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⛲ Well Drilling

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Well drilling is one of the most consequential decisions a property owner can make — a properly sited, correctly cased, and adequately developed well can deliver clean water for 40-50 years, while a poorly executed one risks contamination, yield failure, or expensive remediation within a decade. The industry operates under a patchwork of state-level licensing regimes (most states require a licensed Water Well Contractor, separate from a general [Plumbing](https://contractorsplanet.com/?service=plumbing) license), groundwater-use permits issued by state water boards or regional groundwater management districts, and EPA guidelines governing casing materials, grouting depths, and sanitary seals. The six sub-services below organize well drilling by project type — new construction residential, commercial and agricultural scale, pump systems, maintenance and repair, water quality treatment, and specialty applications — so you can match your exact need to the contractors who specialize in it.

Q: Can I drill my own water well without hiring a licensed contractor?
In most U.S. states, drilling a potable water well without a licensed Water Well Contractor is illegal — and the consequences go beyond fines. An improperly cased or grouted well can allow surface contamination into the aquifer, potentially affecting neighboring wells and triggering EPA or state environmental enforcement. A handful of states allow landowners to drill their own wells on their own property for personal use, but even those states typically require filing a completion report and meeting casing and grouting standards. Beyond legal issues, residential mortgage lenders and title insurers almost universally require a licensed driller's completion report, so a DIY well can complicate resale. Check your state's water well licensing board before proceeding.
Q: What does a well drilling contractor charge per foot, and what drives the total cost?
Most residential drillers charge $15–$30 per foot of drilling depth, but that per-foot rate covers only the borehole. Casing (4-inch Schedule 80 PVC or steel) adds $8–$15 per foot of cased depth. Grouting adds $3–$8 per foot. A 300-foot residential well therefore runs roughly $7,800–$16,000 for drilling, casing, and grouting alone, before the pump, pressure tank, and electrical work. The biggest cost drivers are depth to the productive aquifer, rock hardness (air-rotary drilling in granite costs 40–60% more than cable-tool drilling in sand), rig mobilization distance, and local permit fees ranging from $50 to $800 depending on the state and county.
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Residential Water Wells
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Commercial & Agricultural Wells
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Well Pump Services
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Well Maintenance & Repair
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Water Quality Solutions
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Specialty Drilling & Services
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Well Drilling Hiring Guide

📖 Overview

[Residential Water Wells](https://contractorsplanet.com/?service=well-drilling&subcat=residential-water-wells) covers new well drilling and completion for single-family homes, rural properties, and hobby farms where municipal water is unavailable or undesirable. Most residential wells reach aquifers at 100-400 feet in the eastern U.S., while arid western states often require 300-800+ feet of drilling into fractured rock formations. Drillers use rotary or air-rotary rigs, install steel or Schedule 80 PVC casing to state-mandated depths, and grout the annular space with neat cement or bentonite to prevent surface water infiltration — a requirement enforced by state environmental agencies under EPA's Groundwater Rule. A complete new residential well including drilling, casing, grout, well development, and a basic pump typically runs $5,500-$18,000 depending on depth and geology.

[Commercial & Agricultural Wells](https://contractorsplanet.com/?service=well-drilling&subcat=commercial-agricultural-wells) scales up the scope to irrigation systems, livestock operations, light manufacturing, golf courses, municipalities, and multi-unit housing developments where yield requirements — measured in gallons per minute — far exceed the 3-10 GPM threshold adequate for a residence. Commercial and agricultural wells commonly require 6-inch to 12-inch diameter casings (versus 4-6 inch for residential), turbine pumps capable of 50-500+ GPM, and state-issued large-volume appropriation permits in prior-appropriation western states. Drilling depths can reach 1,500 feet or more in desert aquifer systems. Costs range from $15,000 for a shallow agricultural well to well over $200,000 for a high-capacity municipal supply well, with pump and electrical infrastructure often priced separately.

