Sewer Lateral Connection Top Hat Lining

Sewer lateral connection Top Hat lining is a trenchless repair method used to seal the connection between a private sewer lateral and the city main. This area, also known as the sewer saddle or city saddle, is a common failure point in clay pipe systems and older sewer lines at the street.

What Is Sewer Lateral Connection Top Hat Lining

Top Hat lining is a specialized form of sewer saddle lining designed to create a leak proof lateral connection. The liner is shaped like a hat, allowing it to line both the lateral pipe and the main sewer at the connection point. Once installed, the Top Hat liner forms a sealed, structural connection that prevents infiltration, root intrusion, and groundwater entry.

Common Problems at Sewer Saddle Connections

• Cracked clay pipe at street connection
• Root intrusion entering through the sewer saddle
• Groundwater infiltration at the city connection
• Broken drain pipe near the main sewer
• City notices requiring sewer saddle repairs

Top Hat Lining vs Traditional Street Excavation

Traditional sewer saddle repairs often require cutting concrete, sidewalks, or street pavement to access the lateral connection. Sewer saddle relining with a Top Hat liner eliminates the need for excavation in many cases, reducing repair time and avoiding damage to streets and landscaping.

How Sewer Saddle Top Hat Installation Works

Top Hat sewer saddle lining follows a controlled trenchless repair process to ensure a long lasting and leak proof connection.

• Video inspection to confirm pipe condition and alignment
• Cleaning and removal of roots and debris at the connection
• Preparation of the Top Hat liner with epoxy resin
• Robotic placement of the liner at the lateral to city main connection
• Expansion of the liner to seal the saddle area

UV Light Curing Procedure

In many sewer saddle lining applications, a UV light procedure is used to cure the Top Hat liner. After positioning the liner, ultraviolet light is applied to harden the resin. This process creates a strong, seamless liner that bonds to the existing pipe and forms a permanent, leak proof lateral connection.

Benefits of Sewer Saddle Relining

• No street or sidewalk excavation
• Cost effective alternative to open trench repairs
• Stops leaks and prevents future infiltration
• Seals clay pipe and cast iron connections
• Long lasting trenchless repair solution

Pipes and Materials We Rehabilitate

• Clay pipe relining at city sewer connections
• Cast iron pipe relining at lateral connections
• Epoxy relining for sewer saddle repairs
• Trenchless repairs for broken drain pipe near the street

Counties We Serve

We provide sewer lateral connection Top Hat lining and sewer saddle repairs throughout Southern California, including:

• Los Angeles County
• Orange County
• Riverside County
• San Bernardino County
• Ventura County

When Top Hat Lining Is the Right Solution

Sewer saddle Top Hat lining is often the preferred solution when a city requires repair of the lateral connection or when repeated backups occur near the street. A sewer camera inspection is required to confirm suitability, as severely collapsed pipes may require replacement.