Trenchless contractor to MSD & St. Louis-area sewer districts
Municipal trenchless sewer rehabilitation across St. Louis, MO & the Metro-East.
GreenFlow Solutions performs trenchless sewer contracts for MSD, sewer districts, and St. Louis-area municipalities on CIPP mainline & lateral lining, pipe bursting, slip lining, manhole rehabilitation, and I/I reduction — keeping streets open, residents online, and collection systems performing. Backed by our parent company, Kuesel.
Get in Touch
Talk to a Municipal Lead
Engineers, public works directors, and sewer district managers — same-day response Monday–Friday.
Contact Us →Routes to kueselinc.com/contact
Key Clients
Trusted by the St. Louis metro's largest sewer & water owners
GreenFlow Solutions is on-call for the public agencies and utilities responsible for the St. Louis region's underground infrastructure. We deliver trenchless sewer rehabilitation under public-bid specs, prevailing-wage compliance, and the reporting MSD and municipal engineers expect.
- MSD
Metropolitan St. Louis Sewer District
Regional sanitary & stormwater authority
- MAW
Missouri American Water
Statewide water & wastewater utility
- STP
City of St. Peters
Municipal public works
- OFL
City of O'Fallon, MO
Municipal public works
Also serving St. Charles County, St. Louis County, Jefferson County, and St. Clair County (IL) public works departments, sewer districts, and water utilities. Looking for a vetted trenchless contractor for your system? Let's talk.
Built for Public Sewer Owners
The trenchless sewer rehabilitation contractor for MSD, sewer districts & St. Louis-area municipalities.
GreenFlow Solutions is purpose-built to support public sewer owners across the St. Louis metro and Illinois Metro-East. We specialize in minimally invasive rehabilitation — CIPP mainline & lateral lining, pipe bursting, slip lining, and manhole rehabilitation — that extends asset life, reduces inflow & infiltration, and keeps streets, sidewalks, and residents undisturbed. Fully insured and bonded, with public bid, prevailing wage, and traffic-control experience.
- St. Louis, MO
- St. Charles, MO
- O'Fallon, MO
- Chesterfield, MO
- Kirkwood, MO
- Belleville, IL
Get in Touch
Start a Municipal Project
Get in touch with our team — we'll respond within one business day.
Contact Us →Routes to kueselinc.com/contact
How Trenchless Works
One jobsite, every trenchless method — VAC-A-TEE cleanouts, CIPMH, lateral & sectional liners, and slip lining.
From the cleanout at the property line to the manhole at the street, GreenFlow rehabilitates the entire collection system without open trenches — laterals, mains, and structures alike.
See All Trenchless Methods
What We Fix
The most common causes of failing sewers in St. Louis.
Tree-root intrusion, cracked clay and cast iron, grease buildup, offset joints, and pipe bellies all reduce capacity and drive I/I into the collection system. GreenFlow's CCTV inspection pinpoints the defect — then we rehabilitate it trenchlessly.
Schedule a Camera InspectionCapabilities
A full trenchless toolkit for municipal sewer rehabilitation in St. Louis.
From mainline CIPP and slip lining on aging trunk sewers to lateral lining programs, pipe bursting, and full manhole rehabilitation — GreenFlow gives sewer districts and municipalities one accountable contractor for the whole collection-system rehab program. Streets stay open. Residents stay online.
Trenchless Sewer Repair
Restore failing sewer lines across the St. Louis metro with minimal digging, faster turnaround, and less surface disruption to lawns, driveways, and streets.
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Pipe Bursting
Full structural replacement of failing clay, Orangeburg, cast iron, or PVC sewer lines with new HDPE — no open trench, same or upsized diameter.
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CIPP Pipe Lining
Epoxy-resin cured-in-place liners that seal cracks, roots, and infiltration in residential, commercial, and municipal sewer laterals. 50-year design life.
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Slip Lining
Rehabilitate large-diameter sanitary, storm, and culvert pipes with continuous HDPE or fiberglass carrier pipe — fast, durable, low-disruption.
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Manhole Rehabilitation
Cementitious & epoxy liners, chimney seals, and full structure repair to eliminate inflow & infiltration (I/I) and extend asset life.
