Common Sewer Line Issues in Dedham Homes and How to Detect Them Early

Sewer line issues are one of the most stressful and expensive problems a homeowner can face — and they’re more common in older homes like many found in Dedham, MA. The good news? Many of these issues can be caught early and fixed before they become emergencies. 

Here’s a quick guide to the most common sewer line problems in Dedham homes and how to spot the warning signs before it’s too late.

1. Tree Root Intrusion 

Many older neighborhoods in Dedham have mature trees, which means your sewer lines may be at risk of tree root invasion. Roots naturally seek out moisture and your sewer pipes are an ideal target.

Signs to Watch For:

  • Slow-draining sinks, tubs, or toilets 
  • Gurgling noises from drains
  • Frequent clogs, even after snaking 

Early detection tip: If only one drain is slow, it might be a localized clog. But if multiple fixtures are affected, your main sewer line could be the problem.

2. Pipe Corrosion or Deterioration 

Older homes often have sewer lines made from cast iron or clay. Over time, these materials can corrode or break down, causing leaks or blockages underground.

Warning Signs: 

  • Unpleasant sewage smells in your yard or basement 
  • Water backing up in low-lying drains 

  • Patches of unusually green grass in the yard (could indicate a leak) 

Scheduling a camera inspection is the most accurate way to check for corrosion and hidden damage. 

3. Sagging or “Bellied” Pipes 

A sewer line may begin to sag due to soil shifting, poor installation, or ground movement. This causes wastewater to collect in the belly, leading to blockages. 

Early Symptoms: 

  • Slow drains even after cleaning
  • Waste backing up during heavy water use

  • Standing water in basement floor drains

Professional plumbers can pinpoint these sags with high-definition video inspection tools.

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