Updated: Jun 06, 2026
Location and Projects
Address
3101 E 52ND AVE, Denver, CO, 80216
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Frost Line Mechanical LLC
Frost Line Mechanical LLC, 3101 E 52nd Ave, Denver, CO (Employee: Robert Neill) holds a Refrigeration A license and 9 other licenses according to the Denver license board.
Their BuildZoom score of 101 ranks in the top 12% of 55,949 Colorado licensed contractors.
Their license was verified as active when we last checked. If you are thinking of hiring Frost Line Mechanical LLC, we recommend double-checking their license status with the license board and using our project planner to get competitive quotes.
Frost Line Mechanical LLC Contact Information
Phone Number: (720) 934-5623
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Address: 3101 E 52ND AVE, Denver, CO 80216
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Frost Line Mechanical LLC Denver
Quality
101
88th percentile
Pro tip:
We generally recommend hiring a contractor with a score higher than 95.
Frost Line Mechanical LLC has a BuildZoom score of 101, which places them above 88% of 55,949 contractors in Colorado.
Activity
|
3 projects
|
2025 |
|
2 projects
|
2024 |
Our building permit records indicate that Frost Line Mechanical LLC has worked on at least
5.0 projects over the past 2 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
|
1 project
|
$5k-$20k |
|
1 project
|
$100k-$250k |
|
1 project
|
$250k-$500k |
|
1 project
|
$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.
Building Permits by Frost Line Mechanical LLC
This is a sample of this contractor's permits. Click here to access their complete permit history.
Installation of unenclosed engineered steel decking on roof and installation of mechanical oxidizer equipment on steel decking. work will include other trades to be added at a later time. this is a food production facility
Valuation:
$310,845
Permit #:
2024-LOG-0001858
Status:
approved
Fee:
$976
Permit Type:
N/A
Building Type:
N/A
This project is an approximately 2 900 square foot renovation within an existing dairy plant of approximately 208 573 square feet to accommodate mixing equipment and asl room located in denver colorado
Valuation:
$2,805,000
Permit #:
2023-BOILERAC-0000423
Status:
final
Fee:
$11,973
Permit Type:
N/A
Building Type:
Commercial
Installation of unenclosed engineered steel decking on roof and installation of mechanical oxidizer equipment on steel decking. work will include other trades to be added at a later time. this is a food production facility
Valuation:
N/A
Permit #:
2024-COMMCON-0000781
Status:
issued
Fee:
$1,050
Permit Type:
N/A
Building Type:
N/A
Replace failed mua and condenser supervise curb replacement joist sisters reconnect gas-electric
Valuation:
$150,000
Permit #:
2022-BOILERAC-0000422
Status:
issued
Fee:
$1,050
Permit Type:
N/A
Building Type:
Commercial
Replacement of building main heating boilers
Valuation:
$102,187
Permit #:
MECH25-00362
Status:
issued
Fee:
$2,520
Permit Type:
Commercial
Building Type:
N/A
Replace 3-ton remote terminal unit with new 3_ton remote terminal unit
Valuation:
$17,216
Permit #:
25NGN-00845
Status:
issued
Fee:
$828
Permit Type:
N/A
Building Type:
N/A
Install heating boiler indirect heater. increase gas line
Valuation:
N/A
Permit #:
BP-21-01107
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Replace 100 mbh boiler with new slant-fin se-105ng 105mbh boiler
Valuation:
$7,100
Permit #:
BDP19-1527
Status:
issued
Fee:
$210
Permit Type:
N/A
Building Type:
N/A
Replace existing heating boiler system with like for like equipment
Valuation:
$14,000
Permit #:
BP-18-00399
Status:
final
Fee:
$237
Permit Type:
N/A
Building Type:
N/A
Mechanical permit to replace 76 gas-fired furnaces (70k btu/h; afue 80%) and 85 evaporative coils in individual units at boulder meridian retirement community. packet materials and attached spreadsheet lists units getting replacement furnaces and coils. no structural scope.
Valuation:
N/A
Permit #:
PMT2017-05294
Status:
issued
Fee:
N/A
Permit Type:
N/A
Building Type:
Multifamily Dwell...
Mechanical permit to replace 84 rooftop condensers (18k btu/h; 13 seer) at boulder meridian retirement community. packet materials and attached spreadsheet lists units getting replacement condensers. condensers will be smaller than existing. no structural scope.
Valuation:
N/A
Permit #:
PMT2017-05272
Status:
issued
Fee:
N/A
Permit Type:
N/A
Building Type:
Multifamily Dwell...
Mechanical permit to replace 76 gas-fired furnaces (70k btu/h; afue 80%) and 85 evaporative coils in individual units at boulder meridian retirement community. packet materials and attached spreadsheet lists units getting replacement furnaces and coils. no structural scope
Valuation:
$0
Permit #:
PMT2017-05294
Status:
Issued
Fee:
N/A
Permit Type:
Residential
Building Type:
Multifamily dwell...
