Tankless Water Heater Installation and Repair in Danville and Roanoke
Certified Tankless Techs
Every technician is trained and certified for tankless systems.
Financing Options
Ask about financing for tankless water heater upgrades.
Serving Virginia Since 1947
Davis Heating has served Virginia homeowners for decades.
Endless Hot Water, On Demand
Why Homeowners Switch to Tankless
Running out of hot water mid-shower, a bulky tank taking up closet or utility space, or simply wanting more efficient water heating are all reasons homeowners look into tankless water heater installation and repair. Davis Heating, Cooling, Plumbing & Electric provides tankless water heater installation and repair for homeowners throughout Danville and Roanoke who want hot water on demand instead of a limited tank supply.
Tankless hot water heaters heat water as it flows through the unit rather than storing a set amount in advance, which means hot water doesn’t run out the way it can with a traditional tank, as long as the unit is sized correctly for the home’s demand. Our plumbers can help determine the right size and system for your household and provide professional installation to keep hot water available when you need it.
What's Included
Tankless Water Heater Installation
Sizing a tankless unit depends on how many fixtures might run hot water at once, not just overall household size, since the unit has to keep up with simultaneous demand rather than draw down a stored supply. Davis Heating calculates that based on your home’s actual fixture count and usage patterns.
Installation often requires different venting and gas line sizing than a tank unit needs, since tankless systems draw more instantaneous power to heat water on demand. We account for those differences rather than assuming the existing infrastructure will work as-is.
Ask our team about current offers on tankless water heater installation, or book your appointment to find out what’s available.
Keeping Your System Running
Tankless Water Heater Repair
A tankless unit that’s producing lukewarm water, shutting off mid-use, or displaying an error code usually points to a specific component rather than a failed unit overall. Davis Heating diagnoses the actual cause, whether that’s a scaled heat exchanger or a faulty sensor, before recommending a repair.
Tankless water heater repair often traces back to mineral buildup inside the unit, especially in areas with harder water, since scale accumulation inside the heat exchanger reduces efficiency and can eventually cause a shutdown.
Book your tankless water heater repair to see what offers are currently available, or reach out to our team directly to ask.
Keeping It Running Efficiently
Tankless Water Heater Maintenance
Descaling the unit to remove mineral buildup from the heat exchanger is the core of tankless water heater maintenance, along with checking the inlet filter and venting for blockages. Skipping this for years lets scale accumulate to the point where it affects both efficiency and lifespan.
Tankless water heater service is especially important in areas with hard water, since mineral buildup happens faster than it would with softer water, and catching it early is far easier than addressing a heavily scaled unit.
Current offers on tankless water heater maintenance vary throughout the year, so book your service or ask our team what’s available right now.
Danville and Roanoke homeowners rely on Davis Heating for tankless water heater installation and repair.
What to Expect
Our Tankless Water Heater Process
Here’s what happens once you schedule tankless water heater service with Davis Heating.
Schedule a Visit
Call or book online, and we’ll find a time that works for your schedule.
Evaluate Your Needs
A technician assesses your hot water demand or diagnoses an existing unit’s issue.
Review the Plan
We explain the recommended installation, repair, or maintenance before any work begins.
Complete the Work
Our team installs, repairs, or services the unit according to code.
Test the System
We confirm proper operation and answer any last questions before we leave.
What Danville & Roanoke Homeowners Are Saying
From Homeowners We've Worked With
A tankless system only delivers on its promise if it’s sized and installed correctly from the start. Read what Danville and Roanoke homeowners have shared about their experiences with our tankless installation team.
Plumbing Services We Provide
Plumbing Services in Virginia
A tankless unit is one upgrade among many a home’s plumbing might need. Davis Heating covers the rest of the system too, from leak detection and sump pumps to full repiping in homes with aging supply lines.
Tankless Versus Tank
How Tankless Hot Water Heaters Differ From a Traditional Tank
A traditional tank keeps a set volume of water hot at all times, which means standby energy loss even when nobody’s using hot water. Tankless water heaters only heat water when a fixture calls for it, which cuts that standby loss but requires more instantaneous power to heat water on the spot.
Space savings are another factor, since a tankless unit mounts on a wall and takes up a fraction of the footprint a tank requires, which matters in smaller utility closets or homes where storage space is limited.
Sizing and Fixture Demand
Sizing a Tankless System for Simultaneous Use
A tankless unit sized for a single bathroom can struggle if a shower and a dishwasher run at the same time, since the unit has a maximum flow rate it can heat at once. Davis Heating accounts for peak simultaneous demand, not just average usage, when recommending a unit.
Some homes benefit from multiple smaller units placed closer to high-demand fixtures rather than one large central unit, depending on the home’s layout and how far hot water has to travel to reach certain fixtures.
Ready to Get Started?
Book Your Tankless Water Heater Service Today
Running out of hot water, a bulky old tank, or a tankless unit that’s underperforming are all worth a call. Schedule your tankless water heater service, and we’ll get a technician out to your Danville or Roanoke home soon.
Common Questions
Tankless Water Heater FAQs
Homeowners weighing a tankless system usually start with the questions below. If yours isn’t here, give us a call, and we’ll talk it through.
Does a tankless water heater save energy compared to a tank?
Yes, since it eliminates the standby energy loss that comes with keeping a full tank of water hot around the clock.
How long does tankless water heater installation take?
Most installations take a few hours to a full day, depending on whether venting or gas line adjustments are needed.
Why is my tankless water heater giving me lukewarm water?
Scale buildup inside the heat exchanger or a sizing mismatch for current demand are common causes, both of which a technician can diagnose.
How often should tankless water heater maintenance be done?
Annual descaling is a reasonable baseline, though homes with harder water sometimes benefit from more frequent service.
Can a tankless unit run out of hot water as a tank can?
Not in the same way, but it can be overwhelmed if too many fixtures draw hot water at once beyond what the unit is sized to handle.
We're Happy to Help
Have a question about tankless water heater installation, repair, or maintenance? Reach out anytime, or go ahead and get a technician scheduled. Davis Heating is ready to help.
Where We Work
Tankless Water Heater Services Across Danville and Roanoke
Davis Heating provides tankless water heater installation and repair in Danville and Roanoke, VA, and the surrounding communities. Decades of plumbing work in this region mean our technicians are well-versed in both tank and tankless systems.
Don't Wait on Tankless Water Heater Problems
Schedule Your Tankless Water Heater Service Now
Enjoy dependable hot water without the limitations of a traditional tank. Call Davis Heating, Cooling, Plumbing & Electric for expert tankless water heater service, from repairs and maintenance to complete system replacement.