Well Drilling Cost Calculator
Use this free well drilling cost calculator to instantly estimate the total cost of drilling a water well. Enter details like well depth, soil or rock type, casing requirements, and location to get an accurate cost estimate, including cost per foot, material and labor breakdown, and overall project budget.
Depth is the #1 cost variable — unknown until drilling begins · Check county well logs before budgeting · Always test water before use · Licensed driller required in all states · Permit required in all counties
Estimates based on 2026 US national average pricing from NGWA, HomeAdvisor, and EPA. Well drilling costs vary significantly by geology, water table depth, and contractor rates. Always get 3 quotes from licensed well drillers.
Understanding the Calculator Inputs
This calculator estimates total well installation cost across 8 variables. Well drilling costs in 2026 range from $1,500 for a shallow driven point well to $35,000+ for a very deep drilled well in hard bedrock. The single biggest variable — depth — cannot be confirmed until drilling begins.
The Most Important Thing to Understand About Well Cost
Well drilling is priced per foot — typically $15–$55 per foot for the drilling itself, plus fixed costs for mobilization, casing, pump, pressure tank, electrical, and hookup. A well requiring 300 feet of drilling costs roughly twice as much as one requiring 150 feet. The per-foot rate also increases in hard rock vs soft formations because hard rock drilling is slower and wears equipment faster.
How to Estimate Your Expected Depth
- Ask neighbors — the single most reliable source. Find out the depth and yield (gallons per minute) of wells on adjacent properties.
- County well log database — most US states maintain a public database of every permitted well with depth, yield, and water quality data free.
- State geological survey maps — show aquifer depths by county and formation type.
- Hydrogeological report — costs $500–$1,500 but worth it for properties with uncertain water tables or known contamination.
Legitimate well drillers quote a per-foot rate, not a fixed total price — because they genuinely don't know how deep they'll need to drill until they hit a productive aquifer. Be cautious of any driller who quotes a flat price without knowing your depth. Always get 3 per-foot quotes and ask each driller about local average depths.
3 Real-World Well Drilling Examples
Example 1 — Shallow Drilled Well (100 ft, Sandy Soil, Midwest)
Rural Midwest property, shallow water table at 80–100 ft, sandy aquifer, easy access, standard drilled well with steel casing and submersible pump.
| Item | Low | High | Notes |
|---|---|---|---|
| Drilling (100 ft x $18–$30/ft) | $1,800 | $3,000 | Sandy formation, easy drilling |
| Steel casing (6", 100 ft) | $600 | $1,500 | Standard 6" steel schedule 40 |
| Well screen + gravel pack | $300 | $600 | Bottom 10 ft screened |
| Submersible pump (1/2 HP) | $600 | $1,200 | Franklin Electric standard |
| Pressure tank + controls | $600 | $1,500 | 32-gallon tank |
| Electrical (240V circuit) | $400 | $900 | Dedicated pump circuit from panel |
| Pitless adapter + wellhead | $200 | $400 | Connects well below frost line |
| Permit + basic water test | $300 | $600 | County permit + bacteria/nitrate test |
| Total — rural Midwest (0.85x) | $3,400–$6,980 · ~$34–$70/ft all-in | ||
Real-world note: This is the best-case well scenario. Always request a yield test during drilling. A well producing less than 1 GPM requires a storage tank system, adding $1,500–$3,000. Ask your driller to pump at maximum rate for at least one hour and record the recovery rate before wrapping up.
Example 2 — Average Drilled Well (175 ft, Mixed Soil/Rock, Southeast)
Suburban Southeast property, mixed clay/rock, approximately 175 ft to primary aquifer. Standard drilled well with steel casing, 1 HP submersible, full pressure system, basic water test.
