Well Water Resources for New Hampshire

Testing labs, treatment companies, costs, rebates, and government resources for private well owners.

Water Testing

For detailed testing information — labs, costs, free PFAS testing, and what to test for — see our complete testing guide.

Treatment Rebates

NH DES offers $5,000-$10,000 in rebates for treatment systems. See our complete rebate guide.

Treatment Companies

These companies serve New Hampshire well owners. We are not affiliated with any of them — this list is a starting point for your research.

Skillings & Sons Well drilling and water treatment. Serving NH since 1956. Full-service well company.
Granite State Plumbing & Heating Water treatment system installation. Serves southern NH.
NH Tap Water treatment specialists. RO systems, arsenic treatment, PFAS treatment. Serves statewide.
Culligan of NH National brand with local service. Water testing, treatment, and softening.
Clean Water Testing Water testing and treatment consulting. Helps interpret test results and recommend treatment.
A&B Cooling & Heating Water treatment installation including RO, softeners, and filtration. Southern NH.

Treatment Costs

What you'll typically pay for common treatment systems in New Hampshire (before rebates):

System	Typical Cost	Notes
Point-of-use RO (kitchen sink)	$400-$1,000 installed	Treats one tap. Removes arsenic, PFAS, uranium. Most cost-effective first step.
Whole-house arsenic media	$1,500-$4,000	Iron-based adsorptive media. Replacement every 1-3 years.
Whole-house PFAS (GAC)	$2,000-$5,000	Granular activated carbon. Carbon replacement needed periodically.
Radon aeration system	$3,000-$5,000	Strips radon from water, vents outdoors. 95-99% effective.
Water softener	$1,000-$2,500	Addresses hardness only. Does NOT remove arsenic, PFAS, or radon.
UV disinfection	$500-$1,500	Bacteria treatment. Annual bulb replacement ~$50-$100.

Remember: NH rebates of $5,000-$10,000 can cover most or all of these costs. Check your eligibility.

Always test before you buy. A salesperson who recommends a system without seeing your water test results is not working in your interest. Know what's in your water, at what concentrations, and then match the treatment to the problem.

Government Resources

NH Department of Environmental Services (DES) (603) 271-2513. The primary state agency for well water. Operates the state lab, PFAS investigation program, and treatment rebate program.
NH DES Private Well Program Guidance for private well owners including testing recommendations, well construction standards, and resources.
NH Geological Survey Arsenic probability maps by town, bedrock geology maps, and groundwater studies.
UNH Cooperative Extension Educational resources for well owners including testing guidance, result interpretation, and treatment options.
EPA Private Well Resources Federal guidance for private well owners, contaminant fact sheets, and testing recommendations.