St. Charles
Pre-Purchase Sewer Inspection in St. Charles
The City of St. Charles runs its own sewer system, not MSD, and its lateral repair program reimburses part of an owner-arranged repair for qualifying homes inside City limits. A pre-purchase sewer inspection records the visible condition of the accessible lateral on video, with written findings, before you close.
A City-run system, and a lateral that becomes yours
In St. Charles the public sewer is run by the City’s Public Works Sewer Division, not by MSD, so guidance written for MSD customers does not carry over to a home here. The City Code describes the sewer lateral as the part of a residential property’s sanitary sewer piping that runs from the foundation to a sewer main, and the City’s program is built around owner-arranged repair: the owner collects the bids and chooses the contractor. After closing, that owner is you.
A pre-purchase inspection is how you see that line first. It documents visible conditions in the section the camera reaches, on the day of the visit, with the video and written findings. It does not show where the City main is, and we did not find a published rule on who owns the part of a lateral under the street, so confirm that with the City.
No sale-time sewer rule found, and the City-limits question
We did not find a City rule that requires a sewer lateral inspection when a home is sold, or a sewer-lateral disclosure rule, in the City materials we reviewed. That is “none found”, not a confirmed absence, so a buyer who wants evidence of the lateral has to ask for it. The City does require an occupancy inspection for long-term rentals before the first tenant moves in and between tenants. The page we reviewed does not describe it as a sewer inspection, so an investor should not read it as one.
Two questions are worth settling during the purchase, and a scope answers neither. The City’s lateral program applies only inside City limits, not to a home outside them even if it pays a sewer bill to the City, so confirm the address is inside the City. And the program asks for proof of ownership or owner consent and proof that property taxes and City bills are paid, so ask your agent and Public Works how that fits your timeline. Findings are informational, not legal advice.
What the City’s program asks for, and what a scope adds
The City says its Sewer Lateral Repair Program reimburses 90 percent of the authorized cost of repairing a defective residential lateral, up to $7,500 per participant. Those are the City’s terms, not our prices. The City Code sets the annual fee at $28 on the real estate tax bill; some City pages still show $20, so confirm the current figure with Public Works. A share of any repair stays with the owner, and the program excludes landscaping and ornamental structures.
The City starts from a cabled line. It asks for written certification from a licensed master plumber or master drainlayer that the lateral was cabled and that cabling did not resolve the problem, then sends its own camera to set the repair scope. So our inspection does not replace the City’s, and we make no claim that the City accepts an outside report or that our work satisfies the cabling statement. What a scope can do before you close is record whether the accessible line shows a blockage or a visible defect, and where along it, measured from where the camera entered.
The City says the program depends on fee revenue. We found no published fund balance, waiting list or processing time, so do not assume funds or a timeline. Confirm current terms with Public Works at (636) 949-3363 (the City’s number, not ours). The contractors you hire perform approved repairs. The Sewer Pros inspects and documents; it does not perform repairs or replacements.
A 1986 median year built does not tell you the pipe
The U.S. Census Bureau’s 2024 American Community Survey 5-year estimates put the median year built for St. Charles city homes at 1986 (margin of error 2 years), across about 32,300 housing units. About 62 percent were built in 1980 or later and about 7 percent in 1939 or earlier (the percentages are our arithmetic on the Census rows). These figures describe the city as a whole, not every address the City sewer serves.
Age alone cannot answer the sewer question: the City does not publish a pipe material or installation era, and a drain that still works is not proof of a sound pipe. A scope records what is visible in the part of the line it reaches. A visibly clear line is not proof that the whole line, or the ground around it, is in good condition.
Public sewer work nearby does not tell you either. The City’s May 2026 departmental report describes a sanitary manhole in the middle of a creek on Hackmann Road that it says contributes to surcharging and backups, and says the manhole and piping are planned to be relocated; we found no current status. The Sewer Division also maintains a sewer vacuum system in Newtown, a feature of that neighborhood. Only an inspection of the lateral can show the condition of that line.
