“Max was very knowledgeable, and professional when it came to fixing my outdoor vacuum breaker! He was also on time and finished with the replacement very quickly! I'm very happy with their service.”
Jenifer Leake
in the last week
Water stain on the ceiling? Spike in your water bill? We track down hidden leaks fast — then fix them for good, whether that means a simple pipe repair or a full repipe of your home's aging plumbing.
Leak repair in Arlington and Alexandria often means working with pipe materials that have not been sold in half a century. We regularly encounter lead supply lines connecting pre-war homes to the water main, galvanized risers inside plaster walls, and brass fittings that have dezincified to the point of crumbling. In Old Town Alexandria's flood-prone blocks near the waterfront, we also see chronic moisture intrusion that accelerates corrosion on any exposed piping in basements and crawl spaces. Every leak call in these neighborhoods is also an opportunity to assess the broader system and plan a path toward modern, code-compliant piping.
Arlington and Alexandria contain Northern Virginia's highest concentration of homes with original pre-war and mid-century plumbing, including materials like lead, galvanized steel, and Orangeburg that are no longer permitted by code. Leak repair here is rarely a patch-and-go situation; it is typically the starting point for a phased modernization of the home's entire water supply system.
Lead service lines connecting some pre-1950 Arlington and Alexandria homes to the water main pose both a leak risk and a health concern, and replacement requires careful coordination with the local water utility.
Dezincification of original brass valves and fittings in homes built before 1960 causes them to become porous and weep water, often mistaken for condensation until the damage becomes visible.
Below-grade piping in Old Town Alexandria basements is exposed to recurring moisture from the high water table near the Potomac, accelerating corrosion on steel and iron pipes that would last decades in a dry environment.
Every service below is available to Arlington & Alexandria homeowners with a written estimate before work begins and our workmanship guarantee.
Locate the source of visible or hidden water leaks using inspection tools and pressure testing.
Find concealed plumbing leaks behind walls, ceilings, floors, or underground.
Detect leaks in pipes located beneath concrete foundations or slabs.
Repair water lines leaking beneath the foundation slab.
Repair leaking plumbing pipes by sealing, patching, or replacing damaged sections.
Repair or replace pipes that have burst due to pressure, freezing, or corrosion.
Repair pipes damaged after freezing conditions or restore flow to frozen pipes.
Repair plumbing pipes that have developed cracks causing leaks.
Repair pipes weakened by corrosion or rust.
Urgent repair of pipes actively leaking or causing water damage.
Replace all plumbing supply pipes in a home with modern materials.
Replace plumbing pipes in a specific area of the home.
Replace outdated plumbing with modern PEX piping system.
Replace existing plumbing with copper piping system.
Remove corroded galvanized pipes and replace with modern piping.
Repair leaks in the main water supply line.
Repair damage or leaks in the main water supply pipe entering the home.
Replace the primary water supply pipe from the meter to the building.
Repair underground water service pipe.
Replace entire underground service line.
Repair buried water lines outside the home.
Diagnose causes of abnormal water pressure.
Identify and repair issues causing weak water pressure.
Repair plumbing problems caused by excessive water pressure.
Repair malfunctioning pressure regulator valve.
Replace faulty pressure regulator valve.
Install pressure reducing valve to protect plumbing system.
Based on 131 reviews
“Max was very knowledgeable, and professional when it came to fixing my outdoor vacuum breaker! He was also on time and finished with the replacement very quickly! I'm very happy with their service.”
Jenifer Leake
in the last week
“Great team effort and a quick response. Max replaced our water heater and was quick and efficient while also having to move our washing machine out of the way and then putting it back. Highly recommend!”
brenda brophy
in the last week
“I can see why this business has such great Google ratings. I called for a plumbing issue and they came out right away. James, who answered the phone, was incredibly nice and polite, setting a great tone from the start. I met with one of the owners, who was honest, down-to-earth, and clearly very knowledgeable. It’s a family-owned business that truly cares about their customers. I will definitely be contacting them again for any future plumbing needs!”
Eric K
in the last week
“Max took great care to properly diagnose the problem and went to two different suppliers to get the right parts. He was punctual, courteous and thorough. I was very pleased with his work.”
Phillip Ives
in the last week
Small plumbing problems don't stay small. A dripping faucet wastes 3,000 gallons a year. A slow drain becomes a sewage backup. A pinhole leak behind your wall becomes mold and drywall damage.
Pioneer Plumbers has been protecting Arlington & Alexandria homes for years. Call us or book online, we'll send a technician to diagnose the issue, explain your options, and provide an honest quote before any work begins. No pressure, no obligation, and every job is backed by our workmanship guarantee.