Service Area
Licensed plumbers for Cottage Grove homes since 1989: water heaters, drains, leaks and fixtures, boilers, and water conditioning. Same-day and next-day appointments, written upfront pricing, and a free in-home water test with every visit.
Photo: Wikipedia
A.J. Alberts Plumbing provides licensed residential plumbing in Cottage Grove, MN: water heater repair and replacement, drain and sewer cleaning, leak and fixture repair, boiler service, and water softener and filtration installation. Same-day and next-day appointments are typical, pricing is written and upfront, and every install carries a lifetime craftsmanship warranty. Call 651-738-0580 or book online.
One licensed crew for repairs, replacements, and water treatment. No commissioned salespeople, ever.
Leaks, faucets, toilets, sump pumps, water lines, and gas lines. Diagnosed on site and quoted in writing before work starts.
Repair and replacement of tank, tankless, and hybrid heat pump water heaters, with availability confirmed when scheduling.
Cable, hydro jetting, and in-line camera inspection for slow drains and mainline backups.
Boiler repair, replacement, and radiant floor heat, with licensed boiler technicians on staff.
Active leaks, burst pipes, and no-heat calls are prioritized. Call 651-738-0580 and we will get a plumber moving.
Softener installation and repair, filtration, and reverse osmosis, selected for the actual water conditions, household goals, and equipment requirements.
Matt, our Journeyman Plumber based in neighboring Inver Grove Heights, covers Cottage Grove as part of his south metro route. Customers can request Matt by name when scheduling.
A.J. Alberts serves Cottage Grove from its Woodbury headquarters. Matt also includes Cottage Grove in his south-metro service area. Residential work includes water heaters, drains, leak and fixture repairs, sump pumps and water treatment.
If you are comparing repair and replacement, the useful details are the equipment model, its maintenance history, any previous repairs and the present symptoms. We assess those details before quoting the work. The age of the neighborhood does not establish that a water heater or softener is due for replacement.
Excerpts from the 863 Google reviews A.J. Alberts has earned across the Twin Cities. Each one links to the original.
"AJ Alberts is hands-down the best plumbing service in Woodbury. This was my third or fourth time working with them, and they continue to earn my complete trust. They offer highly competitive, job-based flat pricing (not hourly) and never pressure you into upsells...."
Heonjoo Ha
"Ryan was professional and very diligent in checking that the shower faucet was working properly after installation. He did not bolt for the door the second he finished the job. He worked clean wearing shoe protection and cleaning up everything after he finished. The price was reasonable. 1s time I have used AJ Alberts will definitely call them in the future."
Larry Kallas
"New service - AJ Alberts installed two toilets and a kitchen faucet. Kevin Lundell was wonderful to work with. His recommendations were spot on and he did a timely job of installation. Highly recommend...."
Roger Green
"James from AJ Alberts Plumbing was at my home to fix an overactive toilet - it wouldn't shut off. He not only fixed it quickly but also showed me what to look for in the future if the problem happens again...."
Pat Trepp
Cottage Grove is part of our East Metro service area. Matt includes it among the communities he serves from the south metro.
Cottage Grove's Low Zone Water Treatment Plant has operated since June 2025 and uses granular activated carbon to address PFAS. The city publishes a 17-grain hardness reference. Check current utility information for your address and use a household reading for equipment settings. Historical well contamination does not by itself establish the level at your tap.
Cottage Grove publishes a 17-grain reference. Confirm actual hardness at the home.
Utility hardness source, checked 2026-09-18
A city reference is not a measurement of your tap. Check your supply and any treatment already installed before selecting or programming equipment.
Water source
Cottage Grove's municipal system includes the Low Zone Water Treatment Plant, operational since June 2025. Private wells require separate information.
Treatment guidance:
Choose treatment for a specific concern using the utility report or appropriate laboratory results. Compare the exact equipment's documented reduction claims and maintenance requirements. Basic readings do not measure every contaminant.
See treatment options →Local water sources, checked 2026-09-18:
MDH home-softening guidance explains why softening depends on actual hardness and household needs.
For source guidance and testing options, see our water-quality guide.
The appropriate test or equipment inspection depends on the concern. Our free basic water test does not measure PFAS or establish that water is safe to drink. PFAS analysis is a separate paid laboratory service.
The reference hardness here is 17 grains per gallon (cottage Grove publishes a 17-grain reference. Confirm actual hardness at the home.). Hard water can contribute to mineral buildup. Confirm actual hardness and any treatment already in place before deciding whether to use a softener.
A.J. Alberts offers separate paid laboratory PFAS testing for municipal-water and private-well customers. We collect and submit the sample and explain the report. Confirm the test scope, price, and turnaround when scheduling; PFAS is not included in the free basic water test. A regional history does not establish the level at your tap.
Start with the current utility report or appropriate laboratory results for a private well. Select treatment for a defined concern and check the exact model's reduction claims and maintenance requirements.
Check the equipment model, installation history, maintenance and current symptoms. The age of a house does not establish the age or condition of its plumbing equipment.
Our free basic in-home water test checks hardness, iron, chlorine, pH, alkalinity, and total dissolved solids, with nitrate testing for private wells. It does not measure PFAS or certify that water is safe to drink.
A.J. Alberts offers separate paid laboratory PFAS testing for municipal-water and private-well customers. We collect and submit the sample and explain the report. Confirm the test scope, price, and turnaround when scheduling; PFAS is not included in the free basic water test.
Locally owned and operating across the Twin Cities since 1989. Best of Woodbury 2025 Winner, 2026 Winner.
10 plumbers, 5 master plumbers, 0 commissioned salespeople. No upsell pressure, ever.
863 Google reviews from Twin Cities customers. Lifetime craftsmanship warranty on every install.
Read all reviews →
Book online in about a minute, or call for same-day help.
Prefer to start with your water? Schedule a free in-home water test.
A.J. Alberts Plumbing & Water Conditioning
7975 Afton Road · Woodbury, MN 55125 · 651-738-0580
