Somerville's triple-deckers and century-old two-families give the city its character — and its plumbing challenges, from lead service lines to frozen pipes in unheated basements. Plumbing Pros works on Somerville homes every day, and we know exactly what hides behind these walls. Call (877) 401-2673 to talk through your plumbing problem with a local specialist.

Plumbing for Somerville's triple-deckers and historic homes

Somerville packs more housing history into four square miles than most cities manage in forty. The triple-deckers of Winter Hill and the converted two-families around Union Square date from the same era. So do the brick apartment blocks near Davis Square, largely built between the late 1800s and the 1930s. Much of the plumbing inside them dates from the same era. The city's water distribution system itself was installed in the late 1800s to early 1900s. The mains have been modernized over the decades. But the service lines running from those mains into individual homes are often original. Many were installed before modern pipe materials and standards existed.

That lead issue is Somerville's most distinctive plumbing story. The water arriving through the mains is treated and tested. But once it travels through a lead service line into an old house, it can pick up lead during the hours it sits unused. That includes overnight hours and stretches while a family is away. The city has mailed educational materials to every household about it, and the practical advice is consistent: run the tap before drinking, and consider replacing the line. The portion from the curb to the house belongs to the homeowner, which puts the decision — and the fix — squarely in the property owner's hands. A full service-line replacement is the only permanent answer, and it's one of the most valuable upgrades an older Somerville home can receive.

Beyond the lead question, Somerville's density creates plumbing problems of a different kind. Three kitchens and three bathrooms stacked over a single aging drain system means one failing cast-iron stack or one root-choked sewer lateral affects multiple households at once. The lots are small and the street trees are mature, so sewer laterals run short distances through root-heavy soil. Galvanized supply lines that have been corroding since the Truman administration throttle water pressure to the upper floors. Nearly every winter, the city's Water and Sewer Department issues freeze advisories. Pipes routed through unheated basements and exterior wall cavities in these old wood-frame buildings are exactly the ones that split during a cold snap.

The neighborhoods each add their own texture. Union Square and East Somerville hold some of the oldest housing stock, where original plumbing is the rule rather than the exception. Davis Square and Teele Square mix older homes with renovated properties where new bathrooms were added onto old supply lines that were never sized for the extra demand. Winter Hill's hillside homes deal with basement water issues when storms saturate the ground. Wherever the house sits, the pattern repeats: old materials, heavy use, tight spaces, and winters that test every weak joint in the system.

Water heaters deserve special mention in Somerville, because the city's housing so often forces them into cramped basement corners where they quietly age past their prime. Sediment builds up, efficiency drops, and eventually the tank rusts through — usually discovered as a puddle spreading across the basement floor. Sizing a replacement for a Somerville home means accounting for the extra bathrooms and fixtures that renovations added over the years, not just matching the old tank's label. Done right, a new heater delivers steadier hot water and uses less energy. It sits in a proper drain pan so the next failure is an inconvenience instead of a disaster.

Who we are

Plumbers who know Somerville's housing by heart

Plumbing Pros is a plumbing company built for cities like Somerville. These are dense, historic places full of houses that have been reconfigured, renovated, and added onto for a hundred years. Our technicians spend their days in triple-decker basements, tracing galvanized runs through century-old framing and replacing the lead service lines the city has been warning residents about. We train specifically for this housing. That means knowing how to repipe around tenants and camera-inspect a lateral through a tiny cleanout. It also means fitting a modern water heater into a basement corner designed for a coal bin. We're not a dispatch service sending whoever's available. We're plumbers who know Somerville's housing stock the way a mechanic knows an old engine — by having worked on hundreds of them. Homeowners, landlords, and condo associations call us because we diagnose before we sell, explain before we cut, and stand behind the work after we leave.

• Lead service line replacement: one of our signature services, done with minimal excavation and full restoration.
• Triple-decker fluency: we navigate shared stacks, single shut-offs, and tenant coordination as routine, not exceptional.
• Camera-verified sewer work: you see the footage before we recommend a single dollar of repair.
• Respect for old houses: we open only what we must, match materials properly, and preserve what still has life in it.
• Clear communication: plain-language diagnoses, written options, and no jargon designed to confuse.
• Winter specialization: freeze prevention, burst repair, and cold-weather protection are core to how we serve this city.

Why choose us in Somerville

Why Somerville calls Plumbing Pros

• Housing-stock expertise: Somerville's triple-deckers and pre-war two-families are our everyday work, not an occasional challenge.
• Lead line specialists: we've replaced lead service lines across the city and know the process from curb to meter.
• Evidence before estimates: sewer cameras, pressure tests, and visual proof come before any recommendation.
• Tenant-aware service: we schedule around the people living in the building and keep water shut-offs as brief as possible.
• Tight-space problem solvers: narrow basements and cramped utility rooms are normal here, and we work cleanly in all of them.
• Straightforward pricing conversations: we explain what the work involves and what your options are, then let you decide.
• Follow-through: we test everything under real conditions and walk you through the finished work before we leave.

