Updated: Jul 11, 2026
Location and Projects
Address
4635 S MARIPOSA DR, Englewood, CO, 80110
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Mj Mechanical Inc
Mj Mechanical Inc, 4635 S Mariposa Dr, Englewood, CO (Owned by: Joseph Hetherington) holds a Refrigeration B license and 12 other licenses according to the Denver license board.
Their BuildZoom score of 105 ranks in the top 8% of 55,949 Colorado licensed contractors.
Their license was verified as active when we last checked. If you are thinking of hiring Mj Mechanical Inc, we recommend double-checking their license status with the license board and using our bidding system to get competitive quotes.
Mj Mechanical Inc Contact Information
Phone Number: (303) 725-5050
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Address: 4635 S MARIPOSA DR, Englewood, CO 80110
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Mj Mechanical Inc Englewood
Quality
105
92nd percentile
Pro tip:
We generally recommend hiring a contractor with a score higher than 95.
Mj Mechanical Inc has a BuildZoom score of 105, which places them above 92% of 55,949 contractors in Colorado.
Activity
|
7 projects
|
2025 |
|
11 projects
|
2024 |
|
25 projects
|
2023 |
Our building permit records indicate that Mj Mechanical Inc has worked on at least
43.0 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
|
4 projects
|
New Constructions |
|
30 projects
|
Mechanical projects |
|
25 projects
|
HVAC projects |
Analyzing permits over the last 4 years shows that Mj Mechanical Inc mostly works on
mechanical project
and hvac project
projects.
Pricing
|
1 project
|
< $5k |
|
24 projects
|
$5k-$20k |
|
1 project
|
$20k-$50k |
|
2 projects
|
$50k-$100k |
|
9 projects
|
$100k-$250k |
|
1 project
|
$250k-$500k |
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.
Mj Mechanical Inc Reviews
5 out of 5 stars, based on
1
review
-
By Kay R.October 9, 20192nd Opinion on Furnace Repair/Replaecment$0
This is a sample of this contractor's permits. Click here to access their complete permit history.
We are doing two systems. one furnace will be in the basement with ductwork for basement and first floor the second furnace will be on the third floor over floor furnace with duct work on second floor
Valuation:
$18,000
Permit #:
2024-MECH-0005330
Status:
final
Fee:
$163
Permit Type:
N/A
Building Type:
Duplex
Mini split multi zone system with floor cassette for first floor celling cassette for second floor and ducted unit for the third floor with the out door unit in the roof
Valuation:
$7,000
Permit #:
2024-MECH-0004472
Status:
final
Fee:
$75
Permit Type:
N/A
Building Type:
Single family res...
Mini split multi zone system with floor cassette for first floor celling cassette for second floor and ducted unit for third floor whit the out door unit in the roof
Valuation:
$7,000
Permit #:
2024-MECH-0004473
Status:
final
Fee:
$75
Permit Type:
N/A
Building Type:
Single family res...
Mini split multi zone system with floor cassette for first floor celling cassette second floor and ducted unit in the third floor with the out door unit in the roof
Valuation:
$7,000
Permit #:
2024-MECH-0004470
Status:
final
Fee:
$75
Permit Type:
N/A
Building Type:
Single family res...
Mini split multi zone system with floor cassette for first floor celling cassette second floor and ducted unit for the third floor with the out door unit in the roof
Valuation:
$7,000
Permit #:
2024-MECH-0004469
Status:
final
Fee:
$75
Permit Type:
N/A
Building Type:
Single family res...
One furnace and air conditioning condenser for basement and first floor. one two zone mini split system (one ducted one high wall unit) for the upper floor
Valuation:
$18,000
Permit #:
2024-MECH-0002802
Status:
final
Fee:
$163
Permit Type:
N/A
Building Type:
Single family res...
We have two systems. one furnace will be in the basement for basement and first floor the second furnace are for second floor and third floor
Valuation:
$18,000
Permit #:
2024-MECH-0005828
Status:
final
Fee:
$163
Permit Type:
N/A
Building Type:
Duplex
We are doing one system with the furnace in the basement for basement first and second floor and high wall mini split for third floor
Valuation:
$18,000
Permit #:
2024-MECH-0005331
Status:
final
Fee:
$163
Permit Type:
N/A
Building Type:
Duplex
We have two systems.one furnace will be in the basement for basement and first floor the second furnace will be in second floor
Valuation:
$18,000
Permit #:
2024-MECH-0005829
Status:
final
Fee:
$163
Permit Type:
N/A
Building Type:
Duplex
Install hvac systems including furnaces duct work air conditioning units dryer and cooktop venting and bathroom fans
Valuation:
$12,000
Permit #:
2023-MECH-0001093
Status:
final
Fee:
$115
Permit Type:
N/A
Building Type:
Single family res...
Hvac work including ductwork furnaces air conditioning units cooktop and dryer venting and bathroom fans
Valuation:
$20,000
Permit #:
2023-MECH-0003593
Status:
final
Fee:
$179
Permit Type:
N/A
Building Type:
Single family res...
Hvac work for addition including furnaces air conditioning units cooktop and dryer venting and bathroom fans
Valuation:
$9,500
Permit #:
2022-MECH-0009221
Status:
final
Fee:
$99
Permit Type:
N/A
Building Type:
Single family res...
Install hvac system including furnace air conditioning duct work cooktop and dryer venting bathroom bathroom fans
Valuation:
$15,000
Permit #:
2022-MECH-0006284
Status:
final
Fee:
$139
Permit Type:
N/A
Building Type:
Single family res...
