Sewer Scopes: Why They Matter When Buying a Home

When purchasing a home in Colorado, most buyers focus on the standard home inspection—but one additional service can save you tens of thousands of dollars in unexpected repairs: a sewer scope inspection.

The sewer line is one of the most expensive systems in a home to repair, and problems are often hidden underground where they cannot be seen during a standard home inspection. A sewer scope allows inspectors to look inside the main sewer line and identify issues before you finalize your purchase.

Below, we’ll explain what a sewer scope inspection is, what it checks, and why it’s one of the smartest inspections you can order during the due diligence period.

What Is a Sewer Scope Inspection?

A sewer scope inspection uses a specialized waterproof camera attached to a flexible cable that is inserted into the home’s main sewer line. The camera travels through the pipe while transmitting live video to the inspector.

This allows the inspector to visually examine the condition of the main drain line running from the home to the municipal sewer connection or septic system.

Because the line is underground, this is often the only way to see potential problems before they become major failures.

What a Sewer Scope Does (and Does Not) Inspect

A sewer scope inspection focuses specifically on the main sewer line that carries wastewater away from the home.

It does not inspect secondary drains, such as:

• Sink drains

• Shower or tub drains

• Branch drain lines inside the home

  
  

Instead, the inspection evaluates the primary line leaving the house, which is the pipe most likely to develop serious structural problems.

Problems a Sewer Scope Can Detect

Sewer scope inspections can identify several common issues that could lead to costly repairs if left undiscovered.

Root Intrusion

Tree roots are one of the most common sewer line problems. Roots naturally seek moisture and can grow into small cracks in pipes, eventually causing major blockages or pipe damage.

Pipe Offsets

Offsets occur when sections of pipe become misaligned, often due to ground shifting or soil settling. Over time, these misalignments can restrict water flow and lead to clogs.

Pipe Bellies

A belly occurs when part of the pipe sags or dips, creating a low spot where waste and debris collect. This can cause recurring clogs and slow drainage.

Blockages

Debris buildup, grease accumulation, roots, or foreign objects can create partial or complete blockages in the sewer line.

Finding these issues early can prevent major headaches—and major expenses.

Sewer Line Repairs Can Be Extremely Expensive

Main sewer line repairs are often labor intensive and disruptive.

In many cases, fixing a damaged sewer line requires contractors to:

• Dig long trenches across the yard

• Remove landscaping or hardscaping

• Excavate driveways, patios, or sidewalks in some cases

• Replace sections of pipe underground

  
  

Because of the heavy labor and equipment required, sewer repairs can easily cost many thousands—or even tens of thousands—of dollars depending on the severity of the issue.

A relatively simple sewer scope inspection can help identify these risks before you buy the home.

Sewer Scopes Are Important for Both Sewer and Septic Homes

A common misconception is that sewer scope inspections are only necessary for homes connected to city sewer systems.

In reality, homes with septic systems also have main sewer lines that run from the house to the septic tank. These pipes can develop the same problems as municipal sewer lines, including:

• Root intrusion

• Pipe damage

• Offsets

• Blockages

  
  

That means sewer scopes can be just as valuable for homes with septic systems.

Why Sewer Scopes Are Best Done During Due Diligence

The best time to perform a sewer scope inspection is during the due diligence period of a real estate contract.

If the inspection reveals a significant problem, buyers may be able to:

• Request that the seller repair the sewer line

• Negotiate a credit toward repairs

• Ask for further evaluation by a specialist

  
  

Without a sewer scope, buyers might not discover a sewer line problem until after they move in, at which point the repair costs become their responsibility.

A small investment in a sewer scope inspection can help protect buyers from unexpected and extremely expensive repairs.

Quick Summary

• A sewer scope uses a specialized camera to inspect the home’s main sewer line.

• The inspection checks the pipe running from the home to the municipal sewer system or septic tank.

• Sewer scopes do not inspect secondary drains inside the home.

• Common problems found include root intrusion, pipe offsets, bellies, and blockages.

• Sewer line repairs can require digging up yards, landscaping, or driveways, making them extremely expensive.

• Performing a sewer scope during due diligence may allow buyers to request repairs from the seller before closing.

  
  

Frequently Asked Questions

What is a sewer scope inspection?

A sewer scope inspection uses a camera inserted into the main sewer line to visually inspect the condition of the pipe and identify potential issues.

Are sewer scope inspections really necessary?

Yes. Sewer line problems are often hidden underground, and repairs can cost thousands to tens of thousands of dollars. A sewer scope helps identify these issues before purchasing a home.

Do homes with septic systems still need sewer scopes?

Yes. Homes with septic systems still have a main sewer line running from the house to the septic tank, which can develop the same problems as sewer-connected homes.

What problems can a sewer scope find?

Common issues include:

• Root intrusion

• Pipe offsets

• Pipe bellies (sagging pipes)

• Blockages or debris buildup

  
  

Does a sewer scope inspect all of the home’s drains?

No. Sewer scopes evaluate only the main sewer line leaving the home, not the individual branch drains inside the house.

Schedule Your Sewer Scope Inspection

A sewer scope inspection is one of the best ways to protect yourself from unexpected underground repair costs when buying a home.

Because these inspections are typically performed during the due diligence period, scheduling early is important to stay within your contract deadlines.

If you're purchasing a home, schedule your sewer scope inspection today and gain peace of mind before closing.

https://www.arrowhomeinspectionsinc.com/schedule-now