Tankless Water Heaters · Clarksburg, MD
Tankless Water Heaters
Endless hot water.
A tankless water heater heats water the instant you need it, so you never run out and never pay to keep a tank hot all day. We install, repair, replace, and convert homes to tankless across Clarksburg, Germantown, Gaithersburg, and Montgomery County, sized and set up so it works the way it should from day one. Searching for tankless water heater installation near me? You found your local crew.
Endless Hot WaterLicensed & InsuredEnergy Efficient
Book OnlineCall Now
On demand
Hot water that never quits
The basicsHow a tankless water heater works
Instead of storing and reheating a tank of water around the clock, a tankless unit heats water only when you open a hot tap. Water flows through a powerful gas burner or electric heat exchanger and comes out hot in seconds, for as long as you need it. When you turn the tap off, it stops. That is why tankless units use less energy, take up a fraction of the space, and can deliver hot water for as long as the shower runs. They also last far longer than a traditional tank, which is why so many Clarksburg and Montgomery County homeowners upgrade. Prefer a traditional tank? We do those too.
What we do
Tankless water heater services
Installation, conversions, repair, and the maintenance that keeps a tankless running for decades.
Tankless Installation
We size the unit to your home’s hot water demand and install it correctly, including gas, venting, and water connections.
Tank to Tankless Conversion
Switching from an old tank? We handle the full conversion, from removing the tank to upgrading the gas and venting it needs.
Tankless Repair
Error codes, no hot water, ignition or gas burner faults, and flow problems diagnosed and fixed by techs who know these units.
Descaling & Maintenance
Maryland hard water leaves scale inside the heat exchanger. Regular descaling keeps your unit efficient and protects the warranty.
Gas & Electric Tankless
We install and service both gas and electric tankless heaters, and help you choose the right fit for your home and budget.
Tankless Replacement
If your tankless is past its prime, we swap it for a new high efficiency unit with minimal disruption.
How it works
Hot water the moment you ask for it
No tank, no waiting, no standby loss. Here is what happens when you open the tap.
1
You open a hot tap
A shower, sink, or appliance calls for hot water anywhere in the home.
2
Flow sensor fires
The unit senses the water moving and instantly ignites the burner or elements.
3
Water heats on the move
Water races through the heat exchanger and comes out hot within seconds.
4
Endless, then off
It keeps heating as long as you need, then shuts down completely when you stop.
Why homeowners switch
The benefits of going tankless
It is one of the few upgrades that pays you back every month while making daily life easier.
Endless hot water
Long showers, back to back, plus laundry and dishes, without ever running cold.
Lower energy bills
No reheating a full tank all day means less wasted energy and real monthly savings.
Space saving
A unit the size of a small suitcase mounts on the wall and frees up your floor.
Lasts much longer
A well maintained tankless can run 20 years or more, roughly double a typical tank.
No tank to burst
With no stored tank of water sitting in your home, there is far less risk of a big leak.
Fresh, not stored
You get freshly heated water on demand rather than water that has sat in a tank.
Ready for endless hot water?
Book OnlineCall (301) 972 2223
Know your options
Gas, electric, and the right size
The key to loving a tankless is sizing it to how much hot water your home uses at once. We get that part right.
Gas Tankless
The most common choice for whole home use. High output handles several fixtures at once, with proper venting that we install.
Electric Tankless
Compact and simple with no venting, great for smaller homes, additions, or point of use spots like a single bathroom.
Sizing by Flow Rate
We calculate your peak demand in gallons per minute, counting the fixtures you run together, so it never falls behind.
Not sure tankless is right for you? We will compare it honestly against a traditional tank water heater for your home.
Built for Maryland homes
Hard water and your tankless
Tankless units are efficient, but Maryland hard water leaves scale on the heat exchanger that can choke performance and void a warranty if ignored. The fix is simple: descale on a schedule. Many manufacturers require it, and we make it easy with an annual visit.
