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Call the Water Heater Specialists!


Recognizing the right time to replace your water heater is crucial to ensure a continuous and uninterrupted flow of hot water in your home or business. Our services encompass comprehensive maintenance for your water heater, including cleaning, flushing, repairs, and replacements.

We specialize in the installation of various types of water heaters, catering to both residential homes and commercial businesses. Our expertise extends to gas, electric, and tankless water heaters, ensuring that we can meet the unique needs of every customer. Stay ahead of potential issues by familiarizing yourself with the telltale signs that indicate it's time to replace your water heater.

If you start noticing grumbling noises emanating from your water heater, it is a clear indication of calcium build-up in the tank. When your water heater reaches this stage, we recommend opting for a replacement rather than attempting repairs.

In the event of a plumbing emergency where your water heater has burst or is leaking, it's important to remain calm and take immediate action. To mitigate further damage, locate the main cut-off valve situated on the top of your water heater. Once the water supply is shut off, contact Harold's Plumbing without delay, and our dedicated technicians will be dispatched promptly to address the situation.

Understanding the age of your water heater is essential when considering the possibility of replacement. But how can you determine its age or assess if it has reached the end of its lifespan? Fortunately, all water heaters come equipped with a serial number that reveals the manufacturing date. An aging water heater can exhibit several issues that signify the need for attention. These include foul-smelling water, the presence of rust in the water, a corroded or rusted tank, unusual noises such as popping or rumbling sounds emanating from the tank, or an unexplained increase in your electric bill. Regularly inspecting your water heater can help you identify potential problems and take preventive measures to avoid complications down the line.

The presence of white sand particles in your faucets or drinking glass serves as a clear indication of calcium build-up within your water heater. This is a strong signal that your water heater requires replacement. Ignoring this issue and failing to address it promptly can lead to more severe problems, including damage to faucets, fixtures, and potential clogging of pipes throughout your home. It is crucial to take action and replace the water heater to prevent further complications.

Tankless water heaters epitomize state-of-the-art technology, underscoring the importance of entrusting their installation or repair to highly qualified technicians. Unlike traditional hot water tanks, tankless heaters boast distinct advantages. Traditional water heaters constantly heat incoming cold water to maintain a reservoir of hot water that is then distributed throughout the house. This continuous heating process results in lower energy efficiency compared to tankless water heaters.

Tankless water heaters, on the other hand, provide an endless supply of hot water without the need for constant heating and storage. Moreover, their compact size allows for flexible installation outside, in the attic, or in the garage, optimizing space utilization within the home. It's worth noting that tankless water heaters do come at a higher cost compared to traditional options, which may pose budgetary constraints for some individuals.

To enhance the performance and longevity of your tankless water heater, it is highly recommended to have a water softener system installed in your home. This is particularly crucial in the Greater San Antonio area and its surrounding regions, where hard water and mineral content are prevalent. Water softeners effectively mitigate the negative impact of hard water on the system.

Additionally, it is imperative to schedule annual tankless water heater flushing with Harold's Plumbing, even if you have a water softener installed. This essential maintenance procedure helps extend the life of the heat exchanger and ensures optimal performance. Neglecting this maintenance requirement could potentially void your warranty.

For expert assistance with tankless water heater installation, repair, and maintenance, don't hesitate to contact Harold's Plumbing. Our team is equipped with the knowledge and expertise to address all your tankless water heater needs.


For all your gas, electric, or tankless water heater needs, look no further than Harold's Plumbing. Our team of professionals is ready to provide expert installation services with a focus on pride, safety, and guaranteed satisfaction. Give us a call today and experience the difference of our top-notch service.