Bought the Simpson 4240 at Lowes along with a Surface Cleaner. First use was our front driveway and side walks - the combo did a GREAT job. Between the Simpson's high pressure/high volume output with a stainless steel 15 " surface cleaner - the job went quickly with wonderful results.

the unit just as presented in ads. while this unit will be used in my farm application it will perform a commercial level job. I compared many brands and spoke with my brother who has a cleaning business. he had a smaller simpson it works great. he is waiting for my review to order one. Please note to anyone reading this review be honest with yourself as to want type of job you are doing. don't buy less and expect more.

I recently bought this for power washing driveways and walkways. The power is a noticeable difference over my 3200 PSI unit. The only issue I have not figured out yet is the soap hose. When the unit is off, the soap is pulled through the hose. However, when the unit is running, no soap appears to be pulled into the unit. Not sure if the problem is the unit or something I am not doing correctly.

I bought this to pressure wash my house and driveway. Using only the green tip it works great. The best thing about all this power is time. My son in law has an 1800 psi electric pressure washer and if I would have used it on my project I'm guessing 12 hours. With the 4400 psi I did the entire project in 4 hours.

Excellent machine. Easy to set up. Powerful. Well made.

I JUST RECEIVED MY UNIT AND ITS VERY WELL BUILT I KNOW THIS ONE WILL LAST ME FOR A GREAT GREAT SEASON! PLUS I DESIRE TO ONLY HAVE A SIMPSON PRESSURE WASHER PRODUCT BECAUSE OF THE LOYALTY I HAVE DIVINELY EXPERIENCED FROM OF THEIR PRODUCTS! I HAVE NEVER EXPERIENCED ANY KIND OF PROBLEMS WHATSOEVER WITH THEIR PRODUCTS BECAUSE I HAVE ANOTHER PRESSURE WASHER THAT I HAVE HAD FOR A GOOD WHILE AND IT IS STILL RUNNING LIKE ITS BRAND NEW! AND I ONLY BROUGHT THIS ONE BECAUSE I BROUGHT A NEW SURFACE CLEANER THAT CALLED FOR A PRESSURE WASHER 3500PSI -4500PSI!

Opened the box today, easy set up, had to put in engine oil 10W-30. Crankcase oil already add before boxed. Very heavy duty hose included 50 ft. I bought addtional 100 ft extension. I have a very large driveway and basketball court and due to the 150 ft of washer to wand hose, I didn't have to move the power washer once. Zero degree apeture attachment (red) allowed me to reach mud dauber nests 23 feet up in entryway.

I have used my new unit for the first time yesterday and found it to be very powerful compared to my previous units. Overall, I am happy with the machine. There are a few items that I believe that they could improve on. The markings for the choke position and fuel on are very small and would be better if they were marked larger and bolder. My previous unit had an idle down feature when the trigger was off that was very nice because there wasn't the same urgency to have keep the the water flow constantly moving and it also reduced the kickback when the trigger is pulled. An additional feature that would be nice is to have would be the ability to add an electric start as an option.

I purchased two weeks ago and it already paid for itself the cost of having someone do the entire house and the pavers in the backyard around the pool. It was much more cost-effective to purchase the Simpson 4200 power washer with all the attachments

I am having to get warranty work done for the second time in just over a year losing over two months of operation and time/money taking to service center that is close to an hour away. My friend purchased the same unit around the same time (April 2025) and has had his fixed once already for the same exact reason.