As an Amazon Associate we earn from qualifying purchases. Prices and availability are subject to change. Read our full affiliate disclosure.
Overview
I鈥檝e used both of these pressure washers a lot. The Sun Joe SPX3000 is the affordable electric option that almost everyone starts with. It鈥檚 light, cheap, and easy to store. The DeWalt DWPW2400 is a different beast. It costs nearly three times as much, weighs almost twice as much, and uses a gas-style frame. But it鈥檚 also electric. So the question is: why would you spend $329 on a DeWalt that鈥檚 still plugged into the wall?
The Sun Joe targets homeowners with light to medium cleaning. Think patio furniture, a dirty car, or a small driveway. It鈥檚 for people who don鈥檛 want to spend a lot or store a heavy machine. The DeWalt targets someone who wants gas pressure washer power without the noise, fumes, and maintenance. It鈥檚 for people who clean concrete, large decks, or heavy equipment regularly. These are two different buyers, but they overlap. And that鈥檚 why we鈥檙e putting them head to head.
Spec Comparison
Let鈥檚 start with the numbers on the box. The Sun Joe SPX3000 claims 2030 PSI and 1.76 GPM. The DeWalt DWPW2400 claims 2400 PSI and 1.1 GPM. If you just looked at these, you鈥檇 think the Sun Joe moves more water but the DeWalt hits harder. That鈥檚 partly true, but not the whole story.
The Sun Joe鈥檚 flow is legit. At 1.76 GPM, it feels like you鈥檙e actually washing something. The DeWalt鈥檚 1.1 GPM feels anemic in comparison. You鈥檒l notice the difference immediately when rinsing. The Sun Joe clears soap faster and flushes dirt off surfaces quicker. But the DeWalt鈥檚 higher PSI means it can etch concrete and strip old paint better. It鈥檚 a tradeoff: flow vs. pressure.
Weight is another story. The Sun Joe weighs 24.3 pounds. That鈥檚 manageable. You can carry it in one hand. The DeWalt is 42 pounds. That鈥檚 heavy. It has a steel frame and bigger wheels, but it鈥檚 still a pain to haul up stairs or lift into a truck bed. If you have a bad back, skip the DeWalt.
Hose length matters too. The Sun Joe comes with a 20-foot hose and 35-foot power cord. That鈥檚 enough for most driveways. The DeWalt has a shorter 30-foot power cord (same as Sun Joe) but a stiffer, thicker hose that feels better but is harder to coil. The Sun Joe鈥檚 hose is flexible and easy to store. The DeWalt鈥檚 hose is tougher but fights you when you try to put it away.
One spec the box doesn鈥檛 tell you: noise. The Sun Joe is quieter. The DeWalt has a louder motor, especially under load. It鈥檚 not gas-loud, but it鈥檚 not library-quiet either. If you鈥檙e cleaning near neighbors early in the morning, the Sun Joe is the polite choice.
Performance
I tested both machines on the same jobs: a dirty 1970s concrete driveway, a wooden fence with peeling paint, a midsize SUV, and a patio set covered in moss. Here鈥檚 what happened.
Driveway cleaning: The Sun Joe with the 15-degree nozzle did a solid job. It cleared dirt and oil stains, but it took time. You have to go slow and hold the nozzle close. The DeWalt, with its higher PSI, cut through grime faster. It knocked out 10-year-old tire marks in half the passes. But here鈥檚 the catch: the DeWalt鈥檚 low flow meant the dirt didn鈥檛 get washed away as quickly. I had to stop and spray the sludge off with a garden hose more often. Sun Joe鈥檚 higher flow flushed the debris nicely. Winner here depends on your dirt. Heavy stain? DeWalt. General cleaning? Sun Joe.
Fence stripping: I used a rotary surface cleaner on both. The Sun Joe bogged down a bit on thick paint. The DeWalt spun the cleaner faster and ripped paint off in sheets. That higher PSI really helps. But the Sun Joe finished the job eventually. It just took longer. If you鈥檙e stripping a whole deck, the DeWalt saves serious time.
Car washing: This is where the Sun Joe shines. The low PSI is safer for car paint, and the high flow rinses soap off instantly. The DeWalt feels harsh on a car. You have to stand further back and be careful with the trigger. One slip and you could peel clear coat. The Sun Joe is just more forgiving. Plus, the Sun Joe鈥檚 soap tank is bigger and easier to fill. The DeWalt鈥檚 鈥渙nboard鈥?tank is small and awkward to access. Not a fan.
Patio furniture: Easy win for the Sun Joe. The lightweight unit and flexible hose make it easy to drag around. The DeWalt is a chore. You鈥檙e lugging a 42-pound machine around a backyard, tripping over the stiff hose. It works great, but you鈥檒l be tired.
Bottom line: the DeWalt hits harder. The Sun Joe flows better and is easier to use. For most casual cleaning, I preferred the Sun Joe. It just feels more balanced for the average homeowner. But if you鈥檙e a power user, the DeWalt鈥檚 extra punch is real.
