The short answer:a trailer mount gives you more water capacity, more equipment, and the flexibility to drop the rig at a job site and use your truck for something else. A truck (or van) mount is more maneuverable, doesn't require towing, and makes sense when parking access matters more than raw capacity. Most operators do better with a trailer, especially when starting out — but the right call depends on your routes, your market, and what you're actually washing.
Why people assume trailers are a hassle
Many people are averse to pulling a trailer, and that's understandable if you've never towed one built correctly. But most of the time, people overestimate the size of the rigs a wash business actually needs. A well-designed wash trailer isn't a car hauler — it's sized and balanced specifically for the equipment it carries.
The real reason home-built trailers feel dangerous
If you've ever seen (or heard about) a wash trailer swaying badly on the highway, it almost always comes down to the same thing: tongue weight and balance. A trailer that's too wide, too tongue-heavy, or too tongue-light for what it's carrying will sway — and that's one of the scariest, and most overlooked, problems with used or home-built systems. A purpose-built trailer is engineered around axle placement, bracing, and weight distribution for the specific equipment it carries, not a utility trailer with tanks bolted on. Get that right, and towing stops being the issue people expect it to be.
Trailer mount
- More water capacity and room for multiple reels
- Can be dropped at a job site while you use your truck elsewhere
- Better suited to high-volume, multi-stop commercial days
- Best choice if you're not sure yet how much you'll need to carry
- Requires a hitch and towing
- Needs a parking spot for the trailer, not just the truck
Truck / van mount
- No hitch, no towing, no trailer to park or store
- Easier to maneuver in tight lots and residential streets
- The rig is always with you — nothing left behind at a job site
- Lower profile if you don't want the business to look obvious
- Less room for water, tanks and add-on equipment
- If your vehicle is down for service, your whole business is down
So which one should you choose?
Sometimes a truck mount makes a lot of sense — sometimes it doesn't. If the truck size you'd need to fit everything ends up as big as what you'd tow anyway, you've given up trailer capacity for no real benefit. This is exactly the kind of thing worth walking through with someone who builds both, before you spend money on either. We talk through routes, budget and what you're actually washing in the first conversation, and tell you honestly which setup fits — not which one we'd rather sell you.
DETRAILERS options for each setup
We build both, across every business line:
Trailer mount
- DB Series — open-trailer mobile vehicle wash
- DE Series — enclosed mobile vehicle wash
- DBP Series — open-trailer pressure washing
- DEP Series — enclosed pressure washing
- Soft Wash Trailer Mount
Truck / van mount
- DVT — mobile vehicle wash skid
- DVTP — pressure washing skid
- Soft Wash Truck Mount
Common questions
Is a trailer mount or truck mount better for pressure washing?
Neither is universally better. A trailer mount carries more water and equipment and is easier to drop at a job site, while a truck mount is more maneuverable and doesn't require towing. The right choice depends on your routes, parking access, and how much capacity you actually need.
Is a trailer-mounted pressure washer hard to tow?
Most people overestimate how big these rigs actually are. A properly built trailer, with correct axle placement, bracing, and tongue weight, tows predictably. Sway problems almost always come from poorly built or home-built trailers, not from towing a wash trailer in general.