Updated: Jun 02, 2026
Location and Projects
Address
1773 WILDFIRE RD, Estes Park, CO, 80517
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Karl R Ertl HVAC/Mechanical Contractor
Karl R Ertl, 1773 Wildfire Rd, Estes Park, CO (Owned by: Karl Ertl) holds a Sub Contractor license and 19 other licenses according to the Fort Collins license board.
Their BuildZoom score of 103 ranks in the top 10% of 55,949 Colorado licensed contractors.
Their license was verified as active when we last checked. If you are thinking of hiring Karl R Ertl, we recommend double-checking their license status with the license board and using our project planner to get competitive quotes.
Karl R Ertl Contact Information
Phone Number: (970) 227-1263
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Address: 1773 WILDFIRE RD, Estes Park, CO 80517
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Karl R Ertl Estes Park
Quality
103
90th percentile
Pro tip:
We generally recommend hiring a contractor with a score higher than 95.
Karl R Ertl has a BuildZoom score of 103, which places them above 90% of 55,949 contractors in Colorado.
Activity
|
3 projects
|
2024 |
|
6 projects
|
2023 |
Our building permit records indicate that Karl R Ertl has worked on at least
9.0 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
|
5 projects
|
Mechanical projects |
|
3 projects
|
HVAC projects |
Analyzing permits over the last 4 years shows that Karl R Ertl mostly works on
mechanical project
and hvac project
projects.
Pricing
|
1 project
|
< $5k |
|
3 projects
|
$5k-$20k |
|
4 projects
|
$20k-$50k |
The typical size of their permits is approximately $8,125. 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.
This is a sample of this contractor's permits. Click here to access their complete permit history.
Residential - addition living room
Valuation:
$20,497
Permit #:
23-RES0568
Status:
applied
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Residential - kitchen remodel/remove wall/add steel beam
Valuation:
$40,937
Permit #:
21-RES0277
Status:
applied
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Residential - air conditioning replacement
Valuation:
$12,000
Permit #:
22-MISC2866
Status:
applied
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Residential - boiler & gas piping
Valuation:
$22,444
Permit #:
23-MISC0090
Status:
applied
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Residential - air conditioning & furnace replacement
Valuation:
$10,000
Permit #:
22-MISC0890
Status:
applied
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Residential - furnace & air conditioning replacement
Valuation:
$12,000
Permit #:
21-MISC1575
Status:
applied
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Residential - boiler replacement
Valuation:
$23,000
Permit #:
24-MISC3629
Status:
applied
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Residential - furnace replacement
Valuation:
$8,125
Permit #:
22-MISC2808
Status:
applied
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Residential - interior remodel
Valuation:
$21,439
Permit #:
21-RES0379
Status:
applied
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Electrical (for generators apply for a gas piping permit)
2022-12-27
Electrical - rv hookup
Valuation:
$2,000
Permit #:
22-MISC1373
Status:
applied
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Residential - boiler replacement
Valuation:
$16,400
Permit #:
21-MISC0321
Status:
applied
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Residential - boiler replacement
Valuation:
$16,400
Permit #:
21-MISC0321
Status:
applied
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Residential - replace furnace/ac
Valuation:
$11,500
Permit #:
21-MISC0332
Status:
applied
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Residential - replace furnace/ac
Valuation:
$11,500
Permit #:
21-MISC0331
Status:
applied
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Residential - furnace replacement
Valuation:
$4,800
Permit #:
21-MISC0330
Status:
applied
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Residential - air conditioning & furnace replacement
Valuation:
$10,000
Permit #:
22-MISC0890
Status:
applied
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Residential - furnace replacement
Valuation:
$7,000
Permit #:
23-MISC2315
Status:
applied
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Residential - furnace replacement
Valuation:
$7,000
Permit #:
23-MISC2315
Status:
applied
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Residential - install tankless wh
Valuation:
$4,000
Permit #:
19-MISC2811
Status:
applied
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Residential - replace furnace
Valuation:
$3,000
Permit #:
19-MISC2810
Status:
applied
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
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Karl R Ertl Reviews
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Verified License
BuildZoom confirmed this contractor's license
Karl R Ertl License info
Verified License
| License # | MP-606 |
| Status | Active |
| City | Fort Collins |
| Type | Sub Contractor |
- BuildZoom verified this license was active as of March 2026.
Verify this license's status for Karl R Ertl at the City of Fort Collins.
This is a sample of licensing data; click here to access a complete history.
Verified License
| License # | ME-1041 |
| Status | Active |
| City | Fort Collins |
| Type | Sub Contractor |
- BuildZoom verified this license was active as of March 2026.
Verify this license's status for Karl R Ertl at the City of Fort Collins.
This is a sample of licensing data; click here to access a complete history.
Verified License
| License # | EL3333 |
| Status | Active |
| County | Larimer County, Co |
| Type | Electrical Registration |
| Class | Electrical |
- BuildZoom verified this license was active as of January 2026.
Verify this license's status for Karl R Ertl at the Larimer County.
This is a sample of licensing data; click here to access a complete history.
Verified License
| License # | 1027 |
| Status | Active |
| State | Colorado |
| Type | Plumbing Contractor |
- BuildZoom verified this license was active as of June 2026.
