Updated: May 22, 2026
Location and Projects
Address
4907 LIGHTNING DR, Duluth, MN, 55811
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Ag o'brien Plumber
Ag o'brien, 4907 Lightning Dr, Duluth, MN (Owned by: Ag Obrien Plumbing And Heating Co) holds a Electrical license and 6 other licenses according to the Minnesota license board.
Their BuildZoom score of 108 ranks in the top 5% of 77,973 Minnesota licensed contractors.
Their license was verified as active when we last checked. If you are thinking of hiring Ag o'brien, we recommend double-checking their license status with the license board and using our project planner to get competitive quotes.
Ag o'brien Services
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Ag o'brien Contact Information
Phone Number: (218) 729-9662
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Address: 4907 LIGHTNING DR, Duluth, MN 55811
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Ag o'brien Duluth
Quality
108
95th percentile
Pro tip:
We generally recommend hiring a contractor with a score higher than 95.
Ag o'brien has a BuildZoom score of 108, which places them above 95% of 77,973 contractors in Minnesota.
Activity
|
1 project
|
2026 |
|
775 projects
|
2025 |
|
422 projects
|
2024 |
|
123 projects
|
2023 |
Our building permit records indicate that Ag o'brien has worked on at least
1321.0 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.
Experience
|
11 projects
|
Home Additions |
|
11 projects
|
New Constructions |
|
4 projects
|
Commercial Renovations |
|
418 projects
|
Plumbing projects |
|
4 projects
|
Sewer laterals |
Analyzing permits over the last 4 years shows that Ag o'brien mostly works on
plumbing project
and new construction
projects.
Pricing
|
1202 projects
|
< $5k |
|
71 projects
|
$5k-$20k |
|
25 projects
|
$20k-$50k |
|
15 projects
|
$50k-$100k |
|
10 projects
|
$100k-$250k |
|
1 project
|
$250k-$500k |
|
3 projects
|
$1mil+ |
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.
This is a sample of this contractor's permits. Click here to access their complete permit history.
Plumbing (over 25 openings or food service) - commercial & 3+ multi-family
2024-09-18
Construction of a new 15 story apartment complex with over 200 units which will include water closets lavatories sinks showers tubs drains roof drains and thousands upon thousands of feet of piping for domestic water sanitary gas and storm
Valuation:
$3,500,000
Permit #:
CSPLUMC-2407-0047
Status:
issued
Fee:
$22,396
Permit Type:
N/A
Building Type:
N/A
Hvac (new construction) - commercial & 3+ multi-family
2025-05-12
New construction of a 15 story apartment building complete with hundreds of bulldog heat pumps a doas unit exhaust fans district heating lines and gas piping
Valuation:
$2,752,113
Permit #:
CSHVACC-2407-0043
Status:
issued
Fee:
$18,475
Permit Type:
N/A
Building Type:
N/A
Hvac (alteration of existing system) - commercial & 3+ multi-family
2025-05-28
Small alteration of existing system - relocating some registers and doing small duct changes to meet the new register locations
Valuation:
$2,000
Permit #:
CSHVACC-2501-0018
Status:
final
Fee:
$121
Permit Type:
N/A
Building Type:
N/A
Plumbing (25 or fewer openings) - commercial & 3+ multi-family
2025-06-17
Installing new small kitchen area. 1- prep sink 1- 3 comparable. sink 1- glass washer 1- hand sink 1- grease trap
Valuation:
$6,000
Permit #:
CSPLUMC-2503-0034
Status:
complete
Fee:
$201
Permit Type:
N/A
Building Type:
N/A
Swapping out existing boilers with • furnish and install (1) new dual fuel - les 105hp (~4 mmbtu) hot water boiler and (1) weishaupt wm-gl 20/2-a zm-t. tag: b-1 • furnish and install (1) new natural gas – cleaver-brooks 4 mmbtu modular hydronic boiler cfc-e-700-4000-125hw falcon. tag: b-2 • furnish and install (1) new natural gas – cleaver-brooks 2 mmbtu modular hydronic boiler cfc-e-... see more
Valuation:
N/A
Permit #:
BPV-P2310-028
Status:
final
Fee:
$460
Permit Type:
Add/change to exi...
Building Type:
N/A
Ursa minor brewing build-out change of use demolition (12/29/2020 11:48 am lh3) proposal to renovate the remaining 6900 s.f. of the 11 000 s.f. building for the craft brewery back of house operations resulting in the occupation of the entire building. proposed spaces include office storage loading and receiving
Valuation:
$8,110
Permit #:
BBLDG2101-069
Status:
final
Fee:
$352
Permit Type:
N/A
Building Type:
N/A
Addition to existing hockey arena
Valuation:
$1,175,000
Permit #:
MC-P2411-0003
Status:
final
Fee:
$7,994
Permit Type:
Public school dis...
