Tankless Water Heater Replacement in Olive Branch, MS
DFM Plumbing provides expert tankless water heater replacement services across Olive Branch, MS, ensuring your home has efficient hot water.
- Quick Tankless Installation
- Dependable Hot Water
- Licensed Gas Line Technicians
- Expert Plumbers
Stop Waiting on Lukewarm Showers. Upgrade Your Tankless in Olive Branch, MS.
Call DFM Plumbing today for a free estimate on your tankless water heater replacement.
Your Go-To for Tankless Water Heater Replacement in Olive Branch, MS
DFM 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 suggesting a model. That way the new heater is not starved for fuel or choked by scale.
Our expertise includes:
- Careful sizing and installation of new tankless units.
- Condensing unit installs with PVC venting and condensate neutralizers
- Gas line sizing and upsizing for 199,000 BTU tankless units

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

Customers
Why Choose DFM Plumbing for Tankless Water Heater Replacement in Olive Branch, MS?
We understand the plumbing challenges homes face in Mississippi and are equipped to handle any complexities involved in swapping your old tankless unit for a new, reliable one.
- Longer Lifespan, Tankless water heaters usually last longer than conventional tank units, often up to 20 years with proper maintenance, giving you better long-term value.
- Right-Sized Units, We calculate gallons per minute and temperature rise for your fixtures instead of estimating from square footage.
- Energy Savings, Tankless water heaters only heat water when you need it, which can significantly reduce energy use compared to traditional tank models, a big plus for Mississippi utility bills.
Citywide Coverage
Whether your tankless sits on an exterior wall, in a garage or inside a utility closet, we cover all of Olive Branch with the same scheduling and pricing. Most replacements are scheduled within a day or two.
Experienced Team
Our team of licensed plumbers has extensive experience with all major tankless water heater brands and models. They complete ongoing training to stay current on installation techniques and safety protocols for this specialized equipment.
Safety-First Approach
Safety and code compliance are paramount in every tankless water heater replacement we perform. Our installations follow all Mississippi and local Olive Branch plumbing and gas codes, so your system runs safely and efficiently.
Trusted Certified Olive Branch Plumbing Services Professionals
At DFM Plumbing, we take pride in providing certified plumbing services throughout Olive Branch, MS. 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 CertificationProfessional Tankless Water Heater Replacement Services in Olive Branch, MS
Emergency Tankless Replacement in Olive Branch, MS
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 often 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 on arrival. Call (601) 265-9260 any time your tankless quits.

Navien Tankless Water Heater Replacement in Olive Branch, MS
Navien tankless water heaters are popular for their condensing technology, offering high efficiency and performance. When it is time for a Navien tankless water heater replacement in Olive Branch, MS, you can count on DFM Plumbing. We have broad 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.
Gas Tankless Water Heater Replacement in Olive Branch
Many homes in Olive Branch rely on natural gas for water heating, and gas tankless units are a very efficient option. Our gas tankless water heater replacement service includes thorough 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 Mississippi and local codes, preventing potential hazards and maximizing efficiency.
Commercial Tankless Replacement in Olive Branch
Restaurants, salons and small offices often use multiple tankless units linked together on a rack system. When one or more units fail, we replace them and rebalance the cascade controls so they split the load. We check gas pressure under full demand, since commercial racks can draw more than 600,000 BTU combined. Scheduling is easy to work around, so we can work after hours and keep your business open. We also set up a descaling schedule matched to your water usage.
Exterior Mount Tankless Units in Olive Branch, MS
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. Freezing weather is infrequent in Mississippi, but a hard freeze every few winters can catch homes that were never built for it. 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 easiest swap when the gas line is already sized correctly.
Like-for-Like Tankless Swaps in Olive Branch
When your existing tankless has a cracked heat exchanger or a failed control board that is not worth repairing, a direct replacement is often the fastest fix. We match the new unit to your current gas line, venting type and mounting location whenever possible. Many Rinnai and Navien models share similar footprints, which keeps wall patching to a minimum. We also replace the old service valves if they are corroded or seized. Most like-for-like swaps are done in four to six hours.
Electric Tankless Water Heater Replacement in Olive Branch, MS
For properties without natural gas access or those looking for an all-electric solution, electric tankless water heaters are a practical choice. DFM Plumbing offers electric tankless water heater replacement services in Olive Branch, MS. This often involves close assessment of your home's electrical panel capacity, as these units require significant amperage. We make sure your new electric tankless unit is installed safely and effectively, providing on-demand hot water without the need for gas lines.

