Updated: May 14, 2026
Location and Projects
Address
709 JEFFERSON AVE SW, Watertown, MN, 55388
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Aj Water Treatment HVAC/Mechanical Contractor
Aj Water Treatment Inc, 709 Jefferson Ave SW, Watertown, MN holds a Water Conditioning license according to the Minnesota license board.
Their BuildZoom score of 99 ranks in the top 15% of 77,973 Minnesota licensed contractors.
Their license was verified as active when we last checked. If you are thinking of hiring Aj Water Treatment Inc, we recommend double-checking their license status with the license board and using our bidding system to get competitive quotes.
Aj Water Treatment Inc Contact Information
Phone Number: (952) 920-1200
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Address: 709 JEFFERSON AVE SW, Watertown, MN 55388
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Aj Water Treatment Inc Watertown
Quality
99
85th percentile
Pro tip:
We generally recommend hiring a contractor with a score higher than 95.
Aj Water Treatment Inc has a BuildZoom score of 99, which places them above 85% of 77,973 contractors in Minnesota.
Activity
|
3 projects
|
2025 |
|
3 projects
|
2024 |
|
2 projects
|
2023 |
Our building permit records indicate that Aj Water Treatment Inc has worked on at least
8.0 projects over the past 3 years.
This is an overview of this contractor's activity. Click here to access our complete licensing and building permit database.
This is an overview of this contractor's activity. Click here to access our complete licensing and building permit database.
Pricing
|
7 projects
|
< $5k |
Pro tip:
For more details about their pricing, check out their recent activity to see how much they have charged for different types of work.
Building Permits by Aj Water Treatment Inc
This is a sample of this contractor's permits. Click here to access their complete permit history.
Water softener
Valuation:
$500
Permit #:
ED205284
Status:
final
Fee:
$40
Permit Type:
Residential
Building Type:
N/A
Water softener
Valuation:
$500
Permit #:
ED202628
Status:
final
Fee:
$40
Permit Type:
Residential
Building Type:
N/A
Water softener
Valuation:
$500
Permit #:
ED202627
Status:
issued
Fee:
$40
Permit Type:
Residential
Building Type:
N/A
Drinking water system
Valuation:
$1,000
Permit #:
MI261455
Status:
final
Fee:
$51
Permit Type:
Townhouse units
Building Type:
N/A
Water softener
Valuation:
$750
Permit #:
MI267571
Status:
final
Fee:
$51
Permit Type:
Single family
Building Type:
N/A
Water softener
Valuation:
$500
Permit #:
ED195334
Status:
issued
Fee:
$40
Permit Type:
Residential
Building Type:
N/A
Water softener
Valuation:
$500
Permit #:
ED224167
Status:
issued
Fee:
$40
Permit Type:
Residential
Building Type:
N/A
Water softener
Valuation:
$500
Permit #:
ED217352
Status:
issued
Fee:
$40
Permit Type:
Residential
Building Type:
N/A
Water softener
Valuation:
N/A
Permit #:
B-24-461
Status:
issued
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Water softener
Valuation:
$750
Permit #:
MI267890
Status:
final
Fee:
$51
Permit Type:
Single family
Building Type:
N/A
Water softener
Valuation:
$500
Permit #:
ED197859
Status:
final
Fee:
$40
Permit Type:
Residential
Building Type:
N/A
Water softener
Valuation:
$500
Permit #:
ED197704
Status:
issued
Fee:
$40
Permit Type:
Residential
Building Type:
N/A
Water softener
Valuation:
$500
Permit #:
ED194841
Status:
final
Fee:
$40
Permit Type:
Residential
Building Type:
N/A
Water softener
Valuation:
$500
Permit #:
ED194840
Status:
final
Fee:
$40
Permit Type:
Residential
Building Type:
N/A
Water softener
Valuation:
$500
Permit #:
ED194839
Status:
final
Fee:
$40
Permit Type:
Residential
Building Type:
N/A
Water softener
Valuation:
$500
Permit #:
ED226595
Status:
issued
Fee:
$40
Permit Type:
Residential
Building Type:
N/A
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Aj Water Treatment Inc Reviews
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Verified License
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Aj Water Treatment Inc License info
Verified License
| License # | WC787553 |
| Status | Active |
| State | Minnesota |
| Type | Water Conditioning |
- BuildZoom verified this license was active as of May 2026.
Verify this license's status for Aj Water Treatment Inc at the Minnesota Department of Labor & Industry.
This is a sample of licensing data; click here to access a complete history.
99
BuildZoom Score
16
Permits
- Building permit records show that Aj Water Treatment Inc has worked on 16 permitted projects.