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703-752-1251
703-752-1251
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Plumbing Services

Free estimates on select heating, air conditioning, plumbing, and electrical system installations and replacements

Plumbing Services

In Northern Virginia, Maryland, and Washington D.C.

A running toilet that won’t quit, a sink that fills more than it drains, no hot water on a cold morning, or a water bill that suddenly doesn’t make sense: these are the moments that send most DMV region homeowners looking for a plumber. John C. Flood has been solving these problems throughout Northern VA, MD, and DC for more than 120 years, and our licensed plumbers handle everything from small repairs to full system replacements.

This page is your starting point. Below, you’ll find every plumbing service we offer, organized so you can find exactly what you need and get straight to the details that matter for your home.

What Are The Signs It's Time to Call a Plumber?

Plumbing problems aren’t always obvious until they’ve already caused damage. If you notice any of the following, it’s worth scheduling a professional plumbing inspection to get a clear picture of what’s going on:

  • A toilet that runs constantly or takes too long to refill
  • A drain that’s slow, gurgling, or backing up
  • Low water pressure throughout the house
  • No hot water, or hot water that comes and goes
  • A water bill that’s suddenly higher than usual
  • Wet spots near the foundation or under a sink
  • Water that looks discolored or rusty
  • A sewage smell coming from a drain
  • A sump pump that’s noisy or isn’t turning on when it should
  • A water heater that’s leaking or making unusual sounds

You don’t need to diagnose the exact problem before you call. Our plumbers can take a look, walk you through what they find, and recommend the right next step.

Our Plumbing Services

From routine repairs to full installations, our plumbers handle the full range of plumbing needs across Northern Virginia, Maryland, and Washington, D.C. Explore the categories below to find the service that fits what’s going on at your house.

If your home relies on a boiler for heat or hot water, our plumbers can install a new system, replace an aging one, or repair the boiler you already have. We’ll walk you through what’s actually going on with your system before recommending a fix.

Explore our Boiler Installation & Replacement and Repair services.

Slow or clogged drains usually have a specific cause, and our plumbers use video camera inspection to find it before recommending cleaning or repair. This group of services covers everything from a single stubborn clog to a full drain line repair.

Learn more about our Drain Cleaning, Clog Removal, Repair, and Video Inspection services.

A jammed, leaking, or dead garbage disposal is more than an inconvenience. Our plumbers install new units and repair or replace the one you already have.

Explore our Garbage Disposal Installation & Replacement and Repair services.

Gas line work should always go through a licensed professional, and our plumbers handle installation, repair, and replacement for gas lines feeding ranges, grills, and other appliances.

Review our Gas Line Installation, Repair, and Replacement services.

For clogs that keep coming back, hydro jetting clears a drain or sewer line more thoroughly than a standard snake, including trenchless options that limit disruption to your yard.

See if Hydro Jetting Services are what your home needs.

From a single damaged section of pipe to a larger repiping project, our plumbers assess what your home actually needs and explain the options, including trenchless methods that reduce digging.

Learn more about Pipe Installation, Repair, and Replacement, including trenchless options.

A plumbing safety inspection gives you a clear, honest look at the condition of your system, whether you’re troubleshooting a specific issue or just want peace of mind.

Review what’s included in our Plumbing Safety Inspections.

Smart plumbing devices and monitoring technology use Wi-Fi, sensors, and mobile apps to track water usage, detect leaks instantly, and shut off your water main automatically to prevent costly damage.

Key Types of Smart Plumbing Tech

  • Smart Leak Detectors: Small sensors placed under sinks, near water heaters, or behind toilets that sound an alarm and ping your phone when they touch moisture. Popular options include the YoLink Water Leak Sensor & Hub and the Kidde Water Leak + Freeze Detector.
  • Automatic Shut-Off Valves: Whole-home systems like the Phyn Plus or StreamLabs Control attach to your main water line to measure water flow and turn off the water supply within seconds if a major leak or burst pipe is detected.
  • Smart Water Monitors: Non-invasive devices like the Flume 2 Smart Home Water Monitor strap onto your existing water meter to track daily usage patterns and spot hidden running toilets or slow drips.
  • Smart Water Heaters: Units that adjust heating based on your routine, track energy use, and send early warnings before a tank fails.

 

Main Benefits of Smart Plumbing

  • Early Prevention: Smart plumbing technology stops minor drips from turning into expensive structural floods.
  • Remote Control: This technology lets you monitor usage and turn off your home water supply from your phone while traveling.
  • Lower Bills: Real-time data helps you find waste and reduce overall utility use.

A working sump pump is one of the best protections your basement has against water damage. Our plumbers install new systems and replace or repair the pump you already have.

Explore our Sump Pump Installation & Replacement and Repair services.

Running toilets, stubborn clogs, and outdated models all fall under this service, including upgrades to more water-efficient toilets.

Visit our Toilet Installation and Repair page for more information.

Whether you need a repair, a full replacement, or help deciding what system makes sense for your household, our plumbers walk you through the options for your fuel type and hot water needs.

Learn more about our Water Heater Installation & Replacement and Repair services, including Tankless, Electric, Gas, and Hybrid Heat-Pump systems and Expansion Tanks.

Early water leak detection prevents large amounts of damage and expensive repairs from occurring in your home if a leak is neglected.

Review the Water Leak Detection page to learn more, or book online with the John C. Flood team today.

Your water main connects your home to the municipal water supply, and a break or leak here needs a fast, accurate response. Our plumbers repair and replace main lines, including trenchless options that avoid tearing up your yard.