| Item | Low | High | Notes |
|---|---|---|---|
| Drilling (175 ft x $25–$45/ft) | $4,375 | $7,875 | Mixed clay/rock, standard rate |
| Steel casing (6", 175 ft) | $900 | $2,200 | Full-depth steel schedule 40 |
| Well screen + gravel pack | $400 | $800 | Screened section at production zone |
| Submersible pump (1 HP, 175 ft head) | $900 | $2,000 | 1 HP handles lift head at this depth |
| Pressure tank + controls + wiring | $900 | $2,200 | 44-gallon tank, pressure switch, gauge |
| Electrical (dedicated 240V circuit) | $500 | $1,200 | From main panel to well and tank |
| Pitless adapter + wellhead cap | $250 | $500 | Below-frost-line connection to house |
| Permit + basic water test | $400 | $800 | County health department permit |
| Total — average US market | $8,625–$17,575 · ~$49–$100/ft all-in | ||
Real-world note: At this depth range, pump sizing matters — a pump rated for 150 ft head on a 175 ft well will underperform and wear out faster. Confirm pump specifications match actual well depth plus the vertical rise to the pressure tank. Request the pump model number and verify specifications before accepting job completion.
Example 3 — Deep Hard Rock Well (320 ft, Granite Bedrock, Northeast)
Rural New England property, granite bedrock, 280 ft of rock drilling to reach a productive fracture zone. Full water treatment system, full water quality panel. Massachusetts market (1.35x).
| Item | Low | High | Notes |
|---|---|---|---|
| Rock drilling (320 ft x $40–$65/ft) | $12,800 | $20,800 | Granite — slow, wears drill bits faster |
| Steel casing (50 ft surface section) | $800 | $1,800 | Rock wells cased through overburden only |
| Well development (surge + bail) | $500 | $1,200 | Required in bedrock wells to open fractures |
| Submersible pump (1.5 HP, 320 ft) | $1,200 | $3,000 | Higher HP needed for greater lift head |
| Full pressure system + controls | $1,000 | $2,500 | Larger tank for bedrock well storage buffer |
| Full water treatment (iron + softener) | $2,500 | $6,000 | Granite aquifer often has iron and hardness |
| Full water quality panel (40+ tests) | $350 | $800 | Arsenic, radon, VOCs common in granite |
| Electrical + permit | $800 | $1,800 | Permit required; state oversees bedrock wells |
| Total with 1.35x Northeast multiplier | $26,933–$51,165 | ||
Real-world note: In granite, drillers sometimes reach 400+ feet without hitting a productive fracture — a "dry hole" where you still pay for all drilling. Before committing to a bedrock site, ask the driller: "What is your dry hole rate and what depth do you typically find productive fractures?" Granite wells commonly produce water with elevated arsenic, radon, and manganese — a full water quality panel is non-negotiable before drinking any New England bedrock well water.
Well Drilling Cost Breakdown by Category
Where the money goes for a typical 150 ft drilled well with steel casing, submersible pump, standard pressure system, and average terrain in 2026.
| Category | % of Total | Typical Cost Range | Notes |
|---|---|---|---|
| Drilling (per foot) | 35–50% | $15–$65/ft drilled | Hard rock costs more per foot; sandy soil less |
| Well Casing | 10–18% | $600–$4,000 | Steel most common; stainless in corrosive areas |
| Well Screen & Gravel Pack | 4–8% | $300–$1,200 | Filters sediment; not used in solid bedrock wells |
| Submersible Pump | 12–20% | $600–$4,000 | Size increases with depth — 1 HP for most 150–250 ft wells |
| Pressure Tank + Controls | 8–14% | $600–$2,500 | Larger tank = fewer pump cycles = longer pump life |
| Electrical (dedicated circuit) | 5–10% | $400–$2,000 | 240V dedicated circuit, disconnect, wiring to panel |
| Pitless Adapter + Wellhead | 3–6% | $200–$800 | Below-frost-line connection from well to house line |
| Permits + Water Test | 3–6% | $300–$1,500 | Permit required; water test required by most lenders |
Well Depth & Cost by US Region (2026)
| Region | Avg Depth | Formation Type | Typical All-In Cost | Notes |
|---|---|---|---|---|
| Great Plains / Midwest | 50–150 ft | Sand/gravel | $3,500–$12,000 | Shallow aquifers, lower cost |
| Southeast | 100–200 ft | Sand/limestone | $5,000–$16,000 | Good water availability, moderate cost |
| Pacific Northwest | 150–300 ft | Mixed | $8,000–$22,000 | Variable geology; some volcanic rock |
| Southwest / Arid West | 200–500 ft | Hardpan/rock | $12,000–$35,000 | Deep water tables, hard drilling |
| Northeast (New England) | 150–400 ft | Granite bedrock | $12,000–$45,000 | Hard rock drilling most expensive; arsenic risk |
| Appalachian / Mountain | 100–300 ft | Fractured rock | $7,000–$28,000 | Rocky terrain; fracture depth unpredictable |
| Florida / Gulf Coast | 50–150 ft | Limestone/sand | $4,000–$14,000 | Shallow but saltwater intrusion risk near coast |
Most US states maintain a public database of every permitted well including depth, yield in GPM, and sometimes water quality data. Search "[your state] well completion report database" or "[your state] groundwater well log" to access neighboring property records free. This is the most reliable resource for estimating your expected depth before hiring a driller.