When to call
An older home
Pipe age is one factor municipal sources list among possible causes of lateral problems. No rule sets an age at which a scope is required, so this is a buyer's judgment.
A short inspection period
Your purchase agreement sets the window, and it can be short. Request service early and note your deadline.
No record of the line's condition
If nobody can show you what the line looked like, a camera inspection gives you a record of what was visible on the day of the visit.
Confirm the address is inside City limits
St. Charles’s lateral program applies only inside City limits, even for a home that pays a sewer bill to the City. Confirm the address with the City before you plan around the program.
What's included
Inspection video
When a camera is used, you receive the inspection video.
Written findings
Written findings are included.
Visible conditions noted
The findings note the conditions that are visible inside the line.
Parts not viewed, stated
Any part of the line that could not be viewed is noted, so the record says what it does not cover.
An identified entry point
The technician identifies an accessible entry point, commonly an exterior cleanout.
Records you can share
Share the video and written findings with your agent and your home inspector.
What happens on site
Request
Choose your service area, tell us about the property, and note your inspection deadline if you have one.
Access
The technician identifies an accessible entry point, commonly an exterior cleanout.
Camera run
A camera on a flexible push cable is advanced through the accessible line while the technician watches the live view. Our equipment includes the SeeSnake CS12x and the SeeSnake Standard Camera Reel with TruSense.
Video
When a camera is used, you receive the inspection video.
Written findings
Written findings are included. Ask whether they note any part of the line that could not be viewed, and why.
Sewer Inspection, Diagnostics & Cleaning Services
The Sewer Pros provides sewer camera inspections, sewer diagnostics, sewer cleaning, hydro jetting, sewer line locating, and drain cleaning for residential properties. We document the conditions we observe so property owners, homebuyers, and property managers can understand the issue and consider appropriate next steps.
Sewer Camera Inspection
A camera inspection of the accessible sewer line, documenting what is visible. It can help identify observed conditions and support an informed next-step decision.
Sewer Cleaning
Remove buildup and obstructions from sewer lines when cleaning is appropriate. A camera inspection can help document line conditions before or after cleaning.
Hydro Jetting
Use high-pressure water to clean eligible sewer lines. Whether jetting is appropriate depends on the line’s observed condition.
Sewer Cleaning & Camera Inspection
Combine cleaning with visual documentation of the line. See what was observed and whether cleaning changed the conditions visible by camera.
Sewer Line Locating
Help identify the route of an accessible sewer line and locate a specific area when conditions allow. Useful when planning further evaluation or work.
Drain Cleaning
Address buildup or blockages in drains serving sinks, tubs, and other fixtures. The service focuses on the affected drain and the reported symptoms.
Pre-Purchase Sewer Inspection
Get a visual assessment of accessible portions of the sewer line before buying a property. The findings can help inform your due diligence.
Recurring Sewer Backup Diagnosis
Investigate recurring backups and document conditions observed during the inspection. Findings can help clarify what may be contributing to the problem.
Preventative Sewer Maintenance
Arrange sewer inspection or cleaning based on the line’s condition and service needs. Recommendations should be guided by observed evidence.
How we work
The inspection is the product
Finding out what is happening in the line is the job, not a step toward selling a repair.
You see the evidence
Conditions found in the line are documented so you can look at them yourself.
Sewer and drain specialists
Sewer inspection, diagnostics, locating, and cleaning, rather than general plumbing.
The next step stays your decision
If the line needs work beyond cleaning, you decide what to do about it and who does it.
Other St. Louis area locations
Featured service locations
St. Louis City, MO
MSD runs the public sewer for the whole city, and the lateral from your building to that main is the owner’s to maintain.
