Updated: Jun 06, 2026
Location and Projects
Address
10835 N Dover St, Westminster, CO, 80021
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Efficient Comfort HVAC/Mechanical Contractor
Efficient Comfort, 10835 N Dover St, Westminster, CO (Owned by: Joshua Blackmon & Joanna Jensen) holds a Hot Water license and 12 other licenses according to the Denver license board.
Their BuildZoom score of 116 ranks in the top 2% of 55,949 Colorado licensed contractors.
Their license was verified as active when we last checked. If you are thinking of hiring Efficient Comfort, we recommend double-checking their license status with the license board and using our project planner to get competitive quotes.
Efficient Comfort Contact Information
Phone Number: (720) 837-4651
Address: 10835 N Dover St, Westminster, CO 80021
Efficient Comfort Westminster
Quality
116
98th percentile
Pro tip:
We generally recommend hiring a contractor with a score higher than 95.
Efficient Comfort has a BuildZoom score of 116, which places them above 98% of 55,949 contractors in Colorado.
Activity
|
49 projects
|
2025 |
|
33 projects
|
2024 |
|
72 projects
|
2023 |
Our building permit records indicate that Efficient Comfort has worked on at least
154.0 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
|
38 projects
|
Home Additions |
|
143 projects
|
HVAC projects |
|
60 projects
|
Mechanical projects |
Analyzing permits over the last 4 years shows that Efficient Comfort mostly works on
hvac project
and mechanical project
projects.
Pricing
|
7 projects
|
< $5k |
|
82 projects
|
$5k-$20k |
|
10 projects
|
$20k-$50k |
The typical size of their permits is approximately $13,000. 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.
This is a sample of this contractor's permits. Click here to access their complete permit history.
Replace furnace and air conditioning with 5 ton heat pump 24 seer. furnace 80% eff 132k btu. addition 2 head mini split 30k btu 20 seer one head in master bedroom one head in guest room
Valuation:
$19,900
Permit #:
BP-25-01827
Status:
complete
Fee:
$756
Permit Type:
N/A
Building Type:
Residential singl...
Remove and replace existing furnace and air conditioning air conditioning 4 ton 19 seer furnace btu 100 000 afue 98%
Valuation:
$25,000
Permit #:
2025-MECH-0002402
Status:
issued
Fee:
$219
Permit Type:
N/A
Building Type:
Single family res...
Remove existing furnace and air conditioning replace with new furnace and air conditioning 80 000 btu/h input. 97% afue. 3 ton (36 000 btu/h) cooling capacity. 19 seer
Valuation:
$18,000
Permit #:
BLD-2024-06804
Status:
expired
Fee:
$462
Permit Type:
N/A
Building Type:
N/A
Remove existing furnace and air conditioning replace with following: 80% afue 66 000 btu 1.5 ton air conditioning 14 seer
Valuation:
$12,000
Permit #:
2025-MECH-0001731
Status:
final
Fee:
$115
Permit Type:
N/A
Building Type:
Single family res...
Remove existing furnace and air conditioning and in the same location replace with 60k btu 96% furnace and 2 ton 16.5 seer air conditioning
Valuation:
$17,245
Permit #:
BP-25-02015
Status:
issued
Fee:
$661
Permit Type:
N/A
Building Type:
Residential singl...
Remove existing furnace and air conditioning and in same location replace with 98.3% 80k btu furnace and 23 seer 4 ton heat pump
Valuation:
$24,375
Permit #:
BP-25-02013
Status:
complete
Fee:
$907
Permit Type:
N/A
Building Type:
Residential singl...
Remove and replace existing furnace and ac: 2 ton air conditioning 16 seer 66 000 80% afue
Valuation:
$13,000
Permit #:
25NGN-00559
Status:
issued
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Remove existing furnace and air conditioning replace with the following: 80 000 btu/h input. 96% afue furnace. 3 ton heat pump 24 seer 2nd air conditioning new (1.5 ton 16 seer)
Valuation:
$23,000
Permit #:
BP-24-04459
Status:
issued
Fee:
$882
Permit Type:
N/A
Building Type:
Residential singl...
Addition 2 head ductless mini split one outdoor condenser and two indoor units
Valuation:
$19,000
Permit #:
BP-25-0048
Status:
issued
Fee:
$740
Permit Type:
N/A
Building Type:
N/A
Remove existing equipment and replace with like: 60000 btu 96 afue 2 ton 14 seer
Valuation:
$15,000
Permit #:
2024-MECH-0008849
Status:
final
Fee:
$139
Permit Type:
N/A
Building Type:
Duplex
Remove old furnace and replace addition new air conditioning. electrical work being done by axicon electric 88 000 btu 80% afue 2.5 ton air conditioning 16 seer
Valuation:
$13,707
Permit #:
2023-MECH-0001538
Status:
final
Fee:
$131
Permit Type:
N/A
Building Type:
Single family res...
Remove existing furnace and air conditioning install a new heat pump & furnace
Valuation:
N/A
Permit #:
MEC2025-00230
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Remove furnace air conditioning & furnace & replace with heat pump & furnace with the following: heat pump 3 ton 24 seer furnace 80, 000 97% afue
Valuation:
$21,900
Permit #:
MEP-4540-2023
Status:
expired
Fee:
$910
Permit Type:
N/A
Building Type:
N/A
Remove and replace existing furnace and air conditioning replace with the following equipment: 80, 000 btu furnace 97% afue 3 ton air conditioning 24 seer
Valuation:
N/A
Permit #:
MEC2023-00574
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Remove existing furnace and air conditioning and replace with new furnace and heat pump 80% afue 88 000 btu 2 ton 16 seer
Valuation:
$14,195
Permit #:
BP-25-01950
Status:
complete
Fee:
$555
Permit Type:
N/A
Building Type:
Residential singl...