Explore our Water Main Line Repair and Replacement services, including trenchless options.

Homes on private well systems, especially common in parts of Loudoun County, need their own kind of care. Our plumbers service well systems to help keep your water supply reliable.

Visit our Well Systems Services page to learn more.

Get $100 Off Your Plumbing Service

 Call now to hear about our plumbing specials, including this $100 off your plumbing service, and more. Minimum of $500.00 job to be applicable. Cannot be combined with any other offer or discount.
Don't Wait, Call 703-752-1251 to schedule your plumbing service and prevent costly repairs.
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Why Are Plumbing Problems Common in DMV Homes?

DC, Maryland, and Northern Virginia have a mix of home styles and ages, and that variety shapes the plumbing issues our plumbers see most often:

  • Century-old row homes and mid-century suburban homes throughout the District and inner suburbs, each built to different plumbing standards
  • Older cast iron and galvanized pipe still in use in parts of the District and in some of Northern Virginia’s older neighborhoods
  • Freeze-thaw cycles each winter that put stress on outdoor pipes and water mains
  • Clay-heavy soil in parts of Maryland that can add pressure to sewer lines over time

None of this means your plumbing is destined for trouble. It just means a home in this region benefits from a plumber who’s familiar with what tends to go wrong and why.

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Our Plumbing Services Process

Every plumbing visit follows the same basic approach, whether it’s a small repair or a larger installation:

  • A thorough in-home inspection and assessment
  • A conversation about what you’ve noticed and when it started
  • A clear explanation of your options, in plain language
  • Upfront, flat-rate pricing before any work begins
  • The repair or installation itself
  • Testing and cleanup before the technician leaves

You’ll know what’s wrong, what it costs, and what to expect before we ever pick up a tool.

Our Services Areas Across the DMV

John C. Flood proudly serves homeowners throughout Washington, D.C., Maryland, and Northern Virginia, including, but not limited to the following:

Northern Virginia

See our full Northern Virginia service area

Maryland

See our full Maryland service area

Washington, D.C.

Don’t see your region listed? View our complete list of service areas, or give us a call to confirm.

Providing Comfort to Families for over 120 Years
quote jcf
The plumber and electrician they sent were knowledgeable, professional, and equally as important, full of integrity. While they presented various options, they did not try to sell me something that I did not need. I would highly recommend them, the company has come a long way and I appreciate the service men they sent.
John J.
The technician helped me with my water heater. He researched the part that is needed, order it and I truly hope to see him again on the install soon. He was very knowledgeable and extremely helpful!!!
Darcy S.
I have used John C. Flood for plumbing issues 3 times now. Each time, they're very responsive and reasonably priced. Each time, my technician has been Harry Hudson. He has done excellent work for me. Highly recommend the company and the technician!
Samantha T.
I had an issue at my rental property over the weekend. John C Flood is a life saver! They sent someone out right away and he was knowledgeable, friendly and worked quickly for our guests. I will be using them again.
Tracy J.
I cannot speak highly enough of John C. Flood and specifically Dale Jr. He has repaired my system twice in a moment of crisis and has gone above and beyond to make sure we are happy with the outcome. He takes the time to explain the situation and lays out all the options and processes so clearly so I feel comfortable with what he is doing. The company is excellent at sending people in a timely matter.
Bruce B.
5000 +

Google Reviews

4.8/5
Rated 5 out of 5
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Why Choose John C. Flood for Plumbing Services in Your Home?

Homeowners across the DMV have relied on John C. Flood for generations, and here’s what that experience adds up to:

  • 120+ Years in the DMV. We’ve been repairing, installing, and maintaining home plumbing systems throughout DC, Maryland, and Northern Virginia for more than 120 years.
  • Licensed & Insured Plumbers. Every plumber we send to your home is fully licensed and insured, so the work is done right and you’re protected if anything goes wrong.
  • Honest, Upfront Pricing. You’ll get a clear, written quote before any work begins, with no surprise charges after the fact.
  • Call Center Available 24/7. Our call center is available 24/7 to take your call, and we offer emergency plumbing during our normal business hours.
  • Full-Service, Multi-Trade Company. Beyond plumbing, we handle HVAC and electrical work too, so the same trusted team can take care of more of your home.
  • Genuinely Rooted in the DMV Community. We’ve spent generations fixing homes in DMV neighborhoods and giving back to them through our community involvement.
  • A Strong Track Record. Thousands of DMV homeowners have trusted us with their plumbing, and our reviews reflect it. See why we have 4.8 stars on Google with over 5,000 reviews.

Whatever you need, our goal is simple: take care of the problem the right way and treat your home like it’s our own.

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FAQs About Plumbing Services in Northern Virginia, Maryland, and Washington, D.C.

Our call center is available 24/7 to take your call, no matter when a plumbing issue comes up. Emergency plumbing itself is handled during our normal business hours, and any urgent concerns reported overnight are noted and scheduled for the earliest available appointment the next day when available.

Yes, we offer free estimates for water and sewer main replacements, and water heaters. Before any work begins, one of our plumbers will assess the situation in person and walk you through a written quote, so you know exactly what to expect.

It depends on the age, condition, and history of the system in question. Our plumbers evaluate all of that on-site and walk you through the realistic options, rather than assuming a replacement is always the answer.

Yes, we offer financing options for bigger jobs like water main replacements or full repiping projects, as well as coupons and special discounts. Ask your plumber about what’s available when you schedule your appointment.

Yes. Every plumber we send to your home is fully licensed and insured, which is one of the reasons DMV homeowners have trusted us for more than 120 years.