ZIP codes: 63101, 63102, 63103, 63104, 63106, 63107, 63108, 63109, 63110, 63111, 63112, 63113, 63115, 63116, 63118, 63120, 63139, 63147
Explore St. Louis City
Ballwin, MO
Ballwin runs its own lateral repair program, which starts at the outside wall of the house. A camera inspection shows where along the line a defect sits.
ZIP codes: 63011, 63021
Explore Ballwin
Florissant, MO
Florissant’s City lateral program stops five feet from the foundation, so where along the line a defect sits matters.
ZIP codes: 63031, 63033
Explore Florissant
Chesterfield, MO
Chesterfield’s City lateral program starts the eligible lateral three to five feet outside the foundation and treats routine root removal as maintenance.
ZIP codes: 63005, 63017
Explore Chesterfield
Do not see your community listed?
These featured locations do not represent the full limit of our greater St. Louis service area. Tell us where the property is located and what is happening with the sewer line, and we will confirm whether service is currently available before you schedule.
What our customers say
4.9 out of 5from 595 Google reviews · as of
Common questions about Pre-Purchase Sewer Inspection in St. Charles
In St. Charles
Who runs the sewer system in St. Charles, and is it MSD?
The City of St. Charles runs its own sanitary sewer system through the Sewer Division of Public Works. The City says it has two sanitary sewer treatment plants and 30 lift stations, operated and maintained under contract. MSD describes its service area as St. Louis City and about 90 percent of St. Louis County, and St. Charles is in St. Charles County, so it sits outside the area MSD defines as its service area. MSD’s page does not name St. Charles, so confirm for a specific address. Sources: City of St. Charles Sewer Division and Wastewater Treatment pages; MSD service area page.
Does St. Charles have a sewer lateral repair program, and what does it cost?
Yes. The City’s Sewer Lateral Repair Program began January 1, 2003. The City Code sets an annual fee of $28 on residential property served by City sewer, collected on the real estate tax bill. Some City web pages still show $20, so confirm the current amount with Public Works. Eligible homes inside City limits are enrolled automatically. Sources: City Code section 150.030 and Chapter 705; City Residential Programs page.
Which St. Charles homes qualify?
The program covers residential buildings of up to six units inside City limits, including single-family homes, duplexes, triplexes and condominium units with individual lateral connections. A home outside City limits is not eligible even if it pays a sewer bill to the City. The City’s information sheet also excludes buildings of seven or more units, commercial and industrial property, and septic systems. An applicant must show ownership or owner consent and that property taxes and City bills are paid. Sources: City sewer lateral FAQ; City Code section 705.300; City program information sheet.
How much does the St. Charles program reimburse?
The City Code says it reimburses 90 percent of authorized costs, up to $7,500 per participant. The City describes this as 90 percent of the lowest of three bids. Reimbursement depends on an approved application and on available fee revenue, so it is not automatic, and a share of any repair stays with the owner. Sources: City Code sections 705.290, 705.320 and 705.330; City sewer lateral FAQ.
What does the program cover and exclude?
It covers patching or replacement of a defective residential lateral, associated digging, dirt replacement and seeding, plus sidewalks, driveways and pavement that must be replaced for safe occupancy. It excludes replacement of landscaping or ornamental structures. The City’s undated information sheet adds exclusions for the initial cabling, the camera inspection cost if the line is sound, and repeat claims within 12 months; confirm those with Public Works. Sources: City Code section 705.270; City program information sheet.
What do I have to do before I apply?
Have the lateral cabled by a plumber or drainlayer first. The Code asks for written certification from a properly licensed master plumber or master drainlayer that the lateral has been cabled and that cabling did not resolve the problem, within six months of the application, plus a written problem statement. After you apply, the City’s program administrator schedules a camera investigation and you collect at least three bids. Sources: City Code section 705.300 and 705.310; City sewer lateral FAQ.
Does a St. Charles lateral repair need a permit?
