Professional Plumbers Serving the Houston Metro Area

Water Heater Installation & Replacement

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Tank and Tankless Water Heater Installation Pros

Water Heater Installation & Replacement

Residential water heater installation and replacement services are essential for ensuring a reliable and efficient hot water supply in your home. When installing a new water heater, the team of professional plumbers at Mammoth Plumbing assess your specific needs, recommend an appropriate unit based on factors like family size and usage patterns, and ensure proper installation to maximize energy efficiency.

If it’s time for a replacement, we expertly remove the old unit, dispose of it responsibly, and install a new, energy-efficient water heater. We take care of all aspects, including electrical or gas connections, plumbing, and safety measures. Our goal is to provide you with a steady and cost-effective hot water supply while ensuring compliance with all local regulations.

Count on Mammoth Plumbing for seamless water heater installation and replacement services, enhancing your home’s comfort and efficiency. Give us a call today at 281-398-1700 for your free water heater installation estimate.


Request Your Service Appointment!

If you’re ready to experience the Mammoth Plumbing difference, complete our service request form below or give us a call directly at 281-398-1700 for your free estimate!

Knowing When It's Time

Common Signs Your Existing Water Heater Needs to be Replaced

Whether it’s due to old age, failed parts, or a supply of hard water, there are numerous reasons that you may need to replace your existing water heater. Below, we look at some of the most common signs your existing water heater needs to be replaced.

Water Heater Installation Houston, TX


The typical lifespan of a water heater is around 8-12 years for traditional tank heaters and up to 20 years for tankless models. 

Discolored Water

Rusty or discolored water coming from the hot water taps can indicate corrosion inside the tank, a clear sign of potential failure.


Any visible leaks around the water heater, especially from the tank itself, require immediate attention and often mean that the tank has deteriorated.

Inconsistent Hot Water

If your water heater struggles to maintain a consistent temperature or runs out of hot water more quickly than before, it may be failing.

Strange Noises

Loud popping, cracking, or rumbling noises from the water heater’s tank can signal sediment buildup, reducing efficiency and potentially leading to damage.

High Energy Bills

An inefficient water heater can lead to higher energy bills, so if you notice a significant increase in costs, it might be time for an upgrade to a more efficient tankless model.

Water Heater Overheating

If the water heater starts overheating or produces scalding hot water, it can be dangerous and may indicate a malfunction.

Frequent Repairs

If you’re repeatedly calling for repairs or the cost of repairs approaches or exceeds the cost of a new unit, replacement is often the more cost-effective choice.

Unpleasant Water

Foul-smelling or metallic-tasting water from the hot taps can be a sign of sediment buildup or internal corrosion.

Visible Tank Damage

If you notice bulging or visible damage, such as corrosion or rust, to the tank or its fittings, it’s a clear indication that replacement may be necessary.

Regular maintenance and prompt attention to these signs can extend the life of your water heater, but eventually, all water heaters will need to be replaced to ensure a reliable and efficient hot water supply.

Which Option is Right for Your Home?

Conventional Tank VS Tankless Water Heaters

Tank water heaters store and continuously heat a reservoir of hot water, ready for immediate use, making them suitable for households with consistent hot water demands but less energy-efficient due to standby heat loss. In contrast, tankless water heaters, also known as on-demand heaters, heat water only as needed, offering energy efficiency and longer lifespans.

Benefits of a Tank Water Heater

  • Lower Initial Cost: Tank water heaters are generally more affordable to purchase and install than tankless units.
  • Simple Installation: Replacement of an existing tank water heater is straightforward, as it typically involves swapping out the old unit for a new one.
  • Consistent Hot Water: Tank heaters provide a continuous supply of hot water as long as there’s water in the tank, making them suitable for homes with moderate to high hot water demands.
  • Familiarity: Tank water heaters have been the standard for decades, and many homeowners are familiar with their operation and maintenance.

Benefits of a Tankless Water Heater

  • Energy Efficiency: Tankless water heaters only heat water when needed, reducing standby energy loss and potentially leading to lower energy bills.
  • Longer Lifespan: Tankless units typically last longer, with a lifespan of up to 20 years.
  • Space Savings: They are compact and can be installed on walls, freeing up floor space.
  • Endless Hot Water: Tankless units provide a continuous supply of hot water, making them ideal for households with high demand for hot water.
  • Temperature Control: Precise temperature control allows you to set the desired hot water temperature.

The choice of installing a tank versus a tankless water heater depends on factors like hot water usage, space availability, and budget, with tank heaters offering lower upfront costs and tankless units delivering energy savings and longer-term benefits.

