Quick answer
A hydrovac truck loosens soil with pressurized water and removes it with a vacuum system. Before comparing units, define what you dig, where and how often. Then compare configuration, condition records, cold-weather equipment, service support and the complete quoted package, not only the headline price.
What should you look for when buying a hydrovac truck?
Look for a unit that matches your digging, not the biggest specification on the lot. Start with the work: soil conditions, typical depth, site access and the seasons you operate. A good seller asks about that work before recommending a unit, then documents the condition of the blower, water pump, boom and chassis.
- The kind of digging you do most, such as exposing utilities or digging holes and trenches
- The soil and ground conditions you usually work in
- Typical depth and volume of material per job
- Whether your sites are tight urban locations or open right-of-way
- The seasons and temperatures you operate in
- Where you dispose of excavated material
Which hydrovac configuration fits your work?
The right configuration follows from your typical job. Debris body and water tank capacity, water pressure and flow, boom reach and cold-weather equipment all trade off against truck size, weight and transport. Ask the seller to put the specifications that matter to you in writing for the exact unit being quoted.
- Debris body and water tank capacity for your typical job
- Water pump pressure and flow, and the vacuum system type
- Boom reach and how it moves around your typical site
- Cold-weather equipment, if you work through winter
- Truck-mounted or trailer-mounted, and what that means for your drivers and transport
- Chassis weight ratings and the licensing your drivers hold
Should you buy a new or used hydrovac truck?
Either can make sense. A new unit gives you a current specification, a warranty and a known history, but may come with a lead time. A used unit can be available sooner, and its value depends on documented hours, repairs and condition. Compare the complete package either way, including tools, delivery and training.
New units
Confirm the specification as built, the warranty, the lead time and who provides service and training.
Used units
Ask for hours on the pump or blower and the chassis, repair history and condition records, and confirm service support is available near you.
How much does a hydrovac truck cost?
Hydrovac prices depend on age, configuration, condition and seller. Truck or trailer mounting, debris body size, a heater package and chassis miles all change the number, so request a written quote for the exact unit that lists what is included, and budget separately for delivery, training and any repairs.
Questions to ask the seller
- What kind of work was this unit used for?
- Can you show the pump or blower and chassis records?
- Who services this equipment near my location?
- What is included in the quoted price?
- Can I see it operate before I commit?
What to have ready for a quote
- The listing link or written quote
- Who is selling it: a dealer, a private seller or an auction
- Year, make, model and hours or miles, if known
- The price and exactly what it includes
- When you need the equipment working
Share the quote or listing and your timing. Options depend on your business, the equipment and the financing provider's review. See hydrovac truck financing for what lenders commonly look at.
Frequently asked questions
How does a hydrovac truck work?
A hydrovac truck sprays pressurized water to loosen soil while a vacuum system pulls the slurry through a boom and hose into a debris tank. Because it digs without metal teeth, crews use it to expose buried utilities with less risk of damaging them. The debris is then hauled away for disposal.
Can you hydrovac in the winter?
Many crews do, using units with water heating and cold-weather packages that keep the water system from freezing. Frozen ground can slow the work. If you dig through winter, confirm the exact unit's cold-weather equipment is installed and working, and ask the seller to demonstrate it.
Is hydrovac a good business to start?
It depends on local demand from utility, pipeline, telecom and excavation contractors, and on whether you can keep a unit busy. Talk to the contractors you would work for, price operating costs such as fuel, disposal and crew, and buy the configuration your first contracts need.
Can you finance a used hydrovac truck?
Used hydrovac trucks are commonly financed through third-party lenders, who weigh the unit's age, hours and condition along with your business. Requirements vary by lender. See hydrovac truck financing for what lenders look at.
Can you lease a hydrovac truck?
Some lenders offer leases on hydrovac trucks alongside loans. Which fits depends on how long you will run the unit and what you want at the end of the term. See equipment leasing vs financing to compare the two.
Use this with any seller, and compare answers side by side.
Buying checklist
Fit for your work
- Seller understands the digging you do and where you do it
- Debris and water capacity suit your typical job
- Cold-weather equipment is included if you need it
Condition
- Hours on pump or blower and chassis
- Repair history and any rebuilds
- Boom, hoses and controls demonstrated
- Debris body interior and door seals inspected
Package and support
- Tools and accessories included
- Delivery and training
- Warranty terms, or confirmation of as-is sale
- Nearest qualified service and parts support