Plumbing problems we see across Somerville

Lead water service lines in older homes

Somerville's own water department has identified hundreds of homes where the service line running from the street main to the house is still lead. That is roughly two percent of homes in the city, mostly in the oldest housing. Lead enters drinking water when water sits in those pipes for hours. That's why the city advises residents in affected homes to run the tap before using water. Replacing a lead service line is the permanent fix: we coordinate the excavation and install a new copper or approved line from the curb connection into the home. You end up with piping that adds nothing to the water but flow.

Corroded galvanized supply lines and weak pressure

Somerville's housing is dominated by triple-deckers and converted two- and three-family homes. Many still have galvanized steel supply pipes that have been narrowing with corrosion for half a century or more. The symptom is unmistakable: the shower goes weak when someone runs the kitchen tap, and upstairs fixtures barely trickle when the washing machine fills. We replace the worst sections first, or repipe the whole riser when the whole system is failing. Either way, we restore even pressure to every floor without opening more wall than necessary.

Frozen pipes and the delayed leaks they cause

Pipes run through Somerville's unheated basements and crawlspaces. The wall cavities of old wood-frame houses freeze hard during cold snaps too. The cruel part is that a frozen pipe often doesn't leak until it thaws — the split opens days later and soaks everything around it. We repair burst sections, replace the most exposed runs, and help you find every shut-off valve in the house before winter so a freeze never becomes a flood.

Tree roots choking old sewer laterals

Somerville's dense lots and mature street trees make root intrusion one of the most common sewer problems we diagnose. Fine roots find the joints in old clay or concrete laterals, thicken into a mat, and start catching everything that goes down the drain. You'll notice it when multiple fixtures misbehave at once — the tub gurgles when the toilet flushes, or the basement laundry sink backs up during the wash cycle. Our camera inspection shows exactly where the roots enter and whether the pipe is still sound enough to save.

Sump pump failures and wet basements

In this city, basements sit below the water table. Storms can dump inches of rain in an hour, and a failed sump pump turns a basement into a wading pool. The most common failures we see are pumps that seized from sitting idle between storms and float switches tangled by debris. Discharge lines also freeze or clog at the outlet. We install and service sump systems sized for the space, with check valves and battery backup options so the pump keeps working even when the power doesn't.

Aging water heaters in tight basement spaces

With most of Somerville's housing built long before modern water heaters existed, many homes still run tanks wedged into tight basement corners, long past their intended service life. Rust-colored hot water, a popping or rumbling sound as sediment boils at the bottom of the tank, and dampness around the base all signal a heater approaching failure. We size replacements to the household, accounting for extra bathrooms added over the years. We install with proper venting, expansion control, and drain pans so a future leak is contained, not catastrophic.

What to expect when we visit

1. Tell us the symptoms: Reach us at (877) 401-2673 and tell us what's going on — which fixtures, when it started, what you've noticed. We listen first, because the details you give us (a gurgle here, a stain there) often point straight at the cause. We'll arrange a visit at a time that works for your household, and if water is leaking now, we'll walk you through the shut-off over the phone.
2. Inspect and diagnose together: At your home, we start by looking at the whole picture: the age of the house, the pipe materials we can see, and how the symptoms connect. For drain and sewer issues we run a camera down the line so you're looking at the same footage we are. You'll see roots, breaks, bellies, or buildup, all visible in real time. For supply-side problems we test pressure at multiple fixtures and trace the run back to the restriction. You get a diagnosis grounded in evidence, with options explained in everyday language.
3. Complete the repair cleanly: With your approval, we carry out the repair using materials matched to the job — copper or modern piping for supply work, proper fittings and supports, quality fixtures. We protect your floors and furniture, keep the work area contained, and restore water service as quickly as the work safely allows. In multi-family homes we coordinate with tenants so shut-offs are brief and everyone knows what's happening.
4. Test, explain, and hand it over: Every job ends with testing under real conditions: drains run at full flow, water heaters brought up to temperature, supply lines checked at every fixture. Then we walk you through what was done, point out the new shut-offs and cleanouts. We share maintenance tips specific to your home, like winterizing the basement pipes or keeping the sump pit clear. You'll know your system better when we leave than when we arrived.

Plumbing service across Somerville

We provide plumbing service throughout Somerville, Massachusetts, in ZIP codes 02143, 02144, and 02145. That includes Union Square and East Somerville's historic streets, Davis Square and Teele Square, Winter Hill, Ball Square, and Prospect Hill. Whether it's a triple-decker near the square or a single-family home on the hill, the housing tells the same story. Original-era plumbing works hard in a dense, century-old city. Somerville's compact lots mean our work often happens in tight quarters — narrow basements, shared driveways, and utility spaces that were designed around coal furnaces, not modern plumbing. We're used to it. Service-line replacements are planned to minimize digging, sewer camera inspections go in through existing cleanouts wherever possible, and multi-family repairs are scheduled around tenants' lives. If you're just outside our listed ZIP codes, or your address sits on a boundary line, don't guess — ask. Don't see your ZIP code? Call (877) 401-2673 and we'll confirm coverage.