Well Type Guide
| Well Type | Depth Range | Cost Range | Lifespan | Best For | Avoid When |
|---|---|---|---|---|---|
| Drilled Well | 50–1,000 ft | $5,000–$35,000 | 30–50 yrs | Primary home water — most reliable | Nothing — always the best choice |
| Driven Point Well | 15–50 ft | $1,500–$5,000 | 10–20 yrs | Sandy soil, secondary/seasonal use | Primary home water — contamination risk |
| Bored / Dug Well | 10–50 ft | $1,500–$6,000 | 20–30 yrs | Large diameter, high yield in shallow aquifer | Areas with surface contamination risk |
| Artesian Well | 100–500 ft | $8,000–$28,000 | 40–60 yrs | Pressurized aquifer — may not need pump | Areas without confirmed artesian zone |
| Geothermal Well | 150–400 ft | $10,000–$32,000 | 25–50 yrs | Ground-source heat pump — not water supply | Never as a water supply well |
Driven point and dug wells are shallow (under 50 ft) and vulnerable to bacteria (E. coli, coliform), nitrates from agriculture and septic systems, and drought. For a full-time home's primary water supply, a professionally drilled well reaching a deep, confined aquifer is the only reliable long-term option. The higher upfront cost buys 30–50 years of reliable, clean water with minimal maintenance.
Well Maintenance & Lifespan
| Task | Frequency | Cost | Why It Matters |
|---|---|---|---|
| Annual water quality test | Every year | $50–$300 | Bacteria and nitrates are odorless — only testing reveals them |
| Pressure tank inspection | Every 3–5 yrs | $100–$250 | Check bladder pressure; failed bladder causes short-cycling |
| Pump replacement | Every 10–15 yrs | $800–$3,000 | Submersible pumps wear out — budget proactively |
| Pressure tank replacement | Every 10–15 yrs | $500–$1,500 | Bladder tanks eventually fail — usually detectable by symptom |
| Well shock chlorination | As needed | $100–$500 | After flooding, power outage, or positive bacteria test |
| Wellhead inspection | Every 2–3 yrs | $50–$150 | Check for cracks, animal intrusion, pooling around casing |
| Casing camera inspection | Every 10 yrs | $200–$700 | Identifies cracks, corrosion, or sediment before failure |
Unlike municipal water — tested thousands of times per year under federal EPA oversight — private well water is tested only when the owner chooses. Bacteria, nitrates, arsenic, and other contaminants are colorless, odorless, and tasteless. Annual testing costs $50–$300. Many state health departments offer free or subsidized testing kits — check your state's environmental or health department website.
Well Water vs Municipal Water — Cost Comparison
| Factor | Private Well | Municipal Water |
|---|---|---|
| Upfront cost | $5,000–$35,000 (one time) | $0–$5,000 (tap/connection fee) |
| Monthly cost | $0 (electricity only ~$20–$50/mo) | $30–$150/month ongoing |
| 10-year total cost | $8,000–$40,000 (incl. maintenance) | $3,600–$18,000 (bills only) |
| 20-year total cost | $10,000–$50,000 (incl. pump replacement) | $7,200–$36,000 (bills only) |
| Water quality control | You control treatment | Municipal controls treatment |
| Drought vulnerability | Some risk (shallow wells) | Minimal — municipal supply buffered |
| Power outage | No water without generator | Usually unaffected |
| Property resale | Neutral or slight negative vs municipal | Slight positive in most markets |
For properties where municipal water connection costs exceed $10,000–$15,000 (common in rural areas), a private well is almost always the better financial choice over 20+ years. For properties within easy reach of municipal service, compare connection fee + monthly bills vs well installation + maintenance + pump replacement before deciding.
