How much does it cost to treat a well?

Do-it-yourself with store bleach runs $10 to $50 in materials plus your own math and guesswork. Pre-measured chlorine sanitizer packs run about $45. A professional treatment can cost up to $500, usually with chlorine, and it may not include a bacteria test; a full contractor well cleaning with brushing or redevelopment is a different service and runs $500 to $1,500. Our treatment kit is $329 for a lidded mixing pail, pre-measured pouches covering a dose of up to 15 grams, and two bacteria tests, plus $29 shipping, and a well with more standing water adds $59 for each extra 5 grams.

Treating a well with a disinfectant is also called shock chlorination.

A pro's price tracks well depth and system size: a shallow well with a simple chlorine drop costs less, and a deep well or a larger system climbs toward the top.

The honest way to compare the options is per solved well, not per bag of chemicals: a cheap treatment that lets the problem return in eight weeks costs more by spring than doing it right once. Our kits-compared guide walks all four options.

Want the dose sized to your exact well?

Answer a few questions and we will size your treatment dosage for you. The kit is from $329.