Best Commercial Pressure Washer in 2021

Our Take

The Simpson Cleaning ALH3425 utilizes a powerful Honda engine and industrial triplex pump to provide up to a maximum of 3600 PSI. Its frame is made from heavy-duty aircraft-grade aluminum that provides a sturdy and stable base.

The spray lance is ergonomically designed to provide a comfortable grip whilst in use. It comes with 5 quick connect nozzle tips that cover 4 different spray angles plus a soap option. The 35-foot hose is more than enough reach for most jobs, plus its pneumatic tires make it easy to move around the job site.

It is very simple to set up the machine, requiring only to slide the handle into place and secure then connect the hose to the lance and pump. Once the included motor oil is added and the gas topped up you are ready to go. Make sure to use ethanol-free gas as recommended, otherwise, you can expect the carburetor in the engine to fail within a year.

Our Take

We wanted to make sure to include a couple of electric commercial grade pressure washers in our review and the Karcher K5 Premium definitely stood out. This really is a top of the line pressure washer, even including an LCD display to show the pressure levels and easily adjust on the go directly from the handle. This works by connecting to the motor via radio frequency and adjusting the power accordingly.

Unlike most of the other pressure washers, we reviewed the Karcher K5 has only one spray wand and no additional nozzles. However, it can still be set to three different settings be simply twisting the wand. Select from a flat spray, rotary spray for those tricky corners, or the detergent setting.

When it comes to detergents this is where the Karcher K5 really stands out. Just place the soap bottle into the dedicated slot, select the detergent setting on the wand and you are ready to go. Once you have finished your wash you can remove the soap container and leave it safely on a shelf without having to worry about emptying the detergent tank after each operation.

With a maximum PSI of only 2000, this has one of the lowest water pressures in our reviews. But for yard cleanups, washing down trucks and general use it is great and there isn’t a more powerful electric pressure washer. It is lightweight, manufactured to a high specification and the Karcher brand Is globally recognized for its products. Don’t forget about all of the fantastic accessories that come with it, including a dedicated deck and driveway cleaner or a rotating wash brush, perfect for car washing.

Our Take

The Simpson ALH4240 Aluminum Gas Pressure Washer is built for the dirtiest of projects, easily cutting through grease and grime it is for those looking for serious cleaning power.

This model comes with a Honda GX390 engine with oil alert, making it powerful, reliable, and easy to fill. It also features a 3/8 inch x 50 ft. ‘monster’ hose. The hose is non-marring, kink and abrasian resistant, and equipped with quick connect for simple use. Included in this are 4 quick connect nozzel tips at 0, 15, 25, and 40 degrees. 

The frame is made from aircraft grade aluminum. This means it is extremely durable, and will take any amount of use you throw at it. 13 inch premium pneumatic tires make this pressure washer easy to maneuver across a variety of terrain. 

It boasts 4200 PSI,  and 4.0 GPM, making it best for heavy commercial use, and thus ideal if you want a lot of cleaning power. 

With over 60 years of industry-leading experience and technology, this Simpson pressure washer is sure to get the job done. This is a great all-round product at a decent price-point for a  powerful commercial power washer. 

Our Take

The WEN 3100 Pressure Washer is an impressive machine. With a powerful 208cc 4 stroke engine that turns its axial pump to supply water at 3100 PSI. It is important to note that this commercial pressure washer has an excellent flow rate as well.

Flow rate is measured in GPM, gallons per minute. The flow rate of the WEN PW3100 is up to 2.5 GPM which gives a large enough level of flow to wash even the most stubborn of dirt away.

It includes five quick-connect nozzles including a soap nozzle. The soap nozzle works seamlessly with the integrated soap tank to help with your cleaning activity. Just fill-up the 32-fluid ounce soap tank with your preferred detergent and it will help cut through dirt and debris.

The nozzles connect onto a lance that has a quick-release collar at the end. The lance, or wand, is as comfortable to work with as any others. It has a nice and sturdy hand grip. This is attached to the reinforced 30-foot hose, providing excellent reach around your work site.

