298 reviews
"Called at 9 PM with a burst supply line — they were at the house in Alexandria within 45 minutes, replaced the section in copper, and walked me through what failed. Honest pricing, no upsell."
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Old Town Plumbing Co./ Alexandria, VA · Local Plumbing Directory
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Licensed, verified plumbing contractors serving Alexandria and surrounding Virginia neighborhoods. Built for homeowners, property managers, and operators who need a trustworthy local pro fast.
Local Overview
Plumbing in Alexandria
Alexandria's plumbing reflects the city's age and density: Old Town's 18th and 19th century buildings sit on systems that have been retrofitted four or five times, Del Ray and Rosemont have early 20th century single-family homes with original cast iron stacks, and the West End's mid-century apartment buildings and newer Carlyle developments anchor the modern end of the market. Alexandria is its own jurisdiction with its own permitting, separate from Arlington and Fairfax Counties — plumbers need to be specifically familiar with Alexandria's process.
Climate & Water Notes
What to know locally
Climate matches DC's pattern with marginal differences. Alexandria's older basements and crawlspaces in Old Town and Del Ray are prone to French drain and sump pump issues during heavy summer storms. Water service is Fairfax Water (3–6 grains, soft). One Alexandria-specific concern: many Old Town foundations sit below the Potomac high-water table, and tidal flooding has become more frequent — backwater valves on sewer laterals are increasingly required during major renovations.
Featured Plumbers
Top-rated in Alexandria
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Old Town Plumbing Co.
Historic · Restoration
Location
Alexandria, VA
Availability
24 HR EMERGENCY
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Del Ray Plumbing
Residential · Bungalow
Location
Alexandria, VA
Rating
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Potomac Yard Plumbing
New Construction · Townhome
Location
Alexandria, VA
Rating
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King Street Plumbers
Restaurant · Retail
Location
Alexandria, VA
Availability
24 HR EMERGENCY
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Alexandria Emergency Plumbing
Emergency · Burst Pipe
Location
Alexandria, VA
Availability
24 HR EMERGENCY
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West End Plumbers
Condo · High-Rise
Location
Alexandria, VA
Rating
Service Area Map
Alexandria coverage area
Map data © OpenStreetMap contributors
Recent Reviews
What Alexandria customers say
178 reviews
"Replaced our 20-year-old water heater with a tankless. Pulled the permit, handled the gas line upsize, and the install was spotless. Best contractor we've worked with in Alexandria."
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Del Ray Plumbing89 reviews
"Hydro-jetted the main line after years of slow drains. They cameraed before and after, showed us the root intrusion, and didn't push a $15k liner like the previous company. Real professionals."
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Potomac Yard Plumbing145 reviews
"Diagnosed a slab leak in our Alexandria home that two other plumbers misdiagnosed. Saved us from tearing up the entire kitchen floor. Worth every penny."
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King Street Plumbers134 reviews
"Did our entire bathroom rough-in for a remodel. On time, on budget, passed inspection first try. Clean work behind the wall, which is where it matters."
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Alexandria Emergency PlumbingNearby Neighborhoods
Service across Alexandria
Old TownDel RayRosemontParker-GrayCarlyleEisenhower EastBeverley HillsSeminary HillCameron StationPotomac YardBraddock HeightsTaylor Run
Frequently Asked
Alexandria plumbing FAQs
Does Alexandria require backwater valves on sewer laterals?+
Not universally, but the city strongly recommends them for properties below the 100-year flood elevation, and most renovation permits for affected zones now require them. A backwater valve install runs $850–$1,800 depending on access.
Can I run new plumbing in an Old Town historic property?+
Yes, but exterior work and visible fixtures are reviewed by the Old & Historic Alexandria District Board of Architectural Review (BAR). Interior plumbing is regulated by the city's permitting office and Virginia code. Plan for a longer permitting cycle than newer parts of the city.
How does Alexandria handle sewer backup claims?+
If the backup originates in the city main, AlexRenew (the wastewater authority) accepts liability claims. If it's in your lateral, it's a homeowner responsibility. A camera inspection from a city cleanout determines which side it is.
Why is my Del Ray basement always damp?+
Most Del Ray homes have shallow foundations on clay soil. The fix is rarely 'more sealing' — it's almost always exterior drainage correction plus a properly sized sump pump with battery backup.