Most people meet an excavation contractor because something has gone wrong, or because something has to go in before anything else can. Either way the question is the same: what does this involve, and do I need one?
What excavation covers
It is a broader trade than the digging part suggests. On any given week around Duluth and Superior it means:
- Utility work. Sewer and water connections from the house to the municipal main, which is its own discipline because of depth, permits and what sits above the line.
- Site preparation. Getting raw ground ready to build on. Clearing, stripping, cutting to grade, compaction.
- Foundation excavation. Digging to the engineered depth and shape, with walls that hold while the work happens.
- Driveways and hardscape. Base preparation that decides whether a driveway lasts five years or twenty five.
- Lot clearing. Trees, stumps, brush and the hauling that goes with it.
- Drainage. Deciding where water goes before anything gets poured on top of it.
When you need one, and when you do not
A fence post, a small garden bed, a shallow trench for low voltage cable. That is a shovel and a Saturday.
Where it stops being a weekend job is harder to see, and it is usually one of three things.
Depth. Once a trench is deep enough to stand in, it is deep enough to collapse. Shoring and sloping are regulated for good reason, and the ground around here does not always behave the way it looks like it will.
Utilities. Anything near a gas, electric, water or sewer line needs a locate before a bucket goes in the ground. That is free, and skipping it is how people end up on the news.
The public right of way. The strip between your property line and the street is not yours to dig, whatever your deed says about the boundary. Working there needs permits and, in most municipalities here, a bonded contractor. That requirement is the one that stops most homeowner projects dead, and it is covered in more detail in what you can and cannot do yourself.
What separates a good excavation job from a cheap one
Almost all of it is invisible once the ground is closed, which is exactly why it is worth asking about.
Compaction. Backfill that was dumped rather than compacted in lifts will settle. You find out in two years when the driveway cracks or the patio develops a low corner.
Grade. Water moves where the ground tells it to. A job that leaves the grade running toward the house has created a problem that will outlive the person who made it.
Restoration. Putting the surface back properly is part of the job, not a favour. Sod, asphalt, concrete, whatever was there.
Knowing what is down there first. On utility work that means a camera and the municipal map before a machine is booked, not after.
Residential and commercial are different animals
On a house, the job is usually one thing: a line, a foundation, a driveway. Scheduling is flexible and the site is yours.
On commercial work there are other trades waiting on you, inspections gating each stage, and a schedule where being two days late costs somebody else money. The digging is the easy part. Sequencing it is the job.
Working in Northland ground
Local conditions shape all of this more than people expect. Duluth is built on a hill, which gives shallow utility mains in a lot of neighbourhoods and rock closer to the surface than you would like. Cross to Superior and the ground changes: mains get much deeper, and the digging is a different proposition entirely.
That variability is why an honest excavation quote starts with looking rather than with a price per foot.
How to pick one
Four questions worth asking anybody, including us.
- Are you bonded for work in the right of way in this municipality?
- Who pulls the permits and arranges the locates?
- What does restoration include, and is it in the quote or added after?
- What have you not been able to see, and what happens if it turns out to be a problem?
We are a family run crew based in Duluth, working across the Twin Ports and northern Minnesota. If you are weighing up a job, the look is free on utility work and the conversation is free on everything else. Our excavation services page has the full list.