Hot water is essential – whether at home or in your business. When your water heater breaks down, you need fast, reliable service. No hot water is more than an inconvenience — it disrupts your entire household. ONG Plumbing & Heating gets you back up and running fast, with same-day service available for most repairs and replacements.
A failing water heater gives you warning signs before it gives out completely — strange noises, inconsistent temperatures, discolored water, or a unit that’s simply getting old. Catch it early and a repair may be all you need. Wait too long and you’re looking at an emergency replacement, or worse, water damage from a leaking tank.
ONG Plumbing & Heating handles everything from a straightforward repair to a full system replacement. We work on all major brands of tank and tankless water heaters, carry the most common units on our trucks, and give you a clear upfront price before any work begins.
Common repairs we handle:
Water that turns lukewarm too quickly, unusual noises, visible corrosion and moisture near the unit can indicate different problems. An electric heater may have an issue with a heating element or thermostat, while a gas-fired unit has other components that require appropriate diagnosis. A leak at an external connection is different from a failed storage tank. The age of the equipment, maintenance history and symptoms help determine whether repair is practical or replacement should be considered.
Water heaters differ in fuel type, capacity, recovery rate, physical dimensions and venting requirements. A replacement should be selected for the household’s hot-water needs and the existing installation conditions. Gas, propane and electric models are not interchangeable without evaluating the required connections and code requirements. A larger tank is not automatically the best solution. We recommend reviewing the current unit’s rating plate, location, access and available utilities before choosing equipment.
Water pressure and thermal expansion can affect water heater performance and safety. In some closed plumbing systems, a properly sized and charged thermal expansion tank may be required. The temperature-and-pressure relief valve is a critical safety device and its discharge must not be capped or blocked. Repeated relief discharge should be investigated rather than ignored. A plumber can evaluate relevant system conditions and explain which components and corrections are appropriate for the installation.
Moisture near a water heater may originate at the cold-water inlet, hot-water outlet, drain valve, relief discharge or the tank itself. Identifying the source matters because some external connections are repairable while a leaking tank may require replacement. Avoid contact with wet electrical equipment and do not interfere with gas controls if you are unfamiliar with the appliance. For active leakage, follow safe shutdown guidance and seek qualified help. Water-damaged finishes may need separate restoration.
A water heater replacement involves removing or disconnecting the old unit safely, setting the new equipment and making compatible water, energy and venting connections as applicable. The installation must follow the manufacturer’s instructions and local requirements. Clearances, drain pans, seismic or other location-specific provisions, and discharge piping may need review. After installation, the system should be checked for leakage and correct operation. Any additional modifications should be discussed before work begins.
Sediment accumulation, water quality and operating conditions can influence the service life of a storage water heater. Manufacturer-recommended maintenance may include inspections and flushing, but older units should be evaluated before attempting procedures that could disturb worn valves. If hot water runs out quickly, the cause may involve household demand, a heating component or the size of the unit. Ask whether a repair is economical and whether the replacement quote includes required accessories and disposal.
ONG Plumbing serves Bethlehem and nearby Lehigh Valley communities with water heater plumbing services. When contacting us, share the fuel type, approximate age, capacity and symptoms of the existing unit. A photograph of the rating label and installation area can help clarify the equipment. Let us know if there is active leakage, no hot water or a recurring relief-valve discharge. We can discuss repair or replacement options and provide a quote based on the proposed work.
A water heater replacement is an unexpected expense for most homeowners — and it’s rarely one you can plan for. That’s why ONG Plumbing & Heating offers flexible financing options to help you get the hot water system your home needs without putting a strain on your budget. With payment terms available up to 36 months, you can spread the cost of your new water heater into manageable monthly payments and get the job done right without delay.
Ask about financing options when you call — we’ll walk you through what’s available and help you find a plan that works for your situation.
Traditional tank water heaters last between 8 and 12 years with proper maintenance. Tankless units can last 20 years or more. If your tank unit is approaching 10 years and starting to show performance issues, replacement is usually the more cost-effective long-term decision — especially when you factor in rising energy costs from a deteriorating unit.
Yes, ONG Plumbing offers emergency plumbing services to quickly resolve urgent issues such as burst pipes, severe leaks, and overflowing fixtures.
If the unit is relatively new and the problem is isolated — a faulty thermostat, a worn anode rod, a misbehaving pilot light — a repair usually makes sense. If the unit is over 10 years old, has multiple issues, is showing signs of internal corrosion, or has a leaking tank, replacement is typically the smarter investment. Our technicians give you an honest recommendation based on the actual condition of your unit — not on what generates a bigger invoice.
The right size depends on the number of people in your household and your peak hot water usage. As a general guide, a family of four typically needs a 50-gallon tank unit. For tankless systems, sizing is based on flow rate — how many fixtures you might run simultaneously — rather than storage volume. We assess your home's specific needs during the visit and recommend the correctly sized unit before any purchase is made.
It is recommended to have a professional plumbing inspection at least once a year to detect potential problems early and prevent costly repairs.
For many households, yes — especially when you factor in the longer lifespan and lower monthly energy costs. A tankless unit typically pays for the price difference within 5 to 8 years through energy savings alone, and continues saving money for the remaining 12-plus years of its lifespan. The right answer depends on your household's hot water usage, your current energy costs, and how long you plan to stay in the home. Our technicians will walk you through the numbers honestly so you can make the right call for your situation.
Yes, we do offer a financing for tank and tankless water heater replacement.
This could be due to a faulty heating element, thermostat issue, or sediment buildup inside the tank. A professional inspection can identify the exact problem.
ONG installs and services all major water heater brands including Rheem, Bradford White, A.O. Smith, Navien, Rinnai, Noritz, and State. We recommend units based on reliability, parts availability, and fit for your home — not based on brand partnerships or margins.
Yes. Where permits are required by local code in the Lehigh Valley, ONG handles the permit application process on your behalf. All installations are completed to current Pennsylvania plumbing code standards and are ready for inspection.
Yes, all technicians at ONG Plumbing are trained professionals and fully licensed and insured for your safety and peace of mind.
All water heater repairs and installations completed by ONG are backed by a 1-year parts and labor warranty. If the same issue returns within 12 months of our repair, we come back and fix it at no charge. Manufacturer warranties on new units apply separately — we walk you through the details at the time of installation so you know exactly what coverage you have.
• Lehigh County
• Northampton County
• Bucks County
• Monroe County
• Carbon County
• Bethlehem
• Allentown
• Easton
• Macungie
• Center Valley
• Hellertown
No pressure, no obligation. One of our licensed plumbers will assess your water heater problem, explain your options clearly, and give you a written estimate — completely free. Most jobs can be booked same day.