A new tankless water heater, installed by a licensed plumber.
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Water Heaters in Houston, TX
A new tankless water heater, installed by a licensed plumber.
Mention Monty the Mole
Houston is hard on water heaters. Mineral-heavy water builds scale inside the tank, many units sit in attics where a failure drains straight through the ceiling, and humidity accelerates corrosion on connections and fittings. Molberg Plumbing provides water heater repair, replacement, installation, maintenance, and tankless service for Houston homes and businesses.
Our licensed plumbers handle units that have stopped producing, tanks that have started leaking, systems that cannot keep up with the household, and conversions from tank to tankless. We diagnose the real cause, explain what it takes to resolve it, and give you the price up front. Reach out and we will get you scheduled.
Every service Molberg runs in Houston, on one list. Not sure which? Call it in and describe what it is doing.
From routine repairs to emergencies, Molberg Plumbing is ready to help.
Call 817-475-2800
Hot water demand rises in the cooler months when incoming water temperatures drop and the unit has to work harder to reach the same setpoint. A tank that has been marginal all year frequently fails during that stretch.
These are the signs worth acting on:
Call us when you notice any of these. Addressing a problem early is far less expensive than replacing flooring after an attic tank lets go.

Real feedback from real Fort Worth homeowners, unedited.
Work ordercompletedMolberg Plumbing · M42278
David is a top notch plumber! He is very knowledgeable, professional and explained everything to our understanding. He took care of our clogged drain. Very personable and showed up on time. Highly recommend Molberg Plumbing!!
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The right system depends on your fuel source, household size, available space, and how much hot water gets used at once. Our technicians work with all of the following:
Each type carries different maintenance requirements, efficiency ratings, and installation needs. We can service what you have or help you evaluate whether a different system would suit your home better.
We repair heating elements, thermostats, gas control valves, thermocouples, igniters, dip tubes, corroded connections, and pressure relief valves that have begun discharging. Before replacing a part, we confirm what actually failed so the same issue does not reappear in a few months.
You get an explanation of the problem and a price for the repair before we begin. When a unit is too far along for a repair to make financial sense, we say so plainly instead of taking the easy money.
Our team installs tank systems, tankless units, gas and electric models, and hybrid heat pumps, all to code with proper venting, connections, expansion tanks, and drainage. For attic installations we verify that the drain pan and drain line are correctly sized and routed, since that detail prevents a leak from becoming ceiling damage.
We start by asking how your household uses hot water, then recommend a system that fits the demand, the space, and the budget. After installation we test the unit and explain how to operate and maintain it. Financing is available on replacements.

Given the mineral content in Houston water, annual maintenance is not a nicety. Scale builds on the tank bottom, insulates the burner from the water, forces longer heating cycles, and shortens the life of the unit measurably.
Our maintenance visit covers flushing sediment, inspecting the anode rod, testing the temperature and pressure relief valve, checking the burner or elements, and verifying venting and connections. If your water heater has never been serviced, our plumbers can flush it and give you an honest read on the condition of the tank.
Tankless systems heat water as you use it, which delivers continuous hot water and removes the standby loss of keeping fifty gallons hot around the clock. They also eliminate the risk of a full tank failing in your attic, which is a meaningful consideration in Houston homes.
We install, replace, repair, and descale tankless units across the Houston area. Descaling is essential here because hard water coats the heat exchanger and cuts output over time. If you are considering the switch, we will price a tank replacement alongside a tankless conversion and tell you honestly whether your gas supply and venting can support the change.
When hot water disappears, you want a company that responds, communicates clearly, and helps you make a sound decision instead of pushing the most expensive option. We are licensed, family-owned, and have been serving Texas homeowners since 2018.
Houston customers work with us for these reasons:
Every job gets the same standard of work, regardless of size.

Monty digs a straight line from your call to a working pipe.
Reach us 24/7. A real person answers, and same-day slots are on the table for most projects.
We diagnose the real problem, walk you through the options, and put the price on paper first.
Repairs usually happen on the spot. Bigger jobs get scheduled around you, and every job is backed by our workmanship warranty.

We work in Houston homes of every era, from bungalows with units squeezed into closets to newer builds with attic installations and exterior tankless systems. Each setup comes with its own quirks, and our plumbers are equipped for all of them.
Our service covers neighborhoods including the following:
If your neighborhood is not listed, get in touch anyway. We serve the greater Houston area along with Spring, Klein, Tomball, and The Woodlands.
Mineral content is the main reason. Scale accumulates on the tank bottom, the anode rod wears out sooner, and the unit runs longer cycles to reach temperature. Humidity also corrodes fittings and connections faster than it would in a drier climate.
Check the drain pan periodically for standing water, and look for rust at the base of the tank or moisture at the pressure relief valve. An attic unit that fails without a working drain line sends water through the ceiling, so this is the one installation where proactive replacement is often the smarter choice.
A fitting leak produces moisture at a specific connection point. A tank leak shows up as water at the base with no identifiable source above it. The distinction matters, because a leaking fitting is a repair and a leaking tank is a replacement.
Many Houston homeowners do, particularly those replacing an attic unit. You gain continuous hot water and eliminate the flood risk of a stored tank overhead. The install costs more and may require venting or gas line work, so we price both options before you decide.
Once a year is the standard recommendation here, and some households benefit from a shorter interval. Skipping it allows mineral deposits to restrict flow through the heat exchanger, which shows up as reduced output and eventually as error codes.
One hundred twenty degrees suits most households. It provides comfortable hot water without a scald risk and produces less mineral precipitation inside the tank than higher settings.
Electric units stop producing hot water without power, and gas units with electronic ignition do as well. Standard pilot-light gas heaters continue working. If outages are a concern for your household, that is worth factoring into your next replacement decision.
Yes. We work with restaurants, offices, and multi-tenant properties throughout Houston on commercial water heater repair, replacement, and maintenance, and we schedule around business hours where the job allows.
We treat leaking tanks as a priority, especially attic installations. Contact us and we will give you a realistic arrival window rather than an optimistic one.
Water heaters, repipes and sewer lines don’t wait for a good month. Get the price on paper first, then pay it off over time.
12 months
No interest if paid in full*
Also 6 and 15 months, or fixed-rate plans up to 180 months. On qualifying work through GreenSky.
See Financing Plans2 years
VIP workmanship warranty
Extended coverage on installs and replacements with Molberg-supplied parts. Renews yearly with the $199 VIP plan.
See VIP Membership*Subject to credit approval. Call 866-936-0602 for financing costs and terms.
A failing water heater will not fix itself, and an attic tank that lets go takes your ceiling with it. If yours has quit, started leaking, developed a noise, or stopped keeping up with the household, our Houston plumbers can diagnose it and resolve it properly. Request service online or contact us for your free estimate. We will inspect the system, explain what we found without the jargon, and give you real pricing on every option before any work begins.
Call 817-475-2800We serve Fort Worth, the DFW area and Houston’s north side. Find your city below.
Tarrant · Denton · Parker Counties

Montgomery · Harris Counties

Coverage is approximate. Just outside it? Call anyway.
Both service areas in full