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Customer reviews for SIMPSON PowerShot 4400 PSI at 4.0 GPM SIMPSON 420cc Gas Pressure Washer for
SIMPSON PowerShot 4400 PSI at 4.0 GPM SIMPSON 420cc Gas Pressure Washer
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4.7 out of 5 stars
stars
697 ratings683 reviews
  1. 5 stars83% (576)
  2. 4 stars12% (83)
  3. 3 stars2% (11)
  4. 2 stars1% (4)
  5. 1 star3% (23)

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Showing 671-680 of 683 reviews
Nov 13, 2019
Reviewer name: AlwaysForwardServices
5 out of 5 stars
5 out of 5 stars review

Great Machine

This is the first unit we purchased to start our business. Easy to use and Powerful. I love this thing...IT IS A BEAST!

Review from simpsoncleaning.com
Helpful?4LDY3BT2CMUR13758761122
reply from Customer Service

Glad you love it AlwaysForwardServices!!! Best of luck with your new business, you're off to a great start. - SIMPSON Team

May 6, 2020
Reviewer name: DKSC
1 out of 5 stars
1 out of 5 stars review

Injector problems

As a pressure washer the stats are impressive however I cannot get the chemical injector to work properly.

Review from simpsoncleaning.com
Helpful?4LDY3BT2CMUR13758761122
Sep 29, 2025
Reviewer name: Anonymous
1 out of 5 stars
1 out of 5 stars review

Just purchased today 9-29-2025.

[This review was collected as part of a promotion.] Just purchased as of today 9-29-2025. To be reviewed later..

Review from simpsoncleaning.com
Helpful?4LDY3BT2CMUR13758761122
reply from Simpson Team

We look forward to the update, Ron Cooper! Enjoy that machine!

Sep 11, 2025
Reviewer name: RingShawn
3 out of 5 stars
3 out of 5 stars review

So far pretty good

Only used it a little bit today so far seems okay, hopefully will get to test it out this weekend!

Review from simpsoncleaning.com
Helpful?4LDY3BT2CMUR13758761122
reply from Simpson Team

We're excited for you to start really enjoying the performance & power of your new Simpson pressure washer this weekend, RingShawn. Feel free to tag #simpsonclean on social media once you start tackling your projects & we'd love to see photos of your results. Thanks for reviewing!

Oct 16, 2025
Reviewer name: Nate80
5 out of 5 stars
5 out of 5 stars review

great model

I bought this a week ago! Runs great! Great pressure washer for a start up

Review from simpsoncleaning.com
Helpful?4LDY3BT2CMUR13758761122
reply from Simpson Team

It's great to hear you've enjoyed a smooth & powerful performance, & your 4200 PSI pressure washer has delivered a five-star cleaning experience, Nate80. Show off your work any time by tagging #simpsonclean on social media & we'd love to see photos of your projects. Thanks for the feedback!

Nov 10, 2025
Reviewer name: Clem1982
5 out of 5 stars
5 out of 5 stars review

Works great

I bought this power washer about a week ago and so far it has been working great

Review from simpsoncleaning.com
Helpful?4LDY3BT2CMUR13758761122
reply from Simpson Team

It's great to hear you've enjoyed an excellent performance from your new 4200 PSI pressure washer, Clem1982. Show it off any time by tagging #simpsonclean on social media with your before/after photos & we'd love to see it at work. Thanks for the positive feedback!

Oct 21, 2025
Reviewer name: Juan B.
4 out of 5 stars
4 out of 5 stars review

Look very strong and very compact

I hear good things about the product and I needed to try it for my self

Review from simpsoncleaning.com
Helpful?4LDY3BT2CMUR13758761122
reply from Simpson Team

We're glad to hear you've been pleased with the rugged quality & compact design, and we're confident your 4200 PSI pressure washer will deliver a powerful performance worthy of its reputation. You can show off your work any time by tagging #simpsonclean on social media & we'd love to see the results you achieve on your projects. Enjoy your machine, Juan B!

Aug 29, 2025
Reviewer name: Sam96
2 out of 5 stars
2 out of 5 stars review

Terrible pump!

The pressure washer’s pump is already leaking after just 3 uses.

Review from simpsoncleaning.com
Helpful?4LDY3BT2CMUR13758761122
reply from Simpson Team

This is certainly not what we expect to hear, & we're concerned to read about the leak you describe. If you would please reach out to our team at 877-362-4271 or email us at productsupport@simpsoncleaning.com we hope to determine how to get this issue resolved as quickly as possible. We appreciate you sharing this experience & hope to hear from you soon, Sam96!

Oct 5, 2025
Reviewer name: Kyler07
5 out of 5 stars
5 out of 5 stars review

Honda 🤟🏼

Solid unit, works great. Starts up every time, super reliable honda engine and great AAA pump.

Review from simpsoncleaning.com
Helpful?4LDY3BT2CMUR13758761122
reply from Simpson Team

It's great to hear your 4200 PSI pressure washer has been performing with the power & reliability you expect from those quality components, Kyler07. Feel free to show it off any time by tagging #simpsonclean on social media & we'd love to any before/after photos. Thanks for reviewing & have fun knocking out your projects!

Aug 16, 2025
Reviewer name: lorenrod
5 out of 5 stars
5 out of 5 stars review

Great power.

Brand new and looks awesome. Love the Honda engine.

Review from simpsoncleaning.com
Helpful?4LDY3BT2CMUR13758761122
reply from Simpson Team

It's good to hear you've been happy with the quality components of your 4200 PSI pressure washer & we're confident it will serve you well! Feel free to show off your work any time by tagging #simpsonclean on social media & we'd love to see any photos of your results. Enjoy that machine & thanks for the review, lorenrod.