- Descale the heat exchanger about once a year
- Clean the inlet filter so flow stays strong
- Pair it with whole house filtration to slow scale
- Keep the venting and gas connections checked and clear
Annual peace of mind
Add it to a membership
Our membership includes an annual tankless descaling and inspection, which keeps your unit efficient and your manufacturer warranty intact.
The people in your home
A crew you are glad to let in
Every technician is part of our own trained, background checked team, not a subcontractor. We size your system right, install it cleanly, and show you how to get the most out of it.
From our neighbors
What your neighbors say
Rating
S D.
July 16, 2026
Highly recommend Clarksburg Plumbing! They accommodated my schedule right away. John and Maddie were amazing!! They took care of my pipe repair quickly and efficiently! 10/10 recommend!
Jim C.
July 16, 2026
John and Maddie were the ultimate professionals. Came on time. Clear estimate. Excellent work fixing my pressure relief valve, which had been improperly installed by another plumber. Clarksburg are my go to plumbers from now on.
Ruth T.
July 15, 2026
Arrived on time, explained entire process, had plan a,b,c, in place, Did the best job I could ask for, and even show me the hole in my main line in the pipe. Highly recommend this company for all your plumbing needs.
Pamela B.
July 15, 2026
Absolute best plumbers I have ever used. Needed them a few times recently and each time they were so professional, kind and resolved each problem the first time around. This last issue took them several hours to fix. They explained everything along the way and gave a very fair price for a lot of work. They also work very cleanly! I will never use another plumber!
Al B.
July 9, 2026
I had Seth come out to change my outdoor spiked. He was in and out in no time and did a great job!
Duh S.
July 7, 2026
Called yesterday, they came today, had a clogged kitchen sink. The service was quick and Professional. Great job!
Praneeth M.
July 7, 2026
Garrett did a fantastic job snaking our clogged drain. He was incredibly professional, efficient, and made sure everything was completely clean before he left.
Andrea B.
July 7, 2026
I needed a water valve installed for my new fridge and a new faucet installed in upstairs bathroom. Seth was amazing. He came out and really listened to me and my concerns. We even called the company that was going to deliver my new fridge so he would have a better understanding of what he needed to do his job. It made me feel at ease with the whole process. He is even coming back later in the week to install new fridge once it’s delivered. I will absolutely call them again.
Shariq S.
July 6, 2026
Seth was great explaining the descaling process and performing it with precision.
Sarah R.
July 1, 2026
Seth replaced our hose bib in the front yard and did a great job! It was hot out but he still took the time to make sure everything was good to go. I called Clarksburg Plumbing yesterday and they were able to come out next day. Very professional.
B H.
June 30, 2026
Seth and his partner were very professional and did an awesome job fixing the main water valve. I highly recommend them.
CandP H.
June 29, 2026
Amazing experience with Clarksburg Plumbing LLC! Our well pump needed replacement. Seth showed up right on time, was very professional, knew what he was doing and pricing was fare (they showed me all estimates upfront and explained everything). Any future plumbing needs and Clarksburg Plumbing will be my first call. I’ll also ask for Seth by name if I can get him!!
Sarah B.
June 26, 2026
We had a pinhole leak suddenly appear in our outdoor hose bib, and Clarksburg Plumbing was able to provide next-day service, which we really appreciated. Our technician, John Brown, arrived right on time after giving us a 30-minute courtesy call. John quickly diagnosed the problem, explained everything clearly, and provided an accurate assessment of what needed to be done. He completed the repair in under two hours, and the quality of his work was excellent. Before leaving, he even took the time to share some helpful tips on how to prevent similar issues in the future. John was friendly, professional, knowledgeable, and efficient from start to finish. We couldn’t have asked for a better service experience. I highly recommend Clarksburg Plumbing and especially John Brown for anyone needing reliable, high-quality plumbing work.
Neil D.
June 26, 2026
Great experience. Team arrived on time and were efficient. Seth explained everything with even gave me some tips and pointers to look out for moving forward. David made sure everything was cleaned up before they left.
Eliot C.
