DuPage Sewer Backup Rebates by Town
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Several DuPage towns will pay part of the cost of protecting your basement from sanitary sewer backups, usually through an overhead sewer conversion or a backflow (check or gate) valve. These jobs often cost thousands of dollars, so check your town's program before hiring anyone. Most programs require approval and permits before work starts.
Last checked October 30, 2026 against each town's or district's official website. Programs, caps and funding change, and approval isn't guaranteed. Confirm the current terms with your town before you start any work. DuPage Sewer Repair Referral is a referral service, not a government agency or contractor.
DuPage sewer-backup rebates at a glance
| Town / district | Rebate |
|---|---|
| Wheaton | 75% of eligible costs, up to $8,000 |
| Elmhurst | 50% cost share, up to $5,000 (overhead sewer); 50% up to $3,000 (check valve) |
| Downers Grove Sanitary District | 50% of the cost or $3,000, whichever is less |
| Lombard | 75% of eligible pre-approved costs, up to $5,000 depending on the system |
| Villa Park | 50% of the lowest qualified estimate, up to $5,000 (overhead sewer) or $3,500 (backflow valve / sewer repair) |
| Bloomingdale | 50% of costs, up to $5,000 |
| Lisle | 50/50 on the first $5,000, up to $2,500 |
| Woodridge | 50% of installation cost, up to a per-project maximum |
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Wheaton
Rebate: 75% of eligible costs, up to $8,000
What qualifies: Rerouting basement plumbing to an overhead sewer: the ejector pit and pump, the electrical and plumbing work, trenching and concrete floor repair, digging up and reconnecting the building sewer, repairing interior finishes, a battery backup for the new system, and grass seeding. Single-family homes on the City sewer only. The home must have had a backup from the City sewer overloading in heavy rain, or be in an area Public Works designates as susceptible.
How to apply: Call Public Works (630-260-2110) or the Sewer Division (630-260-2107) first to confirm eligibility. If eligible, hire a state-licensed plumber for drawings and a written proposal, then get a City building permit before work starts. The packet has the pre-qualification form and application.
Official source: City of Wheaton — Residential Sewer Backup Prevention Program · Program packet (PDF)
Elmhurst
Rebate: 50% cost share, up to $5,000 (overhead sewer); 50% up to $3,000 (check valve)
What qualifies: Overhead Sewer Program: converting a gravity sewer to an overhead sewer; some modified overhead designs may also qualify. Separate Check Valve Reimbursement Program for a check-valve system. For both, the perimeter drain tile and any other clear-water source must be disconnected from the sanitary sewer and sent to a sump pit and pump.
How to apply: Apply through the City with the program application, overhead sewer permit application, general information form and homeowner participation agreement in the guide. After the work passes inspection, pay the plumber and submit the paid, itemized invoice and proof of payment for reimbursement.
Official source: City of Elmhurst — Cost-sharing programs · Overhead Sewer Program guide (PDF)
Downers Grove Sanitary District
Rebate: 50% of the cost or $3,000, whichever is less
What qualifies: A District-approved overhead sewer or backflow prevention device, for buildings connected to the District's system and built before July 17, 1996. It covers the installation itself, not incidental costs like landscaping, painting, tile or carpet. Funding is limited to the District's yearly budget, and homes with a reported backup get first priority. The District serves most of Downers Grove and parts of Westmont, Oak Brook, Darien, Woodridge and Lisle.
How to apply: Review the program packet, then submit the District's online application with the property address and parcel number. Report any backup to the District, since a prior report counts as documentation.
Official source: Downers Grove Sanitary District — Overhead sewer & backflow program · Program packet (PDF)
Lombard
Rebate: 75% of eligible pre-approved costs, up to $5,000 depending on the system
What qualifies: For homeowners with chronic backups. Per the application's schedule: up to $1,000 for an interior or exterior check valve, up to $2,000 for an interior combination gate/check valve, and up to $5,000 for an overhead, modified-overhead or exterior pumping system. Eligible costs include excavation, the ejector pit and pump, a dedicated circuit, floor repair, seeding and permit fees. One grant per address per fiscal year, subject to available funds.
How to apply: Submit the application with two plumbing estimates to Public Works (1051 S. Hammerschmidt Ave., 630-620-5740) and get approval and Village permits before work starts. After the final inspection, pay the plumber and the Village reimburses its share.
