Basement Waterproofing in Downers Grove, IL
Water in the basement after every storm? We connect DuPage homeowners with independent, insured local waterproofing contractors.
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- 1. Tell us what you needAnswer a few quick questions in our short form. It takes about a minute.
- 2. We match you with one local proWe pass your request to one independent basement waterproofing contractor who works in your area.
- 3. They contact youThe pro reaches out to set up a visit and a written quote. You decide; there's no obligation.
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Parts of Downers Grove sit near St. Joseph Creek and other drainageways, and the village publishes floodplain and stormwater information. If you're near a creek, check whether your home is in a mapped floodplain before hiring — a waterproofing system handles groundwater seepage but won't stop overland flooding.
Wet basement or sewer backup? Know which one you have
Groundwater seeping through walls or the floor is a waterproofing problem (drain tile, sump pump, crack repair). Water coming up through a floor drain during heavy rain is often a sewer backup, which calls for backflow protection or an overhead sewer. Many Downers Grove homeowners need to know which before paying for a fix.
What Downers Grove offers homeowners
Most of Downers Grove is served by the Downers Grove Sanitary District, which says you own and maintain the pipe from your house to the main (the "building service"), while the District maintains the main. The District's Building Sanitary Service Repair Assistance Program can pay to repair, line or replace eligible laterals if rain and groundwater sources are removed from the line; you apply with a recent rodding invoice, plumber's proposal or televising report.
Terms from the official page linked below as published when we checked in October 2026. Confirm current funding and rules before work starts.
Housing in Downers Grove
About 50,247 people lived in Downers Grove in the 2020 Census. The median home there was built around 1974, and the biggest share of its housing went up before 1970 (41% before 1970, 36% from 1970–1989, 16% from 1990–2009, 7% since 2010). Roughly 62% of homes are detached single-family houses and 8% are townhouses or other attached single-family homes; about 75% of households own their home.
Older Downers Grove homes (41% pre-1970) are more likely to have block or poured walls with old clay drain tile and floor drains tied into the sewer. Several DuPage programs require disconnecting drain tile from the sanitary sewer and sending it to a sump pump — a common part of waterproofing jobs here.
Ask any waterproofing contractor for a written diagnosis of where the water is coming from, what they'll fix, and whether a village permit is needed.
Nearby areas
Lombard Woodridge Westmont Lisle
Also see: cost guide · FAQ
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