What Is a Service Line Coverage Add-On for Homeowners Insurance?

This add-on generally applies to the underground utility lines that run from the street or main connection point to your house. Commonly covered lines include your main water supply pipe and the sewer or septic lateral line. Electrical and communication lines, like those for cable or telephone, may also be included under this type of coverage.

The specific lines covered depend entirely on the language of your insurance policy. You must review your policy documents or ask your agent for the exact list. Some add-ons might cover natural gas lines or sprinkler system piping, while others may not. Knowing what is included helps you understand your financial protection.

• Main water supply pipe
• Sewer or septic lateral line
• Underground electrical lines
• Communication lines (cable, internet)
• Natural gas lines (sometimes)
• Underground sprinkler system pipes (sometimes)

Underground pipes and cables can fail for several reasons. Age and material corrosion are primary factors, especially with older metal pipes. Ground movement from freezing, thawing, or soil erosion can also stress and break lines. Invasive tree roots seeking moisture are a frequent cause of cracks in sewer and water lines.

External pressure from construction activity or heavy vehicle traffic above the line can cause damage. Sometimes, accidental digging during landscaping projects strikes and severs a line. General wear and tear over decades weakens pipes until they finally leak or collapse, often without any visible warning above ground.

If you notice signs of a line break, like a sudden loss of water pressure, soggy patches in your yard, or sewage backing up, act quickly. First, shut off your home's main water valve to prevent further water damage inside. Then, contact the appropriate public utility to confirm the issue is not on their side of the property line.

Document everything with photos and notes. Contact your insurance agent to report the problem and ask if your service line endorsement applies. You will likely need to hire a professional plumber or utility contractor to assess and repair the damage. Keep all receipts and records for your insurance claim process.