To assist with mobility and movement across various terrain it is built on a sturdy frame and rolls on two 12-inch wheels. The benefit of large solid wheels is you can pull it across the yard without the worry that it may puncture or corrode compare to pneumatic wheels.  

At this price point and with its included 2-year warrant it is a truly excellent pressure washer, especially when you take into account its maximum pressure and flow rate.

Our Take

One of only two electric commercial pressure washers on our list, the Sun Joe SPX94000-PRO is a good all-round cold-water pressure washer. It comes equipped with a high-performance brushless induction motor that generates up to 2030 PSI for maximum cleaning power.

Unfortunately, it isn’t fitted with pneumatic tires although its large all-terrain wheels are more than strong enough. Not having pneumatic tires may be a benefit in the long run as you don’t have to worry about the chance of punctures.  

The Sun Joe comes with a quick connect turbo head spray nozzle which cleans 40 percent faster than a standard nozzle. Additionally, the detergent tank is a decent 54.1 fl oz which lets you put in just the right amount of detergent to give your cleaning a boost. 

Not only can you swap out different nozzles, as standard with most commercial pressure washers, it also allows you to set the required water pressure with Pressure Select technology. Use a lower pressure setting for small jobs that you need to be careful of the surrounding area or crank it up to full power for larger areas.

With the maximum PSI of 2030 this is a good, well-priced competitor in the commercial pressure washer space. We like this model because it is electrically powered in a mainly gas-powered market. 

Our Take

If you are looking for something with a. bit more punch then the Generac 6565 is the commercial pressure washer for you. Utilizing a professional-grade triplex pump, know to outperform axial cam pumps by up to 4 times longer life span and a huge 420cc engine to maximize pressure output. Talking of output the Generac 6565 provides up to a maximum water pressure of 4200 PSI at a whooping 4 GPM, gallons per minute.

This truly is a professional grade machine that is ready to take on almost any commercial job. Another one of its highlights is its 50 foot nonmarking rubber hose. Not only is this the joint longest hose on the machines we reviewed it is also made to not damage or mark the areas you have already cleaned.

Oversized 12 inch pneumatic tires make it a breeze to maneuver this around, even if it is on the heavier side compared to some of the other pressure washers we have reviewed. However, with the extra weight, you are provided with a more powerful engine and higher quality pump.

As standard, it comes with a lance and 5 quick-release nozzles that are all stored on the machine. It’s well thought out and compact design make it a pleasure to use. Mixed with the quality of materials Generac uses and its high performance you really can’t go wrong with this for your commercial pressure washer.

Our Take

Briggs & Stratton is a well-known and highly trusted brand by millions of people around the world and the 020770 pressure washer doesn’t disappoint.

When it comes to the engine it comes equipped with a powerful Briggs and Stratton Engine. Briggs & Stratton are well-known for being one of the worlds leading small engine producers, using their own engines in their products helps them stand out from the competition. It is a top of the line engine, including the specialist Just Check & Add technology which they claim means you’ll never change the oil for the life of the engine. It also features a maintenance-free azium cam pump with EasyStart technology, making this model slick and convenient. 

Its PowerFlow Technology Dual Mode Cleaning means you can use high pressure or high flow depending on the job at hand. High pressure goes up to maximum 2800 PSI at 1.8 GPM, a decent range for most uses. High flow goes up to a maximum 150 PSI at 3.5 GPM. 

This model also features a nifty 7 in 1 nozzle which saves time by adjusting pressure settings and applying soap at the twist of a wrist. This is a great feature for those of us in a rush, or who need a number of different pressures and flow types in one pressure washing session. 

Easy start-up by following the included instructions. As soon as we had it off the pallet it arrived on and topped it up with fuel it was pretty much ready to go. Make sure to keep a firm grip on the lance as it really packs a punch when turned up to full power!    

