The cost to drill a well in NH is commonly $8,000-$20,000 for a complete residential system, with an average near $13,000. Depth, bedrock conditions, casing requirements, pump equipment, and the distance between the drill rig and the home account for much of the variation.
| Item | Low | Average | High | Notes |
|---|---|---|---|---|
| Drilling and well construction | $4,000 | $8,000 | $16,000 | Depth, casing, and geology affect the total |
| Pump and pressure equipment | $1,500 | $2,800 | $5,000 | Includes typical residential installation |
| Testing and water treatment | $200 | $900 | $3,000 | Basic tests cost less than treatment equipment |
| Complete residential well | $8,000 | $13,000 | $25,000 | Higher totals may apply to deep or difficult sites |
What a New Hampshire residential well usually costs
A drilled well serving a typical single-family home often costs $8,000-$20,000, including drilling, standard casing, a submersible pump, pressure tank, and basic connections. A practical planning average is about $13,000, but a shallow, productive well on an accessible lot may come in below that range. A deep well, difficult access, or specialized treatment can push the project above $25,000.
Drilling is often priced by the foot, with a rough planning range of $25-$65 per drilled foot for drilling and well construction. That is not always the complete installed price. Mobilization, casing, sealing, pump equipment, trenching, electrical work, and water testing may be quoted separately or included as line items. Assumptions: A standard single-family home, ordinary rig access, typical New Hampshire bedrock conditions, and no major water-treatment system.
For an ordinary, accessible home site, budgeting $10,000-$18,000 is a reasonable starting point before receiving a site-specific quote. A contractor cannot reliably promise the final price from a per-foot rate alone because the required depth and water yield are not fully known before drilling.
How drilling, casing, pump, and testing shape the quote
Quotes vary in what they include. One contractor may bundle mobilization and pump installation, while another lists them separately. The table shows common planning allowances for a residential project; individual line items may not add up to the full project total because packages, minimum charges, and site work differ.
| Quote item | Low | Average | High | Typical scope |
|---|---|---|---|---|
| Drilling and mobilization | $3,500 | $7,000 | $13,000 | Rig setup and drilling, often $25-$65 per foot |
| Casing and well seal | $800 | $1,800 | $4,000 | Steel casing and sealing, depending on overburden |
| Pump, tank, and controls | $1,500 | $2,800 | $5,000 | Submersible pump, pressure tank, and controls |
| Trenching and connections | $500 | $1,500 | $4,000 | Buried line and basic connection toward the home |
| Testing and treatment | $200 | $900 | $3,000 | Lab testing, disinfection, or basic treatment allowance |
Labor may be folded into drilling and installation rates rather than billed hourly. When a contractor does charge time separately, a planning rate of $75-$150 per hour may apply to service or installation labor, with a crew of two or more workers. Ask whether the quote includes the drill crew, pump installer, electrician, and plumber, or whether some trades will bill separately.
Compare the included scope, not just the per-foot drilling rate. A written estimate should identify casing, well cap, pump, pressure tank, electrical connection, trenching, water testing, and charges for extra depth. It should also explain what happens if the well produces too little water or needs additional work.
Why well depth and casing length change the price
New Hampshire wells commonly tap fractured bedrock, and the depth needed to find a dependable water supply varies even between nearby properties. A rough planning range for a residential drilled well is 150-400 feet, although some wells are shallower or substantially deeper. At $25-$65 per foot, another 100 feet can add roughly $2,500-$6,500 to a drilling-based quote, before considering pump or casing changes.
The depth of soil and loose material above bedrock also matters. When overburden is several feet deep, casing must extend through unstable material to protect the well and prevent surface water from entering. A site with 20-50 feet of loose overburden can require more casing and drilling time than exposed or shallow bedrock; long or difficult casing runs can add hundreds to several thousand dollars.
Water quantity is another important measure. A well that reaches water but does not sustain the household’s required flow may need additional drilling, storage, or a different system design. Discuss the expected yield and the contractor’s written policy for low-yield wells before work begins. Depth and casing are the two quote details that most directly reveal whether a per-foot estimate is likely to grow.
Access and drilling conditions can add to the bill even when the planned depth is ordinary. A rig may need a wide, stable route and working space; steep slopes, ledge, wet ground, trees, septic features, or overhead wires may require preparation or special equipment. If the rig must travel farther than the contractor’s normal service area, ask whether mobilization or travel is charged separately.
Which New Hampshire site conditions push estimates higher
Location affects price through contractor availability, travel distance, and access, not through a uniform statewide surcharge. In the southern part of the state and around larger towns, multiple contractors may be available, while remote northern or rural properties can involve longer mobilization and fewer scheduling options. For planning, a difficult-to-serve or remote site may receive a quote 5%-15% above a comparable accessible job; actual differences depend on the contractor and project.
Lot layout can create costs beyond the drilled hole. If the well location is far from the house, trenching and water-line installation may add $10-$30 per linear foot, with rocky ground, restoration, or long runs costing more. Electrical work, a circuit upgrade, or an unusually long wire run may add roughly $500-$2,000. Keep the proposed well location clear of septic components and confirm the layout with the relevant local authorities and professionals.