[Well Pump Services](https://contractorsplanet.com/?service=well-drilling&subcat=well-pump-services) handles the mechanical heart of every water well system — the submersible or jet pump, pressure tank, control box, and drop pipe that actually move water from the aquifer to your fixtures. Submersible pumps from Franklin Electric or Goulds (both industry standards) are sized in horsepower and GPM to match well yield and household demand; a 3/4 HP to 1.5 HP submersible handles most residential applications. Pump replacement requires a pump puller truck and is not a DIY task — pulling 300 feet of drop pipe and a 40-lb pump from a 6-inch casing requires rigging experience and proper equipment. Pump replacement alone runs $800-$3,500 installed; a full pump, pressure tank, and controls upgrade runs $1,500-$5,500. This work often overlaps with [Electrical](https://contractorsplanet.com/?service=electrical) for the 240V dedicated circuit and pressure switch wiring.

[Well Maintenance & Repair](https://contractorsplanet.com/?service=well-drilling&subcat=well-maintenance-repair) covers the diagnostic and corrective work needed after a well is in service — low yield rehabilitation, bacteria shock chlorination, well camera inspections, casing repair, and cap replacement to restore sanitary seal integrity. The NSF/ANSI 61 standard governs materials that contact potable water, and the EPA recommends annual water testing plus a periodic well checkup every 10 years. Shock chlorination — the standard treatment after a contamination event or pump pull — uses food-grade sodium hypochlorite introduced to the casing and recirculated through the system. Well camera inspections using a color downhole camera reveal collapsed casing, corrosion, or sediment buildup that explains yield loss. Costs run $150 for a basic chlorination to $5,000+ for full rehabilitation with hydrofracturing to restore fractured-rock aquifer yield.

[Water Quality Solutions](https://contractorsplanet.com/?service=well-drilling&subcat=water-quality-solutions) addresses the treatment side once water is at the surface — because private well owners are responsible for their own water quality under EPA's regulatory framework, which explicitly exempts private wells from the Safe Drinking Water Act's public-system standards. Common well water issues include iron (above 0.3 mg/L causes staining), hardness (above 120 mg/L causes scale), coliform bacteria, nitrates (EPA MCL of 10 mg/L for nitrate-nitrogen), radon, arsenic, and hydrogen sulfide. Treatment trains typically combine a whole-house sediment filter, iron and manganese oxidation filter (Birm or greensand media), water softener (Clack or Fleck valve brands are industry workhorses), and UV disinfection for bacteria. Reverse osmosis point-of-use systems address nitrates, arsenic, and radionuclides. Full treatment systems run $1,200-$8,000 installed, depending on contaminant load and system complexity. This work connects closely to [Water & Mold Remediation](https://contractorsplanet.com/?service=water-mold-remediation) when contamination involves flooding or surface intrusion.

[Specialty Drilling & Services](https://contractorsplanet.com/?service=well-drilling&subcat=specialty-drilling-services) encompasses applications beyond potable water supply: geothermal closed-loop bore fields for [HVAC](https://contractorsplanet.com/?service=hvac) ground-source heat pump systems (drilled to 150-400 feet per ton of system capacity), monitoring wells for environmental compliance and groundwater studies, dewatering wells for construction [Excavation](https://contractorsplanet.com/?service=excavation) and foundation projects, and well abandonment — the required plugging and grouting of unused wells under state regulations to prevent aquifer cross-contamination. Geothermal bore fields run $8,000-$30,000 for residential applications (4-6 bores typical). Environmental monitoring wells are typically 2-inch PVC and run $2,000-$6,000 per bore. Proper well abandonment by a licensed contractor costs $500-$2,500 per well and is legally required in virtually every state.