Official source: Village of Lombard — Grants (Overhead Sewer) · Overhead Sewer Grant application (PDF)
Villa Park
Rebate: 50% of the lowest qualified estimate, up to $5,000 (overhead sewer) or $3,500 (backflow valve / sewer repair)
What qualifies: Converting basement plumbing to an overhead sewer (the Village's most recommended option), or installing a backflow prevention valve or replacing the sanitary service. Separately, 50% up to $1,500 for disconnecting downspouts, sump pumps and footing drains from the sanitary sewer. Lifetime cap of $5,000 per owner for the sewer projects.
How to apply: Submit the online Request for Eligibility Determination before work. Public Works: 630-834-8505.
Official source: Village of Villa Park — Home Flood Prevention Reimbursement Program
Bloomingdale
Rebate: 50% of costs, up to $5,000
What qualifies: An overhead sewer, gate valve or flap valve for homes with gravity sanitary services and a history of basement backups caused by low service lines. A separate program pays 50%, up to $500, for a new exterior cleanout.
How to apply: Call Public Works – Utilities (630-671-5830) before completing the application.
Official source: Village of Bloomingdale — Sewer Service Grant Program
Lisle
Rebate: 50/50 on the first $5,000, up to $2,500
What qualifies: An overhead sewer or other backup prevention device, for Village sewer customers who have had a sanitary backup. If your home connects to a DuPage County sewer, the County may also cost-share (630-407-6800).
How to apply: Before work, submit two estimates and the Village's application. Get a building permit and inspections, then submit proof of payment. Development Services: 630-271-4150.
Official source: Village of Lisle — Overhead Sewer Cost-Share Program
Woodridge
Rebate: 50% of installation cost, up to a per-project maximum
What qualifies: Five project types: an overhead sewer, an exterior check valve in a cleanout, an interior check valve, an interior gate valve, and removing a foundation drain from the sanitary line and adding a sump pump. Caps differ by project and are listed in the Village's Program Overview.
How to apply: Get a building permit from Community Development (630-719-4750) before work, use a licensed plumber, and submit paid receipts after approval. Public Works: 630-719-4753.
Official source: Village of Woodridge — Sanitary sewer & incentive programs
How to use a rebate program
- Call public works during or right after a backup so they can check the main and log it.
- Contact your town about the program and confirm you're eligible.
- Get the required plumbing estimates (often two) from licensed plumbers.
- Get approval and permits before work starts.
- After the final inspection, pay the plumber and submit the paid invoice for reimbursement.
Frequently asked questions
Do I have to get approval before the work starts?
In every program listed here, yes or effectively yes. Most require you to apply, get estimates reviewed and pull a permit before work begins. Work done first is often not reimbursed, so call your town before you sign a contract.
What's the difference between an overhead sewer and a backflow valve?
An overhead sewer re-plumbs basement fixtures to an ejector pit that pumps wastewater up and out above the level where the public sewer can back up. A check or gate valve is cheaper but needs maintenance, and you can't use basement plumbing while it's closed. Several programs pay more for an overhead sewer.
Do I need to have had a backup to qualify?
Usually. Wheaton, Lombard, Bloomingdale and Lisle tie eligibility to a backup history (Wheaton can also designate at-risk areas). The Downers Grove Sanitary District gives first priority to reported backups but also accepts preventive installs. Report every backup to public works; the report can serve as your documentation.
Why do programs require disconnecting drain tile or sump pumps?
Clear water from drain tile, sump pumps and downspouts overloads the sanitary sewer in storms, which causes backups. Elmhurst, Villa Park and others require or separately fund disconnecting it.
Will a plumber handle the paperwork?
Many local plumbers who do overhead sewers are familiar with village programs and can prepare drawings, estimates and permits. You're still the applicant, so keep copies of everything.
My town isn't listed. Is there a program?
Maybe. We only list programs we could confirm on an official town or district website. Call your public works department and ask about overhead sewer or backflow cost-share programs.
Need a plumber who's done this before?
Tell us about your backup and we'll connect you with one independent, Illinois-licensed local plumber for a free estimate you can use with your town's program.
Also see: sewer repair cost guide · your town's page · FAQ