Zip Codes We Serve in Somerville

02143, 02144, 02145

Testimonials

We bought a 1920s two-family and the inspector flagged the old pipes, but we didn't realize how bad the pressure was until we moved in. They repiped the supply lines and replaced the lead service line from the curb. The difference is night and day — every shower in the house runs strong now, and knowing the lead line is gone is worth more than the money. They were tidy, communicative, and the work passed inspection without a hitch.

Our basement kept taking on water every time it rained hard, and two different people told me two different things. These folks actually tested the sump pump, found the float switch was shot and the discharge line was half-blocked, and fixed both. They also showed me how to test the pump myself. Basement's been dry through three big storms since.

The kitchen drain backed up into the basement sink twice in one month. They ran a camera and we watched the roots together on the monitor — couldn't argue with what was right there on the screen. They cleared the line and repaired the damaged section instead of pushing a full replacement I didn't need. Honest work at an honest price, and they left the basement cleaner than they found it.

Frequently Asked Questions

What plumbing services do you offer in Somerville?

We handle the full range of residential and light commercial plumbing. That includes drain clearing and camera inspection, sewer line repair and replacement, water heater installation and service, and repiping. We also install fixtures and sump pumps, detect and repair leaks, and service toilets and faucets. If it carries water into or out of a Somerville building, it's in our wheelhouse.

How do I know if my home has a lead water service line?

Possibly. The city has identified hundreds of homes with lead service pipes, mostly in older housing. The line from the street to your house is the homeowner's responsibility. You can check the city's records or have the pipe visually inspected where it enters the basement. Lead pipe is dull gray, soft enough to scratch with a coin, and often has a bulb-shaped connection at the meter. If you find lead, replacing the line is the definitive fix, and we handle the full replacement.

When should I have my sewer line inspected with a camera?

When fixtures drain slowly, gurgle, or back up — especially more than one at a time — a camera inspection is the right next step. The camera travels the length of the line and shows roots, breaks, bellies, and blockages in real time. That footage tells us whether the line needs a simple clearing or a section replacement, and it keeps the repair targeted instead of exploratory.

Why is my water pressure so low on the upper floors?

The two most common culprits are corroded galvanized supply pipes that have narrowed over decades, and partially closed or failing shut-off valves. In Somerville's triple-deckers, the long vertical runs to upper floors lose pressure through old piping first. A repipe of the worst sections — or the whole supply system in severe cases — brings pressure back to every floor.

How do I keep my pipes from freezing this winter?

Locate your main shut-off valve — usually where the water line enters the basement — and confirm it turns freely before winter. Insulate pipes in unheated areas, seal drafts near pipes on exterior walls, and let faucets drip during extreme cold snaps; the city's own guidance recommends a pencil-width stream. Disconnect outdoor hoses in the fall. These habits prevent the majority of freeze damage we repair each year.

How can I tell if my sump pump will work when I need it?

Test it, don't guess. If the pump sits in a dry pit all summer, pour a bucket of water into the pit and confirm the float rises and the pump kicks on. Clear debris from the pit, make sure the discharge line is unobstructed outside. Consider a battery backup so storms that knock out power don't knock out your protection. If the pump is more than about seven years old or struggles during the test, have it serviced before the next heavy rain.

Which Somerville neighborhoods do you serve?

We serve homes and businesses across Somerville in ZIP codes 02143, 02144, and 02145. That includes Union Square, Davis Square, Winter Hill, Teele Square, Ball Square, East Somerville, and Prospect Hill. If your ZIP isn't one of the ones listed, reach us at (877) 401-2673 and we'll let you know whether we can help.

What should I do before the plumber arrives?

Note what's happening and when — which fixtures are affected, whether it's worse at certain times of day, and anything you've already tried. Clear a path to the problem area and to the basement or utility space. If water is actively leaking and you can reach the shut-off valve safely, turn it off to limit damage. We'll handle the diagnosis from there.

Local Weather Risk

Middlesex County has recorded the following severe weather events since 2015, per NOAA's National Centers for Environmental Information:

• Thunderstorm Wind: 320 recorded events (2015–2025)
• Flood: 107 recorded events (2015–2024)
• Hail: 49 recorded events (2015–2025)
• Flash Flood: 32 recorded events (2016–2025)
• Tornado: 4 recorded events (2016–2025)

Source: NOAA NCEI Storm Events Database.

Our Services

• Backflow Prevention Testing & Installation Near Me — Call for pricing
• Bathroom Plumbing Remodel Near Me — Call for pricing
• Bathtub Repair & Installation Near Me — Call for pricing
• Burst Pipe Repair Near Me — Call for pricing
• Commercial Plumbing Services Near Me — Call for pricing

Other Service Areas in Massachusetts

• Cambridge
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