New construction may require coordination with foundation, plumbing, electrical, and septic work. Installing the well before landscaping can reduce restoration expense, but the site still needs safe access for a heavy drill rig. On an existing property, removing fencing, clearing brush, protecting pavement, or restoring a lawn can add $300-$2,500 or more depending on the extent of the work.
Request a site visit when the property has steep terrain, limited rig access, a long house connection, or substantial ledge. Photos and parcel maps help with early budgeting, but they do not replace an assessment of turning space, ground conditions, and the proposed well location.
When a complete quote includes more than the drilled hole
Additional work is not automatically included in a drilling quote. Pump equipment may be an allowance, while trenching, electrical work, plumbing connections, permits, testing, and treatment can be excluded. Ask for the scope in writing and request a separate price for each likely extra, especially if the property needs a long water line or has an existing house that must remain in service during the work.
Basic laboratory testing commonly costs about $150-$400 for a set of common drinking-water tests. Broader testing for additional contaminants can cost $300-$800 or more, depending on the lab and test list. Testing is important because a new well’s water can contain substances that require treatment even when it looks and tastes normal. Confirm which tests are included and who collects the sample.
Water treatment is a separate budget item if the test results show a need. A basic sediment filter or disinfection setup may cost $300-$1,200 installed, while more involved systems for iron, hardness, acidity, or other conditions can run $1,000-$4,000 or more. The right equipment depends on test results and household water use, so avoid accepting a treatment package without a clear explanation of the measured problem.
New Hampshire has state and local requirements for well construction and documentation. The drilling contractor should explain applicable licensing, notification, reporting, and local permit responsibilities before the job starts. Fees and processes can vary by town and project. Confirm who handles permits and completion records, and whether those fees appear in the quote.
How long drilling takes and where labor charges appear
Once the rig is on site, drilling and construction may take one to three days for a straightforward residential well, though difficult geology, greater depth, or casing work can extend the schedule. Pump installation and connections may add another half day to two days. These are active-work estimates, not a guarantee of calendar completion; weather, contractor scheduling, testing, and coordination with other trades can add waiting time.
Drillers often price a job using per-foot rates plus fixed setup or equipment charges, while pump installers and electricians may use separate labor or project rates. A minimum mobilization charge may apply even when the well is relatively shallow. Ask what depth is included in any quoted base amount and whether deeper drilling is charged by the foot, by a defined depth band, or through a change order.
Some projects need a second visit for pump work, disinfection, or troubleshooting. If the contractor bills a return trip, the charge may be $150-$500 before labor or parts, depending on travel and the service required. Confirm whether post-installation adjustments and a basic pressure check are included. A clear schedule should identify the drilling day, expected pump installation, testing, and any work the homeowner must arrange separately.
Three sample well quotes for different property conditions
These examples illustrate how scope changes a New Hampshire budget; they are not fixed market rates. Each assumes a single-family home and standard residential equipment. The final quote depends on the site assessment, contractor terms, actual depth, water yield, and local requirements.
| Property scenario | Work and unit assumptions | Labor and equipment | Estimated total |
|---|---|---|---|
| Accessible lot, moderate depth | 180 feet at about $38 per foot, basic casing, standard pump | Two-person crew for 1-2 days; standard rig access | $9,000-$12,000 |
| Typical home with longer connection | 250 feet at about $45 per foot, casing, 100 feet of trench | Drilling crew plus pump and electrical work | $13,000-$18,000 |
| Remote site, deeper well | 350 feet at about $55 per foot, additional casing and treatment allowance | Extended drilling, difficult access, added site work | $21,000-$30,000 |
In the first example, the modest depth and easy rig access keep mobilization and site preparation relatively low. The middle example includes a longer line from the well to the house, so trenching and connection work add cost beyond drilling. The last case combines depth, remote access, and a treatment allowance; it represents a more demanding scenario rather than a typical statewide price.
Ask each bidder to use the same assumed depth and equipment when practical, then list the rate for additional footage. A quote that says “well drilling” without stating whether it includes casing, pump, pressure tank, trenching, and testing is difficult to compare with a complete installed-system estimate.
How to lower the well price without cutting essential work
Get at least two or three written estimates from contractors who serve the property’s town. Ask each to separate drilling, casing, pump equipment, trenching, electrical work, testing, and optional treatment. Comparing the same scope can reveal whether a low bid excludes important items or a higher bid includes work that would otherwise be billed later.
Choose the well location with access, water-line distance, and septic separation in mind. A shorter route to the house can reduce trenching charges, but the location still must satisfy applicable rules and be suitable for the drill rig. Clear brush or move small obstacles only after the contractor identifies what is safe and useful; heavy equipment access and utility locations should be handled professionally.
Keep standard equipment where it meets the home’s needs. A typical submersible pump and pressure tank are often sufficient; variable-speed controls, larger storage, or premium treatment should be justified by water demand, test results, or system design. Avoid buying filtration equipment before receiving laboratory results. Control optional upgrades, but do not reduce needed casing, sealing, testing, or code-compliant installation to save money.
Schedule before a water emergency if possible. Emergency replacement or a failed existing well can limit contractor choice and make temporary water, expedited service, or additional troubleshooting necessary. During new construction, coordinate drilling and trenching with other site work to reduce repeated mobilization and lawn repair. Confirm any bundled price in writing so that a discount does not obscure excluded items.