Connecticut Water Well
Drilling Cost
The average residential well in Connecticut is 250 feet deep and costs $12,000 in 2026. Drilling rates range from $30 to $70 per foot, with total project costs varying based on depth, geology, and pump system.
Avg. Well Depth
250 ft
Cost / Foot
$30–$70
Total Project
$12,000
vs. National
60% above avg.
Connecticut Well Drilling Cost by Depth
| Well Depth | Drilling Only | Complete System | Est. Total |
|---|---|---|---|
| 100 ft | $3,000–$7,000 | $7,800–$11,800 | $9,600 |
| 150 ft | $4,500–$10,500 | $9,700–$15,700 | $12,400 |
| 200 ft | $6,000–$14,000 | $11,600–$19,600 | $15,200 |
| 300 ft | $9,000–$21,000 | $15,400–$27,400 | $20,800 |
| 400 ft | $12,000–$28,000 | $19,200–$35,200 | $26,400 |
| 500 ft | $15,000–$35,000 | $23,000–$43,000 | $32,000 |
*Drilling only = drilling labor per foot. Complete system includes casing, pump, pressure tank, electrical, and permits. Costs are Connecticut estimates for 2026.
Connecticut Well System Component Costs
| Service | Low | High | Average |
|---|---|---|---|
| Well Casing — PVC (250 ft) | $1,500 | $2,750 | $2,000 |
| Well Casing — Steel (250 ft) | $7,500 | $32,500 | $16,250 |
| Submersible Pump | $300 | $2,000 | $1,000 |
| Pressure Tank | $500 | $2,000 | $1,100 |
| Electrical Hookup | $1,000 | $3,000 | $1,800 |
| Permits | $100 | $400 | Varies |
| Water Quality Testing | $50 | $500 | $200 |
*Component costs based on Connecticut average well depth of 250 ft. Steel casing is typically required for bedrock wells; PVC is used in unconsolidated formations.
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Itemized Cost Estimate
This estimate is 54% above the Connecticut average of $12,000
Estimates are approximate. Actual costs depend on site conditions and contractor pricing.
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Connecticut Geology & Aquifers
Connecticut's bedrock consists primarily of crystalline metamorphic and igneous rock — gneiss, schist, and granite — which yields water through fracture zones. The Connecticut River Valley has a narrow band of sedimentary sandstone and brownstone with more predictable yields.
Understanding your local geology is important because rock type directly affects drilling cost. Hard crystalline rock (granite, gneiss) costs more to penetrate than soft sedimentary formations (sandstone, limestone) or unconsolidated deposits (sand, gravel). Your well driller can estimate costs based on nearby well logs.
Primary Aquifer
Crystalline Bedrock Aquifers / Connecticut Valley Stratified Drift Aquifers
Water table depth: 50-200 feet in stratified drift deposits; 100-500 feet in bedrock wells
Best Drilling Season
April through November; frozen ground and snow cover limit winter drilling access
Population on well water: About 23% of Connecticut residents rely on private wells, particularly in rural Litchfield County and eastern Connecticut
Why Well Depth Varies in Connecticut
Wells in Connecticut range from 80 to 600 feet deep. The wide range is driven by regional differences in geology, water table depth, and aquifer type. A well in one part of the state may cost significantly more or less than another area just 50 miles away.
80 ft
Shallowest typical wells
Usually in areas with high water tables, sandy soils, or alluvial aquifers near rivers
250 ft
State average depth
Typical residential well for most Connecticut locations
600 ft
Deepest typical wells
Usually in arid areas, mountain terrain, or where shallow aquifers are depleted
Connecticut Well Drilling Permits & Regulations
All water well drillers must be registered with the Connecticut Department of Consumer Protection. Homeowner drilling is not permitted.
Permit Authority
- Authority
- Local Health Departments issue well permits under Connecticut Department of Public Health regulations
- Permit Cost
- $100-$400
Water Rights
- Doctrine
- Reasonable Use (regulated through the Water Diversion Policy Act for large withdrawals)
Well Water Quality in Connecticut
Well water quality in Connecticut varies by location and aquifer type. Testing your water at least annually is recommended, and a comprehensive test should be done before using a new well.
Common Water Quality Issues
radon
Treatment: aeration or granular activated carbon system
arsenic
Treatment: reverse osmosis or adsorption media filter
uranium
Treatment: reverse osmosis or ion exchange system
iron
Treatment: iron filter or oxidation system
manganese
Treatment: oxidation filter or greensand system
coliform bacteria
Treatment: UV disinfection or chlorination system
Testing Recommendations
- Before first use: Full panel including bacteria, nitrates, pH, and state-specific contaminants ($150–$500)
- Annually: Bacteria (coliform) and nitrate testing at minimum ($50–$100)
- After flooding or repairs: Bacteria test to confirm well integrity ($25–$50)
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Well Drilling Costs by City in Connecticut
Well drilling costs vary by location within Connecticut. Select a city for local pricing details.
Hartford
CT
New Haven
CT
Stamford
CT
Bridgeport
CT
Waterbury
CT
+ 3 more cities in Connecticut. View all
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Connecticut Well Drilling FAQ
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