
Discover how much sump pump installation costs, including average prices, key cost factors, and tips to save on your basement waterproofing project.
Basement waterproofing costs depend on your project and location. Check with a local pro for your specific job.
Sump pump battery backup installation costs $600 to $1,200 when you hire a professional for your basement waterproofing project.
Battery type and pumping capacity are the primary factors that determine your total, with deep-cycle batteries costing more than standard designs.
Account for the cost of additional parts like discharge pipes and check valves when you create your budget for this project.
Hiring a local sump pump installation professional prevents basement flooding and keeps your home safe from water damage and mold growth.
The average cost of a sump pump backup battery comes out to $900. However, the price can range from as little as $300 to as much as $1,800, depending on the type of backup system you select. A battery backup system is highly beneficial for people with homes in areas that have frequent power outages, as it will power your sump pump, even if your electricity fails. Dive into the different types of battery systems and cost factors to back up your battery budget as well as your sump pump.
The cost of a backup battery for your sump pump may seem expensive, but you can budget for it by figuring out the type of battery, pumping capacity, package features, material type, and the labor costs needed to install it.
There are a few different types of batteries to choose from when purchasing a sump pump battery backup. AGM, or absorbent glass mat, batteries come in standard or deep-cycle designs.
| Battery Type | Average Cost | Average Life Span |
|---|---|---|
| Standard design | $100–$200 | 3–5 years |
| Deep-cycle design | $200–$400 | 10+ years |
A standard lead-acid battery is often less expensive and offers a high amount of electricity. However, they don’t last as long as deep-cycle batteries. The more expensive deep-cycle or marine batteries have a longer run time which is great during long power outages. With proper maintenance, these batteries can last for 10 or more years.

Depending on your home’s requirements, you’ll need to choose between a high-capacity or low-capacity backup.
| Pumping Capacity | Average Cost | Gallons Pumped per Hour |
|---|---|---|
| Low capacity | $200–$400 | 1,000 |
| High capacity | $400+ | 2,200 |
A low-capacity backup is more cost-efficient, however, it can only pump up to 1,000 gallons per hour. A high-capacity backup is more costly but offers a higher pumping capacity, which means it’s faster at removing water from the area.
Depending on the sump pump backup system you buy, there may be some additional parts you’ll still need to purchase. Some systems do not include the battery, which can cost between $120 to $200 when purchased separately. The initial package doesn’t usually include a discharge pipe or a check valve either, which can cost between $10 to $40.
| System Part | Average Cost |
|---|---|
| Battery | $120–$200 |
| Discharge pipe | $10–$50 |
| Check valve | $10–$40 |
A battery backup for your sump pump can be made from cast iron, stainless steel, or plastic. The more durable materials often have a higher price point, but they can withstand more severe conditions and have a longer life span.
| Cast Iron | Stainless Steel | Plastic |
|---|---|---|
| $100–$2,600 | $200–$600 | $50–$500 |
| Long life span | Medium life span | Short life span |
| High durability | Medium durability | Low durability |
A cast-iron backup system is the most durable and can outlast severe weather conditions. A stainless steel system is also highly durable and corrosion-resistant. A plastic system has the lowest cost, the shortest life span, and less durability.
When hiring a local sump pump pro to install your system, expect to pay between $45 to $200 an hour. Due to the complexity of a battery backup sump pump system, it can often cost more to install than a system without a battery backup.
The total cost often ranges from $640 to $2,000, with the average coming out to $1,220.

It’s important to keep up with annual maintenance for your sump pump to ensure everything is working correctly. Technicians will inspect the parts to make sure they’re working, unplug and clean the unit, and test the unit as a whole.
If they find any issues with your sump pump, you can expect to pay:
$250 for the maintenance checkup
$500 on average for repairs
Between $310 to $750 to replace a sump pump if it needs major repairs
Installing a sump pump with a backup battery is complicated and, for most homeowners, is a task best left to a local sump pump installation pro.
For most homeowners, a sump pump installation is too complex. Systems with backup batteries are even more complicated to install. Despite the hourly rate of a sump pump installer (between $45 and $200 an hour), it makes sense for most homeowners to call in a pro. Here’s why:
Sump pump installation involves both plumbing and electrical work, which are specialized skills.
Working with electrical systems can be dangerous if you don’t know what you’re doing.
Incorrect installation can lead to basement flooding, water damage, and mold growth.
If the sump pump with backup battery comes with a warranty, it may require professional installation.
Professionals carry liability insurance: If they make a costly mistake, you’re covered, but if you make a costly mistake, that’s on you.
Sump pumps are often subject to building codes; a sump pump pro knows these codes like the back of their hand and can ensure compliance.
If you’re handy around the house and have prior experience working with sump pumps, you may be able to install the system yourself. Just make sure you:
Verify that a DIY install won’t void the warranty.
Have all the correct tools to handle the install yourself.
Set aside at least a day for the install.
Ask your contractor if your city requires a permit for sump pump installation, and make sure they’ll obtain it for you (and that the cost is already reflected in your quote).
Talk to your contractor about your budget so they can recommend the right brand, type of battery, and pumping capacity that you can afford, but also works for your home.
Have the contractor walk you through routine maintenance tasks for your sump pump so you can keep it in proper working order.
Home is the most important place on earth, which is why Angi has helped more than 150 million homeowners transform their houses into homes they adore. To help homeowners with their next project, Angi provides readers with the most accurate cost data and upholds strict editorial standards. We extensively research project costs to develop the pricing data you see, so you can make the best decisions for you and your home. We rely on reputable sources, including the U.S. Bureau of Labor Statistics, academic journals, market studies, and interviews with industry experts—all to ensure our prices reflect real-world projects.
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Finished Basements Plus was wonderful from beginning to end! First, they came out quickly for an estimate. I had 4 estimates and theirs was by far the best. (2 of the estimates were more than $20K higher than for the exact same work). Beyond their fair pricing, the work was excellent. They...
Amazing job. Efficient and quick without compromising quality. Basement feels brand new. Would use them again in a heartbeat.
Window Depot did an amazing job installing the windows in my basement! The process from start to finish was by far more than what I expected. I would highly recommend Window Depot if you want professionalism from the the consultation to the installation. Dont settle for mediocre when you can...
They cleaned my very dirty basement. They were prompts, quick, thorough and their price was fair.
I am very pleased with the services performed by OTS. Bless my late Mother, but she was a bit of a pack-rat. The basement of her home was crammed with 40+ years of "stuff," and the other companies I contacted were concerned with possible mold contamination of the items due to the musty smell...
The company was very easy to work with. My family is now able to enjoy a space that at one point, only collected junk!!!! I feel like i have a whole new addition to the house!!! Wonderful work Blurock on our basement, will recommend!
Excellent work. Opted for the service contract which provides spring and fall checkups and deduction on maintenance charges which seems to be a good value. Initial dehumidifier for our large basement was undersized. They replaced unit after it failed with a larger unit and charged only for...
We had water in our basement and Roto Rooter was original contact to evaluate the situation. We were informed that our sewer main was fractured and needed repair. We received their estimate and then looked for counter offers. Ohio Basement Authority came with the best quote for the work. Once...
Called Mark on a Thursday morning. Not really knowing if he could help me or not. I was having driveway, flooding issues due to a clogged channel drain and I was trying to figure out what direction to take. Heavy rains had come on Monday and again on Thursday leading to flooding in my garage...
The crumbling basement wall needing repair is beneath a large 2 story porch. What i thought would be a complicated project was made very easy by this crew. I was very impressed with the speed and quality of the work performed. The job was finished in just a week as estimated. There were...
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