Tankless Water Heater Installation & Repair
Tankless Water Heater Installation & Repair
Tankless units heat water only when you need it instead of storing it around the clock — wall-mounted, energy-saving, and built to outlast a conventional tank by a decade or more. Installed and serviced by licensed master plumbers.
What We Do
How We Help With Tankless Water Heaters
On-demand hot water without the tank — here’s how we get you there and keep it running.
New Install
Tankless Installation & Conversion
Switching from a tank or building new? We size and install a tankless system matched to your household’s hot water demand.
Gas Or Electric
Gas & Electric Tankless
Gas units ignite a burner, electric units use a heating element — we help you weigh the tradeoffs for your home.
Fast Response
Repair & Troubleshooting
No hot water, error codes, or a cold-water sandwich mid-shower? We diagnose tankless systems fast and fix them right.
Extend It's Life
Descaling & Maintenance
Regular flushing clears mineral buildup from the heat exchanger, protecting the long lifespan tankless units are built for.
Reclaim Your Space
Space-Saving Wall Mount
No bulky tank to hide — free up the basement or utility closet, or mount it in the garage.
Built to Last
20–30 Year Lifespan
With replaceable parts and no standing water to corrode, tankless units often outlast a conventional tank heater by a decade or more.
Why Homeowners Choose Atomic
We run fourteen trucks across Hampton Roads, staffed by licensed journeymen with over 155 years of combined experience. We believe in top-rate service at a fair price — and we stand behind every job we finish.
- Convenient appointment scheduling — booking that fits your calendar, not ours.
- Photo of your pro before arrival — know who's coming before they knock.
- Licensed, bonded & insured — peace of mind on every job.
- Best of Virginia Beach — winner for 6 consecutive years.
Recognized By
- Best of Virginia Beach — 6 years running
- BBB Accredited
- Angi Super Service Award
Frequently Asked
Tankless Water Heater Questions, Answered
How does a tankless water heater work?
Unlike a tank unit, a tankless heater doesn’t hold or continuously heat water. When you turn on the tap, flow sensors detect the demand and trigger the burner or electric heating element, which heats water as it passes through — so it only runs when you actually need hot water.
Does a tankless water heater take up more space?
Less, actually. A conventional 40–60 gallon tank needs a dedicated, ventilated spot in the basement or a utility closet. A tankless unit mounts on the wall, so you get that space back — in a warm climate, it can even go in the garage.
Does tankless last longer than a conventional water heater?
Yes. Conventional tank heaters last around 6–12 years, while tankless units typically last 20–30 years. Because they don’t store mineral-filled water, they avoid the corrosion and scale buildup that eventually rusts out a tank — and their parts are replaceable, extending the life further.
What is a “cold-water sandwich”?
That few seconds of cold water you sometimes get mid-shower after someone else just showered. A little leftover hot water was sitting in the pipes between the heater and the tap; once it runs out, you get a cold blast for a few seconds before fresh hot water catches up.
How long have water heaters been around?
Longer than you’d think — the modern water heater was invented in Pittsburgh, PA, back in the 1800s, replacing the old routine of heating water on the stove and pouring it into a bath. Tankless is just the latest step in that evolution.
When you see the blue truck, help has arrived.
Every Atomic truck is a fully stocked workshop on wheels — radio-dispatched, GPS-tracked, and driven by a licensed master plumber. Most repairs finish in a single visit.
55+
Years in Tidewater
24/7
Emergency Dispatch
Book a Friendly Visit
Let's get it fixed.
- Clear communication — a text 15 minutes out, with your pro's name.
- Transparent pricing — upfront quotes before any work begins.
- Clean & respectful — shoe covers on, tidy work, wrapped up before we leave.
Prefer to call? 757.448.3620