Learn more →How We Help Sewer Owners
Condition assessment, planning, and execution — under one trenchless roof.
Every GreenFlow project starts with CCTV inspection and a honest assessment of pipe condition, hydraulics, and I/I sources. We help engineers and operators prioritize segments, select the right rehabilitation method, and execute on schedule and on budget — with reporting that matches MSD and municipal standards.
Talk to a Municipal LeadMunicipal-Grade Quality
Public bid documents, prevailing wage, traffic control, and reporting standards expected by MSD and municipal engineers.
I/I Reduction Focus
CIPP liners, chemical grout, manhole coatings, and chimney seals to take inflow & infiltration out of your collection system.
Mainline + Laterals
From large-diameter slip lining and CIPP trunk sewer rehab to full lateral lining programs — one accountable contractor.
Trenchless Specialists
Pipe bursting, CIPP, slip lining, and manhole rehab are our specialty — not a side line. Streets stay open, residents stay online.
Fully Insured & Bonded
Backed by our parent company Kuesel, a Missouri family-owned heavy civil contractor with deep operational experience.
24/7 Emergency Response
Collapsed mains, sinkholes, and large-diameter blockages — crews mobilize from O'Fallon, MO with vac trucks and trenchless equipment.
FAQ
Trenchless rehabilitation, answered for sewer districts & municipalities.
What MSD program managers, sewer-district operators, and municipal engineers ask before we mobilize.
Do you work with MSD and St. Louis-area sewer districts?
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Yes. GreenFlow Solutions is structured to support MSD (Metropolitan St. Louis Sewer District) and municipal sewer rehabilitation programs — including I/I (inflow & infiltration) reduction, mainline CIPP and slip lining, lateral lining programs, manhole rehabilitation, and emergency point repairs across the St. Louis metro.
What trenchless methods do you use on municipal sewer mains?
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GreenFlow installs CIPP (cured-in-place pipe) mainline liners, slip lines large-diameter sanitary and storm mains with HDPE or fiberglass carrier pipe, and performs pipe bursting on failing clay, brick, and cast iron sewers. Method selection is driven by pipe diameter, condition, depth, hydraulics, and the owner's I/I goals.
How does trenchless rehabilitation reduce I/I for sewer districts?
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CIPP liners, chemical grouting, manhole coatings, and chimney seals eliminate the cracks, joints, lateral connections, and structure defects that let groundwater into the collection system. Less I/I means lower treatment cost, fewer SSOs, and more available capacity — without rebuilding the network.
Are you set up to bid public sewer rehab projects?
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Yes. GreenFlow Solutions is fully insured and bonded, MoDOT/IDOT-prequalified through our parent company Kuesel, and experienced with public bid documents, prevailing wage, traffic control, and the reporting standards expected by MSD and municipal engineers.
Can you handle emergency mainline failures?
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Yes. We respond 24/7 to municipal sewer emergencies — collapses, sinkholes over the main, and large-diameter blockages. Crews mobilize from O'Fallon, MO with vac trucks, CCTV, and the right trenchless equipment to stabilize and rehabilitate the line.
Do you also serve commercial property owners and HOAs?
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Yes. While our focus is municipal and sewer-district work, GreenFlow rehabilitates private sanitary collection systems for industrial sites, campuses, HOAs, and commercial property owners across the St. Louis metro using the same trenchless methods.
Trusted Partnerships
Affiliations & Industry Memberships
We're active members of the industry associations that set the standards for trenchless technology, public works, and underground construction.
Start a Project
Bring GreenFlow into your next St. Louis sewer rehab program.
Whether it's a single emergency point repair or a multi-year I/I reduction program, the GreenFlow team will scope the work, propose the right trenchless method, and deliver on schedule — with the reporting MSD and municipal engineers expect.
Office: O'Fallon, Missouri
Hours: Mon–Fri, 7am–5pm · 24/7 Emergency
Get in Touch
Request a Project Estimate
Get in touch with our team — we'll respond within one business day.
Contact Us →Routes to kueselinc.com/contact