
Backflow Prevention Installation
Backflow preventer installation across the DMV for irrigation, boilers, and home systems. Serving DC, Maryland, and Virginia from Suitland, MD.
Backflow is drinking water’s worst enemy: a pressure drop in the main can literally pull water backward, siphoning whatever is in your irrigation system, boiler, or hose line into the pipes your family drinks from.
A backflow preventer is the one-way door that makes that impossible. We install them across the DC metro, and we carry the ASSE certification (59027) this work is supposed to have.
Where homes need backflow protection
Any connection where non-potable water could meet your drinking supply is a cross-connection, and codes require protection at each one. The usual suspects in a home:
- Lawn irrigation and sprinkler systems
- Boilers and hydronic heating loops
- Hose bibs, via simple vacuum breakers
- Pools, hot tubs, and their fill lines
- Water features and standby systems with chemical exposure
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.
The right device for the hazard
Backflow devices range from a simple hose-bib vacuum breaker to a reduced-pressure-zone assembly, and the correct one depends on the hazard level of what it is protecting against. Installing the wrong grade of device is a code failure and a real risk.
ASSE certification is the training for exactly those calls, and we bring it to every installation.
- Hazard-matched device selection
- Installed to code, WSSC and county compliant
- ASSE-certified: 59027

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
What is backflow, in plain terms?
Water flowing the wrong way. A pressure drop, from a main break or heavy draw, can siphon water backward from your irrigation or boiler into the drinking supply, carrying fertilizer, bacteria, or chemicals with it. The preventer physically blocks that reversal.
Does my sprinkler system really need one?
Yes, and code requires it. Irrigation water sits in lines with soil contact and lawn chemicals, exactly what should never reach a tap. Most jurisdictions require the right preventer on every irrigation connection.
What does ASSE certification mean?
It is the industry credential for backflow work, covering device selection, installation, and testing. Ours is ASSE 59027. It is the difference between a device installed correctly and one that just looks installed.
Which device do I need?
Depends on the hazard: higher-risk connections need higher-grade assemblies, and location matters for drainage and freeze protection. We match the device to your system and your county’s requirements.
Do backflow preventers need maintenance?
Testable assemblies should be checked periodically, and some jurisdictions require it. Devices also wear and can freeze if poorly located. We install them to survive, and can check an existing one while we are there.
Need a plumber you can trust?
Honest work, a fair price, and no hidden fees. Call your 24/7 Master Plumber for the DMV.