Buying guide
Pressure Washer Buying Guide (2026)
How to buy a pressure washer without falling for PSI marketing: cleaning units, motor types, and the jobs that decide.
Buy this type if / avoid if
Buy a consumer electric (1,800-2,300 PSI, 1.2-1.8 GPM) if your jobs are driveways, siding, decks, cars, and patio furniture a few times a month. This covers the SPX3000, K5, Greenworks, and Ryobi here, and it covers 95% of homeowners.
Buy a premium electric with an induction motor if you wash weekly, run long sessions, or keep tools for a decade. The Karcher K5 is the archetype.
Buy gas (2,800+ PSI, 2.5+ GPM) if you clean more than ~1,500 sq ft of concrete regularly, wash commercially, or need to work far from outlets. Avoid gas if you will not do oil changes and winterizing: neglected gas washers die young.
Avoid anything under 1,800 PSI for concrete work; it will technically work but take forever. Avoid no-name washers with no published GPM: hidden flow specs mean weak flow.
Cleaning units: the only math you need
Multiply max PSI by max GPM. That rough product, cleaning units, predicts real cleaning speed far better than PSI alone. A 2030 PSI / 1.76 GPM machine (~3,570 CU) out-cleans a 2300 PSI / 1.2 GPM machine (~2,760 CU) despite the lower headline number. When comparing washers, compute this first.
Motor types and what they mean for you
Universal motors are cheap, light, loud, and hot. Fine for occasional use; they wear faster under long sessions. Induction motors are heavier, quieter, cooler, and longer-lived; water-cooled induction (Karcher K5) is the best of the class. For a washer you use monthly, universal is fine. For weekly use, induction pays for itself in longevity.
Hose length, fittings, and the accessories that matter
Get 25 feet of hose if your outlets sit far from your work area; 20 feet is workable but means repositioning. Standard 1/4-inch quick-connect fittings accept the huge third-party accessory market (foam cannons, surface cleaners, extension hoses); proprietary fittings (Karcher) limit you. The two accessories worth buying: a foam cannon for cars and a surface cleaner for driveways.
Questions, answered
How much PSI do I really need?
1,800 to 2,300 PSI handles every standard homeowner job. Below 1,800 struggles on concrete; above 2,300 in electric land usually means inflated marketing or a gas machine. Pair the PSI with at least 1.4 GPM for efficient work.
What GPM should I look for?
1.4 GPM is the practical minimum for driveways and siding at reasonable speed. 1.76 GPM (SPX3000) is excellent for the class. 1.2 GPM is fine for cars and small jobs but slow on large areas.
Do I need hot water?
No. Consumer electrics are cold-water machines, and cold water with proper detergent handles homeowner grime. Hot-water washers are commercial equipment for grease-heavy work like restaurant exhausts.
Can a pressure washer strip paint?
Yes, easily, which is both a feature and a warning. A 25-degree nozzle at 12+ inches cleans painted siding safely; a 0-degree nozzle up close strips it to bare wood. Always start gentle and test first.