About
Harry Caswell LLC has been providing comprehensive plumbing and utility services across Delaware and Maryland's Eastern Shore since 1989. Based in Millsboro, DE, they handle commercial and residential plumbing, residential fire protection, sewer jetting, and utility services, including medical gases. The company also specializes in well drilling and pump installation, backed by extensive licensing and 24/7 emergency service. They ensure guaranteed services using top-quality plumbing supply parts.
Regulatory Context
Well Drilling Regulations in Delaware
Water well drilling contractors in Delaware must hold a current state well-driller license and follow state well-construction standards that protect groundwater and aquifers. Look for contractors licensed by the Delaware well-driller licensing board and members of the National Ground Water Association (NGWA). Drilling, casing, and well-completion work is regulated under state groundwater-protection programs and the federal Safe Drinking Water Act. Contact your state well-driller licensing board for specific licensing and permit requirements in your area.
See full well drilling regulations in Delaware →
Frequently Asked Questions
How often should a water well be serviced in Millsboro, Delaware?
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Most well owners in Delaware should have their water well and pump inspected once a year, and the water tested at least annually for bacteria and contaminants. Homeowners in Millsboro who notice changes in water pressure, taste, or clarity should schedule a service visit sooner. A licensed well driller can check the pump, pressure tank, casing, and water quality during a routine inspection.
What does it cost to drill a water well in Millsboro?
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Drilling a residential water well in Millsboro, Delaware typically costs between $3,500 and $15,000+, depending on well depth, geology, casing, and the pump system. Deeper wells, hard rock, and remote sites raise the cost. Request quotes from multiple licensed well drillers to compare depth estimates, casing, and pump packages.
Does a well driller need to be licensed in Delaware?
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Yes. Delaware requires water well drilling contractors to hold a current state well-driller license issued by the state licensing board, and to follow state well-construction standards that protect groundwater. Membership in the National Ground Water Association (NGWA) is an added sign of professionalism. Always confirm a contractor's state license before hiring.
What are the signs my well pump needs replacement in Millsboro?
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Common signs a well pump is failing in Millsboro include low or fluctuating water pressure, air spitting from faucets, rising electric bills, the pump running constantly, or no water at all. If you notice these symptoms, contact a licensed well driller or pump contractor. Many providers offer emergency service and can typically diagnose the pump and pressure tank within a day.
More Contractors in Delaware
Listing data last checked: July 2, 2026
Regulatory Context
Well Drilling Regulations in Delaware
Water well drilling contractors in Delaware must hold a current state well-driller license and follow state well-construction standards that protect groundwater and aquifers. Look for contractors who are licensed by the Delaware well-driller licensing board and who are members of the National Ground Water Association (NGWA). Drilling, casing, grouting, and well-completion work is regulated under state groundwater-protection programs and the federal Safe Drinking Water Act. Contact your state well-driller licensing board for specific licensing and permit requirements in your area.
→ See full well drilling regulations in Delaware
Frequently Asked Questions
How often should a water well be serviced in Millsboro, Delaware?
Most well owners in Delaware should have their water well and pump inspected once a year, and the water tested at least annually for bacteria and contaminants. Homeowners in Millsboro who notice changes in water pressure, taste, or clarity should schedule a service visit sooner. A licensed well driller can check the pump, pressure tank, casing, and water quality during a routine inspection.
What does it cost to drill a water well in Millsboro?
Drilling a residential water well in Millsboro, Delaware typically costs between $3,500 and $15,000+, depending on well depth, geology, casing, and the pump system. Deeper wells, hard rock, and remote sites raise the cost. Request quotes from multiple licensed well drillers to compare depth estimates, casing, and pump packages.
Does a well driller need to be licensed in Delaware?
Yes. Delaware requires water well drilling contractors to hold a current state well-driller license issued by the state licensing board, and to follow state well-construction standards that protect groundwater. Membership in the National Ground Water Association (NGWA) is an added sign of professionalism. Always confirm a contractor's state license before hiring.
What are the signs my well pump needs replacement in Millsboro?
Common signs a well pump is failing in Millsboro include low or fluctuating water pressure, air spitting from faucets, rising electric bills, the pump running constantly, or no water at all. If you notice these symptoms, contact a licensed well driller or pump contractor. Many providers offer emergency service and can typically diagnose the pump and pressure tank within a day.
Browse all well drillers in Millsboro, Delaware →
Browse Directory
More Well Drillers in Delaware
East Coast Drilling, Inc.
Moorestown, Delaware
Aqua Tech Water Specialties
Lewes, Delaware
Ziegenfuss Drilling Inc
Ringoes, Delaware
Environmental Probing Investigations, Inc. (EPI, Inc)
Cream Ridge, Delaware
SANO Drilling
Sewell, Delaware
Edgewater Well Service, LLC
Dover, Delaware
Browse all well drillers in Delaware →
Listing data last checked: July 2, 2026
