includes careful inspection of your existing gas lines, proper sizing of new gas lines if needed, and secure venting to the outdoors. We prioritize safety. All gas connections and combustion air requirements meet Kentucky and local codes, preventing potential hazards and maximizing efficiency.

Navien Tankless Water Heater Replacement in Lexington, KY
Navien tankless water heaters are popular for their condensing technology, delivering high efficiency and performance. When it is time for a Navien tankless water heater replacement in Lexington, KY, you can count on BFK Plumbing. We have extensive experience with Navien's advanced systems, including their combination boiler and water heater units. Our installation process focuses on dialing in your new Navien's performance, so you benefit from its energy-saving features and reliable hot water output.
Tankless Water Heater Replacement Near Me in Lexington, KY
If you are searching for tankless water heater replacement near me, you want a local plumber who understands Kentucky water and gas codes. BFK Plumbing serves Lexington with trucks loaded for tankless installs. We can usually give you a firm quote after a short phone call and a few photos.
Local service matters because tankless problems often show up during the busiest part of your day. Our techs are close by and can diagnose whether a repair or replacement makes more sense. We back every replacement with clear labor coverage and register your manufacturer warranty for you.
BFK Plumbing at a Glance
- Fully licensed plumbing team covering Lexington, KY
- Same-day appointments and 24/7 emergency response
- Clear written estimates, no hidden fees
- 4.8-star rated by 309+ Kentucky customers
Lexington Map
Lexington Information
- Population
- 320,154
- Area codes
- 859/364/502
- Service area
- Lexington and communities within 40 miles
- Nearby
- Nicholasville, Georgetown, Richmond, Frankfort
Replacing an old tankless water heater in Lexington, KY is important for a reliable hot water supply, especially with shifting seasonal demands and mineral content that can cut into unit efficiency and lifespan.
Expert Services
Trust our professionals for reliable BFK Plumbing solutions in Lexington, KY.
Our Specialized Plumbing Services in Lexington, KY
At BFK Plumbing, we provide a complete range of plumbing services across Lexington, KY. 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 Replacement Service Works in Lexington, KY
We make sure every step, from initial consultation to final installation, is handled with professionalism and care.
Request a Quote
Call BFK Plumbing today at (502) 300-9896 to schedule an on-site evaluation for your tankless water heater replacement. Our team will discuss your hot water needs and provide a clear, transparent estimate.
Unit Selection
Based on your home's demands and existing setup, we will help you choose the ideal tankless water heater model. We consider factors like fuel type, flow rate and energy efficiency.
Expert Installation
Our licensed plumbers will carefully remove your old unit and install the new tankless water heater. We make sure all gas, water and vent connections meet Kentucky code requirements for safety and performance.
Frequently Asked Questions About Tankless Water Heater Replacement in Lexington
A like-for-like gas tankless replacement typically runs $2,800 to $4,500 installed, depending on the brand and venting. Converting from a tank to tankless often costs $4,000 to $6,500 because of gas line and venting upgrades. We give you a written quote before any work starts.
Frequent error codes, fluctuating temperature, water leaking from inside the cabinet and a unit older than 15 years are common signs. If the heat exchanger is leaking, replacement is typically the better value.
A direct swap typically takes four to six hours. A tank to tankless conversion with new gas and venting typically takes a full day.
A standard tankless water heater replacement, if you are upgrading from an existing tankless unit, usually takes 4 to 8 hours. If you are converting from a traditional tank water heater, the process can take longer, possibly a full day, due to extra plumbing, gas or electrical changes required for proper installation and venting.
To protect the life and efficiency of your new tankless water heater, regular maintenance is key, especially in areas with hard water. This usually involves annual flushing to remove mineral buildup, checking the air filter, and inspecting gas and water connections. BFK Plumbing offers maintenance plans to help keep your unit in top condition.
Often yes, especially when converting from a tank. Many tankless units need three quarter inch gas pipe and a meter that can supply 199,000 BTU on top of your furnace, range and dryer.
With proper installation and regular maintenance, a new tankless water heater usually lasts 20 to 25 years. This is significantly longer than traditional tank water heaters, which usually last 10 to 15 years. Regular flushing and descaling can help extend the life of your tankless unit, especially in areas with hard water.
Well-maintained tankless units can last 15 to 20 years. In hard water areas without regular descaling, heat exchangers can fail much sooner. Annual flushing makes the largest difference.
What People Are Saying About Our Plumbing Experts?

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