The City’s Building Division lists repair or replacement of sewer laterals among work that generally requires a permit. For smaller repairs outside the program the City says a charge permit and inspection may apply, arranged through Community Development at (636) 949-3222 or the City’s online permitting portal, with a $50 fee for each required inspection. We did not find a general contractor licensing rule for lateral repairs beyond the City-approved contractors required for program bids. Sources: City Building Division page; City Online Permitting page.
Is a sewer inspection required before buying a St. Charles home?
None found in the City materials we reviewed. The City does require an occupancy inspection for long-term rentals, but the page does not describe it as a sewer inspection, and we did not find a sewer-lateral disclosure rule. Confirm the address is inside City limits, since the lateral program does not cover homes outside it. Sources: City Inspections page; City sewer lateral FAQ.
Do you repair or replace sewer lines?
No. We inspect, locate, diagnose and clean. That independence is the point: our recommendations are not built around selling a repair.
The basics
What is a pre-purchase sewer inspection?
What is a sewer lateral?
Is a sewer scope included in a regular home inspection?
Where does the camera go in?
What if there is no cleanout, and do you have to pull a toilet?
What it can and cannot see
What does a sewer scope look for?
What does a sewer inspection not show?
What does a clear sewer scope mean?
What happens if the camera cannot get through the line?
Can a sewer camera see through standing water?
Can a sewer camera find a belly or sag?
Can a sewer camera find a leak?
Can a sewer scope tell what kind of pipe I have?
Does a sewer scope tell me if the pipe needs to be replaced?
What happens if the scope finds roots?
Cleaning and locating
Do I need to clean the sewer before a camera inspection?
Does a sewer scope include cleaning or hydro jetting?
No. A pre-purchase sewer inspection is a camera inspection. Cleaning is a separate service. If the camera cannot pass, ask what options apply. See sewer cleaning, hydro jetting, and sewer cleaning and camera inspection.
Can a sewer scope tell where a problem is in the yard?
A camera shows what is inside the pipe, not where the pipe sits in your yard. Sewer line locating can estimate a position from the surface, and a locate is an estimate, not a survey. Ask whether locating is part of your visit.
Buying and timing
Should I get a sewer scope before buying a house?
Is a sewer scope required when buying or selling a house?
Is a sewer scope worth it for an older house, or one with no plumbing problems?
When should I schedule a sewer scope during the inspection period?
How long does a sewer scope take?
How much does a sewer scope cost?
Do I need to be there for the appointment?
Records and next steps
Do I get a video of the sewer inspection?
Do I get written findings from a sewer inspection?
What should a sewer inspection record include?
What should I ask before approving major sewer work?
Sources
- City of St. Charles: Sanitary Sewer (Sewer Division) (2023)
- City of St. Charles: Wastewater Treatment (undated)
- City of St. Charles: Public Works (undated)
- City Code Chapter 705, Article V: Sewer Lateral Repair Program (most recent ordinance cited: Ord. 22-167, December 20, 2022)
- City Code section 150.030: Schedule of fees (Ord. 26-021, March 3, 2026)
- City of St. Charles: Sewer Lateral Repair Program FAQ (undated; shows an older $20 fee)
- City of St. Charles: Residential Programs (undated; program began January 1, 2003)
- City of St. Charles: Residential Sanitary Sewer Lateral Program information sheet (undated)
- City of St. Charles: Online Permitting (undated)
- City of St. Charles: Building Division (2021)
- City of St. Charles: Inspections (undated)
- City of St. Charles: May 2026 Departmental Report (May 1, 2026)
- MSD Project Clear: Service area (updated February 2020)
- U.S. Census Bureau: ACS 2024 5-year, table B25035, St. Charles city, Missouri
- U.S. Census Bureau: ACS 2024 5-year, table B25034, St. Charles city, Missouri
Last reviewed: October 3, 2026. Official guidance can change, so confirm details with the City for your address.
Schedule a pre-purchase sewer inspection in St. Charles
Request service
Step 1 of 4