Updated: Apr 24, 2026
Location and Projects
Address
12748 3RD ST SO, Afton, MN, 55001
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Sentinel Heating and Air
Sentinel Heating and Air, 12748-3 Rd St, Afton, MN holds a Mechanical Contractor Bond license and 1 other 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 Sentinel Heating and Air, we recommend double-checking their license status with the license board and using our bidding system to get competitive quotes.
Sentinel Heating and Air Contact Information
Phone Number: (651) 706-2239
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Address: 12748 3RD ST SO, Afton, MN 55001
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Sentinel Heating and Air Afton
Quality
99
85th percentile
Pro tip:
We generally recommend hiring a contractor with a score higher than 95.
Sentinel Heating and Air has a BuildZoom score of 99, which places them above 85% of 77,973 contractors in Minnesota.
Activity
|
4 projects
|
2025 |
|
6 projects
|
2024 |
|
1 project
|
2023 |
Our building permit records indicate that Sentinel Heating and Air has worked on at least
11.0 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
|
Mechanical projects |
|
11 projects
|
HVAC projects |
Analyzing permits over the last 4 years shows that Sentinel Heating and Air mostly works on
hvac project
and mechanical project
projects.
Pricing
|
2 projects
|
< $5k |
|
3 projects
|
$5k-$20k |
|
2 projects
|
$20k-$50k |
The typical size of their permits is approximately $11,000. This graph shows the distribution of these job values.
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 Sentinel Heating and Air
This is a sample of this contractor's permits. Click here to access their complete permit history.
1b 1c 5b - river cliff 3 units are getting 7 baseboard installed
Valuation:
$1,500
Permit #:
20 24 099736 STM 00 M
Status:
issued
Fee:
N/A
Permit Type:
Steam or hot water
Building Type:
N/A
3b3c - river cliff 2 units are getting 7 baseboard installed
Valuation:
$1,000
Permit #:
20 24 099732 STM 00 M
Status:
issued
Fee:
N/A
Permit Type:
Steam or hot water
Building Type:
N/A
Furnace air conditioning 3 returns and 4 supplies in basement
Valuation:
N/A
Permit #:
EA181020
Status:
final
Fee:
$65
Permit Type:
Furnace & air con...
Building Type:
N/A
Basement addition boiler slant fin s-60edp 60, 000 btu (1) heat loss/gain 24, 480 btu
Valuation:
$9,350
Permit #:
20 22 037615 GAS 00 M
Status:
final
Fee:
N/A
Permit Type:
Gas
Building Type:
N/A
Furnace
Valuation:
N/A
Permit #:
SS044629
Status:
final
Fee:
$156
Permit Type:
Furnace/heating
Building Type:
N/A
No Description Available
Valuation:
N/A
Permit #:
SS044749
Status:
final
Fee:
$116
Permit Type:
Heating and air c...
Building Type:
N/A
Run gas line as required to boiler being replaced
Valuation:
$12,000
Permit #:
20 24 014058 GAS 00 M
Status:
final
Fee:
N/A
Permit Type:
Gas
Building Type:
N/A
Replace boiler located in basement
Valuation:
$12,000
Permit #:
20 24 014055 STM 00 M
Status:
final
Fee:
N/A
Permit Type:
Steam or hot water
Building Type:
N/A
Basement addition boiler
Valuation:
$9,350
Permit #:
20 22 037623 STM 00 M
Status:
final
Fee:
N/A
Permit Type:
Steam or hot water
Building Type:
N/A
Replace peerless boiler
Valuation:
$24,650
Permit #:
SL345532
Status:
final
Fee:
$696
Permit Type:
Alteration nonres...
Building Type:
N/A
Replace/install hot-water boiler
Valuation:
$10,000
Permit #:
WB088564
Status:
final
Fee:
$105
Permit Type:
Hot-water boiler
Building Type:
N/A
Replace/install furance only
Valuation:
$2,995
Permit #:
WB080501
Status:
final
Fee:
$72
Permit Type:
Heating
Building Type:
N/A
Replace/install furance only
Valuation:
$3,325
Permit #:
WB080500
Status:
final
Fee:
$72
Permit Type:
Heating
Building Type:
N/A
No Description Available
Valuation:
N/A
Permit #:
MC2024-022
Status:
final
Fee:
$202
Permit Type:
N/A
Building Type:
N/A
Mechanical
Your permit – bldg912062 – has been processed. please call 612-673-3734 on mondays tuesdays or thursdays between the hours of 8 am and 4 pm to pay via credit card. thank you
Valuation:
N/A
Permit #:
BLDG912067
Status:
complete
Fee:
$133
Permit Type:
N/A
Building Type:
N/A
Mechanical
Repaired leaks on gas line brought up to code. orsat new furnace added air conditioning
Valuation:
N/A
Permit #:
BLDG866201
Status:
complete
Fee:
$133
Permit Type:
N/A
Building Type:
Single family house
Mechanical
Boiler
Valuation:
N/A
Permit #:
BLDG901938
Status:
complete
Fee:
$133
Permit Type:
N/A
Building Type:
N/A
Mechanical residential contractor refrigeration new or replace
2025-09-30
Replace existing minisplit
Valuation:
$6,392
Permit #:
DSIMECR-000322-2025
Status:
issued
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Mechanical residential contractor refrigeration new or replace
2025-09-29
Install 4 head minisplit
Valuation:
$24,025
Permit #:
DSIMECR-000289-2025
Status:
issued
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
: furnace air conditioning 3 returns and 4 supplies in basement old system id: ea181020
Valuation:
N/A
Permit #:
2301-1020-ME
Status:
expired
Fee:
N/A
Permit Type:
N/A
Building Type:
Building use group
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Sentinel Heating and Air Reviews
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Verified License
BuildZoom confirmed this contractor's license
Sentinel Heating and Air License info
Verified License
| License # | MB781475 |
| Status | Active |
| State | Minnesota |
| Type | Mechanical Contractor Bond |
- BuildZoom verified this license was active as of April 2026.
Verify this license's status for Sentinel Heating and Air 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, 2022 that this contractor does not need a license to be a contractor in Minnesota.
This is a sample of licensing data; click here to access a complete history.
99
BuildZoom Score
18
Permits
- Building permit records show that Sentinel Heating and Air has worked on 18 permitted projects.