Choosing the right sub-service starts with knowing what you have — or don't have. If you're on a rural property with no water service, start with Residential Water Wells and get a hydrogeologic opinion on expected depth and yield before signing a drilling contract. If water pressure or flow has dropped suddenly, go directly to Well Pump Services; if it's been gradual, Well Maintenance & Repair and a camera inspection come first. Any change in taste, odor, or color warrants an immediate certified lab test (state health departments maintain lists of certified labs) before calling for treatment — Water Quality Solutions is only as good as the test driving it. For emergencies — total loss of water pressure in a home — call a pump service contractor first, as 80% of sudden failures are pump- or electrical-related, not wellbore problems, and most contractors can respond within 24 hours.

✅ What it covers

  • Site assessment and hydrogeologic evaluation before drilling
  • State water well permit application and groundwater appropriation permit where required
  • Rotary or air-rotary drilling to target aquifer depth (100–1,500+ feet)
  • Steel or Schedule 80 PVC casing installation with annular cement or bentonite grouting
  • Well development (surging and pumping to clear drill cuttings and develop yield)
  • Submersible or jet pump sizing, installation, and 240V electrical hookup
  • Pressure tank and control system installation and pressure-switch calibration
  • Annual water testing for bacteria, nitrates, pH, hardness, iron, and site-specific contaminants
  • Shock chlorination and disinfection after any pump pull or contamination event
  • Well camera inspection, rehabilitation, hydrofracturing, or abandonment plugging as needed

💵 Typical cost range

$500 to $200,000

Residential well drilling runs $15–$30 per foot drilled plus $1,500–$4,000 for casing, grouting, and development — a 300-foot well totals $6,000–$13,000 before the pump. Adding a submersible pump, pressure tank, and controls adds $1,500–$4,000. Commercial and agricultural wells start at $15,000 and reach $200,000+ for deep or high-yield municipal supply wells. Pump replacement alone runs $800–$3,500 installed. Water treatment systems cost $1,200–$8,000 depending on contaminant profile. Geothermal bore fields run $8,000–$30,000 for residential. Well abandonment costs $500–$2,500 per well. Regional variance is significant: drilling in the rocky Northeast or arid Southwest costs 20–40% more than soft-sediment Midwest aquifers. Emergency pump service calls carry $150–$350 trip charges above standard labor rates.

🛡️ Hiring tips

  • Verify your driller holds an active state Water Well Contractor license — most states maintain online license lookup tools; drilling without a license is illegal and can void your property's title insurance or mortgage approval
  • Request a written drilling proposal that specifies estimated depth, casing material and diameter, grouting method, and a per-foot rate — vague verbal quotes routinely escalate 30–50% once drilling begins
  • Ask for the driller's completion report (required by most states and filed with the state geological survey) — it documents casing depth, static water level, yield in GPM, and pump setting depth for every future service call
  • Get a certified laboratory water test before committing to any treatment system — NSF/ANSI 60 and 61 certified treatment components are the minimum standard; avoid contractors who skip testing and sell you a system based on visual inspection alone
  • Confirm that pump wiring will be pulled by a licensed electrician or a well contractor with a pump installer endorsement — a mis-wired 240V submersible can burn out a $1,200 pump within weeks
  • For new drilling, get at least two bids and ask each contractor about local well logs from neighboring properties — experienced local drillers know the formation and can give tighter depth estimates than out-of-area rigs
  • Never pay more than 10–20% upfront on a drilling contract; the bulk of payment should be tied to well completion, development, and a passing yield test above your agreed minimum GPM threshold
  • If a contractor recommends well abandonment, ask to see the state's required abandonment permit and post-grouting inspection record — improperly abandoned wells are an EPA enforcement target and can create personal liability for the property owner