Tankless vs. Tank Water Heater Replacement Cost in Olive Branch, MS
When considering tankless water heater replacement in Olive Branch, MS, it is natural to compare costs. While the upfront installation of a tankless unit can be higher than a traditional tank, the long-term energy savings and longer lifespan often make it the more economical choice. We provide clear, upfront pricing for both options. That helps you make an informed decision based on your budget and hot water needs, with no surprises.
Tankless Water Heater Replacement Near Me in Olive Branch, MS
When your tankless unit needs replacing, you want a reliable local company. We pride ourselves on being the go-to choice for tankless water heater replacement near me in Olive Branch, offering reliable solutions and transparent pricing to our neighbors throughout the community.
Do not compromise on your home's hot water supply. For dependable tankless water heater replacement near me in Olive Branch, choose DFM Plumbing. We provide upfront estimates, transparent communication and expert workmanship, making your upgrade to endless hot water a smooth and stress-free experience.
DFM Plumbing at a Glance
- Licensed and insured plumbers serving Olive Branch, MS
- 24/7 emergency service with same-day scheduling
- Upfront, flat-rate pricing before work begins
- 4.8-star rated by 503+ Mississippi customers
Olive Branch Map
Olive Branch Information
- Population
- 47,029
- Area codes
- Local
- Service area
- Olive Branch and communities within 40 miles
- Nearby
- Southaven, Horn Lake, Oxford, Tupelo
Iron can leave orange stains on fixtures and laundry, and sulfur odors often trace back to the water heater anode or the well itself. Scale builds inside tankless heat exchangers over time, so a correctly sized replacement with flush valves protects homes in Olive Branch, MS from early failures.
Expert Services
Trust our professionals for reliable DFM Plumbing solutions in Olive Branch, MS.
Our Specialized Plumbing Services in Olive Branch, MS
At DFM Plumbing, we provide a complete range of plumbing services across Olive Branch, MS. 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 Olive Branch, MS
We follow a proven method for every tankless water heater replacement in Olive Branch, from initial assessment to final testing, for a quality installation.
Request a Quote
Call us at (601) 265-9260 or fill out our online form to schedule an initial consultation. We will discuss your hot water needs and current system issues, and provide a detailed, upfront estimate.
On-Site Assessment
Our licensed plumber will visit your Olive Branch home to look over your existing water heating system, plumbing, gas or electrical connections and venting. This helps us recommend the best tankless model and make sure it is properly sized for your household.
Expert Installation
Once you approve the quote, our team will start the professional installation of your new tankless water heater. We carefully remove the old unit, make any needed plumbing or gas line changes, and make sure the new system is correctly vented and fully operational.
Frequently Asked Questions About Tankless Water Heater Replacement in Olive Branch
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.
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 prepare for tankless water heater replacement, make sure the area around your existing unit is clear and accessible for our plumbers. If possible, clear a path to the installation site and keep pets or children safely out of the work area. We will handle draining the old unit and all other technical preparations.
New tankless water heaters typically come with a manufacturer's warranty, which usually covers the heat exchanger for 10 to 15 years and parts for 3 to 5 years. DFM Plumbing also provides a labor warranty on our installation work for your peace of mind. We will discuss warranty details for your chosen unit during your consultation.
Yes, tankless water heaters are usually more energy-efficient than traditional tank models. They only heat water on demand, eliminating the standby heat loss that comes with keeping a large tank of water hot. This can lead to real savings on your utility bills over time, especially in homes with varying hot water usage.
To extend 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. DFM Plumbing offers maintenance plans to help keep your unit in top condition.
A standard tankless water heater replacement typically takes between 4 and 8 hours. This timeframe can vary based on whether we are replacing an existing tankless unit with a similar model or upgrading from a traditional tank water heater. A tank conversion may require more extensive changes to gas lines, electrical or venting.
Common signs that your tankless water heater needs replacement include frequent error codes, inconsistent water temperature, reduced hot water flow or a complete lack of hot water. If your unit is over 15 to 20 years old and repairs are becoming common and costly, replacement is often the more sensible choice.
What People Are Saying About Our Plumbing Experts?

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 · Greenville, MS
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 · Starkville, MS
Emily R.
I called DFM 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 · Horn Lake, MS
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 · Horn Lake, MS
Mark T.
When our office needed drain cleaning, DFM Plumbing provided quick, reliable service. The plumber arrived on time and made sure every drain flowed perfectly before leaving. Very satisfied.
Drain Cleaning · Oxford, MS
Patricia H.
We had a slab leak that two other companies could not find. DFM Plumbing located it in under an hour, explained our options, and the price matched the quote to the dollar.
Slab Leak Repair · Horn Lake, MS