Our Take

Pressure Pro specializes in their pressure washer machine range. The E4040HA built by Pressure Pro is a heavy-duty professional pressure washer that is built to last and put up with all the needs of a commercial task.

Built with a professional triplex plunger pump that is pressure adjustable for any job. The pump uses ceramic components to run cooler and last longer. It is also made to be easy to maintain and rebuild for cleaning.

A 13 horsepower Honda GX390 engine powers the triplex pump, providing a reliable and smooth operating power source. The included thermo sense and low oil shutdown protect the engine and pump and increase its life span.

It is worth noting a few of its stand out features. This includes a 50 mesh inlet filter to stop debris before it enters the pump, potentially causing damage. A siphon tube assists in adding detergent to the flow when using the soap nozzle. The 4 other included quick-connect nozzles come in a range of angles to direct the water flow as needed and under the correct pressure.

With a maximum of 4000 PSI at 4.0 GPM you will have no limit to the power provided and easily remove even the toughest stains. 3 feet of wand plus a 50 foot non-marking hose make this pressure washer as maneuverable as the some of the best we have reviewed. Its frame is made from aircraft-grade aluminum which means it will never rust or corrode. Plus, it even comes with an oil pump for the engine before you start the pressure washer up! As we always try to remind our readers, don’t forget to hold on tight with both hands as 4000 PSI is a lot of pressure.

Our Take

Another excellent commercial pressure washer from Simpson Cleaning is the MSH3125 MegaShot pressure washer, it is a great alternative to the ALH3425 for those not needing quite as much power.

The MSH3125 has a lot of similarities to the ALH3425. Both have 5 quick connect nozzle tips with a range of angles that store neatly on the front of the machine, within reaching distance of the handle. They also both have 10-inch pneumatic tires, making maneuvering across undulating surfaces no issue.

The engine is where they start to differ, the MSH3125 comes installed with the Honda GC190. This is a powerful motor that supplies water at a pressure of up to 3100 PSI. It uses an axial pump to supply the flow at a reasonable 2.5 GMP.

The Honda engine benefits from being very easy to start, with only one pull, and comes with a container of engine oil to add before you start it up for the first time. Its steel chaise does make this pressure washer a bit heavier than some of the others we have reviewed, but this wasn’t seen as a drawback unless regularly unloading from a truck. The sturdy frame also means that the hose and lance mounts will not get damaged easily.

We found that the included 15 degree nozzle was perfect for most jobs. Quickly cleaning patio and yard surfaces, whilst not damaging the surface, and often found we didn’t even need detergent to get the job done. Like many of these devices, the Simpson Pressure washers come ready assembled which is a big plus and shouldn’t be overlooked when ordering your own.

Our Take

The Easy-Kleen Professional is the second of our two reviewed hot water pressure washers. Similar to the NorthStar Pressure Washer it uses a diesel fuel burner to heat up the water. With the ability to raise the temperature up to 150 degrees Fahrenheit above the ambient temperature. A stand out feature of the heating element is the increased number of coils that increase its heat transfer efficiency. The stainless-steel water container is sealed with a ceramic blanket to reduce heat loss in even the coldest environments.

Unfortunately, this machine doesn’t offer a steam option, but it does include 5 quick connect nozzles at a range of sizes. Plus 50 feet of the high-pressure hose means you can work over a large area or around objects such as farm equipment.  

A 14 HP Kohler commercial-grade engine provides plenty of power that used with the triplex plunger pump provides 3.5 GPM at a maximum of 4000 PSI. The adjustable pressure allows you to select the correct pressure for each job. We found that 3000 PSI used with the 25 degree nozzle was more than adequate for most applications.

It should be noted that this is quite a heavy machine, especially when full of fuel. However, with its 4 wheel frame and 13 inch pneumatic tires, you will never struggle to move it around your yard.

Unless it is vital for you to have up to 4000 PSI we would recommend the NorthStar Pressure Washer over this one. They both have similar features, however, the Easy-Kleen doesn’t offer a steam option, plus the quality of components didn’t seem to be as high.