Manhole Rehabilitation, Repair and Other Sewer Structure Rehab

Manholes and other sewer structures are susceptible to aging and deterioration, threatening the integrity of the whole sanitary system. CME's manhole rehabilitation and structure repair services are comprehensive. Our team can tackle any project, no matter how intensive, and we use techniques designed for minimal interruption of day-to-day city and sewer operations.

As an HK Solutions Group company, CME now offers three advanced structural manhole rehabilitation services: Monoform™, Monoform PLUS™ for 100% corrosion resistance and Monoform HEX™ for new manhole installation. Monoform™ is an enhanced manhole rehabilitation solution that enables technicians to restore existing sewer manholes using an ABS plastic forming system and ready mixed concrete. It is the basis for all of our advanced structural manhole lining option.

Manhole Rehabilitation and Sewer Rehabilitation Contractors

We offer a number of manhole rehab and repair services, along with sewer rehabilitation and inspections, monitoring and preventive maintenance to make sure manholes and sewer lines are functioning effectively. Learn more about our manhole rehabilitation services or contact us at 513-672-8302.

Manhole Bench & Invert Repair Learn More

Our team is equipped with the tools and high strength specialty concrete materials to reestablish smooth flow lines from inlet piping to outlet piping. Our bench and invert repair can help restore proper flow throughout the sanitary system.

During bench and invert restoration, HK Solutions Group relies on a unique fiberglass lining for manhole rehab to create defined flow channels. This method is efficient, cost effective and long-lasting.

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Manhole Grouting & Sealing for Leak Repair Learn More

Manhole Grouting and Sealing for Leak Repair

HK's manhole rehabilitation technicians use safe, efficient processes to repair and prevent manhole leaking. We know groundwater leaking can wreak havoc on a sewer system, so we use specialized manhole leak repair techniques and tools in order to keep sewer structures sealed against infiltration.

For manhole sealing, we pressure-inject chemical grouts, which enables us to avoid unnecessary digging, trenches or costly replacements. Chemical grouts permanently seal active groundwater infiltration and stabilize soils around the manhole. This manhole leak repair process is both environmentally friendly and budget-conscious.

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Manhole Inspections Learn More

Workers performing a manhole inspection.

MACP Manhole Inspection Services

In addition to our CCTV pipe inspection capabilities, the CME team is also certified to conduct National Association of Sewer Service Companies (NASSCO) Level 2 digital, 3D manhole inspections. This advanced technology is able to detect deficiencies as small as 1mm in size on the interior surface of the manhole.

In the capable hands of our Manhole Assessment Certification Program (MACP) trained technicians, we use this technology to expertly analyze each scan and compile a report listing identified defects by type and severity. We also highlight the cost for any recommended manhole repairs or structural rehabilitation needed.

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Manhole Liner Systems & Solutions Learn More

Manhole Lining Systems and Solutions

Installing a manhole lining for corrosion protection can prevent structural cracks and holes, eliminate infiltration and generally extend the life of manhole structures. The HK Solutions team has robust anti-corrosion coating systems for manholes, and our process is safe and efficient.

We are proud to be an industry leader in the application of geopolymer linings for manhole rehab, along with other manhole coating products. These manhole liner systems are designed to help reverse the effects of corrosion and slow future erosion.

Cementitious coatings are designed to repair aging manhole structures, enhance their service life and eliminate infiltration. We use an array of different products and materials for manhole lining and rehab, such as the Quadex Lining System, a leading solution for restoring severely deteriorated sanitary system infrastructure. We do not take a one-size-fits-all approach to sewer system restoration. HK Solutions offers customized products and solutions based on each customer's unique needs.

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Monoform Trenchless Manhole Rehabilitation

Monoform for No-Dig Manhole Rehab Learn More

Our Monoform™ Solution for No-Dig Manhole Rehab

Sometimes, manhole leaking is evidence of a bigger problem. When we diagnose more severe manhole issues, our team can perform structural manhole rehab for sewage systems. This trenchless manhole rehab process allows for radical rehabilitation without interrupting the day-to-day flow of the sanitary system.

