DIY Plumbing Help

How to Replace a Sump Pump: A Homeowner’s Step-by-Step Guide

Written by Mark Crumpler | Aug 25, 2025 11:15:00 AM

A failing sump pump isn’t something most homeowners in Central Ohio think about—until they need it most. But whether you're dealing with a damp basement or preparing for the next storm, knowing how to replace a sump pump is key to protecting your home’s foundation and avoiding costly water damage.

This guide walks you through more than just sump pump maintenance and will show you what to expect, what’s involved in the replacement process, and how to prepare for installation—whether you're planning to DIY or bring in a professional.

When It's Time to Replace Your Sump Pump

The average sump pump lasts between 7 and 10 years, depending on how often it runs and whether it’s properly maintained. You might start noticing signs like unusual noises, excessive vibration, or the pump running longer than it used to. In some cases, water may not be fully removed from the pit, or the system might fail altogether during a heavy rain.

A Powell homeowner recently told us they’d been ignoring their sump pump’s clicking noise for months. When a spring storm rolled in, the system failed completely, flooding their finished basement. A replacement could have prevented thousands in damage. If your sump pump is showing signs of failure—especially in a flood-prone area—don’t wait.

Preparing for Sump Pump Installation

Before installation begins, it’s important to assess your existing setup. Do you have a submersible or pedestal pump? Is the basin still in good shape? Are your discharge lines clear and functioning? Answering these questions will help determine the scope of your replacement.

If you’re hiring a professional like Crawford Mechanical Services, your technician will inspect these components and recommend any necessary upgrades, such as a battery backup system or a check valve replacement. Most installations take 2–4 hours, depending on access, materials, and whether old plumbing needs updating.

Homeowners should also consider whether they want to install the same model or upgrade. Submersible sump pumps are quieter and more powerful but cost more than pedestal versions. If you're planning to finish your basement, the quieter and more durable submersible is typically the better choice.

What the Installation Process Looks Like

Installation begins with turning off power to the existing system and removing the old pump. Once the pit is cleaned out and free of debris, the new pump is placed, connected to the discharge pipe, and fitted with a new check valve. The pump is then wired or plugged in, and the system is tested with several buckets of water to ensure it cycles correctly.

In some cases, adjustments may be needed to the float switch or discharge piping. It’s important that the float isn’t obstructed and that water is exiting your home efficiently. A trusted plumber will also test for backflow prevention and inspect surrounding areas for mold or water damage.

Choosing the Right Sump Pump for Your Home

Selecting the right sump pump depends on your home’s needs and risk level. Submersible models are best for finished basements or high-water tables. Pedestal models are cheaper and easier to maintain but may not be as effective during heavy storms. Other features to consider include:

  • Backup Power Systems: If your home experiences frequent outages, a battery-powered backup sump pump ensures your system continues operating even if the power goes out.

  • Alarm Alerts: Some newer models include water level alarms or Wi-Fi-connected alerts so you can be notified remotely if the system fails or water is rising.

Tips for Homeowners Before and After Installation

To ensure the sump pump replacement process is as seamless and efficient as possible, it is essential to take several preparatory steps that will help safeguard your investment and facilitate a successful installation. By following these guidelines, you can minimize potential disruptions and ensure that your new system operates optimally from the start. Here are some detailed tips to help you prepare for the replacement and protect your investment:

  • Clear the Area Around the Pit: Make sure access to the sump pump is clear. Remove stored items, shelving, or carpeting nearby. This allows the plumber to work efficiently and avoids potential damage to your belongings.
  • Schedule Annual Maintenance: After installation, set reminders for annual sump pump system checks. Cleaning the sump pump pit, testing the float switch, and flushing the system keeps it running optimally. This also helps identify small problems before they become emergencies.
Ensuring your sump pump is in optimal condition is crucial for safeguarding your home against water damage. By understanding the signs of a failing system and knowing when to replace it, you can prevent costly repairs and maintain the integrity of your property. Whether you choose to tackle the installation yourself or enlist the expertise of professionals like Crawford Mechanical Services, taking proactive steps will provide long-term protection and peace of mind. Remember, a well-maintained sump pump is your first line of defense against basement flooding and water-related issues.

When to Call a Professional for Sump Pump Replacement

If you're unsure how to replace a sump pump or don’t have experience with electrical and plumbing systems, it’s best to work with a licensed plumber. Improper installation can lead to flooding, failed warranties, or damage to your electrical system.

Crawford Mechanical Services has decades of experience with sump pump replacement and installation throughout Central Ohio, including Columbus, Grove City, and Westerville.

Our trained technicians inspect your current setup, recommend the right system, and ensure everything is installed to code—providing peace of mind when you need it most.