Randolph · Norfolk County
A leak under the sink, a backed-up drain, or a cold shower in Randolph? Call or send a request to reach an independent plumber who takes jobs in town.
Randolph, Massachusetts
Is water running where it shouldn't? Close the main shutoff where the water line comes through the foundation, then call. If you smell gas near a water heater or sewage is rising into the basement, get everyone outside first and call 911 or Eversource Gas once you're clear of the house.
South Shore Plumber Finder refers Randolph homeowners to local plumbers and doesn't send crews or do repairs itself. When you call or send a request, you're put in touch with an independent plumber who works in Randolph, and you decide whether to hire them. This page explains the local pieces that shape a plumbing job here: where your tap water comes from, where your wastewater goes, and how permits are handled at Town Hall.
Most Randolph homes are lived in by the people who own them; the Census Bureau puts the owner-occupied share at 71.3%. That means most repair decisions land on the homeowner, so knowing who runs which pipe in town saves time and money.
Local knowledge
Randolph's water and sewer arrangements are unusual for the South Shore, and they affect what a plumber checks.
Shared Reservoir Supply
Tap water comes from the Randolph-Holbrook Joint Water System, fed by Lower Great Pond, Upper Great Pond, Richardi Reservoir, and the Farm River. Because it's surface water, the town treats it before it reaches your service line, and a plumber may ask whether you've noticed changes in taste, color, or pressure.
New Treatment Plant
The Tri-Town Water Treatment Plant, built for Braintree, Randolph, and Holbrook to remove PFAS, started blending water on July 6, 2026, and the town says Randolph is now fully on the new plant. A change in treatment can loosen old scale, so a little sediment at aerators or the water heater drain is worth mentioning to a plumber.
Source: Town of Randolph
Corrosion Control
According to the 2025 water report, the plant adjusts pH with lime and adds phosphate to limit corrosion of lead and copper in household plumbing. Ask a plumber to keep that in mind before recommending water treatment equipment you may not need.
Service Line Inventory
Randolph's Water Department has finished a town-wide inventory of water service lines under the federal Lead and Copper Rule Revisions and is scheduling on-site inspections. If the town asks to look at your line where it enters the basement, that visit is separate from any plumber you hire.
MWRA Sewer Service
MWRA lists Randolph as a sewer-only customer community: its water is local, but its sewage flows into the regional MWRA system. The town's Water and Sewer Division keeps separate water and sewer lines, so call the sewer side about a problem in the street.
Source: MWRA
Services
These are the jobs Randolph homeowners call about most. Pick the closest match, or call and describe what you're seeing.
Hire smart
Plumbing and gas fitting in Massachusetts require a license from the Board of State Examiners of Plumbers and Gas Fitters, and most plumbing work needs a permit from the town's plumbing inspector.
Plumbing and gas fitting licenses in Massachusetts come from the Board of State Examiners of Plumbers and Gas Fitters. Ask for the license number and confirm it on the state's occupational license search before anyone opens a wall. Source
Randolph takes building, plumbing, gas, and electrical permit requests through PermitEyes. The plumber doing the work should file the plumbing or gas permit in their own name, not leave it to you. Source
The Plumbing Inspector works out of the Building Department on the second floor of Town Hall, 41 South Main Street. The town's posted 2026 schedule lists Monday, Wednesday, and Thursday hours, with inspection requests due before 9:00 a.m., so ask the plumber how that fits the job. Source
Ask for parts, labor, the permit, and any wall or floor patching to be listed separately. Two estimates that describe the same work are easy to compare; two vague ones aren't.
Costs
The price of a Randolph plumbing job depends on what failed, what the pipes are made of, and how much finished space stands between the plumber and the problem. A repair under an open basement ceiling is a different job from one behind a tiled bathroom wall, and work that crosses into the street can involve the town.
Before you agree to anything, get a written estimate and ask whether the permit, the inspection visit, and cleanup are included. For bigger work, such as a new water heater or a sewer line repair, a second estimate is worth a short wait, and you should ask how unexpected findings will be priced.
Neighborhoods and nearby
Plumbers who work in Randolph often take jobs in neighboring Holbrook, which shares the town's water system, and in Avon, Stoughton, Canton, Braintree, and Brockton as well.
Questions
Still not sure? Send a short request and a local pro can answer the specifics.
There isn't a single answer, because the job, the pipe material, access, and permit needs all change the price. Ask a Randolph plumber for a written estimate after they've seen the problem, and ask what happens if they find more once the work starts.
That depends on the independent plumber you're connected with and how busy they are, especially during storms. Close the main shutoff while you wait. Water creeping toward outlets or the panel is a reason to leave the basement and call 911.
The Building Department at Town Hall handles plumbing and gas permits, and requests go through the town's PermitEyes system. The Plumbing Inspector checks the work. Your plumber should hold a Massachusetts license and apply for the permit.
The town says Randolph moved fully onto the new Tri-Town plant after blending began on July 6, 2026; the plant was built to remove PFAS. If you see sediment, discoloration, or low flow at a few fixtures, a plumber can clean aerators and flush the water heater.
The Water Department has completed a town-wide service line inventory and is scheduling on-site inspections. Contact the department to ask what's on record for your address. Don't scrape or cut a pipe you think might be lead.
Randolph is a sewer customer of the MWRA, so wastewater leaves town through the regional system. For a problem in the street, call the town's Water and Sewer Division. For a backup inside the house, a plumber can clear and camera the line.
Get connected
Share a few details and an independent local plumber who serves your town can follow up about the job. There’s no charge to use this site, and you decide whether to hire anyone.
Prefer to talk? Calling is the fastest way to reach a local plumber.
Call Now