Mount Prospect, IL
Lead water pipe replacement in Mount Prospect
Official page: "The Village will reimburse 100% of the cost to replace the service line from the water main to the water shutoff valve, known as the B-box. And 2/3 of the cost to replace the shutoff valve to the water meter, but not more than $10,000 of the actual expenses incurred. Low-income homeowners may be eligible for a 0% interest deferred loan." Program covers replacing lead or galvanized steel service with copper from the public water main to the water meter inside the property; homeowners, multi-family, and commercial buildings are eligible. Eligibility is limited to Village of Mount Prospect water customers — Illinois American Water Company customers and residents with privately owned wells are not eligible. Homeowner pays 1/3 of the B-box-to-water-meter (private) portion, any amount above the $10,000 reimbursement cap, plus Village permit fees and bonds ("All Applicable permit fees and bonds will apply"). Only work performed with a valid Village of Mount Prospect permit is considered, and the program is not retroactive — work performed in the past is not eligible; the Village advises contacting Public Works (847-870-5640) before commencing any work.
Mount Prospect's program at a glance
Who supplies the water
The Village of Mount Prospect operates its own community water system for most of the village; official pages state that some residents are in the Illinois American Water service area and must contact Illinois American (amwater.com/ilaw) about lead service lines — Illinois American customers and private-well owners are not eligible for the Village's program.
Program
Lead and Galvanized Steel Water Service Replacement Cost Sharing Program
What the homeowner pays
Homeowner pays 1/3 of the B-box-to-water-meter (private) portion, any amount above the $10,000 reimbursement cap, plus Village permit fees and bonds ("All applicable permit fees and bonds will apply"). Work must be done under a valid Village of Mount Prospect permit; the program is not retroactive — past work is not eligible.
How to check your line
The Village's Lead Service Inspection Program page offers an interactive map of all lead service line locations within the Village's water service area, and Public Works conducts free in-home plumbing inspections (about 5 minutes) to determine service line material — schedule by calling 847-870-5640. Illinois American Water area residents must contact Illinois American instead.
How to get into the program
Contact Public Works BEFORE commencing any work: 847-870-5640 or [email protected]. Technical/installation questions: Village Plumbing Inspector 847-870-5675. Work requires a permit from the Building and Inspection Services Department. Program documents (program description, SOP, IDPH waiver form) are linked on the program page.
Worth knowing
Inventory driven by the Illinois EPA mandate (415 ILCS 5) for a comprehensive service line inventory; residents who receive a letter are asked to schedule the free inspection. The Village page explicitly warns about a misleading GreenTech Plumbing solicitation letter and states the Village cost-share program "does not fund 100% of the replacement costs." Search results attribute to the Village's Water Main Improvements page a statement that during water main improvement projects the Village replaces the entire lead service line (main to meter) at no cost with a signed opt-out waiver, but that live page returns 403 and its archived copies predate the statement, so it could not be verified quote-level from an official page actually read. mountprospect.org blocks automated fetches (Akamai 403); content above was read from Wayback Machine snapshots of the official pages dated 2026-03-16 (cost-share) and 2026-05-13 (inspection program).
Sources (Mount Prospect official pages , checked Jul 2026): www.mountprospect.org, www.mountprospect.org — program terms change; always confirm current details with the municipality.
The Illinois picture
Illinois' Lead Service Line Replacement and Notification Act requires every community water supply to inventory its service lines and replace lead ones on a state-mandated schedule. Two practical consequences for homeowners: your municipality can tell you what your line is made of, and full replacement — not partial — is the standard when work happens. Many suburbs coordinate replacements with water-main projects, which is often when the cost-sharing is most generous.
Where we come in
Remodels are where lead lines get discovered — kitchen and bath projects expose the plumbing, and permit inspections check service-line material against the municipal inventory. When that happens on a GS project in Mount Prospect, we flag it early, point you at the program above before anyone spends your money, run the replacement through our Illinois-licensed plumbing and excavation partners, and restore everything the dig touched.
GS Construction & Remodeling is a licensed general contractor, not a municipal agency. Program details above summarize official municipal sources and change over time — confirm current terms with Mount Prospect before making decisions based on them.
Lead pipes in Mount Prospect — common questions
- Who pays for lead pipe replacement in Mount Prospect?
-
Official page: "The Village will reimburse 100% of the cost to replace the service line from the water main to the water shutoff valve, known as the B-box. And 2/3 of the cost to replace the shutoff valve to the water meter, but not more than $10,000 of the actual expenses incurred. Low-income homeowners may be eligible for a 0% interest deferred loan." Program covers replacing lead or galvanized steel service with copper from the public water main to the water meter inside the property; homeowners, multi-family, and commercial buildings are eligible. Eligibility is limited to Village of Mount Prospect water customers — Illinois American Water Company customers and residents with privately owned wells are not eligible. Homeowner pays 1/3 of the B-box-to-water-meter (private) portion, any amount above the $10,000 reimbursement cap, plus Village permit fees and bonds ("All Applicable permit fees and bonds will apply"). Only work performed with a valid Village of Mount Prospect permit is considered, and the program is not retroactive — work performed in the past is not eligible; the Village advises contacting Public Works (847-870-5640) before commencing any work. Program terms change — confirm current details with the municipality before planning around them.
- How do I find out if my Mount Prospect home has a lead water line?
-
The Village's Lead Service Inspection Program page offers an interactive map of all lead service line locations within the Village's water service area, and Public Works conducts free in-home plumbing inspections (about 5 minutes) to determine service line material — schedule by calling 847-870-5640. Illinois American Water area residents must contact Illinois American instead.
- Does GS Construction replace lead service lines?
-
Service-line replacement itself is licensed plumbing and excavation work — on GS projects it runs through our Illinois-licensed plumbing and excavation partners, and we handle what comes after: restoring the yard, landscaping edges, and any interior finishes the work touched. If a remodel uncovers a lead line, we flag it and point you at the municipal program before anyone spends your money.
- Why do lead lines come up during remodels?
-
Kitchen and bathroom remodels expose the plumbing where it enters the home, and permit inspections increasingly check service-line material against the municipal inventory Illinois law requires. Finding out mid-project is normal — knowing your village's program before demo day is better.
Remodeling in Mount Prospect?
We check service-line implications as part of scoping kitchen, bath, and whole-home remodels — free in-home estimate, itemized scope.