Tankless Water Heater Replacement in Hattiesburg, MS

Worn-out tankless unit throwing error codes? We replace tankless water heaters across Hattiesburg, MS with properly sized, scale-protected units that deliver steady hot water.

4.8/5 503 reviews
  • Dependable Hot Water
  • Upfront Pricing
  • Experienced, Licensed Plumbers
  • Isolation Valves Installed on Every Job
Call Us Now(601) 265-9260
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Tankless Water Heater Replacement in Hattiesburg, MS
Tankless Water Heater ReplacementHattiesburg, MS
Call Now For Free Quote(601) 265-9260

Professional Tankless Water Heater Replacement in Hattiesburg, MS.

Call DFM Plumbing today for a free estimate on your tankless water heater replacement.

(601) 265-9260Monday - Saturday : 8.00 am - 6.00 pm

Professional Tankless Water Heater Replacement in Hattiesburg, MS

When your old tankless unit is failing or you are ready to switch from a traditional tank, DFM Plumbing offers dependable tankless water heater replacement. Our licensed plumbers make sure your new system is sized correctly and installed to meet local Hattiesburg, MS codes. That gives you on-demand hot water for years to come.

Our expertise includes:

  • Clean integration with existing plumbing and gas lines.
  • Expert removal and disposal of old water heaters.
  • Correct sizing and model selection for your home.
Your Trusted Source for Tankless Water Heater Replacement in Hattiesburg, MS
Why Choose DFM Plumbing for Tankless Water Heater Replacement in Hattiesburg, MS?
5,100+Satisfied
Customers

Why Choose DFM Plumbing for Tankless Water Heater Replacement in Hattiesburg, MS?

Our experience means your new tankless unit is installed correctly the first time, preventing common issues that come from improper sizing or connection.

  • Energy Savings, Tankless water heaters only heat water when you need it, which can noticeably reduce energy use compared to traditional tank models, a big plus for Mississippi utility bills.
  • Endless Hot Water, Stop running out of hot water, even during peak demand, a true luxury for busy Hattiesburg households with multiple showers or large families.
  • Scale Protection, Every install includes isolation valves so the heat exchanger can be descaled without cutting pipe.

Citywide Coverage

From downtown lofts to suburban homes, our technicians are familiar with the plumbing layouts found throughout Hattiesburg. We make sure every installation meets local codes and your standards.

Experienced Team

When you choose DFM Plumbing, you get a team that knows the ins and outs of every major tankless brand. You can count on a precise and reliable installation for your home's requirements.

Safety-First Approach

We take extra care with gas and water line connections, ventilation and pressure relief systems. You get a replacement that not only works properly but also meets the highest safety standards.

Trusted Certified Hattiesburg Plumbing Services Professionals

At DFM Plumbing, we take pride in providing licensed, certified plumbing services throughout Hattiesburg, MS. 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 member plumbing contractorPHCC Plumbing Contractor Recognition
Better Business Bureau accredited plumbing businessBetter Business Bureau (BBB) Accreditation
Angi Certified Pro plumberAngi Certified Pro
ISO 9001 quality management certificationISO 9001 Quality Management Certification

Expert Tankless Water Heater Replacement Services in Hattiesburg, MS

Commercial Tankless Water Heater Replacement in Hattiesburg, MS

Businesses in Hattiesburg, MS often need robust hot water solutions, and tankless systems can provide the efficiency and capacity needed. We regularly replace commercial tankless units for restaurants, offices and other facilities with minimal disruption to your operations. Our plumbers are experienced with high-capacity models and complex plumbing layouts. We deliver a reliable hot water supply that meets your business's demands and health code requirements.

Tankless Water Heater Replacement service for Hattiesburg homeowners

Tank to Tankless Conversions in Hattiesburg, MS

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 usually 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 Hattiesburg

For homeowners in Hattiesburg, 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 all necessary gas and water line adjustments and venting changes to meet current codes.

Tankless vs. Tank Water Heater Conversion in Hattiesburg, MS

Thinking about converting from a traditional tank water heater to a tankless system in your Hattiesburg, MS home? This is a common and worthwhile upgrade, but it requires specialized expertise. We handle the entire conversion, which can involve rerouting gas lines, upgrading electrical service, modifying water lines and installing new venting. Our team makes for a smooth transition, so you can enjoy the long-term benefits of a modern, efficient tankless system.