Mammoth PlumbingExcellentMammoth Plumbing4.6 Based on 25 reviews fromSee all reviews review us onAlexandra WestAlexandra West ★★★★★ Provided a same day fix after our neighbor ran over our water main. Excellent service A+Response from the ownerThank you for using mammoth plumbing, we really appreciate your business. Lucia HarnessLucia Harness ★★★★★ Mammoth plumbing never fails to impress! They are always punctual, professional, and skilled. We rely on Jon and his team for all our plumbing needs.Highly recommend!Response from the ownerWe really appreciate your business, thank you. Angel Fultz-SmithAngel Fultz-Smith ★★★★★ Mammoth Plumbing has been my go-to plumber for the past few years. They have solved minor problems related to clogs, sinks, and the water heater, and they also installed the gas line for a stand-alone home generator. Their pricing is competitive and reasonable, and I trust them to be honest when assessing a problem. Jon and his team conduct their business with integrity and transparency, and I have recommended them to friends and clients over the years. They're fantastic and I cannot recommend them enough.Response from the ownerThank you ms. Fultz-smith for the review it's always a pleasure working for such great clients, thanks for the referral. Steven GarzaSteven Garza ★★★★★ Great and fast service.Response from the ownerThank you for your business Mr. Garza. Nicole GarrettNicole Garrett ★★★★★ This is a fantastic company that we have worked with for many years. They are responsive, honest and well priced.Such a pleasure to work with.Response from the ownerThank you for your business Mrs. Garrett, it's always a pleasure working for wonderful people! John MurphyJohn Murphy ★★★★★ I use Mammoth for both personal and our Church repairs, starting using then in 2017 when they replaced our house after the flood,Kelin BowerKelin Bower ★★★★★ Fast, fair, courteous, and professional. Highly recommend them. There should be a 6th star.Update. We had some serious under-slab plumbing issues. They were able to accurately diagnose the issue where other companies had failed. They put everything back as it was, and even added some smart clean outs and tie-ins for future plans. The most impressive part was though was how much the hustled to get it all done. They even sent my wife flowers when they learned she had gone into labor. Absolutely amazing.Response from the ownerthank you Mr. bower, we really appreciate your business! JohnJohn ★★★★★ I just wanted to send you a big shout out for great service. Jimmy came out to look into my washing machine waste line which also has my drain from the AC unit and it had been slightly overflowing. I first used a safe drain opener to possibly open the line, but in addition wanted to have it looked at to make sure everything was okay. He did an outstanding job scoping the line and found just a small amount of sediment on the walls. I just wanted to let you know that I will highly recommend your company to anyone needing quality professional plumbing work done!JohnResponse from the ownerThank you so much for your business and your patience, it was a pleasure working for you, I will pass this letter on to jimmy. Kevin BallKevin Ball ★★★★★ I had an under-foundation issue with my plumbing (an absolute nightmare) and this company was awesome. Very professional, obviously knew what they were doing, and the owner had a great way of making me feel like he would solve the problems and calmed me down. It was a major project and they did a great job and the warranty is outstanding. I can't say enough good things about this company. I had 5 other quotes and this one was by far the most professional and expert in this area.Response from the ownerthank you Mr. ball, it was a pleasure working for you. Jeremiah FisherJeremiah Fisher ★★★★★ It was warranty work, but they were prompt and professional. No Complaints. I will go back if I have plumbing needs.Response from the ownerwe appreciate you very much mr. fisher! thank you for your business. Daniel ApplegateDaniel Applegate ★★★★★ They do good work at a reasonable priceDisiere JamesDisiere James ★★★★★ Great Servicedebbieg555debbieg555 ★★★★★ Great response, great rates.Response from the ownerthank you for your review! Dierke HobbsDierke Hobbs ★★★★★ Price was more than fair, and the work was done when scheduled. We are very pleased with the job.Response from the ownerMr. Hobbs thank you for your business, it was a pleasure meeting you and working for you!!! YLYL ★★★★★ Integrity. Honesty. Genuine care. Highly recommend!vijet chuonvijet chuon ★★★★★ Mammoth is the best when it comes to Rinnai tankless water heaters. Ron was on time, professional, and brutally honest about issue. He was able to troubleshoot and found the root cause of why my water heater was acting up. Definitely will use them again and please give Ron some recognition!Kevin MellorKevin Mellor ★★★★★ West UniversityGary LegerGary Leger ★★★★★ I had called a different company that charged a big service fee and did nothing to fix the problem. However mammoth came out fast and on time and readjusted the work I had done and got the water heater started in 10 min. Michael was great. I will used them before anyone else in the future. Awesome company!Response from the ownerthank you for your review Mr. leger, we greatly appreciate your business. Carey TiseCarey Tise ★★★★★ I had great service, Mammoth called before coming out and gave me a window of when they would be there so I could plan. They arrived as promised and installed a new hot water heater in the upstairs attic. They disposed of the old hot water heater so I did not have to deal with it. Their pricing was great and billing was the amount they promised, with no hidden charges. Great job!js_loader

Houston’s Water Heater Pros

At Mammoth Plumbing, we understand that reliable hot water is essential for your home’s comfort. With over a decade of dedicated service to the Houston Metro area, we’ve perfected the art of water heater installation and replacement.

Our team of factory-trained and certified plumbers is committed to delivering the highest quality craftsmanship with a keen eye on efficiency. Equipped with stocked service vehicles, we’re prepared to tackle any water heater project promptly and professionally. Your satisfaction and peace of mind are paramount, which is why we offer comprehensive parts and labor warranties on our all of work and equipment.

When it comes to your home’s hot water needs, trust the experts who care – choose Mammoth Plumbing. Contact us today at 281-398-1700, and experience the warmth and comfort of a job well done.