Our Expertise:

Muller, Inc. is fully equipped with the most advanced technology and equipment in the business. Our experienced utilities team continually works with land developers, heavy highways, municipalities, and utility companies to install and maintain both wet and dry underground infrastructure. We stand ready to help you install infrastructure that meets federal, state, county, and municipal code requirements throughout Maryland, Northern Virginia, and D.C.

Utility Services:

Water Installation

  • Mains
  • Services
  • Fire Lines
  • Connections to Existing Infrastructure Including Wet Tapping

Sanitary Sewer Installation

  • Gravity Sewer Mains & Services
  • Low-Pressure Force Mains, Grinder Pumps & Lift Stations
  • Water Oil Separators & Grease Traps
  • Connections to Existing Infrastructure

Storm Drain Installation

  • Storm Drain
  • Stormwater Ponds
  • Underground Facilities
  • Roadway Underdrain

Dry Utility Installation

  • Duct Bank & Conduit
  • Transformer Pads & Vaults
  • Handholes & Pull Boxes
  • Light Pole Base Installation
  • Bollard Installation
  • Manhole Overbuild and cast-in-place
  • Low Voltage Conduit
  • Telecom Conduit & Substructures

Under Slab Drainage Systems

Up close shot of a crew member directing an operator where to place the gravel in a trench.

How do you handle maintenance and repair of wet utilities after installation?

To ensure the longevity and reliability of the water, sanitary, and stormwater systems we build, we recommend the following best practices for maintenance and repair:

First, regular inspections are key to identifying potential issues early and preventing significant problems. We conduct visual inspections of above-ground components and use specialized tools like CCTV sewer cameras to inspect underground infrastructure. It’s also important to perform regular inspections after major weather events or other disruptions that may impact the utility.

Second, any necessary repairs or maintenance should be performed promptly to prevent further damage or disruptions. Our trained professionals will use appropriate tools and equipment to address issues such as leaks or breaks in pipes, damaged components, clogged pipes, or blocked drains.

Third, ongoing maintenance and cleaning can help prevent major issues from occurring. We recommend flushing pipes and drains regularly to prevent buildup and clogs, applying protective coatings to prevent corrosion, and performing regular maintenance on pumps and other equipment to maintain wet utility infrastructure.

Emergencies and unexpected disruptions can occur with wet utility infrastructure, which is why it is essential to have a plan in place for responding to these situations. We have a dedicated emergency response team on call, maintain backup equipment and supplies, and have contingency plans in place for infrastructure failures.

Our proactive approach prioritizes regular inspections, prompt repairs, and ongoing maintenance to prevent major issues from occurring. If you have any questions or concerns regarding our wet utility installation services or maintenance and repair recommendations, please don’t hesitate to contact us.

What is the process for obtaining permits and ensuring compliance with local, state and federal regulations?

Obtaining permits and complying with local, state, and federal regulations for wet utility installation can be a complex process. That’s why we provide comprehensive support throughout the entire project, including obtaining all necessary permits and coordinating with utility providers.

We maintain strong relationships with all jurisdictional authorities in Maryland, Northern Virginia, and DC, as well as with utility providers. These relationships allow us to expedite the permitting process and secure all necessary permits for your project. We will work with you to ensure that all requirements are met and that your project is completed safely, effectively, and in compliance with all applicable regulations.

In addition to obtaining permits and approvals, we will ensure that all safety protocols and regulations are followed during installation, including proper excavation and shoring practices, traffic control, and worker safety requirements. We will also maintain detailed documentation of all permits, inspections, and other compliance-related information.

Following utility installation, we will continue monitoring ongoing compliance with all regulations and requirements, including maintenance, repair, or inspection requirements. We aim to provide a comprehensive, turnkey solution for wet utility installation that minimizes risk and maximizes compliance.

Is some sort of “Shoring” needed when working in a trench?

Yes, shoring is typically needed when working in a trench to protect workers and prevent soil collapse. Shoring is a support system installed in the trench to prevent the walls from caving in or collapsing. Several types of shoring systems can be used, depending on the depth of the trench, soil conditions, and other factors.

Some common types of shoring systems include:

Hydraulic shoring: This involves using hydraulic cylinders to support trench walls.

Trench boxes: These are prefabricated boxes that are placed in the trench and provide support for the walls.

Timber shoring: This involves using timber beams and planks to create a framework of support for the trench walls.

Aluminum shoring: This involves using lightweight aluminum panels and struts to support the trench walls.

Shoring is important because it helps prevent accidents and injuries that can occur when trench walls collapse or cave in. It also helps ensure that the trench remains stable and that work can be performed safely and efficiently.

How important is it to follow the correct “percent of grade” when installing pipe?

Following the correct percent of grade is critical to ensure that water flows in the correct direction and does not cause damage. Proper slope also helps to prevent erosion or other damage to the pipe or surrounding soil. Failure to follow the correct percent of grade can result in costly repairs, legal action, and health hazards. Our team of trained professionals has the expertise and experience to properly install and slope pipes for optimal drainage and performance while complying with regulations and codes.

What site conditions are required before Muller can mobilize and start the install of wet utilities?

Before Muller can mobilize and start the installation of wet utilities, there are several site conditions that must be met to ensure safe and effective installation. These conditions can vary depending on the specific type of utility being installed and the site conditions, but some standard requirements include:

Access: There must be clear and safe access to the site for equipment and personnel.

Site preparation: The site must be properly prepared for installation, including clearing any vegetation or obstacles, grading the site as needed, and ensuring that the site is stable and free from hazards.

Utility location: The location of existing utilities must be identified and marked to ensure that they are not damaged during installation.

Soil conditions: The soil conditions must be suitable for installation, including proper compaction and stability to prevent soil collapse during excavation.

Weather conditions: Weather conditions must be suitable for installation, with no heavy rain, high winds, or other hazards that could compromise safety or affect installation quality.

Permitting: All necessary permits and approvals must be obtained from the appropriate authorities before installation can begin.

Once these site conditions have been met, Muller can mobilize and begin the installation of wet utilities. Muller can also provide assistance if you need help with any of the site preparation activities listed above.


Contact us today to request an estimate or to learn more about our utilities services.