When buying a home, it is easy to focus on what you can see: the kitchen, bathrooms, flooring, or backyard. However, one of the most important systems of a property may be buried underground.
The sewer line carries wastewater away from the home, and problems with this line can lead to slow drains, backups, unpleasant odors, and expensive repairs. Buyers should consider whether a separate sewer scope inspection is appropriate before closing.
Why Sewer Line Problems Can Go Undetected
Underground sewer pipes can deteriorate over time. Depending on the pipe material, age, soil conditions, and surrounding tree roots, a line may develop cracks, obstructions, separated joints, and other defects.
Unfortunately, a sewer line can have a significant problem even when bathrooms and sinks appear to be functioning normally. A routine home inspection generally cannot establish the condition of the entire underground sewer line without specialized equipment.
Four Warning Signs to Watch For
- Repeatedly Slow Drains: a single slow sink may have a simple local blockage. However, when several fixtures drain slowly at the same time, there may be a larger problem at hand in the drainage system.
- Frequent Sewer Backups: Recurring backups or wastewater appearing in lower-level fixtures should be taken seriously. These symptoms may indicate blockage or another drainage issue that requires professional evaluation.
- Unusual Odors: Persistent sewer-like odors around drains, basements, or exterior cleanouts may indicate a plumbing or draining concern. The source should be investigated rather than masked.
- Signs of Previous Drainage Problems: Ask the seller about prior repairs, backups, or recurring plumbing service calls. Repair invoices and maintenance records may provide useful information about the system’s history.
These signs do not automatically mean that the underground sewer line is damaged, but they will help determine if additional investigation is warranted.
Why Buyers Should Consider a Sewer Scope Before Closing on a House
A sewer scope inspection typically involves inserting a specialized camera into an accessible sewer cleanout or other suitable access point. The camera allows a qualified professional to view portions of the pipe interior and identify visible concerns such as obstructions, cracks, root intrusion, or areas where the pipe appears damaged.
Discovering a sewer problem before completing a purchase gives buyers an opportunity to understand the issue and discuss next steps within the terms and deadlines of their purchase agreement.
Depending on the findings, buyers may request an additional assessment, obtain repair estimates, negotiate with the seller, or budget for future work.
Protect Your Investment with First Choice Inspectors
A home inspection provides valuable information about a property’s visible and accessible components, but underground sewer lines may require a separate, specialized evaluation.
First Choice Inspectors offers home inspection services and recommends considering a sewer scope to help assess the condition of the main sewer line. If you are purchasing a home or have concerns about an existing property’s drainage system, contact us at (773)429-9711 or request a quote online.