Why Add Pressure Washing?

Pressure washing is one of the highest-margin add-on services for cleaning businesses. Average rates of $150-$300 per hour make it extremely profitable, and the barrier to entry is relatively low compared to other specialties.

Gas vs. Electric: The Professional Choice

For professional use, gas-powered pressure washers are almost always the better choice. They offer 2,500-4,000 PSI versus 1,500-2,000 PSI for electric models, and they're not limited by cord length. The only exception is indoor work, where electric is necessary.

PSI and GPM: What Matters More

PSI (pressure) gets all the attention, but GPM (gallons per minute) is equally important. GPM determines how fast you rinse surfaces. A 3,000 PSI / 4 GPM machine cleans faster than a 4,000 PSI / 2 GPM machine in most scenarios.

Our Top Picks for 2026

  • Best Overall: Simpson PowerShot PS3228-S (3,300 PSI / 2.5 GPM) — $400
  • Best for Fleets: Pressure-Pro E4035HA (3,500 PSI / 4 GPM) — $2,800
  • Best Value: DEWALT DXPW3625 (3,600 PSI / 2.5 GPM) — $350
  • Best Hot Water: NorthStar 157310 (3,000 PSI / 4 GPM) — $3,200

Essential Accessories

Don't skimp on accessories. A surface cleaner attachment ($150-$300) cleans flat surfaces 4x faster than a standard nozzle. A downstream injector lets you apply chemicals at low pressure. And quality hoses last years longer than the cheap ones bundled with machines.