Updated: Apr 22, 2026
Location and Projects
Address
3479 124TH CIR NE, Blaine, MN, 55449
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Grey Duct Heating & Air Conditioning LLC
Grey Duct Heating & Air Conditioning LLC, 3479-124 Th Cir NE, Blaine, MN holds a Mechanical Contractor Bond license according to the Minnesota license board.
Their BuildZoom score of 101 ranks in the top 12% of 77,973 Minnesota licensed contractors.
Their license was verified as active when we last checked. If you are thinking of hiring Grey Duct Heating & Air Conditioning LLC, we recommend double-checking their license status with the license board and using our bidding system to get competitive quotes.
Grey Duct Heating & Air Conditioning LLC Services
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Grey Duct Heating & Air Conditioning LLC Contact Information
Phone Number: (763) 272-4872
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Address: 3479 124TH CIR NE, Blaine, MN 55449
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Grey Duct Heating & Air Conditioning LLC Blaine
Quality
101
88th percentile
Pro tip:
We generally recommend hiring a contractor with a score higher than 95.
Grey Duct Heating & Air Conditioning LLC has a BuildZoom score of 101, which places them above 88% of 77,973 contractors in Minnesota.
Activity
|
6 projects
|
2025 |
|
8 projects
|
2024 |
|
1 project
|
2023 |
Our building permit records indicate that Grey Duct Heating & Air Conditioning LLC has worked on at least
15.0 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
|
15 projects
|
Mechanical projects |
|
15 projects
|
HVAC projects |
Analyzing permits over the last 4 years shows that Grey Duct Heating & Air Conditioning LLC mostly works on
hvac project
and mechanical project
projects.
Pricing
|
3 projects
|
< $5k |
|
3 projects
|
$5k-$20k |
The typical size of their permits is approximately $1,450. 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 Grey Duct Heating & Air Conditioning LLC
This is a sample of this contractor's permits. Click here to access their complete permit history.
Furnace & air conditioning new/replace (residential)
Valuation:
N/A
Permit #:
CY089730
Status:
issued
Fee:
$155
Permit Type:
Residential furna...
Building Type:
N/A
Gas piping (residential)
Valuation:
$0
Permit #:
CY090034
Status:
issued
Fee:
$71
Permit Type:
Residential gas p...
Building Type:
N/A
Replace air conditioner and horizontal ceiling coil
Valuation:
N/A
Permit #:
M25-0609
Status:
final
Fee:
$103
Permit Type:
Installation/repl...
Building Type:
N/A
Replace air conditioner furnace hrv and humidifier
Valuation:
N/A
Permit #:
B24-02630
Status:
final
Fee:
$201
Permit Type:
Mechanical
Building Type:
N/A
Replacing furnace and air conditioning system
Valuation:
N/A
Permit #:
B24-04192
Status:
final
Fee:
$151
Permit Type:
Mechanical
Building Type:
N/A
Replace furnace and air conditioning
Valuation:
$9,125
Permit #:
SL344453
Status:
final
Fee:
$86
Permit Type:
Furnace and air c...
Building Type:
N/A
Alteration residential ductwork
Valuation:
$1,000
Permit #:
SL346115
Status:
final
Fee:
$93
Permit Type:
Alteration reside...
Building Type:
N/A
Air conditioner/furnace air cleaner-0
Valuation:
N/A
Permit #:
CR235849
Status:
final
Fee:
$76
Permit Type:
N/A
Building Type:
N/A
Replace ball valve on dryer gas line. air cleaner-0
Valuation:
N/A
Permit #:
NH071356
Status:
final
Fee:
$26
Permit Type:
Undefined
Building Type:
N/A
Install bathroom fan
Valuation:
$1,450
Permit #:
SL346114
Status:
final
Fee:
$76
Permit Type:
Alteration reside...
Building Type:
N/A
No Description Available
Valuation:
N/A
Permit #:
M25-0364
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
Residential
Install new furnace & air conditioning
Valuation:
N/A
Permit #:
MG408879
Status:
final
Fee:
$51
Permit Type:
Furnace & air con...
Building Type:
N/A
Replace furnace & air conditioning
Valuation:
$7,265
Permit #:
EP189917
Status:
final
Fee:
$214
Permit Type:
Furnace/AC-replac...
Building Type:
N/A
Master bathroom rmdl hvac
Valuation:
$1,000
Permit #:
EP190777
Status:
final
Fee:
$41
Permit Type:
Duct work
Building Type:
N/A
Replace furnace and air conditioning
Valuation:
$14,500
Permit #:
SL352630
Status:
final
Fee:
$86
Permit Type:
Furnace and air c...
Building Type:
N/A
Replace furnace
Valuation:
N/A
Permit #:
B25-03843
Status:
final
Fee:
$78
Permit Type:
Mechanical
Building Type:
N/A
Install garage unit heater
Valuation:
N/A
Permit #:
B25-04142
Status:
issued
Fee:
$78
Permit Type:
Mechanical
Building Type:
N/A
Mechanical
Replace furnace and air conditioning
Valuation:
N/A
Permit #:
BLDG1104415
Status:
issued
Fee:
$133
Permit Type:
N/A
Building Type:
Single family house
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Grey Duct Heating & Air Conditioning LLC Reviews
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Verified License
BuildZoom confirmed this contractor's license
Grey Duct Heating & Air Conditioning LLC License info
Verified License
| License # | MB805449 |
| Status | Active |
| State | Minnesota |
| Type | Mechanical Contractor Bond |
- BuildZoom verified this license was active as of April 2026.
Verify this license's status for Grey Duct Heating & Air Conditioning LLC at the Minnesota Department of Labor & Industry.
This is a sample of licensing data; click here to access a complete history.
101
BuildZoom Score
16
Permits
- Building permit records show that Grey Duct Heating & Air Conditioning LLC has worked on 16 permitted projects.