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The 4 Best Pressure Washers (2021 Review)

Pressure washers deliver a powerful pressurized stream of water to remove dirt, dust, mud, mold, and paint from a variety of surfaces. In this review, the This Old House Reviews Team researched the four best pressure washers on Amazon to help you find the product that’s right for you and your home. The products included in this article are available at various home improvement stores, local home centers, and online retailers like Amazon.

Pressure Washer Courtesy Amazon

A quality pressure washer removes stuck-on dirt and mold from your home’s siding, driveway, and walkway to restore their natural appearance. While all pressure washers are designed to clean your home’s exterior, not all models come with the same features. The This Old House Reviews Team has conducted research on the best pressure washers to help you find models with a variety of features to choose from. Here are our top four selections.

Best With Cleaning Solutions: Westinghouse Gas-Powered Pressure Washer

With a steel frame and 12-inch never-flat wheels, this heavy-duty pressure washer from Westinghouse can deliver a powerful clean to any surface with its five easy-to-connect nozzles. The integrated maintenance-free axial cam pump also provides 2.5 gallons of soapy water per minute to knock out outdoor projects with speed and ease.

Key Features

  • Pressure of 3,200 pounds per square inch (PSI)
  • Flow rate of 2.5 gallons per minute (GPM)
  • Gas engine
  • 63 pounds
  • Five nozzle tips

What Customers Are Saying

Almost 5,500 customers have reviewed this gas-powered pressure washer from Westinghouse on Amazon. It has an average rating of 4.7 stars out of 5 stars. Ninety-five percent of the reviews have 4 or more stars, while 4% of the reviews have 2 stars or less.

Customers said that the pressure washer was well-built and easy to assemble and use. While the majority of reviews raved about this product, a handful said that the pressure washer broke after a few uses. A couple people also mentioned that they didn’t receive all of the necessary parts for operation.

Best Accessories: Sun Joe Electric High-Pressure Washer

This Sun Joe pressure washer comes with two removable detergent tanks, a 34-inch extension wand, a needle clean-out tool, and five spray nozzles to help you complete your pressure-washing jobs. It also saves electricity by shutting off the pump when the trigger isn’t engaged.

Key Features

  • Pressure of 2,030 PSI
  • Flow rate of 1.76 GPM
  • Electric engine
  • 31 pounds
  • Five nozzle tips
  • Two-year warranty

What Customers Are Saying

The Sun Joe Electric High-Pressure Washer has an Amazon rating of 4.5 stars out of 5 stars. Of the over 37,000 global ratings, 90% of them gave this item 4 or 5 stars, and 6% gave it 1 or 2 stars.

Reviewers liked this product because it was quieter and more environmentally friendly than gas-powered options. Satisfied customers also liked how lightweight, easy to store, and easy to assemble it was. Unsatisfied customers said that its pump stopped working soon after it arrived, though one customer said that this could be fixed with pump protector lubricant.

Best Wheels: Simpson Cleaning MegaShot Gas Pressure Washer

This gas-powered pressure washer from Simpson is equipped with two 10-inch treaded tires to manage a variety of landscapes and one 25-foot hose to clean tough-to-reach areas. With this gas-powered pressure washer, you get a maximum pressure of 3,200 PSI and a maximum flow rate of 2.5 GPM.

Key Features

  • Pressure of 3,200 PSI
  • Flow rate of 2.5 GPM
  • Gas engine
  • 65 pounds
  • Five nozzle tips
  • Five-year warranty

What Customers Are Saying

The Simpson Cleaning MegaShot Gas Pressure Washer has an average rating of 4.5 stars out of 5 stars. Around 6,400 people have written reviews for this product, with 88% giving it 4 or 5 stars and 10% giving it a 1-star or 2-star rating.

Customers who were satisfied with their purchase said that the pressure washer offered plenty of power, allowing them to tackle nearly any project around their home. Dissatisfied reviews noted a variety of issues with the motor leaking oil and water.

Best Electric Pressure Washer: WHOLESUN Electric Pressure Washer

This high-powered electric pressure washer delivers a stream of water at up to 3,000 PSI for cleaning your home’s patio furniture, siding, and driveway. It also features two wheels and a light weight for easy portability.

Key Features

  • Pressure of 3,000 PSI
  • Flow rate of 2.4 GPM
  • Electric engine
  • 19 pounds
  • Four nozzle tips
  • Two-year warranty

What Customers Are Saying

This electric pressure washer from WHOLESUN has an average rating of 4.3 stars out of 5 stars. Almost 3,500 reviews have been written about this product. Eight-four percent of those reviews have 4 or 5 stars, while 11% have 1 or 2 stars.

Many reviewers said that this pressure washer worked better than their former gas-powered unit. They also liked how affordable the machine was. However, some customers said that it didn’t deliver the advertised amount of pressure, and some said that it leaked.

Buyer’s Guide

Before buying a pressure washer, it’s important to consider how each model’s accessories and specifications affect its user experience. Here are four factors to consider when making a purchase.

Power Source

Pressure washers are gas- or electric-powered. Gasoline-powered pressure washers deliver more power than their electric counterparts, though they require more maintenance because of their motor’s oil use. Electric-powered pressure washers use power cords instead of gas, so they’re lighter and easier to move around your yard.


Pounds per square inch (PSI) refers to how much pressure the washer’s stream of water creates. The higher the PSI, the more powerful the pressure washer. Most gas-powered pressure washers deliver around 3,000 PSI, while most electric models generate around 2,000 PSI.


The weight of a pressure washer directly affects its portability. Most gas-powered models are over 50 pounds, which is why they’re usually equipped with heavy-duty wheels to make transportation easier. Electric pressure washers are lighter, so they come with small wheels or handles for transportation.

Spray Nozzles

The spray nozzles used by a pressure washer are typically color-coded to correspond with a certain angle degree and water pressure. For example, most pressure washers use red to signify the zero-degree nozzle, which sprays a high-pressured, direct stream fit for cleaning stains off of hard surfaces, such as concrete.

Frequently Asked Questions

Can you pressure wash your car?

Yes. However, it’s important that you use the right pressure washer and correct setting so that you don’t strip or damage your car’s paint. Usually, a 2,000-PSI washer with a 40-degree nozzle is suitable for cleaning your car’s exterior.

What type of fuel can I use in my gas pressure washer?

Use fresh, unleaded gasoline with a minimum octane of 87 to fuel your pressure washer. The gas shouldn’t contain more than 10% ethanol.

What is a good PSI for a pressure washer?

It depends on the job you want to tackle. If you’re cleaning your home’s siding or driveway, a high-powered gasoline pressure washer with around 3,000 PSI is recommended. However, if you want to complete small jobs around the house, such as cleaning patio stairs or your car, a lower-powered model around 2,000 PSI is adequate.

How can you lower the PSI of a pressure washer?

To reduce a pressure washer’s PSI, increase your distance from the material you’re cleaning or switch nozzles. Nozzles with a greater angle degree have a lower PSI because the water is less concentrated.

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