6 Best Sump Pump for Crawl Space | Reviews 2021

Do you live in an area where there are constant storms and frequent rainfall? Does the crawl space of your home tend to get flooded, destroying valuable possessions in that process? If the answers to the questions are yes, then you have come to just the right place.

We have written this article especially for you to find the best sump pump for crawl space. While finding that out, you will also get an overview of the benefits of a sump pump, along with a buying guide and step-by-step installation instruction to provide you with all the help you need.

Zoeller M53 Sump Pump  for crawl space

Benefits of Crawl Space Sump Pump

If you’re still not convinced regarding why sump pumps will benefit you, we have made a list of the top 3 benefits of having a sump pump in your home –

Prevents Flooding

If you live in a climate where frequent rainfall and storms occur, then you are probably not unfamiliar with the incidence of having your basement flooded. This may happen in any climate in the case of a sudden storm. A sump pump will help you prevent such incidences.

As the sump pump will drain away all the water trying to pool in your basement, your house will remain untouched and dry. Besides, it will prevent valuable objects from getting destroyed, and your home structure from being ruined.

Gets Rid of Mold

If your basement is frequently flooded with water, no matter how fast you try to dry it, mold will begin to accumulate over time. This is a source of potential harm for both you and your home. Getting rid of mold can also be a lengthy and energy-consuming process.

Therefore, it is better to stop the problem at the roots. By installing a sump pump, you will no longer have to worry about flood water, and consequently, mold.

Ensures Safety

Water and electric lines are never a good combination. When floodwater enters your basement, any electric lines there will be sabotaged and might result in a fire. The fire can be potentially life-threatening. Just the simple case of installing a sump pump can get you rid of all these problems.

6 Best Sump Pump for Crawl Space

To get you started, we have made a list of the top 6 sump pumps you can install in your crawl space. All the pros and cons of the models are given so you can make the best decision for yourself.

1. Zoeller 105-0001 Sump Pump

We are going to dive right into the reviews with a proven favorite brand – Zoeller. This model from Zoeller is sure to meet all the expectations that you might have from a sump pump. It is known to have a better quality than all other sump pump packages out there.

As it is made from cast iron, it scores quite high in terms of strength. This means it will operate without any hassle for long years while looking as ifit is in its prime condition. The noise-free operation of the process is an added benefit, and will not end up ruining your sleep.

Clogging is a serious issue faced by a lot of sump pump owners, as when the pump tries to get rid of the water, debris gets jammed into it. But not with this model, no. As this model is equipped with a vortex impeller, it can very easily discharge all sorts of debris, preventing any clogging issues from arising.

Another great thing about this model is that it comes with a lot of additional components, almost like a full kit. Besides, it does not require any extra manpower to be installed. The whole process takes only a few minutes, so it is not time-consuming.


  • Construction is done with high-quality cast-iron material
  • Vortex impeller prevents clogging
  • Does not make any noise
  • Comes included with additional equipment
  • Provides better quality than other packaged systems
  • Very easy to set up


  • Quite heavy

2. Liberty Pumps CSP-237 Pump

Another favorite on our list is the Liberty CSP 237 pump, as its performance is said to exceed all expectations by users. What is really great about this model is its outstanding flow rate – it can get rid of 51 gallons of water from your basement in a minute.

The motor with ½ horsepower makes this model a powerful one. Unlike other powerful models, it does not make much noise. This makes it an ideal option for most people. Besides, its installation process is quite easy, adding to its list of benefits.

We really like the fact that it can get rid of most large solid debris without being clogged. The discharge unit can get rid of solids up to 1 ½ inch.So, unless a particle is larger than this, it will not get stuck in the system.

As it is made of high-quality aluminum, the model is quite strong and durable, which increases its longevity. The best thing about this product is that it comes with all additional equipment, even a power cord. Most models do not offer this benefit.


  • Equipped with a motor of½ horsepower
  • Can get rid of 51 gallons of water per minute
  • Constructed of high-quality aluminum material to add to the strength
  • Can discharge solids measuring up to 1 ½ inch
  • Includes additional equipment, even a quick-disconnect power cord
  • Operates quite silently
  • Can be installed with ease


  • The product is not assembled

3. Little Giant CS-SS Crawl Space Sump System

Just as the name suggests, the Little Giant sump pump might be little in size, but it takes off a giant load of your worries. Unlike other models, this one responds almost immediately to water accumulation, so it will start pumping out water before any real danger arises.

When it comes to strength, this device performs quite well as it has a body made from cast iron. Besides, the iron is coated in epoxy resin, which prevents any corrosion from forming. This combination of iron and resin definitely ensures that this product lives a long life.

With a 1/3 horsepower motor, the model gets rid of water efficiently and effectively, protecting your house from flooding or gathering mold. While getting rid of the water, it also disposes of any liquid or solid debris with a maximum ½ inch diameter.