Remove existing furnace and air conditioning and replace with like equipment
Valuation:
N/A
Permit #:
MEC2024-01962
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Remove existing furnace and air conditioning replace with the following: 66 000 btu 80% afue 2 ton 18 seer
Valuation:
$18,200
Permit #:
BP-25-02246
Status:
complete
Fee:
$694
Permit Type:
N/A
Building Type:
Residential singl...
Addition single head mini split 1.5 ton. installed in bedroom
Valuation:
$5,963
Permit #:
BP-25-01375
Status:
issued
Fee:
$289
Permit Type:
N/A
Building Type:
Residential singl...
Remove existing air conditioning & replace with 2.5 ton 16 seer
Valuation:
N/A
Permit #:
MEC2024-01958
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Replace furnace and air conditioning with the following size and efficiency: furnace 80% afue 66 000 btu heat pump 2 ton 24 seer
Valuation:
$12,000
Permit #:
2023-MECH-0003530
Status:
issued
Fee:
$115
Permit Type:
N/A
Building Type:
Single family res...
Efficient Comfort Reviews
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Recent Buildzoom Projects
Verified License
BuildZoom confirmed this contractor's license
Efficient Comfort License info
Verified License
| Status | Active |
| City | Denver |
| Type | Hot Water |
- BuildZoom verified this license was active as of June 2026.
This is a sample of licensing data; click here to access a complete history.
Verified License
| License # | LIC-0009415-MECHA |
| Status | Active |
| City | Boulder |
| Type | Mechanical |
| Class | Class A All Mechanical Work |
| Date Issued | 10-22-2025 |
- BuildZoom verified this license was active as of June 2026.
Verify this license's status for Efficient Comfort at the Boulder Licensing Board.
This is a sample of licensing data; click here to access a complete history.
Verified License
| License # | CON-14-0204 |
| 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 Efficient Comfort 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 # | MEC2868239 |
| Status | Active |
| City | Lafayette |
| Type | Mechanical Contractor |
- When BuildZoom last verified this license, it had an expiration date of August, 2020. Check the current license status of Efficient Comfort with the City of Lafayette
This is a sample of licensing data; click here to access a complete history.
License Not Verified
| License # | MEC2868239 |
| Status | Active |
| City | Lafayette |
| Type | Mechanical Contractor |
- When BuildZoom last verified this license, it had an expiration date of April, 2022. Check the current license status of Efficient Comfort with the City of Lafayette
This is a sample of licensing data; click here to access a complete history.
License Not Verified
| Status | Active |
| City | Denver |
- When BuildZoom last verified this license, it had an expiration date of April, 2023. Check the current license status of Efficient Comfort with the City and County of Denver Community Planning and Development
This is a sample of licensing data; click here to access a complete history.
License Not Verified
| License # | LIC-0009415 |
| 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 Efficient Comfort with the Boulder Licensing Board
This is a sample of licensing data; click here to access a complete history.
License Not Verified
| License # | 0009415 |
| Status | Active |
| City | Boulder |
| Type | Mechanical Class A All Umc Work |
- When BuildZoom last verified this license, it had an expiration date of June, 2016. Check the current license status of Efficient Comfort with the Boulder Licensing Board
This is a sample of licensing data; click here to access a complete history.
License Not Verified
| License # | 7M-0898 |
| Status | Active |
| City | Arvada |
| Type | Bid Contractor, Mechanical |
- When BuildZoom last verified this license, it had an expiration date of June, 2016. Check the current license status of Efficient Comfort with the The City of Arvada, Colorado
This is a sample of licensing data; click here to access a complete history.
License Not Verified
| License # | CEN-13-07869 |
| Status | Active |
| City | Centennial |
| Type | HVAC Contractor |
- When BuildZoom last verified this license, it had an expiration date of June, 2016. Check the current license status of Efficient Comfort with the Centennial Community Development Contractor Licensing
This is a sample of licensing data; click here to access a complete history.
Inactive License
| License # | A190208 |
| Status | Inactive |
| County | Douglas County |
| Type | General A |
- According to the Douglas County Building Division, the status of this license was at one point cancelled. However, this information may have changed.
Check this license's status for Efficient Comfort at the Douglas County Building Division.
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.
This is a sample of licensing data; click here to access a complete history.
Unverified License
| License # | AEC5511 |
| Status | Unable To Verify |
| City | Arvada |
| Type | Contractor |
| Date Issued | 05-05-2026 |
- BuildZoom was not able to verify this license with the licensing board
This is a sample of licensing data; click here to access a complete history.
116
BuildZoom Score
311
Permits
- Building permit records show that Efficient Comfort has worked on 311 permitted projects.
Efficient Comfort Employees
CC
Co Service Techs Dba Efficient Comfort
Mechanical
JB
Josh Blackman
Owner
JB
Joshua Blackmon
Responsible Person
JJ
Joshua Blackmon & Joanna Jensen
Owner