St. Charles County, MO
Hydrovac Excavation in Wentzville, MO

Hydrovac Excavation for your Wentzville property
Hydrovac excavation uses pressurized water and vacuum to dig without striking buried utilities. We run our own two hydrovac combo trucks for contractors, municipalities, utilities and property owners across the region.
- Potholing to verify utility location and depth
- Daylighting buried lines
- Slot trenching
- Pole and bollard holes
- Two hydrovac combo trucks of our own
FAQ
Frequently asked questions
How do I request hydrovac excavation in Wentzville?
Call 636-978-3478 or request a free quote. Include your service address in Wentzville, MO, and what you have noticed.
What is the first step for my Wentzville property?
We discuss the symptoms and access, then recommend the appropriate inspection, locating or service scope before quoting work.
What is hydrovac excavation?
Hydrovac excavation digs with pressurized water and a vacuum truck instead of a bucket, which greatly reduces the risk of striking buried utilities. GreenFlow runs two hydrovac combo trucks for potholing, daylighting and slot trenching.
How much does hydrovac excavation cost?
Hydrovac is $1,420 for a half day (4 hrs) or $2,560 for a full day (8 hrs) all-in, with overage at $355/hr. Mobilization within 30 miles of O'Fallon is included; your final price is confirmed in a written quote.
What is potholing?
Potholing exposes a small section of a buried utility so its exact location and depth can be verified before digging.
Why hydrovac instead of a backhoe?
Water and vacuum excavation greatly reduces the risk of damaging buried lines and keeps the hole tight.
Do you work with contractors?
Yes — contractors and municipalities are a big part of our hydrovac work. Call for a free quote.
Budget for Hydrovac Excavation in Wentzville
Budget calculator
Estimated work blocks
1 half day
$1,420–$1,710
- 1 half day × $1,420$1,420
Day rates: published GreenFlow rates. Work-block production: estimate. Schedule subject to availability.
Mobilization confirmed at quote
Client keeps spoils
Rates & terms
- Half day (4 hrs) $1,420 all-in ($355/hr); Full day (8 hrs) $2,560 all-in ($320/hr); hourly overage $355/hr.
- Includes operator, mobilization within 30 miles of O'Fallon, fuel and consumables. No fuel surcharge or trip fee.
- Overtime/after-hours 1.5×; Saturday 1.5×; Sunday/holiday 2×.
- Beyond 30 miles: standard hourly rate, portal-to-portal.
- Off-site spoils disposal: cost plus handling. Water if not available on site: at cost. Extra operator and hose runs over 100 ft: quoted per job.
- Client responsibilities: 811 locate request and permits, backfill/restoration, traffic control, contaminated material handling.
Estimate only; final price is confirmed in a written quote after camera inspection
Other services in Wentzville
Sewer & Drain CleaningClogged mains and slow drains cleared by cabling with our sewer auger.
Sewer Camera InspectionPush camera and crawler camera inspections, with video shared with you.
Line Locating & MappingLocate sewer and utility lines and map underground assets.
Sewer Line Repair & ReplacementSpot repairs and full line replacement, targeted using camera video.
Water Main Break HelpWater main or service line break? Call now for help.
Request a free quote in Wentzville
Call for a free quote — written quote before any work.
