How Much Does New Well Installation Cost?
How much does new well installation cost? The honest answer is that it depends on three things more than anything else: how deep the drill has to go to reach reliable groundwater, what kind of ground sits between your yard and that aquifer, and what pump system you need to move the water into your house. Anyone who quotes you a firm number before knowing those three things is guessing. This guide walks through each cost factor in plain English, shows you which side of each one your property sits on, and explains exactly how to get a real number for your own well. By the end, you will know what to ask and what a trustworthy quote looks like.
What Drives the Cost of New Well Installation
Well drilling is priced by the conditions on your land, not by a menu. Here are the factors that matter, and how to tell where you stand on each.
Depth to reliable water
Most well drilling is billed by the foot, so depth is the single biggest lever on your total. A well that hits a strong aquifer at a shallow depth costs a fraction of one that has to keep going through dry layers. Around Gresham and the east Portland metro, depth varies from one property to the next, sometimes even between neighbors. The best clue you have is nearby wells. Oregon keeps public well logs for drilled wells, and a driller who works this area can pull the logs near your address before anyone quotes a price. An aquifer and well depth assessment before drilling turns the biggest unknown into a smaller one.
Ground conditions and geology
What the drill bit passes through matters almost as much as how far it goes. Soft soil and loose gravel drill fast. Hard basalt, which is common on the east side of the metro, drills slower and wears equipment harder, and that shows up in the price. Some ground also caves in as you drill, which forces the crew to case the hole as they go. You cannot see your geology from the surface, but nearby well logs and a driller's local experience tell the story. Ask any well drilling company near me search turns up whether they have drilled in your specific area before, and what they hit.
Casing and well construction
Every drilled well needs casing, the pipe that lines the hole and keeps it from collapsing, plus a sanitary seal near the surface to keep contamination out. Deeper wells need more casing, and unstable ground can require casing further down the hole than stable rock would. Oregon sets construction standards for how wells must be built and sealed, so this is not a corner anyone should cut. When you compare quotes, check how much casing each one assumes and what happens to the price if the actual hole needs more.
The pump system
Drilling the hole gets you to the water. A pump system gets the water to your kitchen sink. Most modern wells use a submersible pump that sits down in the well, and the pump has to be sized to your well's depth and your household's demand. A deeper well needs a stronger pump and more wire and pipe to reach it, which raises the price. On top of the pump itself you have a pressure tank, a control box, and the trench and plumbing that connect the wellhead to the house. Well pump installation is often quoted separately from drilling, so make sure any number you compare includes both.
Site access and distance to the house
A drill rig is a big machine. If it can park next to the drilling spot on firm, open ground, setup is simple. If the spot is up a soft slope, behind trees, or far from where the truck can reach, the job takes longer and costs more. Distance from the wellhead to your house matters too, because someone has to trench a water line and power line across that gap. Walk your property and look at it the way a driver would. If you can picture a large truck getting to the spot easily, you are on the cheaper side of this factor.
Permits, testing, and water treatment
Oregon requires drilled wells to be permitted and logged with the state, and a legitimate well drilling company handles that paperwork as part of the job. After the well is in, well water testing tells you what is actually in your groundwater. Most well water in this area is good, but if testing finds iron, hardness, or bacteria, treatment equipment adds to the total. Budget for the test either way. It is a small line item that protects the whole investment.
Cost Factor Table
| Factor | Pushes the price down when… | Pushes it up when… |
|---|---|---|
| Depth to water | Nearby well logs show reliable water at shallower depths | The aquifer sits deep, or the first water-bearing layers are weak |
| Geology | The drill passes through softer soil and stable rock | The hole runs through hard basalt or caving ground |
| Casing needs | Stable rock lets casing stop higher in the hole | Unstable ground requires casing much further down |
| Pump system | A shallower well allows a smaller pump with less wire and pipe | Depth or high household demand calls for a stronger pump and more materials |
| Site access | The rig can park on firm ground right at the drilling spot | Slopes, trees, or soft ground make access slow and difficult |
| Distance to house | The wellhead sits close to the home, keeping the trench short | A long trench for water and power runs across the property |
| Water quality | Testing comes back clean and no treatment is needed | Iron, hardness, or bacteria call for treatment equipment |
How to Get an Accurate New Well Installation Cost Estimate
You do not need to guess, and you should not trust a number pulled from a chart online. A real estimate for new well installation starts with your specific property. Here is how to get one.