Like the best models out there, this product also does not make any sound, which is definitely a plus point. Along with these, the Little Giant comes with a manual that describes how to install it in detailed steps. This makes it easy for even a noob to get the installation done without any outside help.


  • Equipped with a 1/3 HP motor
  • Responds immediately to water accumulation
  • Cast iron body maximizes durability and strength
  • Coated with epoxy resin to ensure corrosion resistance
  • Does not make much sound
  • Can get rid of waste material up to ½ inch diameter
  • Comes with instructions about the installation process


  • Might lead to oil leaks

4. Zoeller Crawl Space Sump Pump with Kit

Here we have yet another model from Zoeller. The difference here is that this is a sump pump kit, which means it comes accompanied byall the additional tools you will need to get started.

The quality of the material of a product plays a huge role in its efficiency.Like always, Zoeller does not compromise with the quality here. Made from cast iron, this model definitely lives up to its claims.

Getting a heavy cumbersome sump pump can lead to problems when you need to move it around. With this kit, you do not have to face that problem, as the model is very compact and lightweight.

The product can be used in dishwashers, washing machines, low ground, as well as the basement to drain water. Itsinstallation process is easy and well documented, so you do not have to face any hassle regarding that.


  • The high-quality material ensures a long lifespan
  • The compact size makes it an easy fit in basements
  • Pumps out water effectively wherever it is placed
  • Includes all the things you will need to get started
  • Easy installation process


  • Not the best quality

5. Zoeller M53 Mighty-Mate Sump Pump

Next on our list is the Zoeller M53 Mighty Mate sump pump. This model is quite popular among the users, as it generally ticks all the boxes that people look for. The motor, equipped with 1/3 horsepower, makes it a perfect choice to get all the water out of abasement.

What makes this model stand out is the materials it is made from. Aside from a cast-iron structure that adds to the strength and durability of the model, this product has an epoxy resin coating. The coating is beneficial in the sense that it prevents corrosion and mildew from forming.

Another thing we love about this model is that is very compact, and thus can be fitted easily in your basement. The installation process is also super easy. It does not take more than 30 minutes to be completed. On top of that, it makes no extra noise at all, thus saving you from a constant humming sound.

A lot of pumps get clogged over time due to the accumulation of debris. But this Zoeller model comes with a vortex impeller that makes it easy to get rid of all solid debris without any hassle. All these features make it a great buy for any kind of basement.


  • 1/3 horsepower motor makes it quite powerful
  • Does not make unnecessary noise
  • The compact size makes it easy to be fitted
  • Cast iron structure with epoxy resin coating helps to prevent corrosion
  • Thermoplastic design in the base adds to its life span
  • Great at pumping out debris
  • Works with almost all sump pump alarms
  • Simple and easy installation process


  • Flood areas might need a more powerful design

6. WAYNE  3/4 HP Sump Pump

Last but not the least, we have a sump pump from Wayne. The brand itself is renowned for its well-engineered designs. This model is of no exception either. Its body ofhigh-quality stainless steel andits useful features make it a convenient choice.

The model operates on a ¾ HP powered motor, and despite this hasa noise-free operation. This means you do not have to worry about both the sound and the water in your basement.

In terms of efficiency, this model can get rid of a whopping 4600 gallons per hour, which is definitely higher than the normal benchmark. In addition to that, this product does not get clogged at all, thanks to the integrated top suction pump.

A lot of sump pumps have a hard installation process, and usually require a professional’s help. But this model has a straightforward process and can be installed without any assistance. Besides, it takes only 15 minutes tops, so it is time-efficient as well.


  • Stainless steel makes it resistant to water, tear, and wear
  • ¾ HP motor makes it a good choice
  • Runs a very quiet operation
  • Has an exceptional GPH rating of 4600 GPH
  • The top suction pump ensures an efficient discharge of debris
  • The installation process is simple and straight forward


  • Might be too heavy to carry

How to Pick the Perfect Sump Pump for Crawl Space

The market has a lot of sump pumps available. In order to find the best sump pump for crawl space, you need to look at the following factors;


There are two types of sump pumps in general – a pedestal pump and a submersible sump pump. With the submersible sump pump, you need to dig a hole in the basement to get it installed. However, these are usually noise-free and get water drained whenever it reaches a specified level.

A pedestal sump pump can be installed above the ground. It performs the same function as a submersible pump, butit makes a lot more noise.


One important thing to consider while buying a sump pump is the power you might be needing. If you need protection from rainwater frequently, you should consider getting a model with a powerful engine.

That means if you live in an area where you face storms and floods constantly, gambling with a relatively weak sump pump might not be the best choice.

Flow Rate

Another very important thing to consider is the flow rate. It can be specified as gallons per minute or gallons per hour. What this means is how much water a sump pump can drain in a minute or an hour. It is a major indicator of efficiency.