Verify this license's status for Karl R Ertl at the Colorado Division of Professions and Occupations.
This is a sample of licensing data; click here to access a complete history.
Verified License
| License # | 4031 |
| Status | Active |
| State | Colorado |
| Type | Electrical Contractor |
- BuildZoom verified this license was active as of June 2026.
Verify this license's status for Karl R Ertl at the Colorado Division of Professions and Occupations.
This is a sample of licensing data; click here to access a complete history.
Verified License
| License # | 4690 |
| Status | Active |
| State | Colorado |
| Type | Electrician |
- BuildZoom verified this license was active as of June 2026.
Verify this license's status for Karl R Ertl at the Colorado Division of Professions and Occupations.
This is a sample of licensing data; click here to access a complete history.
Verified License
| License # | 179885 |
| Status | Active |
| State | Colorado |
| Type | Plumber |
- BuildZoom verified this license was active as of June 2026.
Verify this license's status for Karl R Ertl at the Colorado Division of Professions and Occupations.
This is a sample of licensing data; click here to access a complete history.
Verified License
| License # | PL2476 |
| Status | Active |
| County | Larimer County, Co |
| Type | Plumbing Registration |
| Class | Plumbing |
- BuildZoom verified this license was active as of January 2026.
Verify this license's status for Karl R Ertl at the Larimer County.
This is a sample of licensing data; click here to access a complete history.
Verified License
| License # | CL0384 |
| Status | Active |
| County | Larimer County, Co |
| Type | Mechanical Commercial |
| Class | Commercial |
| Date Issued | 03-30-2026 |
- BuildZoom verified this license was active as of June 2026.
Verify this license's status for Karl R Ertl at the Larimer County.
This is a sample of licensing data; click here to access a complete history.
Verified License
| License # | CON-11-0189 |
| Status | Active |
| County | Boulder County |
| Type | Commercial Mechanical Installations And Repair |
- BuildZoom verified this license was active as of November 2025.
Verify this license's status for Karl R Ertl at the Boulder County Land Use Department.
This is a sample of licensing data; click here to access a complete history.
License Not Verified
| License # | ME.0004690 |
| Status | Active |
| State | Colorado |
| Type | Master Electrician |
- When BuildZoom last verified this license, it had an expiration date of February, 2019. Check the current license status of Karl R Ertl with the Colorado Division of Professions and Occupations
This is a sample of licensing data; click here to access a complete history.
License Not Verified
| License # | EC.0004031 |
| Status | Active |
| State | Colorado |
| Type | Electrical Contractor |
- When BuildZoom last verified this license, it had an expiration date of February, 2019. Check the current license status of Karl R Ertl with the Colorado Division of Professions and Occupations
This is a sample of licensing data; click here to access a complete history.
License Not Verified
| License # | MP.00179885 |
| Status | Active |
| State | Colorado |
| Type | Master Plumber |
- When BuildZoom last verified this license, it had an expiration date of February, 2019. Check the current license status of Karl R Ertl with the Colorado Division of Professions and Occupations
This is a sample of licensing data; click here to access a complete history.
License Not Verified
| License # | PC.0001027 |
| Status | Active |
| State | Colorado |
| Type | Plumbing Contractor |
- When BuildZoom last verified this license, it had an expiration date of February, 2019. Check the current license status of Karl R Ertl with the Colorado Division of Professions and Occupations
This is a sample of licensing data; click here to access a complete history.
License Not Verified
| License # | H-1987 |
| Status | Active |
| Type | Sub Contractor |
- When BuildZoom last verified this license, it had an expiration date of May, 2016.
This is a sample of licensing data; click here to access a complete history.
License Not Verified
| License # | MP-606 |
| Status | Active |
| Type | Sub Contractor |
- When BuildZoom last verified this license, it had an expiration date of May, 2016.
This is a sample of licensing data; click here to access a complete history.
License Not Verified
| License # | ME-1041 |
| Status | Active |
| Type | Sub Contractor |
- When BuildZoom last verified this license, it had an expiration date of May, 2016.
This is a sample of licensing data; click here to access a complete history.
License Not Verified
| License # | ME-4690 |
| Status | Active |
| State | Colorado |
| Type | Master Electrician |
- When BuildZoom last verified this license, it had an expiration date of February, 2015. Check the current license status of Karl R Ertl with the Colorado Division of Professions and Occupations
This is a sample of licensing data; click here to access a complete history.
Inactive License
| License # | H-1987 |
| Status | Inactive |
| City | Fort Collins |
| Type | Sub Contractor |
- According to the City of Fort Collins, 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 Karl R Ertl at the City of Fort Collins.
This is a sample of licensing data; click here to access a complete history.
Inactive License
| License # | CL0383 |
| Status | Inactive |
| County | Larimer County, Co |
| Type | Other |
| Class | Other |
- According to the Larimer County, 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 Karl R Ertl at the Larimer County.
This is a sample of licensing data; click here to access a complete history.
103
BuildZoom Score
Insured
| Insurer | United Fire & Casualty Company |
42
Permits
- Building permit records show that Karl R Ertl has worked on 42 permitted projects.
Karl R Ertl Employees
EM
Ertl Mechanical
EI
Ertl Mechanical Inc
KE
Karl Ertl
Owner
KE
Karl R Ertl
Owner