Common Well Drilling Mistakes
Not Researching Local Well Logs Before Budgeting
Every state maintains a free database of permitted wells with drilling depths, yields, and water quality. Checking neighboring well logs takes 20 minutes and tells you the expected depth range, production zone, and water quality issues before you budget or hire anyone.
Hiring an Unlicensed Driller to Save Money
An unlicensed driller cannot pull the required permit — making your well illegal, unable to pass lender inspection, and without regulatory oversight. Always verify your driller's state license number before signing any contract.
Skipping Water Testing After Drilling
After drilling, the well must be shock-chlorinated, allowed to clear, then tested before use. Coliform bacteria contamination from drilling disturbance is odorless and can cause serious illness. This process takes 24–72 hours. If your driller suggests just "running the water for a while," find a different driller.
Undersizing the Pressure Tank
A pressure tank that's too small causes the pump to short-cycle — turning on and off rapidly — reducing pump lifespan from 10–15 years to 2–3 years. For a 10 GPM pump, the minimum is a 40-gallon tank. Bigger is almost always better for pressure tank sizing.
How We Estimate Costs
Formula: Total = (Drilling $/ft x Depth + Fixed Mobilization) x Terrain Multiplier + Casing + Pump + Pressure System + Water Test x Location Multiplier. Terrain multiplier: 0.90x easy, 1.00x average, 1.30x difficult. Location multiplier: 0.85–1.50x based on RSMeans geographic labor cost differentials.
Pricing sources: National Ground Water Association (NGWA) well drilling cost surveys 2026, contractor bid data from rural property databases, EPA private well guidance, and state water agency published cost guidelines. Reviewed April 2026. All costs represent the 20th–80th percentile of actual contractor bids.
Frequently Asked Questions
- National Ground Water Association (NGWA) — Well Drilling Cost Survey 2026 — Industry-standard cost data for residential well drilling including per-foot drilling rates by formation type, casing material pricing, pump and pressure system costs, and regional cost differentials. Primary source for per-foot rate ranges. NGWA, 2026.
- HomeAdvisor True Cost Guide 2026 — Residential well installation cost data by well type, depth, and US region. Used for cross-validation of contractor pricing ranges and regional cost comparisons. HomeAdvisor / Angi, 2026.
- US Environmental Protection Agency (EPA) — Private Drinking Water Wells — Federal guidance on private well construction standards, water testing requirements, recommended contaminants to test for by region, annual testing recommendations, and setback requirements. Referenced throughout the water testing and maintenance sections. EPA Office of Water, current edition.
- US Geological Survey (USGS) — Groundwater Resources of the United States — Regional aquifer depth data, formation type maps, and water table depth information by state. Source for the aquifer depth and formation type data in the Well Depth by Region table. USGS Water Resources Division, current edition.
- RSMeans Building Construction Cost Data 2026 — Unit cost data for well casing installation, pump installation, electrical connection, and pressure tank installation. Used for cross-validation of component pricing ranges. RSMeans / Gordian, 2026.
- Massachusetts Department of Environmental Protection — Private Well Standards — State-specific well setback requirements, casing depth requirements, grouting specifications, and water testing requirements referenced in the New England bedrock well discussion and setback FAQ. MassDEP, current edition.
- National Rural Water Association (NRWA) — Private Well Owner's Guide — Guidance on well maintenance intervals, annual water testing, pump replacement cycles, pressure tank sizing, and shock chlorination procedures. Referenced throughout the maintenance section and FAQ answers. NRWA, 2025.
Cost estimates reflect 2026 US national average pricing. Well drilling regulations, permit requirements, and setback distances vary by state and county — always verify with your local health department or state water resources agency before drilling. ConstructlyTools does not have a paid relationship with any contractor, equipment manufacturer, or testing laboratory mentioned on this page.