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Water Quality Services in Londonderry, NH

Water in Southern New Hampshire can carry more than most homeowners expect, and many of the contaminants the New Hampshire Department of Environmental Services (NHDES) worries about, including arsenic, radon, and uranium, have no taste, smell, or color. Nearly half of New Hampshire residents get their water from a private well, and nobody tests those wells on their behalf.

At Mainline Plumbing, our water quality services start with testing for both well and town water, and they carry through to treatment when your results call for it. We collect the sample, get it to a lab, and explain the results in plain terms. Because we also install the equipment, we only recommend it when your numbers point to a need.

Our Water Quality Services in Southern New Hampshire

A single visit can cover the basics or go deeper, depending on your water and what you’re concerned about. From there, we can help with the fix as well.

Well Water Testing

NHDES’s standard analysis checks for arsenic, bacteria, hardness, iron, manganese, nitrate, pH, uranium, lead, copper, and other common pollutants. It’s the best starting point for any private well, and on town water we focus on what the utility doesn’t cover, such as hardness, chlorine, and metals from your plumbing.

Water Softeners and Hard Water Treatment

Scale on faucets, rust-colored stains, and a metallic taste usually point to hardness or iron. We test for both and offer water softener services to prevent mineral buildup and unpleasant tastes or odors in your drinking water.

Whole-House Water Filtration

When a test shows sediment, iron, sulfur, or a chlorine taste, we install whole-house water filtration systems that treat water where it enters your home. We size the equipment to your results, so you only pay for the treatment your water needs.

Treatment for Radon, PFAS, and Other Contaminants

New Hampshire’s bedrock puts naturally occurring radioactive elements into well water, and NHDES added PFAS to its testing recommendations in 2019. If testing indicates either one, we offer radon removal services and PFAS reduction systems to help keep your water safe and healthy to drink.

When to Consider Water Quality Services

NHDES recommends testing every three to five years, though some situations call for sooner. Here are a few instances where testing or treatment is a good idea.

  • You’ve never tested your water: We recommend starting with the standard analysis plus radon.
  • It’s been a year for bacteria and nitrate: NHDES recommends testing private wells for these annually.
  • Your well or plumbing was worked on: Retest after construction, repairs, or plumbing changes.
  • Taste, color, or staining has changed: A shift in previously trouble-free water is worth checking.
  • You’re buying a home with a private well: It’s a good idea to test before closing on a new home.

NHDES’s private well testing guidance lists accredited labs and explains the recommended tests, and its Be Well Informed tool helps interpret results. We’re happy to walk through your report either way.

What to Expect During Water Quality Testing

Here’s how a testing visit works.

  1. Schedule the visit: Tell us what you’re noticing at the tap, and we’ll choose tests to match.
  2. Collect the sample: We follow the lab’s instructions so the sample isn’t contaminated.
  3. Lab analysis: An accredited lab measures what’s in your water.
  4. Review and plan: We go through each result and tell you which ones, if any, call for action.

Keep a copy of your report, since it helps when you’re comparing results years from now or selling the house.

Why Choose Mainline for Water Quality Services in Southern NH?

Mainline Plumbing is a family-owned company in Londonderry, NH, and well pumps and water quality are what we know best. Our licensed NH Master Plumbers and state-approved apprentices handle the work on-site.

If your results point to a need for treatment, we can install it ourselves, and we offer specials and financing for larger projects.

Proudly Serving Londonderry and the Surrounding Area

Our team works with homeowners in Londonderry, Bedford, Windham, Pelham, and the surrounding areas. Alongside water quality services, we help local homeowners with:

Testing first keeps every one of these decisions grounded in what your water actually contains.

Schedule Water Quality Services in Southern NH

A test takes one visit and gives you something concrete to act on. Schedule well water testing online and tell us what’s going on with your water.

Frequently Asked Questions

How do I get my water tested in NH?

Private well owners can use an accredited lab, and NHDES’s testing guidance lists them. We can also collect the sample and get it to the lab for you, then walk you through the results. If you’re on town water, your utility publishes its own test results, so a test of your tap focuses on what happens inside your home.

How often should I test my well water?

NHDES recommends the standard analysis every three to five years, with bacteria and nitrate checked annually for private wells. Test again after any well repair or construction, or when your water’s taste, color, or smell changes.

How much does a water test for well water cost?

The cost depends on the lab and how many tests you include. We’ll quote the tests that fit your water, and NHDES’s recommended panels are a good guide for what to include.

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Written By Mainline Plumbing

Serving New Hampshire Since 1992

When something goes wrong with your water, the cause isn’t always obvious. It could be your plumbing, well system or the water itself. Mainline has the experience to look at the whole picture, identify the problem and recommend the right solution.

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