June 12, 2026
Clarksburg Plumbing installed an external bib; after a couple of months there was a mechanical failure in the vacuum breaker. They responded within 24 hours, fixed it, no charge. Seth was prompt, courteous and efficient. We will be happy to use their services again.
Joseph A.
June 10, 2026
Franklin and Cris — great job and great guys. Everything went smoothly with water line replacement. A tough job. Thanks for your hard work. Clarksburg Plumbing is the best!
Joshua R.
June 5, 2026
Cris and Franklin from Clarksburg Plumbing did incredible work at our home fixing an underground water service leak. They encountered complications but went to plan B efficiently and skillfully and got the job done well and in a timely manner. They also answered all our questions patiently and taught us a lot of why they made the decisions they made. We are very pleased with their work and plan to recommend them and all of Clarksburg Plumbing to our friends and neighbors.
David N.
June 2, 2026
Franklin and Cris were especially helpful, informative and instructive. The rest of the instructive, polite and professional. Overall a good experience for me and my wife.
Stephen C.
May 17, 2026
We had a clog in our septic line. The Clarksburg Plumbing crew located the troublesome area using a camera and then removed the clog and tested the line. They then remounted the toilet with a new wax ring and cleaned the area. Overall, a great experience!
Tom W.
May 7, 2026
Seth did a great job today 5/7/2026 installing a new toilet for us. Second time he has helped us through Clarksburg Plumbing. Ask for him by name and you won’t be disappointed!! Thanks Seth!
peter D.
April 30, 2026
These guys are diligent, courteous and did a great job! They were friendly, helpful and thorough - I'd recommend Clarksburg plumbing any day of the week and twice on Sundays
Seth K.
April 28, 2026
Seth was absolutely amazing! He was very courteous and knowledgeable about his profession. He arrived on time and worked the entire time. He kept me in the loop the entire way as to what he was doing. He diagnosed two leaks within our toilet system and readily fixed them. Clarksburg Plumbing should be honored to have such an amazing employee as him.
Good questions
Tankless water heater FAQ
What homeowners ask us most about going tankless.
How long does a tankless water heater last?
With regular descaling, a tankless unit commonly lasts 20 years or more, roughly double the life of a traditional tank. Skipping maintenance in hard water areas like ours is the fastest way to cut that short.
Do tankless water heaters really save money?
Yes, on energy. A tankless only heats water when you use it, so you are not paying to keep a tank hot 24 hours a day. The upfront cost is higher, but the monthly savings and longer lifespan make up for it over time.
Will I ever run out of hot water?
Not if it is sized right. A tankless makes hot water continuously, so it will not empty like a tank. The key is matching the unit to your peak demand, the fixtures you run at the same time, which we calculate before we install.
Is tankless worth the higher upfront cost?
For most homes that use a lot of hot water or want endless supply, yes. You gain space, lower bills, and a longer lifespan. For a small home with light use, a quality tank may make more sense, and we will tell you honestly which fits.
Should I get gas or electric tankless?
Gas units deliver higher flow and suit whole home use, but need proper venting and a gas line. Electric units are compact, simple, and great for smaller homes or single points of use. We help you choose based on your home and demand.
Do tankless heaters need maintenance?
Yes. The most important task is descaling the heat exchanger about once a year, especially with Maryland hard water. It keeps the unit efficient and is often required to keep the manufacturer warranty valid. We include it in our membership.
Can you convert my old tank to tankless?
Absolutely. We handle the full conversion, including removing the old tank and upgrading the gas, venting, and connections the tankless needs. We will assess your setup and give you a clear, upfront quote first.
Are you licensed, insured, and available for emergencies?
Yes. We are fully licensed and insured, every technician is background checked, and we are available 24/7 for plumbing emergencies across Clarksburg, Gaithersburg, Germantown, and the surrounding Montgomery and Frederick County area. Call 301 972 2223 any time.
Ready for endless hot water
Go tankless with us.
Let's Flow.
Thinking about an upgrade, or need your tankless serviced? Book online or call and talk to a real neighbor. We are here 24/7 for emergencies.
Book OnlineCall (301) 972 2223