Building Type:
N/A
Run new gas line from new city meter into home and run gas line for new gas range and furnace
Valuation:
$1,200
Permit #:
CSGASR-2503-0030
Status:
complete
Fee:
$89
Permit Type:
N/A
Building Type:
N/A
Interior remodel/alteration (change of occupancy classification) - commercial & 3+ multi-family
2021-08-25
Ursa minor brewing build-out change of use (12/29/2020 11:48 am lh3) proposal to renovate the remaining 6900 s.f. of the 11 000 s.f. building for the craft brewery back of house operations resulting in the occupation of the entire building. proposed spaces include office storage loading and receiving
Valuation:
$84,148
Permit #:
BBLDG2012-095
Status:
final
Fee:
$1,829
Permit Type:
N/A
Building Type:
N/A
Hvac (new construction) - commercial & 3+ multi-family
2025-05-21
Heating system in transportation building addition
Valuation:
$60,000
Permit #:
CSHVACC-2501-0016
Status:
issued
Fee:
$1,049
Permit Type:
N/A
Building Type:
N/A
Plumbing (over 25 openings or food service) - commercial & 3+ multi-family
2025-06-17
Installation of 1 prep sink 1 3 compartment sink 1 glass washer 1 hand sink and one hydromechanical grease interceptor. install handsink to existing rough in
Valuation:
$12,000
Permit #:
CSPLUMC-2410-0099
Status:
complete
Fee:
$336
Permit Type:
N/A
Building Type:
N/A
Plumbing (over 25 openings or food service) - commercial & 3+ multi-family
2022-12-19
2stanbrook hall addition-st. scholastica campus
Valuation:
$900,000
Permit #:
BPLUM2109-095
Status:
final
Fee:
$6,840
Permit Type:
N/A
Building Type:
N/A
Stanbrook hall addition-st. scholastica campus
Valuation:
$2,516,600
Permit #:
BHVAC2109-091
Status:
expired
Fee:
$14,181
Permit Type:
N/A
Building Type:
N/A
Hvac (alteration of existing system) - commercial & 3+ multi-family
2025-04-02
Alteration of existing system due to movement of interior walls
Valuation:
$10,000
Permit #:
CSHVACC-2501-0011
Status:
final
Fee:
$281
Permit Type:
N/A
Building Type:
N/A
(6329 wynne creek dr) using a 10 dr17 hdpe to sleeve at least 10 feet on both sides of a 6 non-potable water pipe that will go over a potable water line
Valuation:
N/A
Permit #:
PB-P2407-0099
Status:
final
Fee:
$101
Permit Type:
N/A
Building Type:
N/A
Enterprise remodel and change of use of commercial building
Valuation:
$187,500
Permit #:
BBLDG2403-072
Status:
plancheck
Fee:
$2,318
Permit Type:
Alter and change ...
Building Type:
N/A
Adding new bathroom; installing bathtub toilet bathroom sink
Valuation:
$2,500
Permit #:
CSPLUMR-2504-0404
Status:
complete
Fee:
$131
Permit Type:
N/A
Building Type:
N/A
Install new fire sprinkler system
Valuation:
$264,880
Permit #:
FPRO2201-002
Status:
final
Fee:
$3,995
Permit Type:
Sprinkler suppres...
Building Type:
N/A
Demolish erv new duct
Valuation:
$389,000
Permit #:
BHVAC2110-142
Status:
final
Fee:
$3,441
Permit Type:
N/A
Building Type:
N/A
Plumbing (25 or fewer openings) - commercial & 3+ multi-family
2025-10-02
Toilet and lav swap new shower valve and drain shift
Valuation:
$5,000
Permit #:
CSPLUMC-2505-0064
Status:
complete
Fee:
$181
Permit Type:
N/A
Building Type:
N/A
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Verified License
BuildZoom confirmed this contractor's license
Ag o'brien License info
Verified License
| License # | TS745294 |
| Status | Active |
| State | Minnesota |
| Type | Electrical |
- BuildZoom verified this license was active as of May 2026.
Verify this license's status for Ag o'brien at the Minnesota Department of Labor & Industry.
This is a sample of licensing data; click here to access a complete history.
Verified License
| License # | MB004598 |
| Status | Active |
| State | Minnesota |
| Type | Mechanical Contractor Bond |
- BuildZoom verified this license was active as of May 2026.
Verify this license's status for Ag o'brien at the Minnesota Department of Labor & Industry.
This is a sample of licensing data; click here to access a complete history.
Verified License
| License # | PC001260 |
| Status | Active |
| State | Minnesota |
| Type | Plumbing |
- BuildZoom verified this license was active as of January 2026.
Verify this license's status for Ag o'brien at the Minnesota Department of Labor & Industry.
This is a sample of licensing data; click here to access a complete history.
Verified License
| License # | HC720720 |
| Status | Active |
| State | Minnesota |
| Type | High Pressure Piping |
- BuildZoom verified this license was active as of May 2026.
Verify this license's status for Ag o'brien at the Minnesota Department of Labor & Industry.
This is a sample of licensing data; click here to access a complete history.
License Not Required
| Status | Not Required |
- BuildZoom verified in May, 2024 that this contractor does not need a license to be a plumber in Minnesota.
This is a sample of licensing data; click here to access a complete history.
License Not Verified
| License # | R232 |
| Status | Active |
| City | Duluth |
| Type | Plumb & Hvac Con |
- When BuildZoom last verified this license, it had an expiration date of December, 2024. Check the current license status of Ag o'brien with the The City of Duluth, MN
This is a sample of licensing data; click here to access a complete history.
Inactive License
| License # | TS01357 |
| Status | Inactive |
| State | Minnesota |
| Type | Technology Systems Contractor |
- According to the Minnesota Department of Labor & Industry, the status of this license was at one point cancelled. However, this information may have changed. If this is your business, please update your license status.
Check this license's status for Ag o'brien at the Minnesota Department of Labor & Industry.
This is a sample of licensing data; click here to access a complete history.
108
BuildZoom Score
2.2K
Permits
- Building permit records show that Ag o'brien has worked on 2234 permitted projects.
Ag o'brien Employees
AC
Ag Obrien Plumbing And Heating Co
Owner
CB
Charley R. Brown