More frequently asked questions

How do I know whether to repair my existing well or drill a new one?
Repair first unless the wellbore itself is structurally compromised. Most yield failures and all sudden pressure losses are pump or electrical problems — a $800–$2,500 pump replacement solves them. Gradual yield decline that persists after pump replacement warrants a downhole camera inspection ($300–$600) to check casing integrity and a yield test. If the static water level has dropped due to regional aquifer depletion, hydrofracturing can sometimes restore yield for $1,500–$4,000. Drill a new well only when the casing has collapsed beyond repair, the aquifer has permanently failed, or the original well was too shallow to survive seasonal water table drops. A new well drilled nearby on the same property often taps a better formation than the original.
What is the difference between a submersible pump and a jet pump, and which is better for a deep well?
Jet pumps sit above ground and use a venturi ejector to lift water; single-pipe jet pumps work only to about 25 feet of suction lift, while deep-well jet pumps with a down-hole ejector reach 80–120 feet maximum — making them unsuitable for most drilled wells. Submersible pumps sit at the bottom of the well below the water surface, pushing water up rather than pulling it, which is far more efficient and allows operation at any depth. For any drilled well deeper than 25 feet, a submersible from Franklin Electric, Goulds, or Grundfos is the correct choice. Submersibles run quieter, last 10–15 years with clean water, and are unaffected by the pump-losing-prime problem that plagues shallow jet pumps.
Do I need a permit to drill a well, and will my homeowner's insurance cover well problems?
Yes — virtually every state requires a permit before drilling a new well, and many require a separate groundwater appropriation permit for wells exceeding a threshold yield (typically 25,000 gallons per day in western prior-appropriation states). Permit fees range from $50 in some rural counties to $800+ in regulated groundwater basins. Standard homeowner's insurance policies typically cover sudden and accidental damage to well pumps and pressure tanks (with a sub-limit of $500–$5,000 on some policies) but exclude gradual deterioration, drought-related yield loss, or contamination from your own property. Well-specific endorsements and separate equipment breakdown riders are available from carriers like Travelers and USAA. Always read the exclusions — bacteria contamination events are often excluded.
What warning signs indicate my well water quality is deteriorating before I get a lab test back?
Several sensory and mechanical clues precede a lab result. A rotten-egg smell indicates hydrogen sulfide from anaerobic bacteria or sulfur-bearing geology. A metallic taste or orange-brown staining on fixtures and laundry suggests iron above 0.3 mg/L or manganese above 0.05 mg/L — both EPA secondary standards. Cloudy or turbid water after rain events is a serious warning sign of surface-water infiltration through a compromised casing seal or sanitary cap, which can carry coliform bacteria. Slippery or slimy feel can indicate iron bacteria biofilm in the well. None of these symptoms replace lab testing — the EPA recommends a certified lab test annually for bacteria and nitrates as a baseline, with broader panels after flooding, nearby agricultural activity, or any work on the well.
What are the most common scams and red flags in the well drilling industry?
The most common scam is the low-ball per-foot quote that omits casing, grouting, and development costs — a driller advertising $12 per foot sounds cheaper than a competitor at $22 per foot until you realize the $12 quote doesn't include the $6,000 in casing and grouting that the $22 all-in quote covers. Always demand a written itemized proposal. A second red flag is pressure to sign before a site visit or without reviewing local well logs from neighboring properties — any experienced driller knows the local formation and should reference it. Unlicensed drillers operating without a state permit are a serious risk; verify the license number with your state's water well licensing board. Finally, avoid contractors who recommend expensive treatment systems before providing certified lab results — no ethical water treatment contractor sells a system without a baseline test.
What should I do if I turn on a tap and have completely no water — is it a well emergency?
Total loss of water is a pump or electrical failure until proven otherwise — statistically, roughly 80% of sudden no-water calls trace to a tripped breaker, failed pressure switch, burned pump motor, or broken drop pipe, not a wellbore problem. Start at the electrical panel: reset the breaker dedicated to the well pump (usually a 30–60 amp double-pole breaker). Check the pressure gauge on the pressure tank — if it reads zero and doesn't respond after the breaker reset, call a well pump service contractor. Most well service companies offer same-day or next-day emergency response; expect a $150–$350 emergency trip charge on top of labor. Do not repeatedly cycle the breaker if the pump doesn't start — running a dry submersible even briefly can overheat and destroy a motor that might otherwise only need a $50 control box capacitor.

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