Weymouth · Sump Pumps
Most of Weymouth's 2010 flood damage hit homes outside mapped flood zones. Get connected with an independent local plumber who serves Weymouth for a new pump, a replacement, or a backup.
Weymouth, Massachusetts
The claims from spring 2010 explain a lot about Weymouth basements. Three rainstorms between March 13 and 31 that year produced just 8 flood insurance claims in town but 615 disaster assistance claims, and the town's 2021 hazard plan says 99% of the damage was outside FEMA's Special Flood Hazard Areas.
The gap between those two numbers matters. Flood insurance tends to be carried by owners inside mapped zones, while the water landed mostly outside them. Saturated ground and rising groundwater don't follow map lines, which is why a sump pump makes sense in plenty of Weymouth basements that will never sit in a flood zone.
The shoreline adds a second risk along the Fore River and in neighborhoods like Idlewell. To talk through a new pump, a replacement, or a backup, call or send a request to be connected with an independent local plumber who serves Weymouth.
A basement that handles a single storm but leaks after several days of rain is reacting to the water table, which is a sump pump's job.
Mineral deposits on concrete block show that water has been moving through the wall and drying on the surface.
Gurgling or backing up during storms points to an overloaded sewer, and anything pumped into it makes the problem worse.
Without one, water in the discharge pipe falls back into the pit after every cycle, and the pump works harder than it should.
Local knowledge
The town's own plans explain both where water collects and why it shouldn't end up in the sewer.
Repeat Flood Losses
The 2021 Hazard Mitigation Plan counts 37 repetitive-loss properties in Weymouth with 115 flood losses from 1978 through 2020. Grants paid to raise 5 homes on Fort Point Road and for drainage work on Wessagussett Road; for everyone else, protection starts in the basement.
Source: Town of Weymouth
Tight Sewer Capacity
The town says lines without enough capacity in some areas cause backups and overflows. A sump pump tied into a basement drain adds groundwater to those same pipes during storms, so ask the plumber to send the discharge outside instead.
Source: Town of Weymouth
Fore River Map Change
After a town-sponsored study, FEMA revised the map panel covering the Fore River and Idlewell, effective September 29, 2016, lowering base flood elevations and taking some properties out of the 100-year floodplain. A change on paper doesn't dry out the ground under a house, so keep the pump and backup in working order.
Source: Town of Weymouth
Pre-1960 Housing
Weymouth's 2026 Housing Production Plan says almost two thirds of the town's housing was built before 1960, with 16.3% of units from the 1950s alone. Basements of that age may never have been built with a sump pit.
Source: Town of Weymouth
Right now
Your safety comes before the pump, the boxes, or the carpet.
If water is touching an outlet, the dehumidifier, the washer, or a power strip, don't walk in. Call 911 or National Grid from outside the basement and leave the electrical panel alone.
If water is coming up through a floor drain, run fewer fixtures until the cause is known. Sewage-tainted water is a health hazard, so keep children and pets away.
Make sure the discharge outlet isn't clogged with leaves, ice, or mulch so the pump isn't pushing against a blockage.
Note when the water appeared and where it came in, and take photos for the plumber and your insurer.
What to expect
A plumber will usually ask whether water seeps in at the walls, rises through the floor, or comes up through a drain, because each points to a different fix. If the trouble is a sewer backup, a sump pump isn't the answer, and a backwater valve or sewer line work may be.
Plumbing permits go through the Department of Municipal Licenses and Inspections on Middle Street, and inspections are booked with the inspector during early-morning office hours. For a new pit, expect slab cutting, a lined basin, piping through the wall to the outside, and often a new outlet installed by an electrician.
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.
Search the plumber's license number on the state's license lookup and make sure the name matches the business you're talking to.
A plumber who checks the source before selling a pump is more useful than one who quotes equipment sight unseen.
Weymouth inspections are set up directly with the inspector, so ask the plumber to arrange it and tell you when to be home.
Ask each plumber what backup they'd suggest for your basement and why, and get the answer in writing.
Costs
Concrete block walls and older slabs can make pit work slower, and a finished basement may need flooring or wall panels removed to reach the right spot.
If a past owner tied the pump into the sewer, rerouting adds piping and labor. Ask for a written estimate that separates the pump, the backup, any rerouting, the electrical work, and the permits, so you can see where the money goes.
More help in Weymouth
Every page below is written for Weymouth homes. Or start from the Weymouth plumbing guide.
Learning Center
A short list of the right questions tells you more about a plumber than any ad. Use these on the phone, during the site visit, and before you sign off on an estimate.
Read the guide
Massachusetts has some of the clearest plumbing rules in the country. Here is how to use them to pick a plumber with confidence, whether the job is a dripping shutoff or a full repipe.
Read the guideQuestions
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It's worth considering. In the March 2010 storms, nearly all of Weymouth's disaster assistance claims came from outside mapped flood areas. If your basement has ever been damp after heavy rain, ask a plumber to look at where a pit would go.
Probably not. A backup through a floor drain usually points to the sewer side, and the town says some lines lack capacity. Ask a plumber about a backwater valve or a camera inspection of your sewer line.
A pump and insurance do different jobs: one moves groundwater, the other pays for damage. Talk with your insurance agent about flood coverage, since standard homeowner policies often exclude it.
The town lists early-morning office hours for its Plumbing and Gas Inspector, and inspections are arranged by calling during that window. Your plumber normally handles this as part of the permit.
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