Connecticut Water Treatment Company

H2O Equipment Company Inc.

H2O was established in 1967. Since then, we have helped over 125,000 customers with water treatment equipment and well services in Connecticut, including East Hampton and the surrounding rural communities. We have standard office hours and 24/7 emergency services staffed with experienced, trained technicians—ready to help you quickly!


The BEST place to start is with our FREE in-home water test.
It takes only 10 minutes—with absolutely NO obligation.
Receive instant results for Iron, pH, Hardness, Sulfur Water, and TDS levels.

  • This field is for validation purposes and should be left unchanged.

Water Problems


H2O offers:

  • FREE In-Home Water Test
  • FREE Walk-In Water Test
  • Standard Water Tests
  • Tests for Mortgages (VA/FHA)
  • Bacteria
  • Lead
  • Radon
  • Arsenic
  • Uranium

You need it – we got it!


I wanted to take the time to thank H2O and their staff. Each time I called H2O, the technicians on call responded within minutes. The daytime phone staff was very polite and helpful. I can’t say enough about these individuals for making all the right recommendations.

Robert C.

They have been our water treatment company for years and we have always been happy with them. Today, after no water for over a day, Diane walked me through every tank and lever to check all possibilities. She helped me find and solve the problem and I am so grateful. She was super!

Deborah B

I switched to H20 over 4 years ago and haven’t regretted the switch. Everyone from the owner to the secretary to the technicians are prompt and professional. Technicians arrive on time, work diligently and leave the area clean.

Sandy S

Great experience! After multiple places not following up, they came out, tested the water, gave us multiple options, and were out with our new system in just over a week! Excellent service!

Jess U

As a first-time customer, I am pleased with the professionalism of H20’s staff. The office dispatched a technician to our home within hours of my emergency call. The problem was quickly and correctly assessed and solved. The technician was very knowledgeable, competent, and friendly.

Wanda A