How long does a water heater repair or replacement take?

Most repairs wrap up in one to two hours once we've diagnosed the problem, especially common ones like a thermocouple, heating element, or thermostat. A straight tank-for-tank replacement usually takes three to four hours. Conversions take longer. Moving from a tank to tankless, or relocating the heater, can run most of a day because of venting and gas line changes.

Why is my water heater making popping or rumbling sounds?

Sediment, almost always. Minerals from hard water settle at the bottom of the tank, and water trapped under that layer boils and pops as the burner heats it. The noise itself isn't dangerous, but it means the heater is running less efficiently and the tank bottom is taking extra heat stress. A flush often quiets it down. If the tank is older and the sediment has been building for years, flushing may not clear it all, and that's when we start talking about replacement.

What should I do if my water heater is leaking?

First, shut off the cold water supply valve at the top of the tank. Then turn off the power at the breaker for an electric unit, or turn the gas control knob to "off" or "pilot" on a gas unit. Put a pan or towels down to protect the floor. After that, call us. A leak from a fitting or the relief valve can often be repaired. A leak from the tank itself means it's time for a new heater.

Is a tankless water heater worth it?

For most households, yes. You get endless hot water, lower monthly gas bills, and a unit that lasts up to 20 years, roughly double the life of a standard tank. The upfront installation costs more, and older homes often require an upgraded gas line or stainless steel venting to handle the higher BTU demand. If your current tank still works fine, there is no need to rush into a replacement. We lay out the line-item costs for both tank and tankless options so you can compare the numbers yourself.

What size water heater does my home need?

A 40-gallon tank usually covers a household of one or two people. Families of three or four need a 50-gallon heater, while homes with five or more people require a 75-gallon tank or a tankless unit. Bathroom count and large soaking tubs also increase your demand. We walk through your daily routine to size the heater around how your household actually uses hot water.

Can you take care of other plumbing problems during the same visit?

Yes. If we spot something while we're working on your water heater, we'll point it out and quote it separately so you can decide. We also handle drain cleaning , residential sewer line repair , water line repair services , and video camera inspection services to find problems hidden inside your pipes.

How do I book water heater repair in Overland Park?

Call Mr. Rooter Plumbing of Overland Park, and we'll find a time that works for you. You can also request a job estimate online or reach us through our contact us page. Have the age of your heater and whether it's gas or electric handy if you can. It helps us bring the right parts the first time.

Water Heater Repair in Overland Park, KS

Cold shower this morning? Mr. Rooter Plumbing of Overland Park handles water heater repair in Overland Park, KS for gas, electric, and tankless units, from a worn-out thermocouple to a rusted tank that has to come out. Our plumbers average 15 years in the trade, so most problems get pinned down on the first visit. If you want an Overland Park plumber who explains the fix and the price before starting, give us a call.

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Water Heater Repair and Replacement Services in Overland Park

On a gas unit, we check the pilot, thermocouple, gas control valve, and burner, plus the flue, to confirm exhaust is drafting up and out of the house. We also look for signs of backdrafting, like scorch marks near the burner door, because poor draft on a gas heater is a carbon monoxide risk. Electric heaters get a different workup: upper and lower heating elements, both thermostats, and the wiring between them.
Some tanks aren't worth saving. If yours is past 10 years old, rusting at the seams, or leaking from the tank body instead of a fitting, replacement is the better use of your money. We drain it, remove it, set the new heater, and connect the water lines, gas or electrical supply, and venting. On gas installs, we leak-test the connection and confirm the flue drafts properly before we leave.
Tankless units don't fail as tanks do. They throw error codes, shut down mid-shower, or deliver water that swings between hot and warm. We descale tankless heaters with a flush kit, clean the inlet screen, check the igniter and flame sensor, and read the error history to find the real cause. Our tankless water heater services cover gas and electric models, from yearly flushes to full conversions.

Repair or Replace? Signs Your Water Heater Is Wearing Out

A tank water heater in Overland Park usually lasts 8 to 12 years. Tankless units can go nearly twice that. Where yours lands depends on water hardness, household size, and whether anyone has ever drained the tank.

