If you need the best pressure washer for commercial cleaning, the right pick depends on PSI, water flow, power source, and mobility. This guide compares five Westinghouse models—four electric units and one gas-powered unit—for jobs such as fleet vehicles, sidewalks, loading areas, fences, driveways, and building exteriors.
Key takeaways: The Westinghouse WPX3400 gas model has the highest documented flow at 2.6 GPM. The Westinghouse WPX3400e is the strongest electric option at 3400 max PSI and 2.0 max GPM. The Westinghouse ePX3100v is the most portable electric option at 18 pounds and 2100 max PSI.
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Table of contents
- Who This Is For
- Selection Criteria
- Quick Comparison Table
- Product-by-Product Tradeoffs
- How to Choose
- FAQ
Products Mentioned in This Guide
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Who This Is For
This guide is for commercial users who need a reliable pressure washer for frequent cleaning: property maintenance crews, mobile detailers, fleet vehicle cleaners, pressure washing side businesses, and facility teams. It covers corded electric models for plug-in, low-maintenance use and a gas-powered model for higher flow and cordless mobility.
Selection Criteria
- PSI and GPM: PSI is the scrubbing force. GPM is the water volume that moves dirt and speeds up rinsing. For commercial jobs, GPM often has a bigger impact on productivity. The supplied models range from 2100 to 3400 max PSI and 1.76 to 2.6 max GPM.
- Power source: Electric models need a 120V outlet and avoid gas fuel storage. The gas model is cordless and provides higher flow, but requires fuel and engine care.
- Portability and storage: Weight, wheels, handles, and hose or cord length affect how quickly you can move between jobs. The supplied models list 20- to 25-foot hoses, built-in handles or wheels, and a 35-foot GFCI cord on the WPX electric units.
- Soap and chemical application: Onboard soap tanks or a detachable foam cannon support detergent use on vehicles, siding, and greasy surfaces.
- Durability and support: The supplied product records list a 3-year limited service, labor, and parts coverage across these Westinghouse models.
Quick Comparison Table
| Product | Power source | Max PSI / GPM | Rated PSI / GPM | Soap system | Mobility | Best for |
|---|---|---|---|---|---|---|
| Westinghouse ePX3500 Electric Pressure Washer, 2500 Max PSI 1.76 Max GPM with Anti-Tipping Technology, Onboard Soap Tank, Pro-Style Steel Wand, 5-Nozzle Set, for Cars/Fences/Driveways/Home/Patios | Electric | 2500 / 1.76 | 2000 / 1.2 | 20 oz onboard soap tank | 19 lb, four quick-lock wheels, anti-tipping | Driveways, vehicles, fences, patios |
| Westinghouse WPX3000e Electric Pressure Washer, 3000 Max PSI and 1.76 Max GPM, Induction Motor, Onboard Soap Tank, Spray Gun and Wand, 5 Nozzle Set, for Cars/Fences/Driveways/Homes/Patios/Furniture | Electric | 3000 / 1.76 | 2600 / 1.1 | .45 gallon onboard soap tank | Steel frame, 10-inch never-flat wheels, 35-foot GFCI cord | Sidewalks, garages, exterior walls, furniture |
| Westinghouse WPX3400e Electric Pressure Washer, 3400 Max PSI and 2.0 Max GPM, Brushless Motor, Onboard Soap Tank, Spray Gun and Wand, 5 Nozzle Set, for Cars/Fences/Driveways/Homes/Patios/Furniture | Electric | 3400 / 2.0 | 3000 / 1.1 | Half gallon onboard soap tank | Steel frame, 10-inch never-flat wheels, 35-foot GFCI cord | Decks, siding, driveways, patios, heavier electric cleaning |
| Westinghouse ePX3100v Electric Pressure Washer, 2100 Max PSI 1.76 Max GPM, Built-in Carry Handle, Detachable Foam Cannon, Pro-Style Steel Wand, 3-Nozzle Set, for Cars/Fences/Driveways/Home/Patios | Electric | 2100 / 1.76 | 1800 / 1.2 | Detachable foam cannon | 18 lb, built-in carry handle | Mobile detailing, stairs, fencing, light commercial |
| Westinghouse WPX3400 Gas Pressure Washer, 3400 PSI and 2.6 GPM, Onboard Soap Tank, Spray Gun and Wand, 5 Nozzle Set, for Cars/Fences/Driveways/Homes/Patios/Furniture | Gas | 3400 / 2.6 | Not listed | Half gallon onboard soap tank | Steel frame, 12-inch never-flat wheels | Large flatwork, sites without outlets, high-flow rinsing |
Product-by-Product Tradeoffs
Westinghouse ePX3500 Electric Pressure Washer, 2500 Max PSI 1.76 Max GPM with Anti-Tipping Technology, Onboard Soap Tank, Pro-Style Steel Wand, 5-Nozzle Set, for Cars/Fences/Driveways/Home/Patios
Documented specs: 2500 max PSI and 1.76 max GPM; 2000 rated PSI and 1.2 rated GPM; 25-foot nylon braided hose; 17.5-inch pro-style steel wand; 20 oz onboard soap tank; 19 pounds; four quick-lock wheels with 360-degree steering and anti-tipping design; auto-stop pump.
