DuPage WaterproofingReferral Service

Basement Waterproofing in Westmont, IL

Water in the basement after every storm? We connect DuPage homeowners with independent, insured local waterproofing contractors.

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How it works

  1. 1. Tell us what you needAnswer a few quick questions in our short form. It takes about a minute.
  2. 2. We match you with one local proWe pass your request to one independent basement waterproofing contractor who works in your area.
  3. 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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Water in a Westmont basement? Below is what public data says about Westmont's homes, the local rules that matter, and how to get matched with one licensed local pro for free.

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 Westmont homeowners need to know which before paying for a fix.

What Westmont offers homeowners

Westmont's sanitary sewers are run by two districts, not the Village: Downers Grove Sanitary District serves the area west of Cass Avenue and Flagg Creek Water Reclamation District serves the area east of Cass. Which one you're in decides who to call about the main and which assistance programs apply; the line on your property is yours to maintain.

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 Westmont

About 24,429 people lived in Westmont in the 2020 Census. The median home there was built around 1976, and the biggest share of its housing went up between 1970 and 1989 (32% before 1970, 43% from 1970–1989, 21% from 1990–2009, 3% since 2010). Roughly 41% of homes are detached single-family houses and 8% are townhouses or other attached single-family homes; about 55% of households own their home.

Many Westmont homes date from 1970–1989. Those basements often have a sump pit already; check pump age, discharge location and whether you have a battery backup before a storm season.

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.

Simple diagram: drain tile along the footing carrying water to a sump pump
Illustration for explanation only, not a photo of a real Westmont job.

Nearby areas

Downers Grove Lombard Woodridge Lisle

Also see: cost guide · FAQ

Request a free basement waterproofing quote in Westmont

Fill this out and an independent local contractor will reach out, usually within one business day (response times depend on the contractor).

DuPage Waterproofing Referral is a referral service, not a contractor.

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