Cost to Install a Backup Sump Pump – 2021

| Last Updated: August 24, 2021

National Average Improvement and Repair Cost







$ 608

$ 360

Would you do this project? According to our survey, 24% of respondents preferred DIY compared to hiring a pro.

The average price to Install a Backup Sump Pump noted above is cost data to compare a contractor’s estimate with doing it yourself.

How much is a backup sump pump? A plumber charges $608 to replace a backup sump pump vs. doing it yourself for $360 and saving 41 percent.

Anyone who has survived a flooded basement because of a power failure knows it’s a good idea to have a backup sump pump that operates on batteries and does not rely on the local electric utility company for power like an existing pedestal or submersible pump.

A backup pump uses a 12-volt battery kept at full capacity by a charger that’s plugged into a wall outlet and alerts you when and if your primary pump stops working.

A plumber will charge $608 to install a backup battery-operated sump pump which includes labor and material. If you have experience with plumbing and electrical projects, you can buy the pump for $360 and install it yourself and save 41 percent. This is not trivial and involves several steps, so if there’s any hesitation, don’t do it yourself and hire a pro.

The job involves cutting into the plumbing line of the primary pump, and cutting and gluing new PVC pipe, and then making the electrical connections between the primary pump and the backup pump and its charger. It’s definitely a job for a plumbing contractor if the primary pump has a steel pipe, which requires the tools and skills of working with steel piping.

Whoever does the job, you’ll sleep better having a backup pump the first night of a torrential rainstorm.

Make a habit of checking a sump pump every three months to see that it’s working and remove any dirt or debris that may have collected in the bottom of it. This is particularly important to do in the spring and fall when the rainfall is at its heaviest.

Watch a video from The Basement Watchdog Installing a Backup Sump Pump.

That sums it up. Knowing the average cost to install a backup sump pump lets you compare doing it yourself with what you can expect to pay a contractor.

See more for your home plumbing maintenance:

Welcome! We hope you’ll find the job costs of home improvement projects useful when you’re deciding whether to do a job yourself vs. hire a contractor. We’re the authors of 20 home improvement books, most notably Home Improvement for Dummies©, Bathroom Remodeling for Dummies©, Carpentry for Dummies©, Plumbing for Dummies©, and Painting and Wallpapering for Dummies©. Our most recent book Fix It and Flip It is in its second edition. We’ve appeared as home improvement experts on television programs such as CNN, Dateline, the Today Show, HGTV and many others.