Tradeoffs: This is the more powerful of the two compact ePX electric units in this guide. The anti-tipping design and onboard soap tank are useful for uneven driveways and detergent work. It is not as strong as the WPX3000e or WPX3400e, and its 25-foot hose means you may need to reposition the unit often on larger jobs.
Best for: Smaller commercial jobs where storage, portability, and maneuverability matter.
Westinghouse WPX3000e Electric Pressure Washer, 3000 Max PSI and 1.76 Max GPM, Induction Motor, Onboard Soap Tank, Spray Gun and Wand, 5 Nozzle Set, for Cars/Fences/Driveways/Homes/Patios/Furniture
Documented specs: 3000 max PSI and 1.76 max GPM; 2600 rated PSI and 1.1 rated GPM; 25-foot abrasion-resistant super-flex hose; high-pressure metal spray gun and wand; .45 gallon onboard soap tank; 5 quick-connect nozzles; steel frame; 10-inch never-flat wheels; 35-foot GFCI cord.
Tradeoffs: The WPX3000e steps up maximum PSI from the compact ePX models and adds a metal gun and wand, larger wheels, and a longer GFCI cord. Its rated flow of 1.1 GPM is the same as the WPX3400e, so it is better suited to PSI-focused work than high-volume rinsing. The gas WPX3400 still offers more flow for large-area productivity.
Best for: Medium-duty electric work on sidewalks, garage floors, exterior walls, and patio furniture.
Westinghouse WPX3400e Electric Pressure Washer, 3400 Max PSI and 2.0 Max GPM, Brushless Motor, Onboard Soap Tank, Spray Gun and Wand, 5 Nozzle Set, for Cars/Fences/Driveways/Homes/Patios/Furniture
Documented specs: 3400 max PSI and 2.0 max GPM; 3000 rated PSI and 1.1 rated GPM; brushless motor; maintenance-free axial 3-piston auto-stop pump; 25-foot abrasion-resistant super-flex hose; half gallon onboard soap tank; steel frame; 10-inch never-flat wheels; 35-foot GFCI cord.
Tradeoffs: This is the highest-output electric model in the supplied list for maximum PSI and maximum GPM. The brushless motor and larger half-gallon soap tank make it a stronger candidate for repeated commercial use. However, the rated water flow is still 1.1 GPM, so the gas model will rinse faster on large or heavily soiled surfaces.
Best for: Commercial electric cleaning on decks, driveways, siding, fences, garage floors, and vehicles.
Westinghouse ePX3100v Electric Pressure Washer, 2100 Max PSI 1.76 Max GPM, Built-in Carry Handle, Detachable Foam Cannon, Pro-Style Steel Wand, 3-Nozzle Set, for Cars/Fences/Driveways/Home/Patios
Documented specs: 2100 max PSI and 1.76 max GPM; 1800 rated PSI and 1.2 rated GPM; 20-foot nylon braided hose; detachable foam cannon; pro-style steel wand; 3-nozzle set; built-in carry handle; 18 pounds; auto-stop pump.