Have this information ready before you call:
- Your address, so the driller can pull nearby well logs from Oregon's public records
- Where you think the well could go, and how a rig would get to that spot
- How the water will be used: one household, irrigation, livestock, or a commercial property
- Rough distance from the likely wellhead to the house or building
A good quote spells out the assumed depth and the price per foot beyond it, how much casing is included, whether the pump system and pressure tank are in the number or quoted separately, who handles the permit and state well log, and whether well water testing is included. If a quote is a single number with no assumptions listed, you cannot compare it to anything, and you cannot hold anyone to it.
Estimates differ between providers for honest reasons and dishonest ones. Honest reasons: different depth assumptions, different casing allowances, different pump equipment. Dishonest reasons: leaving the pump out of the headline number, or lowballing depth knowing the per-foot overage will make up the difference. Ask each driller what happens to the price if the well runs deeper than assumed. The answer tells you a lot about who you are dealing with.
Ways to Keep the Cost Down
There is no coupon for well drilling, but there are real levers.
- Check the well logs first. Nearby logs are free public records in Oregon. Knowing the likely depth before you commit removes the worst surprise and helps you judge whether a quote's assumptions are realistic.
- Pick the well site with the driller. A spot the rig can reach easily, close to the house, cuts both drilling setup and trenching. Moving the planned wellhead a modest distance can change the price without changing the water.
- Get two or three itemized quotes. Not to grind the lowest bidder down, but to see where the assumptions differ. The outlier quote usually reveals a missing line item or a padded one.
- Size the pump to your real needs. Bigger is not better. A pump matched to your household demand costs less up front and lasts longer, which delays the day you are searching for well pump replacement.
- Do not skip the water test. Finding a water quality problem after the plumbing is finished costs more than finding it before. Testing up front lets you plan treatment once instead of retrofitting it.
Cost Questions People Ask
How much does well drilling cost per foot?
Per-foot pricing is how most well drilling is billed, but the rate varies with geology, casing needs, and the size of the well. That is why two properties a few miles apart can land on different totals. Ask for the per-foot rate in writing, along with what is included in it and what gets billed on top.
What does well pump replacement cost compared to a new well?
Well pump replacement is a much smaller job than drilling, since the hole and casing already exist. The price of a submersible well pump replacement depends on the pump's depth in the well, the pump size your household needs, and whether the wiring, drop pipe, or pressure tank need replacing too. If your existing well still produces water, well pump repair or replacement is usually the first thing to rule out before anyone talks about drilling.
Is there a well drilling cost calculator that actually works?
Online calculators can only average other people's wells, and your price rides on your depth and your geology. The closest thing to a real water well drilling cost calculator is a driller who pulls the well logs near your address and walks your site. That takes a phone call instead of a click, but the number it produces is one you can actually budget against.
Does homeowners insurance or financing cover a new water well?
Insurance rarely covers a planned new well, though it sometimes covers damage to an existing well from a covered event, so read your policy. Many homeowners fold well costs into construction or land loans when building, and some lenders offer improvement financing for existing homes. Ask your driller whether they offer payment options before assuming you have to pay everything at once.
The Bottom Line
The cost of a new water well comes down to depth, ground conditions, and the pump system, and none of those can be read off a generic chart. Pull the nearby well logs, get two or three itemized quotes from a local well drilling company that knows Gresham-area ground, and compare the assumptions rather than just the totals. The right number is the one built from your property, not someone else's.
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.