When it’s time to replace or upgrade your water heater, one of the first decisions you’ll face is whether to choose a traditional tank-style water heater or a tankless water heater. Both options offer unique benefits, and the best choice depends on your home, your hot water usage, and your priorities. At DJB Plumbing Services, we provide expert plumbing maintenance to help you understand the differences, ensuring you can make the right decision with confidence. Trust us for reliable plumbing solutions tailored to your needs.
These are the most common water heaters found in homes. They store and heat a large volume of water (usually 40–60 gallons) in a tank that keeps hot water ready until it's needed. DJB Plumbing Services often recommends these systems for their reliability in many households.
How it works: The tank fills with water and maintains it at a set temperature, ready to send hot water to your taps when called.
Pros:
- Lower upfront cost
- Simple and familiar technology
- Easier installation
- Works well for homes with low to moderate hot water demand
Cons:
- Limited supply—when the tank runs out, you wait for it to reheat
- Less energy efficient (keeps water hot even when you're not using it)
- Larger physical footprint
For expert plumbing maintenance or reliable plumbing solutions, consulting with professionals can help you determine if a tank water heater is right for your home.

Tankless water heaters heat water only when you need it, rather than storing it in a tank. DJB Plumbing Services sizes, installs, and services these high-efficiency systems correctly - so you get endless hot water and lower energy bills, done right the first time. We're also Navien certified, factory-trained on one of the industry's leading tankless brands.
How it works: When you turn on a hot water tap, cold water travels through the unit and is heated instantly by a powerful gas burner or electric element. Because there's no tank, you get a continuous supply of hot water on demand — and no energy is wasted keeping a tank hot around the clock.
Pros:
- Endless hot water — never run out mid-shower
- More energy efficient (only heats water when you need it)
- Compact, wall-mounted design saves space
- Longer lifespan — often 15–20 years with proper maintenance
Cons:
- Higher upfront cost
- May require gas line, venting, or electrical upgrades
- Output can be limited if multiple fixtures run at once in larger homes
As a licensed and insured plumbing company, DJB Plumbing Services will help you decide whether a tankless system is right for your home and handle the full installation to code — including gas, venting, and electrical connections. Serving Skokie, Evanston, Lincolnwood, and the surrounding North Shore communities.

DJB Plumbing Services · Serving Skokie, West Rogers Park, Evanston, Lincolnwood, Kenilworth, Morton Grove & Winnetka
Please reach us at info@djbplumbingservices.com if you cannot find an answer to your question.
As a rule of thumb, if your unit is under 8–10 years old and the problem is a single failed part, repair is usually worth it. If it's older, leaking from the tank itself, or rusty water is coming out, replacement is often the better call. Our licensed plumbers will inspect your heater and give you a straight recommendation based on its age and condition.
A conventional tank water heater typically lasts 8–12 years, while a tankless unit can run 15–20 years with proper maintenance. If your heater is approaching the end of its life, it's smart to plan a replacement before it fails and leaves you without hot water - something we help homeowners across Evanston, Skokie, and Lincolnwood do every week.
Common causes include a tripped circuit breaker, a failed heating element (electric units), a bad thermocouple or pilot light issue (gas units), or a broken thermostat. Sometimes it's simply sediment buildup in the tank. Our team diagnoses the exact cause and fixes it the same day whenever possible.
Yes. DJB Plumbing Services installs both traditional tank and tankless (on-demand) water heaters, and we're Navien certified - factory-trained to install and service Navien's tankless systems correctly. Tankless units save space, lower energy bills, and provide continuous hot water. We'll help you choose the right size and type for your home and handle the full installation to code — including gas, venting, and electrical connections.
Yes. Every installation includes removing, draining, and hauling away your old unit at no extra hassle to you. We leave the area clean and your new heater tested and running before we go.
Absolutely. We're a licensed and insured plumbing company, and every installation meets local codes, including proper venting, temperature-and-pressure relief valves, and permits where required. Cutting corners on a water heater can be dangerous - we never do.
A leaking water heater should be addressed quickly. A small leak from a valve or fitting can often be repaired, but a leak from the tank itself usually means the unit needs replacing. Either way, shut off the water supply to the heater and call us - a leaking tank can cause serious water damage if left alone.
That sound is usually sediment that has built up at the bottom of the tank. It reduces efficiency and shortens the heater's lifespan. Flushing the tank often solves it. If you're hearing new noises, have it checked before the buildup causes bigger problems.
DJB Plumbing Services is a family-owned, licensed, and insured plumbing company serving Skokie, West Rogers Park, Evanston, Lincolnwood, Kenilworth, Morton Grove, Winnetka, and the surrounding North Shore communities.
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