101 S Main St, Medford, NJ 08055 - Office Hours | Mon. – Fri. 8 a.m. to 4:30 p.m.
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609-654-8811
Harriett’s Plumbing & Water Treatment proudly serves homeowners throughout Marlton and Evesham Township with expert tankless water heater installation, replacement, repair, and maintenance.
Our licensed technicians install high-efficiency gas tankless systems designed for reliable performance and long-term energy savings, with every project matched to your home’s plumbing and your
family’s hot water habits.
Tank-style water heaters spend the day keeping a large volume of water hot, using energy even when nobody’s home. Tankless systems heat water only as it’s needed, so nothing gets wasted while it sits unused.
Homeowners across Marlton and Evesham Township point to advantages like:
Whether it’s back-to-back showers, laundry, or the dishwasher all running together, a properly sized system is built to keep pace with a busy home.
Most homeowners don’t think about replacing a water heater until it stops working altogether, but upgrading before that point usually prevents costly emergencies and water damage.
Signs it may be time to replace your current unit include:
We’ll take an honest look at your existing system and tell you plainly whether repair or replacement is the better long-term move.
Selecting a tankless water heater is about more than picking a brand — getting the sizing right is what determines how well the system will actually perform.
Before recommending a unit, we look at:
This step is what keeps efficiency and performance strong for years after installation.
Homes throughout Marlton, Medford and Evesham Township see a range of water conditions that can affect plumbing equipment over time. Since Harriett’s also handles residential water treatment, we evaluate water quality as part of every tankless installation.
We check for things such as:
Catching these issues early reduces scale buildup, keeps efficiency high, and extends the life of your new system.
A qualifying high-efficiency tankless water heater installation may make you eligible for manufacturer and utility rebates worth up to $850, depending on the equipment and current programs.
We review every available rebate before beginning installation so you get the maximum savings you’re entitled to.
A tankless upgrade is often more affordable than homeowners expect. Depending on eligibility, you may qualify for:
We’ll go over the details with you and help you land on a plan that works for your budget.
| Service | Cost |
| Professional Tankless Water Heater Installation | Starting at $5,750 |
| Potential Rebates | Up to -$850 |
| Estimated Net Investment | Approximately $4,900 |
| 84-Month Financing | Starting around $58.33 per month* |
*Actual pricing depends on equipment selection, installation complexity, rebate availability, and financing approval.
Every project follows a consistent, proven process:
Before we leave, we verify the system is working correctly and explain how to keep it running well.
Our maintenance visits typically cover:
Homes with harder water often benefit from yearly service, while others can go two years between visits.
Our goal is a system that performs efficiently today and keeps your family in hot water for decades to come.
With routine maintenance, many premium systems provide twenty years or more of service.
Yes — we size every installation to your home’s peak hot water demand.
Yes, we obtain permits and coordinate inspections whenever necessary.
Yes — it helps maintain efficiency, reduce repairs, and extend the life of your system.
Qualified homeowners can choose from several programs that make upgrading more affordable.
Ready for endless hot water and better energy efficiency? Contact Harriett’s Plumbing & Water Treatment today to schedule your free estimate for tankless water heater installation or replacement in Marlton, NJ. We’ll evaluate your plumbing system, explain your rebate and financing options, and recommend the ideal high-efficiency unit for your household.