Basement flooding and sewer backup in Syracuse

Plumbers for backwater valves, sump pumps and drains.

17 pros in Syracuse

Basement flooding in Syracuse is tied to how water moves through the sewer system. Onondaga County says basement backups can come from sewer line blockages, heavy rainfall overwhelming the sewer system, or tree roots in sewer pipes. It also says sump pumps, roof drains and gutters connected to the sanitary sewer can cause capacity problems, and it suggests plugging or disconnecting basement floor drains and sewer connections that tie into the sanitary system. That shapes what you ask a contractor. Ask where a sump pump discharges, and whether any drain or downspout you already have feeds the sanitary sewer. Ask what the plan is for floor drains. Permits matter too: in the city, plumbing permits for 1-2 family homes must be obtained through Onondaga County, and trade permits such as electrical, which a new pump circuit could involve, are obtained separately from the main construction permit. Before you hire, ask who will pull each permit and get that in writing in the quote.

  1. Halco

    Open around the clock, every day, the company handles sump pumps, basement waterproofing and drain cleaning, and it also works on heating and cooling with Kohler, Carrier, Trane and Navien equipment.

    Also serves Rochester

    • Website checked

    Rated 4.9 out of 5 2,623 Google reviews · Nov 2026

Not yet verified. We checked that each one’s own website offers this work, but we haven’t contacted them yet. How a business gets listed

Know a good one we’re missing? Suggest one

What to know in Syracuse

  • Blizzard '93, on March 13-14, 1993, dropped 43 inches of snow on Syracuse in two days, the most in one event on record for the city.

    CNYCentral (WSTM) (source, opens in a new tab)

  • National Grid reported that over 121,000 Central New York customers lost service after heavy rains and high winds, including an EF-1 tornado with winds up to 105 mph in Clark Mills. Crews had restored nearly 115,000 of them (95%) by 3:30 p.m. on the day of the release, and fallen trees and debris created access issues.

    National Grid (source, opens in a new tab)

Before you hire

  1. Ask which permits the job needs and who will get them; your municipal building department can tell you before work starts.

    Source: ised-isde.canada.ca (source, opens in a new tab)

  2. Get written quotes from at least three contractors for the same work, and check references from recent clients.

    Source: ised-isde.canada.ca (source, opens in a new tab)

  3. Put it in a written contract: the work, price, deposit, start and finish dates, warranty, permits and clean-up. Paying cash to skip it leaves you no recourse.

    Source: ised-isde.canada.ca (source, opens in a new tab)

Questions about hiring in Syracuse

Where do I get a plumbing permit for basement flooding work in Syracuse?

For 1-2 family homes in Syracuse, plumbing permits must be obtained through Onondaga County. Before work starts, ask your contractor whether they will apply for it, and have the answer written into the quote or contract so responsibility is clear. City of Syracuse (source, opens in a new tab)

What can cause a basement to back up in the Syracuse area?

Onondaga County lists sewer line blockages, heavy rainfall overwhelming the sewer system, and tree roots in sewer pipes. A good contractor should identify which cause applies to your home before proposing a fix, rather than quoting one solution for every basement. Onondaga County (source, opens in a new tab)

Should my sump pump or gutters connect to the sanitary sewer?

The county says sump pumps, roof drains and gutters connected to the sanitary sewer can lead to capacity issues. Ask any contractor where your pump and downspouts discharge, and whether the setup needs to change. Check current local rules before deciding. Onondaga County (source, opens in a new tab)

What should a quote for basement flooding prevention include?

A quote should describe the work item by item, such as valve, pump, drain or waterproofing, and name the materials and equipment. It should also state who handles permits, what the warranty covers, the timeline, and how changes are handled. Compare quotes line by line.