Build Quality & Durability
I鈥檝e owned a Sun Joe SPX3000 before. It lasted three years before the pump started leaking. That鈥檚 decent for $119. The plastic frame feels cheap, but it鈥檚 fine for light use. The connectors are brass, which is good. The hose is flimsy but replaceable. The main unit handles accidental drops okay鈥擨鈥檝e knocked mine over a few times without issues. But I wouldn鈥檛 use it on a construction site.
The DeWalt DWPW2400 feels built for a construction site. The steel frame is solid. The wheels are larger and better for rolling over gravel. The hose is thicker and more abrasion-resistant. The motor housing is metal, not plastic. Everything about it says 鈥渢his will outlast three Sun Joes.鈥?That鈥檚 the theory anyway. In practice, I鈥檝e seen reports of the DeWalt pump failing too, usually within 2-3 years. So it鈥檚 not bulletproof. But it feels tougher.
One thing to note: the DeWalt鈥檚 connectors are also brass, but they鈥檙e a different thread size. That means aftermarket accessories don鈥檛 always fit. Sun Joe uses standard Karcher-style connectors, which are everywhere. You can grab a $10 foam cannon at Walmart and it fits. With the DeWalt, you鈥檒l often need adapters. Small annoyance.
Storage is another big difference. The Sun Joe folds up small and hangs on a wall hook. The DeWalt is a beast. It needs garage floor space or a big shelf. The hose wraps around the unit, but it鈥檚 bulky. If storage space is tight, the Sun Joe wins immediately.
Overall, the DeWalt is tougher. The Sun Joe is more practical for most homes. The DeWalt鈥檚 build quality is more premium, but it鈥檚 still an electric pressure washer with a limited lifespan. Don鈥檛 expect it to last like a gas Honda unit. It won鈥檛.
Price & Value
This is the easiest part. Sun Joe SPX3000: $119. DeWalt DWPW2400: $329. That鈥檚 a $210 difference. You can almost buy two Sun Joes for the price of one DeWalt. And for most people, that鈥檚 the right move.
The Sun Joe gives you 95% of the cleaning power at 40% of the cost. For the average homeowner, the extra pressure from the DeWalt is overkill. You don鈥檛 need to strip paint every weekend. You need to wash your car and clean the patio. The Sun Joe does that perfectly.
The DeWalt makes sense if you鈥檙e cleaning concrete every month, or if you have a rental property with big surfaces. It鈥檚 also better if you want one machine that鈥檒l last longer (maybe) and you don鈥檛 mind the weight. But the price gap is hard to justify. $329 gets you into entry-level gas territory. A Simpson gas unit with 2800 PSI and 2.3 GPM is $299 on sale. That would blow both of these away. So the DeWalt sits in an awkward spot. It鈥檚 too expensive to compete with cheap electrics, but not powerful enough to beat budget gas units.
What about the total cost of ownership? Both need occasional repairs. The Sun Joe鈥檚 cheap parts are easier to find. A replacement pump is $40. A DeWalt replacement pump is $100+ if you can find one. Warranty? Both have 2-year warranties. So the Sun Joe is lower risk financially. If it breaks after year three, you just buy another and still come out cheaper.
The Sun Joe also includes more in the box. You get two detergent tanks (onboard and external), a wheel kit (makes it easier to move), and a spray gun with a safety lock. The DeWalt includes a spray gun, two nozzles, and a stiff brush. That鈥檚 it. For the price, you expect more accessories. I鈥檇 say the value equation heavily favors the Sun Joe.
Winner
If I had to buy one today with my own money, I鈥檇 get the Sun Joe SPX3000. It鈥檚 the smart choice for 90% of people. It cleans well enough, stores easily, and doesn鈥檛 hurt your wallet. I ran both machines side by side, and the Sun Joe handled everything I threw at it. It took longer on tough jobs, but it never failed. And I could buy two of them and still have money left over for a good hose and cleaning chemicals.
The DeWalt DWPW2400 is not a bad machine. It鈥檚 just not $210 better. The higher PSI is noticeable, but the low flow rate holds it back. The build quality is nicer, but it鈥檚 heavy and hard to store. The only people I鈥檇 recommend it to are those who absolutely need that extra pressure for concrete and don鈥檛 want gas. Everyone else should save their money.
My pick: Sun Joe SPX3000. It鈥檚 the practical winner. You鈥檒l be happy, and your wallet will thank you.
Side note: if you do buy the Sun Joe, buy a longer hose ($20 on Amazon) and a quality quick-connect set. Those two upgrades make it feel like a premium machine. You鈥檒l still spend less than the DeWalt.
That鈥檚 the truth from someone who actually washed his driveway twice in one weekend just to compare. I鈥檓 still using the Sun Joe a year later. The DeWalt is in my buddy鈥檚 shed, gathering dust. Make of that what you will.