Short answer: hydro excavation cost comes down to time. You pay for how long our truck and crew are on your site. Depth and soil set most of that, and then frozen ground, access, and the amount of spoil we have to haul off add to it. Exposing one utility with a quick pothole? Short visit. A long trench through frozen clay can run a full day or more.
Flat prices for hydrovac work are rare. What we can give you is a straight answer on what moves the number, then an accurate quote once someone has looked at the job. Contractors call us about hydro excavation services, and so do municipalities and homeowners. Here’s how we walk them through it.
How Is Hydro Excavation Cost Calculated?
Hydro excavation cost is usually figured out based on the time the hydrovac truck and crew spend on your job. We bill that by the hour or by the day, plus any minimum charge, travel to the site, and disposal of what comes out of the ground. Exposing one gas line or trenching for a new water service, the method doesn’t change. The scope of the dig sets the bill.
The truck does the heavy lifting. Pressurized water breaks up the soil, and a strong vacuum pulls the slurry into a debris tank. Nobody’s on site with a backhoe or hand digging with shovels, and the dirt never piles up beside the hole. We run it with fewer people than a conventional dig. That saved time is a big reason hydrovac often comes in lower than people expect once you count the whole job.
Before you compare quotes, we’d ask any contractor three questions. Hourly or daily billing? Is there a minimum? And is disposal in the price, or extra?
The Five Things That Raise or Lower the Price
Most of the difference between a small invoice and a large one comes from a short list of conditions on site.
- Depth and volume: Exposing a utility a few feet down is quick work. A deep or long excavation means more soil to cut and more loads to vacuum, which means more hours.
- Soil type: Loose sandy soil cuts and vacuums fast. Heavy clay, packed fill and rocky ground slow the water down, and the job takes longer.
- Frozen ground: A Green Bay winter changes the job. We use heated water under high pressure to break through frozen soil, which still beats chipping at frost with machinery, though it takes more time than the same dig in July.
- Access: A truck that can park beside the hole works efficiently. Long hose runs across a yard, tight alleys, and restricted job sites add setup time.
- Disposal: Every load in the debris tank has to be emptied somewhere. How much material comes out, and where it can legally go, adds to the cost.
Is Hydro Excavation Cheaper Than Traditional Digging?
Often it is, as long as you look at the whole job and not just the hourly rate. Hydrovac takes a smaller crew and less time than hand digging around utilities, and you’re left with a clean site. The bigger thing is risk. Water and vacuum sharply cut the chance of hitting a gas, water, or electrical line, and nobody budgets for that one until it happens.
| Feature | Hydro Excavation | Traditional Digging (Backhoe/Hand) |
|---|---|---|
| Utility Strike Risk | Near Zero (Water & Vacuum) | High near buried lines |
| Crew Required | 1–2 Operators | Multi-person hand crew |
| Site Damage | Minimal footprint | Large spoil piles & lawn tear-up |
| Cleanup Cost | Built into vacuum tank haul-off | High (re-grading, turf replacement) |
In open ground, a backhoe moves a lot of dirt fast. Put it near buried utilities, though, and it can’t work freely, so the crew winds up hand digging the last few feet to stay safe. We handle that careful part with water and vacuum. On a hydrovac job, the precise work and the fast work are the same work.
Then there’s cleanup, the saving people forget about. Debris goes straight into the tank. No spoil pile to load out later, and far less to restore afterward, whether that’s lawn and landscaping or pavement.
What Kind of Jobs We Use Hydrovac For
Our hydrovac jobs mostly fall into a handful of groups. Each one runs on its own clock:
- Daylighting and Potholing: Our shortest visits. We expose a buried utility so it can be seen and located exactly, usually because someone is about to bore or dig near it.
- Trenching: Digging paths for pipes and cables runs longer, and the length determines the cost.
- Directional Drilling Support: We back up directional drilling and new utility installs.
- Water Line Installs & Inventory: We handle water line installation and repairs. We also do water service inventory, where a crew needs to see what a service line is made of without tearing up the yard.
- High-Pressure Clearing: Plenty of what we dig ties back to plumbing. Some lines don’t need digging at all, just clearing, and high-pressure hydro jetting takes care of that with no excavation. (Note: Sewer line damaged and due for replacement? Read whether trenchless pipe repair is worth it for your situation before anybody opens a trench.)
How to Get an Accurate Price for Your Project
Want a real number quickly? Describe the job well. We’ll want to know what needs exposing or digging, and roughly how deep and how long it runs. Additional details can help, for example, if the ground is frozen, or where the truck can park. Photos help.
From there, we’ll tell you how the job gets billed and what to expect, and if you approve, we will put you on the schedule. Van Rite Plumbing covers Green Bay, Appleton, Kimberly, Neenah, Sheboygan, and the greater Fox Valley. Our hydro excavation crews take residential and commercial jobs, and municipal work too. On larger projects, ask about financing.
Curious about Van Rite Plumbing and the rest of our services? Have a look around, or just call us and we’ll talk through your dig.
Hydrovac Pricing: What Our Customers Ask
Why can't you give me a flat price over the phone?
Because the same hole can eat up very different hours from one site to the next. Depth, soil, frost, and access all affect it. This the proper details we can use to give you a more accurate quote.
Do I pay for the truck's travel time?
Usually, yes. Ask if travel or mobilization is built into the quote; otherwise, you’re not comparing contractors on even ground.
Does winter digging cost more?
It can, as frost cuts slower even with heated water, and you’re paying for time. In a lot of cases, breaking it up with machinery is slower still, and a bigger mess.
Is hydro excavation worth it for a homeowner?
If you’re digging near gas, water, or electrical lines, often yes. Hitting a utility costs far more than a careful dig. Your yard also comes out of a hydrovac job in much better shape.
What happens to the dirt?
The dirt is extracted into the truck. We vacuum it into the debris tank as we dig, then haul it off for disposal, and that disposal is part of what the job costs.
Can I schedule hydro excavation before a boring or drilling job?
Yes. We’d recommend it, actually. Potholing first exposes the utilities, so the drilling crew knows exactly where the lines run before they start. Call us with the bore path, and we’ll plan the dig around it.
