How to Prevent Sewage Backups: 10 Expert Tips for Homeowners
March 31st, 2025
4 min read

A good day can quickly be ruined when you discover a sewage backup in your home. As if the foul odors weren't enough, you also have to deal with drying and cleaning what's essentially wastewater. Stepping into this situation is what nightmares are made of.
Thankfully, we are here to teach you how to prevent this bad dream altogether! At Restore-It, we're not just experts in cleaning up the mess after a disaster; we're also passionate about helping you avoid those disasters in the first place.
So let's explore the common causes of sewage backups. We will also give you some practical tips and strategies to prevent these messy situations. Ready to take control of your plumbing? Read along and protect your home like a pro!
What Causes Sewage Backups?
Before we jump into prevention strategies, it's helpful to understand what causes these messy situations in the first place. Here are some common culprits:
- Clogged Drains: Hair, grease, food scraps, and other debris can accumulate in your pipes, creating a blockage.
- Tree Root Invasion: Tree roots are surprisingly strong and persistent and can infiltrate your sewer lines in search of water and nutrients. Once inside, they can cause blockages and even damage the pipes.
- Old or Damaged Pipes: Pipes don't last forever. Over time, they can corrode, crack, or collapse, especially if made of older materials like cast iron. This can lead to leaks, blockages, and eventually, backups.
- Heavy Rainfall: When it rains heavily, the sewer system can become overwhelmed, leading to backups, especially in older systems or low-lying areas.
- Municipal Sewer Line Problems: Sometimes, the problem lies outside your property. Blockages or damage to the municipal sewer line can cause backups in your home, even if your own plumbing is in good condition.
Top 10 Prevention Strategies
Since you've learned about the causes of sewage backups, how about we dive into some handy tips you can use to keep them from happening:
1. Be Mindful of What You Flush
Let's keep our toilet healthy! Please remember that only toilet paper and human waste should go down the toilet. Items like feminine hygiene products, wipes (even if they say "flushable"!), diapers, and paper towels can cause clogs in your pipes, leading to backups. And we are not the only ones saying this. In 2020, the U.S. Environmental Protection Agency (EPA) encouraged people to flush only toilet paper to prevent sewer backups.
2. Avoid Grease Buildup to Prevent Clogs
While grease and oil may appear like liquids when they're warm, they actually solidify as they cool down, turning into a sticky mess that can clog your pipes. It's best to avoid pouring grease down the drain to keep everything running smoothly. Instead, consider disposing of it in a container or allowing it to solidify before tossing it in the trash. Your pipes will truly appreciate your care!
3. Prevent Hair Clogs with Drain Strainers
Hair can often be the sneaky little troublemaker behind clogged drains, particularly in showers and bathtubs. To keep those drains happy, consider using a strainer to catch hair before it sneaks down the drain, and remember to give that strainer a good cleaning now and then. If you find that some hair has already settled in, a drain snake can be a helpful tool to clear out the blockage.
4. Regular Maintenance is Key
Just like your car needs regular oil changes and tune-ups, your plumbing deserves some love, too! Make sure to schedule regular inspections and cleanings of your sewer lines to prevent any blockages and catch potential problems before they escalate. A little preventative maintenance can save you from lots of hassle (and expense!) down the line.
5. Tree Root Troubles? Contact a Plumber
If you think tree roots might be sneaking into your sewer lines, it's best not to handle them alone. Instead, reach out to a professional plumber who can take a look and recommend the proper steps to take. They have the special tools and know-how to easily remove tree roots and fix any damage to your pipes.
6. Heavy Rain? Be Ready
Living in a low-lying area or having an older sewer system means heavy rain can lead to a sewage backup. To be safe, it's wise to prepare a backup plan, like having sandbags or a sump pump handy, to protect your home from any potential flooding.
7. Know Where Your Sewer Line Is
Get to know the location of your main sewer line and any cleanout access points. This knowledge will help you quickly tackle any blockages or issues that crop up. It's similar to knowing where your fire extinguisher is – you may not need it often, but it's a relief to know where to find it when you do!
8. Think About a Backwater Valve
All of your drain pipes converge into a larger pipe called the main sewer line, which connects to the municipal sewer line. When everything works correctly, the waste goes to the municipal sewer, but when the direction reverses, you get a sewage backup. To prevent this, you can install a backwater valve. This handy one-way valve keeps sewage from entering your home. It can be a smart investment if you live in an area prone to these issues. You can look at the inner workings of backwater valves in this video by Flood Ready, a Canadian stormwater management corporation.
9. Be a Good Neighbor
If you see signs of a sewage backup in your neighborhood, like overflowing manholes or strange gurgling in your drains, don't keep it to yourself! Instead, alert your local authorities immediately and tell your neighbors as well. Your actions can help prevent further backups and safeguard your community.
10. Don't Panic, Call the Pros!
If you do face a sewage backup, stay calm! Reach out to a professional restoration company. They will have the skills, tools, and experience needed to handle the cleanup efficiently, disinfect the area, and bring your home back to the way it was before. In summary, they will take care of everything so you can relax.
Protecting Your Home and Health
So, there you have it – you're now armed with the knowledge to keep those nasty sewage backups at bay! Remember that feeling of dread when you imagined a flooded basement full of unsavory surprises? Following these preventative measures will ensure your home is protected. At Restore-It, we're not just experts in cleaning up the mess; we're also passionate about helping you avoid those messy situations in the first place. Contact us today for emergency services, and let us help you keep your home flowing smoothly and smelling fresh!
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