Installing a sump pump requires a professional who has experience installing sump pumps, working with electrical components and drilling through concrete flooring and cinderblock walls. You may want to work with a company or professional that specifically specializes in basement waterproofing or sump pump installations. Check the regulations in your state to see which licenses are required for sump pump installation.  

As you narrow down your options, review the following before hiring a pro:: 

• Confirm their license is active.

• Read their reviews and testimonials.

• Find out if they offer warranties on their work.

• Ask them how long the project will take to complete.

• Request a quote that includes an itemized list of expenses.

For more tips, visit Thumbtack’s Smart Hiring page. 

The national average cost to install a sump pump is around $835,* but prices range from approximately $480 to $1,460,* according to the Thumbtack data.

Replacing an existing sump pump usually costs a bit less. Thumbtack data shows that the national average cost is around $720,* with prices ranging from approximately $410 to $1,260.*

Here are some of the factors that affect costs:

• Sump pump type: You may find that different types of sump pumps — submersible, pedestal, etc. — have different price points. Research prices and consult your pro if you need guidance on which type to get for your home.

• Sump pump size: Typically, bigger pumps that have a higher capacity will cost more than smaller ones.

• Labor costs: Labor costs for a new sump pump installation are typically higher than sump pump replacement. That’s because your pro will likely need an extra day or two to prepare the site and install any needed plumbing and electrical lines.

• Accessibility: If it’s hard to access the sump pump, this can drive up the cost.

*Data on file at Thumbtack. For a personalized cost estimate, request a quote from a professional.

Sump pump installation can be a pricey job, but there are a few ways you might be able to save money in both the short and long term. For example, you can try the following:

• Get multiple quotes from installation pros to compare prices. This can help you find the most cost-effective option and avoid being overcharged.

• Choose an energy-efficient sump pump. The initial installation cost may be a little higher, but if you need to run the pump often, you may be able to save money on energy in the long run. 

• Skip any extras you don’t need. For example, some installers may recommend a battery backup system. If you don’t anticipate running the pump frequently during power outages, you might not need this.

• When obtaining quotes, ask about financing options. Some professionals may accept payments in installments or offer low-interest plans so you can complete this job without a large out-of-pocket expense.

• Check your homeowners insurance policy. For example, find out if you can add water backup coverage to your homeowners insurance policy. Your policy might not cover the cost of replacing a sump pump, but water backup coverage might help you pay for damages caused by a malfunctioning pump. Contact your insurance agency to find out.

A simple sump pump replacement — even for pedestal pumps, alternating systems or systems with a battery backup — typically only takes about three to four hours. Installing a new sump pump system where one doesn’t already exist can take substantially longer — sometimes several days, depending on the complexity of the job.

Sump pump installation is usually a big job, especially if it’s a new installation rather than a replacement. Each job is different, and every professional might have a slightly different process. However, you can generally expect them to: 

• Create a pit: The pump needs to be able to drain water from the lowest point of your home’s basement, so the installer may need to dig a pit by jackhammering out a section of the floor. 

• Place the sump pump in the pit: The pro will likely use gravel to fill in gaps and secure the pump in place. 

• Hook up electrical and plumbing pipes: The pro may need to run electrical lines and drainage pipes for the pump. This often requires drilling through basement walls or even excavating around the home’s foundation to properly install the drains.

• Test the system: The professional will usually test the pump by filling it with water. They should ensure that the float switch is activating the pump and that the pump automatically turns on when the water reaches the appropriate level. The valve should also close when the system is turned off. 

Ask your pro to give you an estimated timeline and step-by-step overview of the process so you know what to expect.

Remember: The timeline for your project will vary depending on many factors. Always ask your pro to provide an estimate.

Mold, mildew and water damage in the basement are some of the most common signs that you have an excess moisture problem and may need a sump pump. However, there are a few other scenarios where it might make sense to install a sump pump.

For example, if you live near a river, waterway or an area that frequently floods, you might want to consider installing a sump pump to rapidly drain your basement in case of a flood. Also, check the water table’s level in your region. In areas with a high water table, it’s common for basements to flood, particularly during rainy seasons.

Not all foundations are as watertight as they should be — and that can cause moisture problems when it rains. While it’s generally better to address malfunctioning gutter systems or make foundation repairs, a sump pump may be a temporary solution while you plan for these bigger projects.

While a highly skilled DIY-er might be able to install a sump pump by themselves, this is typically a job best left to the professionals.

Improper installation might lead to a variety of problems ranging from a malfunctioning pump to water damage and flooding in your home. If a sump pump is not installed correctly, this may also cause your manufacturer warranty to be voided (depending on its conditions). 

Here are few reasons to consider hiring a professional:

• Sump pump installation typically requires both plumbing and electrical experience. In some areas, regulations may require this job to be completed by someone who is licensed to do both plumbing and electrical work. 

• You might also need to get a permit from your local building authority, which a professional can usually help with. 

• Don’t forget about the tools and materials. In many cases, you’ll need to use a drill, pliers, valves, a hacksaw, gravel, concrete/cement and more. If you don’t have everything you’ll need, you may want to skip DIY.

• Professionals are trained to anticipate various complexities. For example, if the new pump draws a higher electrical load or pumps a higher volume of water, they may need to install new wiring or drain systems to support the new pump. 

• Some professionals offer warranties on their work that cover mistakes and damage, depending on the conditions.