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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
593 ratings579 reviews
  1. 5 stars81% (483)
  2. 4 stars13% (77)
  3. 3 stars1% (8)
  4. 2 stars1% (3)
  5. 1 star4% (22)

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Showing 571-579 of 579 reviews
Sep 11, 2025
RingShawn
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!

Aug 16, 2025
lorenrod
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.

Oct 21, 2025
Juan B.
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!

Jun 12, 2020
DirtdrillerRandy
5 out of 5 stars review

Pure Cleaning Power, it's a Beast!

I bought this Pressure washer for cleaning hard surfaces such as concrete, brick and stone. I really like the down stream chemical injection system also. It has performed flawlessly so far.

Review from simpsoncleaning.com
Helpful?4LDY3BT2CMUR13758761122
Oct 17, 2020
Bumpa
5 out of 5 stars review

Very strong and efficient

It reduced the time it took to clean my concrete by 2/3. Very strong and fast. The gas usage was not bad ether. I have had it just under a month and am very happy.

Review from simpsoncleaning.com
Helpful?4LDY3BT2CMUR13758761122
Jan 14, 2019
Kyle37R
1 out of 5 stars review

Pump only lasted about 3 hours

I purchased the Simpson 4200psi and used it for a job and the pump started making a loud noise and quit working. For the price I paid for the pressure washer I expected it to last a long time. Hopefully everyone else’s experience has been better.

Review from simpsoncleaning.com
Helpful?4LDY3BT2CMUR13758761122
Nov 13, 2019
AlwaysForwardServices
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
DKSC
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
Jan 20, 2025
Pierr12
5 out of 5 stars review

Great machine

Good design , excellent performance very efficient

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

It's great to hear you've appreciated the design, and your 4400 PSI pressure washer has been performing powerfully to tackle your jobs with speed & efficiency. Show off your projects any time by tagging #simpsonclean on social media and we'd love to see photos of the results you achieve. Thanks for reviewing, Pierr12!