Residential & Well Water Testing for Safe, Clean Drinking Water

Your water may look clear, but harmful contaminants can be invisible. Many private wells across the United States contain unsafe levels of lead, coliform bacteria, nitrates, nitrites, and other pollutants that pose serious health risks. Unlike municipal water supplies, private wells are not routinely tested—meaning it’s up to you to ensure your water is safe.

Regular testing is the only way to detect these contaminants early. Elevated lead can damage the nervous system, coliform bacteria can signal dangerous pathogens, and high levels of nitrates or nitrites can cause severe health complications, especially for infants and pregnant women.

Most experts recommend testing your well water annually for these core contaminants to keep your household safe and healthy.

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Suzanne Smith
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Everything was smooth and without a hitch. The team was reliable and did wonderful work.
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Adele Brawn
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I'm pleased with the service I received. The process was carefully planned to go quickly and easily.
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Mia Ewing
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The young lady I spoke to on the phone was extremely kind and informative. Any question I had she could answer. She represents the company extremely well! We need more people like her.
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B Leif
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Very disappointed with how 5 micron left my walls and building agree inspection Usually a company would take carpet up in the corner of the room they did it right in the middle 47 cuts and slashes Gave them a chance to make repairs - they refused Be careful when using them and always have someone who knows what they are doing onsite Refused to fix any of it Costing me thousands- they said the building was going to be completely renovated - reason for sloppy job but I never told them that
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Cassie Krebs
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5 microns was so easy to work with. Absolutely loved Carole! She was so through and educating, a true pleasure to work. I was happy to give them a call and request her to come back for mold clearance.
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JB
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Very straightforward, although does not always deliver their results on time even if paying the extra 25$
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margaret W
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Did an amazing job detecting our problem areas. Was very detailed, professional and was genuinely helpful. Highly recommend, came over next day.
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Art Jury
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On time smart great explanations. These folks know their stuff. Kind and don't make you feel stupid. General inspector and real estate agent very impressed as well. Can't go wrong with these guys. Bit expensive but you get what you pay for here.
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Samy Hampton
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⭐️⭐️⭐️⭐️⭐️ I had some concerns for mold in my office after gone through some water damage a year back, and I contacted 5 microns, and they came in the following day and ran all the necessary tests. A couple days later they emailed my results with the breakdown of everything I needed to know and how to take care of my concerns! Pascal was also very professional! Highly recommend!
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Aleesha Kaundal
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Pascal was very professional and attentive to our needs. He was also empathetic to our situation. He took quite a bit of time explaining things to us. The report is very detailed and professional too. Thanks 5 Microns
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Residential water testing. Certified specialists perform all tests. Free estimates. Results are available within 24–48 hours.

Don’t put yourself and your loved ones at risk of contaminated drinking water. Whether your home uses a private well or city water, harmful contaminants like lead, coliform bacteria, nitrates, and nitrites may be present. Let our experts handle the entire process for you. We provide professional drinking water testing with guaranteed results and a detailed service report.

How to Test Your Home or Well Water

Testing residential water requires collecting samples from your home’s taps or well system and analyzing them in an EPA-certified lab. The EPA recommends annual testing for coliform bacteria, nitrates, nitrites, and lead. Additional testing is advised if you notice changes in taste, odor, or color.

Our inspectors follow strict chain-of-custody procedures to document each sample. Testing includes microbial and chemical analysis to check for bacteria, heavy metals, and other contaminants. This ensures your tap water testing results are reliable.

Water Testing Cost

Please talk to our office team for the latest pricing and package options. We provide transparent quotes, tailored panels for different needs (basic bacteria checks, lead/heavy metals, or full-spectrum analysis), and a full report with every test.

Timing for Test Results

  • Standard turnaround: 2 business days
  • Next-day service: available if samples arrive by 2 PM (additional fee)
  • Same-day service: available by appointment, call for details

Payment Options

We accept all major credit cards, checks, and ACH payments. Your water testing report is delivered by email once payment is received.

Certified Water Testing Labs

We partner with EPA-certified laboratories to ensure accurate results. For convenience, we also provide mail-in water testing kits with full instructions. Each kit includes a chain-of-custody form and prepaid shipping.

Residential Water Testing Near Me

Call 425-440-8787 Now! or complete the form below to schedule an appointment and get a quote from one of our specialists today.

5 Microns Inc.
7100 Fort Dent Way Ste. 100
Tukwila, WA 98188
Serving homeowners in Seattle, Bellevue, and across King County.

**Water testing is not available at our Florida location.**

Get peace of mind with services from 5 Microns Inc.