Our Monoform™ solution is an ABS plastic interior forming system which allows technicians to pour ready mixed concrete to rehabilitate existing sanitary sewer manholes, eliminating infiltration and restoring structural integrity from within the existing manhole.

The Monoform™ process is a no-dig manhole rehabilitation option with unique benefits when compared to traditional structural manhole rehab techniques.

No trench or excavation needed
Avoid disrupting sanitary services and other utilities in the surrounding area
Avoid traffic issues and detours
Eliminate cost and hassle of street restoration after the project is done
Eliminate settling compaction issues that typically result from conventional manhole rehab for sewage systems
Avoid the noise and disruption of excavation process and earthmoving equipment

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Monoform HEX Manhole Installation with Hydro-Excavation Learn More

Monoform HEX™

Monoform HEX™ is a structural manhole construction and installation solution paired with the power of hydro-excavation. Monoform HEX™ is the ideal solution for installing access manholes in areas that are sensitive to open excavations, like levees, and facilities with substantial sub-surface infrastructure such as rail yards, power plants and heavy industrial facilities, where minimizing the impacts of excavation is a priority.

Hydro-excavation is a safe and non-destructive form of excavation used when working around delicate underground utilities or in situations where earthmoving needs to be minimized or eliminated. The Monoform HEX™ process allows us to excavate around a manhole with precision and ease, using pressurized water and vacuuming to loosen and remove materials. Visit our parent company, HK Solutions Group, to learn more about Monoform HEX™.

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Monoform PLUS for Corrosion-Resistant Manhole Rehabilitation Learn More

Monoform PLUS™

Monoform PLUS™ is one of HK's newest manhole rehab services. Using our Monoform™ no-dig manhole repair solution paired with HDPE (High Density Polyethylene) Monoform+™ produces a 100% structural and 100% corrosion-resistant solution for manhole rehab. HDPE plastic is known for its strength and corrosion resistance. It is also suitable for a wide variety of industrial and municipal applications.

In the past, AGRU HDPE manhole lining solutions were typically used exclusively in new construction projects, but AGRU products' anti-corrosion properties make them an attractive alternative to other forms of concrete protection for structural manhole rehab projects. Reach out to the HK team to learn more about the benefits of high density PE manhole lining and rehabilitation techniques.

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Wet Well Rehab and Sewer Lift Station Repair Learn More

Wet Well Rehab and Sewer Lift Station Repair

Wet wells and sewer lift stations are an essential part of a sanitary sewer system, so they need to be in good repair in order for everything to run smoothly. We can use techniques similar to our manhole rehab methods to restore and repair wet wells, sewer lift stations and other sewer structures. Whenever possible, our team will use the Monoform™, Monoform PLUS™ and Monoform HEX™ trenchless manhole rehab process on other structures. These no-dig solutions enable us to complete projects in a matter of hours while avoiding serious interruptions to traffic and other utilities.

If you encounter aging sewer structures in need of sealing, grouting or corrosion protection coating, contact CME. Our team will be happy to tackle your project safely and efficiently.

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Comparing Monoform Solutions for Manhole Rehabilitation

Our three Monoform™ services are all unique, proprietary structural manhole rehabilitation solutions that don't require open-cut excavation. They all represent cost savings with minimal interruption to surrounding utilities. They each have unique benefits and different recommended use cases, however.

Monoform PLUS™: Manhole Rehabilitation with Anti-Corrosion Benefits

The Monoform PLUS™ process is Monoform™ with the added benefit of AGRU corrosion-resistant HDPE plastic. HDPE manhole linings offer high corrosion resistance and long term durability when compared to traditional concrete manhole structures. Monoform+™ is a polyethylene manhole solution perfect for applications where standing water and high hydrogen sulfide concentrations rapidly deteriorate concrete manholes and structures.

