
Tankless Water Heater Installation
Tankless water heater installation across the DMV. Serving DC, Maryland, and Virginia from Suitland, MD.
A tankless water heater makes hot water the moment you ask for it and never runs out. No tank to fill, no tank to run dry, and no tank taking up a corner of your basement or closet.
Going tankless is a different install than a tank swap. The venting, the gas sizing, and the water connections all change, and getting them wrong is how a great unit turns into a headache. We have installed them across the DC metro for years, and we do the whole conversion to code.
Is tankless right for your home
Tankless is not automatically the right answer for every house. It shines for households that run out of hot water, families with staggered schedules, and homes where floor space is tight. We look at your gas service, your demand, and your budget and give you a straight answer.
- Whole-home tankless units sized to your actual demand
- Gas line upsizing when the new unit needs more supply
- Proper venting runs, done to code and permitted where required
- Tank-to-tankless conversions with the old tank hauled away
- Recirculation options so the far bathroom gets hot water fast
What to expect on the day
When we arrive, the first thing we do is listen and look, because the visible symptom is not always the real problem. We diagnose the actual cause, explain it to you in plain language, and give you an honest price before any work starts. You approve it, and only then do we begin. When the work is done, we test it, walk you through what we did, and leave the space clean. That is the same process on every job, whether it is a small repair or a major replacement.
Whatever the job, you get one licensed Master Plumber from start to finish, an honest price before we begin, and a plumber who cleans up after himself. Ready to get it handled? Request a free quote or call us at any hour. Want to see the kind of work we do? Take a look at our recent projects.
A conversion done right the first time
The most common tankless complaint is a unit that was slapped onto an old tank setup without touching the gas or venting. It short-cycles, underperforms, and fails early. We size the gas, run the venting correctly, and commission the unit so it performs the way the manufacturer intended.
You get the honest math up front too. If a standard tank actually fits your home and budget better, we will say so.
- Gas and venting sized correctly, not reused blindly
- Commissioned and tested before we leave
- Honest tank-vs-tankless advice

Why the DMV calls Jackson Plumbing
There are plenty of plumbers in the Washington metro. What sets us apart is not a slogan, it is how the work actually gets done. When you call, a real person picks up, 24 hours a day. When we come out, we give you a real arrival window instead of a vague promise to show up sometime. And when we diagnose the problem, we put an honest price on it before we touch anything, so there are never surprise line items on the invoice.
Brandon Jackson has spent nearly three decades in this trade, and he built the business around a simple idea: treat people the way you would want to be treated in your own home. That means explaining what is wrong in plain language, giving you honest options instead of the most expensive one, and leaving the space cleaner than we found it. It is why so much of our work comes from repeat customers and neighbor-to-neighbor referrals across DC, Maryland, and Virginia.
We are a licensed Master Plumber, license PLM40000116, fully credentialed in Maryland (109495), Virginia (2710083375), and with WSSC (P-83640), plus ASSE certification and a BBB A-rating. That licensing matters: the code-sensitive work, the permitting, and the connections all get done right, so your plumbing passes inspection and holds up for years. Whether the job at your home is a quick repair or a major replacement, you get the same experienced plumber and the same honest standard.
It also means we stand behind what we do. If something we installed or repaired ever acts up, you call us and we come back, because our reputation across the DMV is worth more than any single invoice. That is the difference between a plumber who is here today and a plumber who has spent nearly thirty years building a name he intends to keep. We would rather do one job right and earn a customer for the next twenty years than rush through three and lose all of them.
Honest pricing, no hidden fees
The part people dread most about calling a plumber is the bill, because too many outfits hide fees, pad the invoice, or quote one number and charge another. We do not work that way. You get a clear, honest price before any work begins, and that is the price you pay. No surprise line items, no mystery charges, no upsell to the most expensive option when a simpler fix will do. If we think a repair will hold, we tell you, even when a replacement would earn us more. That kind of straight dealing is rare in this trade, and it is exactly why our customers keep calling and keep referring their neighbors. When you are ready to get it handled, call (202) 840-1998 any hour, or tell us what is going on and Brandon will get right back to you.
See Why Clients Recommend Us
Brandon Jackson is one of the best plumbers I have ever met. He is professional, honest, and did great work.
Celestine RobinsonGoogle ReviewsHe is a man of his word. He shows up when he says he is coming and he cleans up behind himself.
T. T.Google ReviewsTheir service was prompt, professional, and reliable. The pricing was fair, with no hidden fees.
Wesline ReynaGoogle ReviewsBrandon was extremely knowledgeable and professional from the moment he arrived.
M. Owens JonesGoogle ReviewsStraight Answers
How is a tankless install different from a tank swap?
A tankless unit needs different venting, often a larger gas line, and new mounting and connections. It is a conversion, not a swap, which is why it takes longer and why the installer’s skill matters more.
Will a tankless heater really never run out of hot water?
It heats water as it flows, so it does not run out the way a tank does. The unit does have a flow limit, which is why sizing to your household’s real demand matters. We size it right so showers and laundry can run together.
Does my gas line need to be upgraded?
Sometimes. Tankless units draw more gas while running than most tanks. We check your existing service and upsize the line if the new unit needs it, all to code.
How long does a tankless installation take?
A straight replacement of an existing tankless is quick. A first-time conversion from a tank usually takes the better part of a day because of the venting and gas work. We give you a real window before we start.
Is tankless worth the higher up-front cost?
For many DMV homes, yes: lower operating cost, longer service life, and endless hot water. For lighter use, a tank can still be the smarter buy. We will give you the honest math for your house.
Need a plumber you can trust?
Honest work, a fair price, and no hidden fees. Call your 24/7 Master Plumber for the DMV.