Mechanical permit to replace 84 rooftop condensers (18k btu/h; 13 seer) at boulder meridian retirement community. packet materials and attached spreadsheet lists units getting replacement condensers. condensers will be smaller than existing. no structural scope
Valuation:
$0
Permit #:
PMT2017-05272
Status:
Issued
Fee:
N/A
Permit Type:
Residential
Building Type:
Multifamily dwell...
Install boiler 500k btu's ; (2) hot water htrs 200k btu's ea
Valuation:
$39,000
Permit #:
M14-0069
Status:
final
Fee:
$1,249
Permit Type:
Apartment
Building Type:
N/A
Repair approx 30 gas line
Valuation:
$1,500
Permit #:
1061061
Status:
issued
Fee:
$65
Permit Type:
Mechanical permit
Building Type:
N/A
No Description Available
Valuation:
$220,000
Permit #:
00275943
Status:
N/A
Fee:
$1,442
Permit Type:
Repair / replace
Building Type:
N/A
Gas piping to existing rooftop unit from new meter
Valuation:
$4,500
Permit #:
2019-MECH-0000849
Status:
final
Fee:
N/A
Permit Type:
N/A
Building Type:
Commercial
Gas piping to existing rooftop unit from new meter
Valuation:
$4,500
Permit #:
2018-BOILERAC-0000942
Status:
final
Fee:
$159
Permit Type:
N/A
Building Type:
Commercial
Furnace
Valuation:
$3,000
Permit #:
BLD-2015-01718
Status:
complete
Fee:
$87
Permit Type:
N/A
Building Type:
N/A
Replace 2 ton remote terminal unit 60k
Valuation:
$7,640
Permit #:
1309514
Status:
issued
Fee:
$230
Permit Type:
Mechanical permit
Building Type:
N/A
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Frost Line Mechanical LLC Reviews
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Verified License
BuildZoom confirmed this contractor's license
Frost Line Mechanical LLC License info
Verified License
| Status | Active |
| City | Denver |
| Type | Refrigeration A |
- BuildZoom verified this license was active as of May 2026.
This is a sample of licensing data; click here to access a complete history.
Verified License
| Status | Active |
| City | Denver |
| Type | Steam & Hot Water |
- BuildZoom verified this license was active as of May 2026.
This is a sample of licensing data; click here to access a complete history.
License Not Verified
| License # | LIC-0011733 |
| Status | Active |
| City | Boulder |
| Type | Mechanical |
| Class | Class A All UMC Work |
- When BuildZoom last verified this license, it had an expiration date of December, 2018. Check the current license status of Frost Line Mechanical LLC with the Boulder Licensing Board
This is a sample of licensing data; click here to access a complete history.
License Not Verified
| License # | 27024 |
| Status | Active |
| City | Thornton |
| Type | Mechanical |
- When BuildZoom last verified this license, it had an expiration date of May, 2018. Check the current license status of Frost Line Mechanical LLC with the Thornton City Development Contractor License
This is a sample of licensing data; click here to access a complete history.
Inactive License
| License # | LCC202400109 |
| Status | Inactive |
| City | Thornton |
| Type | Class D Boiler, Class D Mechanical |
- According to the Thornton City Development Contractor License, 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 Frost Line Mechanical LLC at the Thornton City Development Contractor License.
This is a sample of licensing data; click here to access a complete history.
Inactive License
| License # | LIC-0011733-MECHA |
| Status | Inactive |
| City | Boulder |
| Type | Mechanical |
| Class | Class A All Mechanical Work |
- According to the Boulder Licensing Board, 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 Frost Line Mechanical LLC at the Boulder Licensing Board.
This is a sample of licensing data; click here to access a complete history.
Inactive License
| Status | Inactive |
| City | Denver |
- According to the City and County of Denver Community Planning and Development, 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.
This is a sample of licensing data; click here to access a complete history.
Inactive License
| Status | Inactive |
| City | Aurora |
| Type | Mechanical Systems Contractor |
- According to the Aurora, Colorado, 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.
This is a sample of licensing data; click here to access a complete history.
Inactive License
| License # | MA080103 |
| Status | Inactive |
| County | Douglas County |
| Type | Mechanical A |
- According to the Douglas County Building Division, 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 Frost Line Mechanical LLC at the Douglas County Building Division.
This is a sample of licensing data; click here to access a complete history.
Inactive License
| License # | LCC2015063131 |
| Status | Inactive |
| City | Thornton |
| Type | Class D Mechanical |
- According to the Thornton City Development Contractor License, 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 Frost Line Mechanical LLC at the Thornton City Development Contractor License.
This is a sample of licensing data; click here to access a complete history.
101
BuildZoom Score
45
Permits
- Building permit records show that Frost Line Mechanical LLC has worked on 45 permitted projects.
Frost Line Mechanical LLC Employees
FM
Frost Line Mechanical
Owner
RN
Robert Neill
Owner