Learn more about our Monoform PLUS™ solution:

Monoform HEX™: Manhole Installation with Hydro-Excavation

Monoform HEX™ allows for structural manhole construction in situations where excavation needs to be minimal and precise. The hydro-excavation process allows for advanced precision and reduced risk when working around delicate utilities. Monoform HEX™ is great for applications like levee projects, where surrounding soil needs to remain intact and undisturbed, and wetlands, where traditional excavation is not possible.

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Monoform™: A Trenchless Manhole Rehab Solution

Our original Monoform™ service is a cost-effective, trenchless approach to structural manhole rehabilitation. The Monoform™ process involves assembling a plastic form inside a deteriorating manhole, pouring ready mixed concrete around the form and then removing the form. Monoform™ is an excellent solution for typical manhole repair and rehabilitation projects in situations that don't require additional fortification or hydro-excavation.

See Monoform™ in action:

Common Manhole and Sewer Problems

CME's manhole rehabilitation contractors are skilled at mitigating a wide variety of common manhole problems and restoring flow channels in aging sewer structures. Municipal and industrial customers often contact CME Pipe Lining for assistance with one or more of the following manhole structure problems:

Manhole leaking
Cracked manholes
Groundwater infiltration in sewers
Manhole failure
Failing sewer structures
H2S (Hydrogen Sulfide) Concrete Corrosion
And more

Our technicians use a variety of trenchless techniques to restore and reinforce manhole structures, as well as prevent future manhole problems from impacting the sewer system down the road. Mitigation and prevention are especially important for sewer systems suffering from inflow and infiltration (i&i) issues.

Inflow & Infiltration (I&I)

Inflow and infiltration refers to excess water that flows into sewer pipes from groundwater and stormwater. Groundwater typically seeps into sewer pipes and manhole structures with cracks, holes, faulty connections or other structural issues. Stormwater flows into manholes through holes in manhole covers, roof drain downspouts, foundation drains and drain cross-connections. Inflow and infiltration in sewer systems and manhole structures can typically be resolved with structural manhole rehab.

We offer a variety of inflow and infiltration solutions such as our Monform™ and Monoform PLUS™ processes. Monoform PLUS™ is especially useful in areas where hydrogen sulfide corrosion exacerbates the concrete deterioration process.

Corroded Manholes

Hydrogen Sulfide (H2S) Challenges

In certain geographic areas, high concentration of hydrogen sulfide in the groundwater can cause rapid concrete deterioration and manhole failure. We offer H2S corrosion protection with our Monoform PLUS™ manhole rehab solution. Monoform PLUS™ leverages the corrosion-resistant power of HDPE plastic to reinforce and seal leaking manholes. Monoform PLUS™ is a long-term solution to combat H2S corrosion and prevent manhole infiltration.

Sulfuric Acid Corrosion

Just as city sewers face maintenance challenges in areas where acidic groundwater corrodes sewer infrastructure, industrial facilities face similar issues. Many factories and facilities handling caustic chemicals have process-water discharge systems with high sulfuric acid content that corrodes subsurface infrastructure over time, leading to infiltration, inflow and other issues. Learn how these manhole rehabilitation solutions helped one industrial facility rehabilitate corroded concrete manholes without causing disruptions to business.

Sewer Rehabilitation & Repair of Other Structures

We can do so much more than just manhole lining and rehabilitation. In addition to our focus on Monoform+™, Monoform HEX™ and other manhole rehabilitation techniques, CME is a trusted pipeline inspection company, offering CCTV inspections and pipeline rehab services, including Cured in Place Pipe (CIPP) lining.

The CME team can inspect and repair all types of sewer structures, and we offer a number of other industrial and municipal services.

Contact CME Pipe Lining

Our sewer experts are ready to take on manhole sealing and leak repair, structural manhole rehabilitation, HDPE manhole lining for corrosion protection, sewer lift station repair and more.

If you want more information about CME's manhole rehab services, Monoform™, Monoform PLUS™, Monoform HEX™ or our repair options for other sewer structures, reach out to us. Our goal is to keep the sewer system functioning properly so communities can enjoy uninterrupted sanitary services. Send us a message or give us a call at 513-672-8302.