Hard Water Mineral Buildup
Mahtomedi tests at 14 grains per gallon (extremely hard). Untreated, this scales every faucet, water heater, dishwasher, and washing machine in your home.
Service Area
Plumber in Mahtomedi, MN
Mahtomedi, MN water tests at 14 grains per gallon. A.J. Alberts has been installing softeners, filtration, water heaters, and full residential plumbing for Twin Cities homes since 1989.
Photo: Wikipedia
Licensed Minnesota (MN PC150039)
★ 4.9 stars, 800+ reviews Best of Woodbury · 2025 Winner, 2026 Finalist
Free in-home water test
Quick Summary
A.J. Alberts Plumbing serves Mahtomedi, MN for water softener installation, water conditioning, plumbing repair, water heater service, drain cleaning, and boilers. Free in-home water test at every appointment. Written upfront pricing. Lifetime craftsmanship warranty. Serving Washington County, MN since 1989. Call 651-738-0580.
Water Quality in Mahtomedi
Mahtomedi is a White Bear Lake-adjacent community with strong school district reputation and a mix of mid-century and newer housing. PFAS treatment and softener sizing are the two most common Mahtomedi conversations.
14
grains per gallon
PFAS-affected — filtration + softener required
Within the documented East Metro PFAS contamination zone per MDH mapping. Schedule household testing.
Primary water source
Municipal water from city wells drawing from the Prairie du Chien-Jordan aquifer. Mahtomedi is within the documented 3M PFAS contamination zone per MDH records.
Recommended treatment for Mahtomedi homes:
Whole-home PFAS filtration plus advanced water softener — both required
See treatment options →For the full Twin Cities water quality picture, see our water quality map and city-by-city data.
Common Water Issues We Solve in Mahtomedi
Most Mahtomedi homes we visit fall into one of these four buckets. Free in-home test confirms which apply to yours.
PFAS Contamination
Mahtomedi is within the documented East Metro PFAS contamination zone tied to historical 3M discharge. Even with municipal treatment, many homes install a certified household PFAS filter as a defense-in-depth layer.
Drinking Water Contaminants
Beyond hardness, Mahtomedi tap water can carry trace dissolved metals, sediment, and chlorination byproducts. Under-sink reverse osmosis delivers cleaner drinking and cooking water than most bottled.
Aging In-Home Plumbing
Many Mahtomedi homes are 30+ years old. Original water heaters, softeners, supply lines, and shut-off valves are often due for replacement. Proactive maintenance prevents emergencies.
Free In-Home Water Test in Mahtomedi
No fee. No obligation. We confirm what is actually in your specific water.
Services Available in Mahtomedi
Water Softener Installation
Sized and programmed for the extremely hard water common in Mahtomedi. Lifetime craftsmanship warranty.
Whole-Home Filtration
Carbon, sediment, PFAS, and iron filtration matched to your specific water test.
Reverse Osmosis
Under-sink and whole-home RO systems for the cleanest possible drinking water.
Plumbing Services
Leak repair, fixture installation, sump pumps, water line repair, gas lines.
Water Heaters
Tank, tankless, and hybrid heat pump installation and repair. Same-day options.
Boiler Service
Hydronic boiler repair, replacement, and radiant floor heat. Critical Minnesota winter work.
Drain Cleaning
Cable, hydro jetting, and in-line camera. Mainline backups handled same-day.
Free Water Test
Free on-site testing for hardness, iron, chlorine, pH, and TDS. No obligation.
Maintenance Plans
Annual plumbing inspection, water heater flush, softener tune-up, priority scheduling.
Why Mahtomedi Homeowners Choose A.J. Alberts
37 Years
Locally owned and operating across the Twin Cities since 1989. Best of Woodbury 2025 Winner, 2026 Finalist.
10 / 5 / 0
10 plumbers, 5 master plumbers, 0 commissioned salespeople. No upsell pressure, ever.
4.9 stars
800+ Google reviews from real Twin Cities customers. Lifetime craftsmanship warranty on every install.
Read all reviews →
What Mahtomedi-Area Customers Say
A small sample of the 800+ Google reviews we have earned across the Twin Cities.
★★★★★
"AJ Alberts came out same day when our water heater broke. The technician was polite, explained the costs upfront, and had it replaced in a few hours. Highly recommend!"
Sarah M.
Woodbury, MN
★★★★★
"We've used them for over 10 years. Always reliable, always professional. It's great having a local plumber you can trust not to overcharge."
David K.
Stillwater, MN
★★★★★
"They installed a new water softener for us. The difference is amazing. Clean installation, no mess left behind, and very respectful of our home."
Jessica R.
Cottage Grove, MN
Nearby Areas We Also Serve
Mahtomedi Service FAQs
Do you serve Mahtomedi, MN?
Yes. A.J. Alberts Plumbing is fully licensed in Minnesota (MN License PC150039) and serves Mahtomedi, MN for plumbing, water softener installation, water conditioning, water heater service, and drain cleaning. We handle most service calls within a day or two of booking.
How fast can A.J. Alberts get to my Mahtomedi home?
For non-emergency service in Mahtomedi, same-day to next-day appointments are typical. For active leaks, burst pipes, or no-heat emergencies, call 651-738-0580 immediately and we will prioritize you.
Do you offer free water testing in Mahtomedi?
Yes. Free in-home water testing is included at every Mahtomedi appointment, no obligation to buy. We test hardness, iron, chlorine, pH, and total dissolved solids on-site and walk you through what the results mean for your home.
What is the hardness of Mahtomedi water?
Mahtomedi tests in the very hard to extremely hard range, typically 14 to 17 grains per gallon depending on the well source for your service line. A free in-home test confirms the exact number for your address.
Are A.J. Alberts maintenance plans available in Mahtomedi?
Yes. Maintenance plans include annual plumbing inspection, water heater flush, softener tune-up, and priority emergency scheduling. Mahtomedi homes on the plan get same-day priority service even during peak winter and storm seasons.
Need Service in Mahtomedi?
Schedule a free in-home water test, or call us directly for immediate service.
A.J. Alberts Plumbing & Water Conditioning
7975 Afton Road · Woodbury, MN 55125 · 651-738-0580