DIY Plumbing Help

Commercial Water Heater Repair: Keep Your Business Running

Written by Mark Crumpler | Apr 21, 2025 11:00:00 AM

In any commercial setting—whether it’s a restaurant, medical facility, gym, or apartment building—hot water isn’t just a convenience, it’s essential. When your commercial water heater breaks down, it can affect customer service, safety, sanitation, and productivity. 

That’s why timely, professional commercial water heater repair is critical to keeping your business running smoothly. At Crawford Mechanical Services, we’ve been helping businesses across Central Ohio with fast, reliable plumbing solutions for more than 30 years. Here’s what you need to know to protect your commercial property from hot water headaches.

Signs Your Commercial Water Heater Needs Repair

Commercial water heating systems are engineered to endure longer than their residential counterparts, thanks to their robust construction and design. However, they are also subjected to more rigorous demands, operating continuously to meet the high-volume needs of businesses. This constant use can lead to wear and tear over time, making it crucial to monitor for any signs of trouble that could indicate a need for repair or maintenance.

Fluctuating water temperatures:

In a commercial setting, the reliability of hot water is paramount. Whether it's for cooking, cleaning, or customer comfort, any inconsistency in water temperature can severely disrupt business operations. Such fluctuations often point to issues with the thermostat, which regulates the water temperature, or problems with the heating elements that are responsible for warming the water. Addressing these issues promptly can prevent further complications.

Visible leaks or rust:

The presence of water pooling around the base of the heater or visible rust on pipes is a significant warning sign. Leaks can lead to water damage, affecting nearby equipment and flooring, and pose a safety hazard. Rust indicates corrosion, which can weaken the structural integrity of the system, leading to potential failures. Regular inspections can help catch these issues early, preventing costly repairs or replacements.

Strange noises:

Unusual sounds such as banging, popping, or hissing emanating from the water heater are often caused by sediment buildup within the tank. This sediment can create hot spots, leading to overheating and increased wear on the system. These noises not only indicate reduced efficiency but also signal that the system is under stress, which can shorten its lifespan if not addressed.

Inconsistent water pressure:

Commercial water heaters are typically connected to multiple fixtures, and any reduction in water pressure can be a sign of trouble. This issue can arise from clogged valves, sediment accumulation, or problems within the piping system. Reduced pressure can hinder operations, making it essential to identify and resolve the root cause swiftly.

High utility bills:

An unexpected increase in energy or gas bills is often a red flag that the water heater is not operating efficiently. This could be due to a variety of underlying issues, such as a malfunctioning component or an overworked system struggling to meet demand. Investigating and resolving these issues can help restore efficiency and reduce operational costs.

If any of these symptoms manifest, it is crucial not to delay in seeking professional repair services. Ignoring these warning signs can lead to complete equipment failure, resulting in significant downtime and potential revenue loss. Proactive maintenance and timely repairs are key to ensuring the longevity and reliability of your commercial water heating system.

Why Commercial Repairs Require Specialized Service

Commercial water heaters are larger, more intricate, and handle greater demand than residential systems. This complexity necessitates specialized knowledge for accurate diagnosis and repair. Unlike typical home water heaters, commercial models often include:

  • Larger gallon capacities
  • Multiple burners or heating elements
  • Advanced venting and recirculation systems
  • Connections to extensive hot water distribution networks

It is crucial to engage a licensed commercial plumber who is well-versed in the relevant codes, permits, and technologies. At Crawford Mechanical Services, our team is skilled in diagnosing both tank and tankless commercial systems from leading brands such as Rheem, AO Smith, and Bradford White.

Most Common Causes of Commercial Water Heater Problems


  1. Sediment Buildup: Heavy use in commercial settings accelerates mineral accumulation like calcium and magnesium in water heaters, forming sediment that reduces efficiency. This sediment creates a barrier between water and the heating element, causing overheating and pressure issues. Regular flushing is crucial to maintain performance.
  2. Worn-Out Components: Continuous demand leads to wear on heating elements, gas valves, and thermostats, causing inefficiencies and failures. Routine replacement of these parts is essential to prevent breakdowns and ensure smooth operation.
  3. Improper Installation or Sizing: Incorrect sizing or installation can lead to inconsistent hot water supply and frequent breakdowns. Proper sizing and professional installation enhance performance and longevity.
  4. Neglected Maintenance: Regular maintenance is key to water heater health. Without it, minor issues can escalate to system failure. Routine checks for leaks, component inspections, and cleaning help prevent costly repairs and ensure reliable hot water supply.

Preventative Maintenance Saves Time and Money

 

Routine maintenance of your commercial water heater is essential for its longevity and efficiency, preventing costly emergencies. Regular maintenance can extend the heater's life and prevent disruptions. We recommend flushing the system every 6-12 months to remove sediment buildup, which can cause inefficiency.

Inspect anode rods and pressure relief valves annually to prevent corrosion and ensure safety. Check gas and water connections for leaks to maintain safety and efficiency. Reviewing performance logs can help detect issues early. Crawford Mechanical Services offers service plans with scheduled inspections and tune-ups to prevent problems and ensure reliable operation.

 

When Repair Isn’t Enough

In certain situations, opting for a repair might not be the most effective long-term strategy. If your commercial water heater exhibits any of the following conditions, it may be more prudent to consider alternative solutions:

  • More than 10-15 years old
  • Leaking from the tank
  • Requiring frequent repairs
  • Inadequately sized for current usage

…it might be time to consider replacement. Upgrading to a high-efficiency commercial water heater can reduce your operating costs and improve system performance. Our team can help you calculate return on investment and select the right unit for your business.

Partner with Central Ohio’s Trusted Plumbing Experts

At Crawford Mechanical Services, we’ve been helping homeowners across Columbus, Bexley, Grove City, and beyond with honest guidance and reliable water heater installation for over 30 years. Whether you need a standard replacement or want to explore energy-efficient options, our team is here to walk you through every step of the process.

At Crawford Mechanical Services, we take pride in having assisted thousands of homeowners throughout Central Ohio with our swift and professional water heater repair services. Our team of experienced technicians is dedicated to ensuring your home remains a haven of warmth and comfort, no matter the season.

Whether your water heater requires a minor adjustment or a complete replacement, we are committed to delivering solutions that meet your needs efficiently and effectively.

Don't let a faulty water heater disrupt your daily routine. Reach out to us today to schedule a visit, and let our trusted experts restore your hot water supply with the care and expertise you deserve.