Tradeoffs: The ePX3100v is the lightest and most portable model in this guide, and its detachable foam cannon is convenient for cleaning vehicles and equipment. It has the lowest maximum PSI, a shorter 20-foot hose, and a 3-nozzle set instead of the 5-nozzle sets found on the larger models.
Best for: Mobile detailing, light commercial cleaning, stairs, fencing, and jobs where carry-handle portability is a priority.
Westinghouse WPX3400 Gas Pressure Washer, 3400 PSI and 2.6 GPM, Onboard Soap Tank, Spray Gun and Wand, 5 Nozzle Set, for Cars/Fences/Driveways/Homes/Patios/Furniture
Documented specs: 3400 PSI and 2.6 GPM; 212cc 4-stroke Westinghouse OHV horizontal shaft engine with recoil start; axial cam pump; 1-gallon gas tank; half gallon onboard soap tank; 25-foot abrasion-resistant super-flex hose; 5 quick-connect nozzles; steel frame; 12-inch never-flat wheels.
Tradeoffs: The WPX3400 gas model has the highest flow in this guide at 2.6 GPM, which can improve rinsing speed on large driveways, sidewalks, and building exteriors. It is cordless and rides on larger 12-inch wheels. The tradeoffs are fuel storage, recoil starting, and routine engine care. If you work where a 120V outlet is available, the WPX3400e offers similar maximum PSI with lower flow.
Best for: High-productivity outdoor commercial jobs, large flatwork, and sites without convenient AC power.
How to Choose
Start with the water flow and power source that match your typical job.
- Light-duty and mobile detailing: Choose the Westinghouse ePX3100v or Westinghouse ePX3500 for lighter weight, easier storage, and simpler soap application on cars, fences, stairs, and patios.
- Heavy-duty electric cleaning: Choose the Westinghouse WPX3400e for 3400 max PSI and 2.0 max GPM without gas engine maintenance.
- Medium-duty electric cleaning: Choose the Westinghouse WPX3000e if you want higher maximum PSI than the compact models but do not need the WPX3400e’s brushless motor and higher max GPM.
- Large sites or no outlet: Choose the Westinghouse WPX3400 gas model for 2.6 GPM of water flow and cordless gas-powered mobility.
Also check hose and cord reach. The WPX electric models in this guide list a 35-foot GFCI cord, while the ePX compact models have built-in handles and lighter frames. If soap application is part of most jobs, compare the onboard soap tank sizes or the detachable foam cannon on the ePX3100v.
FAQ
Are electric pressure washers powerful enough for commercial work?
They can be. The Westinghouse WPX3400e lists 3400 max PSI and 2.0 max GPM, which covers many decks, sidewalks, siding, garage floors, vehicles, and patio furniture. The gas-powered Westinghouse WPX3400 lists 2.6 GPM, so it may rinse large or heavily soiled areas faster.
What is the difference between max PSI and rated PSI?
Max PSI is the peak pressure at the lowest flow setting. Rated PSI and rated GPM describe the working flow. In the supplied product records, most of these Westinghouse electric models list a lower rated PSI and rated GPM than their max numbers.
Can these models use a surface cleaner or foam cannon?
The Westinghouse WPX3000e, WPX3400e, and WPX3400 gas models list compatibility with pressure washer accessories such as surface cleaners, undercarriage cleaners, and foam cannons with M22 fittings. The Westinghouse ePX3100v includes a detachable foam cannon.
Do these pressure washers include a soap tank?
Most do. The ePX3500 has a 20 oz onboard soap tank, the WPX3000e has a .45 gallon onboard soap tank, and the WPX3400e and WPX3400 gas have a half gallon onboard soap tank. The ePX3100v uses a detachable foam cannon instead of an onboard tank.
Which Westinghouse pressure washer is best for a small commercial operation?
It depends on the work. For light portability, the ePX3100v or ePX3500 fit well. For higher electric power, the WPX3400e offers the highest maximum PSI and GPM among the electric models in this guide. For no-outlet or heavy rinsing work, the WPX3400 gas model is the strongest flow option.
What warranty is listed for these Westinghouse pressure washers?
The supplied product records list a 3-year limited service, labor, and parts coverage across these Westinghouse models. Check the manufacturer listing for specific terms and support details.