While it is common to think that the higher the flow rate is, the better the model will be, that is not necessarily the case. Some areas observe very few cases of excess accumulation of water, and thus having a machine with a higher flow rate just adds to the cost and electricity bills.

Besides, they are prone to get burnt out more easily.


Make sure that the pump fits well into your pit. To do that, get all the relevant measurements before you start looking. The crawl space is usually very cramped, so if you get one size too big, you might have a hard time getting it fitted.


To find out if your pump is durable enough to bear the burn of all the hard work in the coming years, take a look at the materials it is made of. Generally, sump pumps can be made with plastic, cast iron, or stainless steel.

Among these, plastic models are the most cost-efficient but also scores the least in terms of durability. Cast iron is the most durable, but the problem is that it is a heavy material.

Besides, cast iron is prone to corrosion and rust, making it incapable of staying in a good condition while working with water. But if cast iron is coated in epoxy resin, the issue of corrosion goes away.

Stainless steel is lighter than both of these materials and offers resistance to corrosion. Besides, it gives a sophisticated look and can last for much longer than either plastic or cast iron. Therefore, looking for models made of stainless steel or epoxy resin-coated cast iron might be agood choice here.

Switching System

Another thing you need to look at is the switching system of the model. Two types of switching systems can be found in most sump pumps – one is automatic and the other is manual.

With the automatic switch, there is a floater that starts the motor as soon as it is pushed by the water ata specificlevel. This switching system helps homeowners stay worry-free, as they do not need to turn the switch on every time there is a storm.

And with a manual switch, you need to manually turn the switch on and off through a toggle switch. This system is more energy-efficient than an automatic switching system.

Which type of switch will be the right choice for you depends on the kind of climate you live in. If you face frequent heavy rainfall, then it is best to get an automated switch as it will not require you to turn the switch on every time. Other times, a manual switch helps save a lot of energy and cost.

Installing Guide for Crawl Space

To install a sump pump in a crawl space, go through the following steps –

Choose a Spot

Instead of choosing an arbitrary spot, find where the water starts pooling the fastest and choose that spot to install the pump.

Get Digging

Usually, crawl spaces are smaller than basements.So, take great care while digging to not end up hurting yourself.

Install the Basin

Install a basin thatfits nicely into the pit you have dug. Try to incorporate a liner in the basin to get rid of any waste. Some basins also come with lids that get the job done.

Install the Pump

While keeping the pump straight, start installing it. Most sump pumps come with detailed information regarding theirinstallation process. Try following it step by step.

Get Some Drainage Lines

Drainage lines are required to get any debris out that might otherwise clog your system. Install these too.

Start Testing

Test the new system by adding some water to the basin. Make sure beforehand that all the power lines are well away from the basin.

Frequently Asked Questions

What size sump pump do I need for my crawl space?

There is no pre-specified size for a crawl space sump pump. What size you need depends on the size of the crawl space. Since different houses have different-sized basements and crawl spaces, you will be better off taking the measurements of where you want to install the pump.

Who needs a crawl space pump?

As a crawl space sump pump can help in getting rid of floodwater accumulating in your basement, any person living in a climate that has a lot of rainfall and storms occurring needs a crawl space pump. Of course, you must have a crawl space to install it in too.

How much does it cost to install a sump pump in a crawl space?

The installation cost of asump pump depends on the kind of model you are installing. Besides, if you require the help of a professional, your costs will rise. Most crawl space sump pumps come with detailed installation guides.So, consider doing it yourself and save some cost.

How much does it cost to seal a crawl space?

Again, this depends on the size of the space. But usually, crawl space encapsulation costs can range from $1500 to $15000. You can look around for services around your area that meet your budget for this case.

Is a sump pump necessary in a crawl space?

If you have read our article so far, you will understand that a sump pump is absolutely crucial for your crawl space. It will have various benefits you will get for a lifetime – like the prevention of flooding, no nasty mold in the house, and the safety of your home.

Do you need a plumber to install a sump pump?

Usually, sump pumps come with detailed manuals. The equipment needed for installation is not too expensive either. Therefore, you can get the process done without any external help. However, if you feel that it is not your cup of tea, getting the help of a plumber can be done.

Final Words

Now that you have read this article about the best sump pump for crawl space, we hope you have got all the information you need to make a decision. The products listed here are all consumer favorites. Also, the Zoeller models are known for their well-engineered designs.

The Liberty Pumps model does a good job of getting all debris out, even the larger-sized ones. But our favorite would have to be the WAYNE 3/4 HP sump pump, due to its stainless-steel body and flow rate of 4600 GPH.

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About the Author James Williams

Hi, This is James from HomerDIY. I have great experience in writing about everything related to Pump and DIY tools. For the last few years, I am researching the different types of tools and sharing my opinion on this blog.

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