Install hvac system including ductwork furnaces air conditioning units range hood venting dryer venting and bathroom fans
Valuation:
$14,500
Permit #:
2021-MECH-0009765
Status:
final
Fee:
$139
Permit Type:
N/A
Building Type:
Single family res...
Hvac work including furnaces air conditioning units ductwork and bathroom fans
Valuation:
$12,500
Permit #:
2023-MECH-0000012
Status:
final
Fee:
$123
Permit Type:
N/A
Building Type:
Single family res...
Rs - residential
Valuation:
$320,000
Permit #:
21-03837
Status:
issued
Fee:
$5,743
Permit Type:
Addition
Building Type:
Residential
Install hvac systems including furnaces air conditioning units ductwork cooktop and dryer venting and bathroom fans
Valuation:
$12,000
Permit #:
2022-MECH-0010127
Status:
issued
Fee:
$115
Permit Type:
N/A
Building Type:
Single family res...
Install hvac system including duct work furnaces air conditioning units cooktop and dryer venting and bathroom fans
Valuation:
$14,000
Permit #:
2022-MECH-0001565
Status:
final
Fee:
$131
Permit Type:
N/A
Building Type:
Single family res...
Hvac work including furnaces air conditioning units cooktop venting dryer venting duct work and bathroom fans
Valuation:
$21,000
Permit #:
2022-MECH-0002938
Status:
final
Fee:
$187
Permit Type:
N/A
Building Type:
Single family res...
Hvac work including furnaces air conditioning units cooktop venting dryer venting duct work and bathroom fans
Valuation:
$22,000
Permit #:
2022-MECH-0002937
Status:
final
Fee:
$195
Permit Type:
N/A
Building Type:
Single family res...
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Verified License
BuildZoom confirmed this contractor's license
Mj Mechanical Inc License info
Verified License
| Status | Active |
| City | Denver |
| Type | Refrigeration B |
- BuildZoom verified this license was active as of July 2026.
This is a sample of licensing data; click here to access a complete history.
Verified License
| License # | MA050489 |
| Status | Active |
| County | Douglas County |
| Type | Mechanical A |
- BuildZoom verified this license was active as of September 2025.
Verify this license's status for Mj Mechanical Inc at the Douglas County Building Division.
This is a sample of licensing data; click here to access a complete history.
License Not Verified
| Status | Active |
| County | Jefferson County |
| Type | Class B Mechanical (Up To 3 Stories) |
| Class | Up to 3 Stories |
- When BuildZoom last verified this license, it had an expiration date of December, 2023. Check the current license status of Mj Mechanical Inc with the Jefferson County Licensed Contractors
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 October, 2021. Check the current license status of Mj Mechanical Inc 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 # | 26679 |
| Status | Active |
| City | Thornton |
| Type | Mechanical |
- When BuildZoom last verified this license, it had an expiration date of October, 2016. Check the current license status of Mj Mechanical Inc with the Thornton City Development Contractor License
This is a sample of licensing data; click here to access a complete history.
License Not Verified
| License # | CEN-13-07541 |
| Status | Active |
| City | Centennial |
| Type | HVAC Contractor |
- When BuildZoom last verified this license, it had an expiration date of October, 2016. Check the current license status of Mj Mechanical Inc with the Centennial Community Development Contractor Licensing
This is a sample of licensing data; click here to access a complete history.
Inactive License
| Status | Inactive |
| City | Denver |
| Type | H & V B |
- 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
| License # | MEC0701473 |
| Status | Inactive |
| City | Lafayette |
| Type | Mechanical Contractor |
- According to the City of Lafayette, 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 Mj Mechanical Inc at the City of Lafayette.
This is a sample of licensing data; click here to access a complete history.
Inactive License
| License # | 110130019 |
| Status | Inactive |
| City | Westminster |
| Type | General Contractor |
- According to the City of Westminster, 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.
Check this license's status for Mj Mechanical Inc at the City of Westminster, Colorado.
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 # | D11083 |
| Status | Inactive |
| City | Littleton |
| Type | Contractor |
- According to the The City of Littleton, CO, 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 Mj Mechanical Inc at the The City of Littleton, CO.
This is a sample of licensing data; click here to access a complete history.
Inactive License
| License # | AEC4793 |
| Status | Inactive |
| City | Arvada |
| Type | Contractor |
- According to the The City of Arvada, 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.
Check this license's status for Mj Mechanical Inc at the The City of Arvada, Colorado.
This is a sample of licensing data; click here to access a complete history.
Inactive License
| License # | LCC2015063059 |
| 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 Mj Mechanical Inc at the Thornton City Development Contractor License.
This is a sample of licensing data; click here to access a complete history.
105
BuildZoom Score
766
Permits
- Building permit records show that Mj Mechanical Inc has worked on 766 permitted projects.
Mj Mechanical Inc Employees
JH
Joe Hethenngton
Owner
JH
Joe Hetherington
Co Owner
JH
Joseph Hetherington
Owner
MI
Mj Mechanical Inc
Owner
MI
Mj Mechnical Inc
Mechanical
Joe Hetherington of MJ Mechanical is absolutely amazing. He went ouf of his way to give me a 2nd opinion on my furnace. As a result he saved me $5000 on a needless furnace replacement. He is now the go-to HVAC person for me to refer my clients, friends and family and of course, me.