How Much Does Hiring a Well Driller Cost?
How much does hiring a well driller cost? The honest answer depends on three things more than anything else: how deep the rig has to go to reach usable groundwater, what kind of ground it has to drill through to get there, and how much of the finished system you are paying for beyond the hole itself. Around Gresham and the rural edge of Clackamas and Multnomah counties, those three factors can make two wells a mile apart cost wildly different amounts, which is why any page quoting you a single figure is guessing. This guide walks through what actually drives the price of well drilling, so by the end you will know exactly what to ask and how to get a real number for your property.
What Drives the Cost of Hiring a Well Driller
Most well drilling bids are built from the same handful of variables. Here is what each one is, which way it pushes the price, and how to figure out where your property sits.
Depth to water
Drillers price much of the job by the foot. The deeper the aquifer under your land, the more footage you pay for, plus more casing, more drilling time, and often a stronger pump to lift the water. Depth is the single biggest swing in most well drilling quotes.
You cannot see depth from the surface, but you can get close without guessing. Oregon keeps public well logs, records drillers file for every well they complete. Logs from wells near you show what depths neighbors hit water at, and a local driller who works around Sandy, Boring, Damascus, or Corbett will already know the pattern in your area. An aquifer and well depth assessment before drilling turns that guess into a plan.
Drilling through rock and soil layers
Soft soil drills fast. Hard rock and mixed layers drill slow, wear equipment, and sometimes call for a different drilling method entirely. The east Portland metro sits on varied ground, from softer sediment to volcanic rock, and the mix under your parcel affects both the per-foot rate and how long the rig is on site. Nearby well logs tell this story too: they record every layer the driller passed through, not just where the water was.
The pump and pressure system
The hole is only half the job. To get well water to your faucet you need a well pump sized for your depth and household demand, a pressure tank, wiring, and controls. A deeper well needs a more powerful pump, which costs more to buy and install. Some quotes include the full pump system; others cover drilling only. This is one of the most common reasons two bids for the same well look far apart, so always check what the pump line covers.
Casing, sealing, and code requirements
Oregon requires wells to be properly cased and sealed to protect the groundwater from surface contamination. Casing is priced by the foot, so deeper wells carry more of it, and some ground conditions require extra sealing work. This is not a corner to cut. A well that fails inspection or contaminates the aquifer costs far more to fix than to build right, and the permit and sealing work should appear as clear line items on any honest quote.
Site access and distance to the house
The drill rig is a heavy truck. A well site on a flat gravel pad next to the driveway is cheap to reach. A site up a soft, narrow, or steep track may need extra prep work before drilling starts. Then there is the trench: water line and electrical have to run from the wellhead to your house, and a long run means more trenching, pipe, and wire. Walk your property and picture where the rig parks and how far the water travels. That distance shows up on the bill.
New well versus fixing what you have
Not every water problem needs a new well. If an existing well stopped producing, the cause is sometimes a failed pump, a bad pressure switch, or a clogged screen, and well pump repair or well pump replacement costs a fraction of drilling from scratch. A well inspection sorts this out before you commit. Drilling a brand new well is the most expensive answer, so make sure it is the right one first.
Cost Factor Table
| Factor | Pushes the price down when… | Pushes it up when… |
|---|---|---|
| Depth to water | Nearby well logs show shallow, reliable groundwater | The aquifer sits deep and needs more footage, casing, and pump power |
| Ground conditions | The rig drills through softer soil and sediment | Hard rock or mixed layers slow drilling and wear equipment |
| Pump and pressure system | A modest household demand allows a standard pump setup | Deep wells or high water demand require a larger pump and tank |
| Casing and sealing | Ground conditions need only standard casing and seal work | Extra sealing or specialty casing is required to protect the well |
| Site access and trenching | The rig parks close to the site and the house is nearby | Access needs prep work or the water line run is long |
| Scope of the job | Pump and well repair on an existing well solves the problem | You need a full new well drilled, cased, and equipped |
How to Get an Accurate Well Drilling Estimate
The fastest way to a real number is a site visit from a local well drilling company that knows your area's ground. Before you call, have a few things ready: your property address or tax lot number, any well logs or records from your parcel or the neighbors, roughly how many people the well needs to serve, and where you would like the wellhead relative to the house and septic system. Setbacks from septic fields are regulated in Oregon, so that last detail matters.
A good quote for hiring a well driller should spell out the per-foot drilling rate, an estimated depth based on local well logs, casing and sealing costs, the pump system and what it includes, trenching and hookup, permits, and water well testing. It should also say what happens if the well runs deeper or shallower than estimated, since nobody can promise the exact depth before the rig starts turning.
Estimates differ between providers for real reasons. One driller may run equipment better suited to the rock under your parcel. One quote may include the full pump installation while another covers drilling only. Some bids assume best-case depth while others quote the likely case. When two numbers look far apart, line up the scopes side by side before assuming one company is padding the price.
Ways to Keep the Cost Down
You cannot change the geology, but you do control several parts of the bill.
- Get an inspection before you assume you need a new well. If your water stopped, a well inspection may find a pump or pressure problem that well repair can fix for a fraction of a new well.
- Do the depth homework first. Pulling nearby well logs, or having a driller run an aquifer and well depth assessment, keeps you from siting a well in the worst spot on your parcel.
- Compare two or three itemized quotes. Not for the lowest number, but to see where scopes differ. A cheap bid that excludes the pump system is not cheap.
- Plan the well site with access and distance in mind. Placing the wellhead where the rig can reach it easily, within setback rules, and keeping the trench run short trims real cost.
- Maintain the well you build. Regular well water testing and periodic pump checks catch small problems before they become a pump replacement, or worse, a compromised well.
Cost Questions People Ask
What does water well drilling cost per foot?
Per-foot pricing is how most drillers structure a bid, but the rate depends on your ground and the rig, so no honest number exists without seeing the site. What you can do is ask each bidder for their per-foot rate, their depth estimate based on nearby well logs, and how the price adjusts if the actual depth differs. That gives you a comparable cost picture instead of a guess.
Does the price include the pump, or just the hole?
It depends on the quote, and this is the first thing to check. Some well drilling bids cover the complete system, drilling through pump installation and pressure tank; others stop at a cased, sealed well. Neither approach is wrong, but comparing a drilling-only price against a full-system price will mislead you.
Is it cheaper to repair my existing well than drill a new one?
Usually, yes, when repair is possible. Well pump repair, pump replacement, or cleaning a clogged well costs far less than drilling new, and a well inspection tells you which situation you are in. A new well only makes sense when the old one has run dry, collapsed, or become contaminated beyond fixing.
Why did my neighbor pay a different amount for their well?
Groundwater does not follow property lines evenly. Your neighbor may have hit water at a different depth, drilled through different layers, needed a different pump, or paid for a longer trench run. Their price is a useful reference point, and their well log is even more useful, but neither is your quote.
The Bottom Line
The cost of hiring a well driller comes down to depth, ground conditions, and how much of the finished water system the quote covers, and none of those can be priced honestly from a website. Pull the well logs near your Gresham-area property, then get two or three itemized quotes from local drillers and compare scopes line by line. That is how you land on a real number instead of a hopeful one.
If you need well drilling, Clackamas Well Drilling can help.
Prefer to talk it through? Call (503) 782-5215 — a quick call is usually the fastest way to get a straight answer for your situation.