These are the warning signs we tell homeowners to watch for:

Hot water runs out sooner than it used to
The faucet takes longer to warm up
Rusty or cloudy water comes from the hot side only
Popping or rumbling noises while the burner or elements are running
Water pooling around the base of the tank
A pilot that won't stay lit, or a breaker that keeps tripping on an electric unit

Not every puddle means the heater is finished. Sometimes it's a loose fitting, a dripping relief valve, or one of the leaking pipes that feed the tank. That's a repair. A leak from the tank body is a different story. Once the steel inside rusts through, there's nothing to patch.

Before we recommend replacement, we look at the age of the unit, how often you've paid for repairs, whether it keeps up with your family's hot water use, and what a more efficient model would save on monthly energy bills.

Why Choose Mr. Rooter for Water Heater Replacement in Overland Park, KS

Our plumbers average 15 years in the trade. That's long enough to have worked on nearly every brand, venting setup, and cramped basement layout in Johnson County, from the 1950s ranches in Prairie Village to newer builds south of 135th Street. Experience shows up in the diagnosis. We don't guess, and we don't swap parts hoping one of them works.

You'll get a written, line-item estimate before any work starts. No surprise charges once the job's done. We arrive in uniform, wear shoe covers in your home, clean up after ourselves, and we stand behind both our workmanship and the parts we install.

Water heaters are a big part of what we do, but not the only part. The same crew handles gas lines, sump pumps, repiping, and residential plumbing repair services of all kinds. We work in homes across Overland Park, Fairway, Merriam, Mission, Mission Hills, Roeland Park, Westwood, and Prairie Village. Need a plumber in Leawood or plumbing repair services in Stilwell? We cover those too. Before you book, take a look at our current special offers.

Residential & Commercial Services

Mr. Rooter Plumbing of Overland Park

Areas We Serve

Leawood
Lenexa
Mission
Olathe
Overland Park
Prairie Village
Stilwell

Services We Provide

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Commercial

Water Heater Repair FAQs

Most repairs wrap up in one to two hours once we've diagnosed the problem, especially common ones like a thermocouple, heating element, or thermostat. A straight tank-for-tank replacement usually takes three to four hours. Conversions take longer. Moving from a tank to tankless, or relocating the heater, can run most of a day because of venting and gas line changes.
Sediment, almost always. Minerals from hard water settle at the bottom of the tank, and water trapped under that layer boils and pops as the burner heats it. The noise itself isn't dangerous, but it means the heater is running less efficiently and the tank bottom is taking extra heat stress. A flush often quiets it down. If the tank is older and the sediment has been building for years, flushing may not clear it all, and that's when we start talking about replacement.
First, shut off the cold water supply valve at the top of the tank. Then turn off the power at the breaker for an electric unit, or turn the gas control knob to "off" or "pilot" on a gas unit. Put a pan or towels down to protect the floor. After that, call us. A leak from a fitting or the relief valve can often be repaired. A leak from the tank itself means it's time for a new heater.
For most households, yes. You get endless hot water, lower monthly gas bills, and a unit that lasts up to 20 years, roughly double the life of a standard tank. The upfront installation costs more, and older homes often require an upgraded gas line or stainless steel venting to handle the higher BTU demand. If your current tank still works fine, there is no need to rush into a replacement. We lay out the line-item costs for both tank and tankless options so you can compare the numbers yourself.
A 40-gallon tank usually covers a household of one or two people. Families of three or four need a 50-gallon heater, while homes with five or more people require a 75-gallon tank or a tankless unit. Bathroom count and large soaking tubs also increase your demand. We walk through your daily routine to size the heater around how your household actually uses hot water.
Yes. If we spot something while we're working on your water heater, we'll point it out and quote it separately so you can decide. We also handle drain cleaning, residential sewer line repair, water line repair services, and video camera inspection services to find problems hidden inside your pipes.
Call Mr. Rooter Plumbing of Overland Park, and we'll find a time that works for you. You can also request a job estimate online or reach us through our contact us page. Have the age of your heater and whether it's gas or electric handy if you can. It helps us bring the right parts the first time.

See All FAQs

Residential
Commercial