Emergency Tankless Water Heater Replacement in Hattiesburg

A sudden tankless water heater failure can leave your Hattiesburg home without hot water, which is a major inconvenience. DFM Plumbing offers emergency tankless water heater replacement to restore your hot water fast. We put a priority on urgent situations, working to diagnose the issue and, if replacement is necessary, get a new unit installed as soon as possible. Our goal is to cut down your downtime and get your home back to normal with reliable hot water.

Emergency Tankless Replacement in Hattiesburg, 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 anytime your tankless quits.

Navien Tankless Water Heater Replacement in Hattiesburg, 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 Hattiesburg, 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.

Professional tankless water heater replacement, Hattiesburg, MS

Rinnai Tankless Water Heater Replacement in Hattiesburg

Rinnai is a leading brand in the tankless water heater market, known for its quality and engineering. If your Rinnai unit is aging or malfunctioning, DFM Plumbing provides expert Rinnai tankless water heater replacement in Hattiesburg. We make sure your new Rinnai unit is installed correctly, maximizing its efficiency and lifespan. Our technicians are familiar with the installation requirements and venting options for Rinnai models, so the upgrade goes smoothly.

Tankless Water Heater Replacement Near Me in Hattiesburg, MS

When your tankless unit needs replacing, you want a trusted local company. We aim to be the go-to choice for tankless water heater replacement near me in Hattiesburg, offering reliable solutions and upfront pricing to our neighbors throughout the community.

If you are searching for tankless water heater replacement near me, you want a local plumber who understands Mississippi water and gas codes. DFM Plumbing serves Hattiesburg with trucks stocked for tankless installs. We can often give you a firm quote after a short phone call and a few photos.

DFM Plumbing at a Glance

  • Fully licensed plumbing team covering Hattiesburg, MS
  • Same-day appointments and 24/7 emergency response
  • Clear written estimates, no hidden fees
  • 4.8-star rated by 503+ Mississippi customers

Hattiesburg Map

Hattiesburg Information

Population
48,414
Area codes
601/769/601
Service area
Hattiesburg and communities within 40 miles
Nearby
Gulfport, Biloxi, Brandon, Pascagoula

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 Hattiesburg, MS from early failures.

Expert Services

Trust our professionals for reliable DFM Plumbing solutions in Hattiesburg, MS.

Our Specialized Plumbing Services in Hattiesburg, MS

At DFM Plumbing, we provide a complete range of plumbing services across Hattiesburg, 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 Hattiesburg, MS

Our tankless water heater replacement process is designed to be straightforward and stress-free for homeowners in Hattiesburg, MS.

01

Request a Quote

Call (601) 265-9260 with your current model number and a photo of the install. We give you a rough price and schedule a visit.

02

Size and Inspect

Our tech measures gas line size, meter capacity, venting path and water hardness. We recommend a unit that fits your hot water demand.

03

Install and Test

We remove the old heater, install the new one with service valves and venting, then test gas pressure and combustion. You get a walkthrough on settings and flushing.

Frequently Asked Questions About Tankless Water Heater Replacement in Hattiesburg

The cost for tankless water heater replacement in Hattiesburg, MS usually ranges from $3,000 to $6,000, depending on the unit's brand, capacity, fuel type (gas or electric) and any needed changes to gas lines, electrical or venting. This estimate includes both the new unit and professional installation. We always provide a detailed quote upfront after assessing your needs.

Most jurisdictions in Mississippi require a permit for water heater replacement, especially when gas piping or venting changes. We handle permits where they are required.

A standard tankless water heater replacement, if you are upgrading from an existing tankless unit, typically 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 crucial, especially in areas with hard water. This typically 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.

We install Navien, Rinnai, Noritz, Takagi and Rheem tankless heaters. Each has its own strengths, and we recommend based on your flow needs, venting options and budget.

A standard tankless water heater replacement usually 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.

DFM Plumbing installs and replaces all major reputable brands of tankless water heaters. Our preferred brands include Rinnai, Navien, Noritz and Rheem, as they are known for their reliability, energy efficiency and long-term performance. We can also order and install other brands based on your preference or home requirements.

Most manufacturers offer 10 to 15 years on the heat exchanger and about 5 years on parts for residential use. We add our own labor warranty and register the unit for you.

What People Are Saying About Our Plumbing Experts?

4.8/5 503 reviews
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