Updated: Jun 30, 2026
Location and Projects
Address
143 LEONARD LN, Northglenn, CO, 80233
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Leonardo's Mechanical & Plumbing
Leonardo's Mechanical & Plumbing at 143 LEONARD LN, Northglenn, CO 80233, held a HVAC/Mechanical Contractor license (#AEC9999) with the Arvada contractors license board with an expiration date of 03-19-2026. We last verified the license was expired on 06-29-2026.
Their BuildZoom score is 0 because we haven’t been able to verify an active license. As a result, they’re not ranked in the top 50% of 55,949 Colorado contractors.
If you’re thinking about hiring them, we recommend double-checking their license status with your local licensing authority. Alternatively, use our project planner to be easily matched to qualified, licensed professionals in your area.
Leonardo's Mechanical & Plumbing Services
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Leonardo's Mechanical & Plumbing Contact Information
Phone Number: (720) 495-5880
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Address: 143 LEONARD LN, Northglenn, CO 80233
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Leonardo's Mechanical & Plumbing Northglenn
Quality
Alert*
Pro tip:
We generally recommend hiring a contractor with a score higher than 95.
*No active license on file. If you are Leonardo's Mechanical & Plumbing, click “This is My Business” to update your information.
Activity
|
10 projects
|
2025 |
|
9 projects
|
2024 |
|
8 projects
|
2023 |
Our building permit records indicate that Leonardo's Mechanical & Plumbing has worked on at least
27.0 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
|
Home Additions |
|
3 projects
|
Commercial Renovations |
Analyzing permits over the last 4 years shows that Leonardo's Mechanical & Plumbing mostly works on
home addition
and commercial renovation
projects.
Pricing
|
8 projects
|
< $5k |
|
6 projects
|
$5k-$20k |
|
1 project
|
$20k-$50k |
|
3 projects
|
$50k-$100k |
The typical size of their permits is approximately $6,800. 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 Leonardo's Mechanical & Plumbing
This is a sample of this contractor's permits. Click here to access their complete permit history.
Upgrading the plumbing water lines and drain lines from the existing. 5 fixtures been remodel no water heather replacement needed. water lines are been replace from galvanized to pex water lines. replace drain pipes from cast iron to dwv
Valuation:
$7,200
Permit #:
2025-PLUMB-0004915
Status:
final
Fee:
$83
Permit Type:
N/A
Building Type:
Single family res...
1906 sf wood frame single family dwelling on 1781 sf unfinished basement - no garage - 15x19 covered patio 7x5 covered porch - air conditioning & basement plumbing included - wood frame w/stucco - 10/19/20 permit expiration warning emailed to owner (trj) - 11/5/20 adminsitrative extension request for an additional 30 days - new expiration 12/16/20 (trj) - 11/16/20 permit expiraiton wa... see more
Valuation:
N/A
Permit #:
RSN18-0149
Status:
final
Fee:
$6,265
Permit Type:
N/A
Building Type:
N/A
New plumbing install 2 tubs 5 toilets 7 lavs 2 washer boxes 1 kitchen sink 1 dishwasher prep 1 ice maker line 2 hose bibs 2 showers 1 w.h. 50 gallon 40, 000 btu 1 gas to fireplace 1 gas to furnace 1 gas to w.h 1 gas to stove
Valuation:
N/A
Permit #:
PLB2024-00098
Status:
canceled
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Pressure test added 4’ of new 1/2 gas black iron scheduled 40 to existing gas furnace from existing gas line do to leaked
Valuation:
$600
Permit #:
2025-PLUMB-0001502
Status:
issued
Fee:
$35
Permit Type:
N/A
Building Type:
Duplex
Repair gas leak at existing gas line install new 4’ of 1/2 gas line to existing furnace
Valuation:
$600
Permit #:
2025-PLUMB-0001545
Status:
issued
Fee:
$35
Permit Type:
N/A
Building Type:
Duplex
2441 n broadway st #303 - condo - renovations 3rd floor bathroom - demolish tub addition shower guest bathroom (3rd floor) - change vanity and shower (same location)
Valuation:
$9,000
Permit #:
2024-PLUMB-0005612
Status:
issued
Fee:
$191
Permit Type:
N/A
Building Type:
N/A
Installing new sinks toilets showers and tub kitchen sink washing machine box
Valuation:
$3,500
Permit #:
2025-PLUMB-0002824
Status:
issued
Fee:
$51
Permit Type:
N/A
Building Type:
Single family res...
New swimming pool under gas line and install the equipment and connect boiler
Valuation:
$1,300
Permit #:
2025-PLUMB-0001483
Status:
issued
Fee:
$35
Permit Type:
N/A
Building Type:
Single family res...
Complete plumbing on a new addition for a master bedroom with 4 piece bathroom
Valuation:
$8,000
Permit #:
2025-PLUMB-0005949
Status:
final
Fee:
$83
Permit Type:
N/A
Building Type:
Single family res...
Gas leak detected by xcel. gas leak repaired need pressure t
Valuation:
$800
Permit #:
RMIS24-02427
Status:
expired
Fee:
$95
Permit Type:
Gas line
Building Type:
N/A
Gas leak detected by xcel. leak repaired (basement unit)
Valuation:
$800
Permit #:
RMIS24-02426
Status:
expired
Fee:
$95
Permit Type:
Gas line
Building Type:
N/A
Leak detected by xcel. gas leak repaired
Valuation:
$800
Permit #:
RMIS24-02429
Status:
applied
Fee:
$95
Permit Type:
2 or more appliances
Building Type:
N/A
30x70 2017 karsten irc modular home on 2100 sf unfinished basement w 723 sf attached garage - 18x8 covered porch - includes air conditioning - for principal dwelling
Valuation:
$224,737
Permit #:
RSN17-0138
Status:
final
Fee:
$4,345
Permit Type:
N/A
Building Type:
N/A
Phased commercial addition (thru finish )
Valuation:
$50,000
Permit #:
O90462
Status:
filed
Fee:
$100
Permit Type:
438 (commercial a...
Building Type:
N/A
Au - private pool
Valuation:
$70,000
Permit #:
23-02881
Status:
approved
Fee:
$1,756
Permit Type:
New
Building Type:
Accessory use
Bedroom addition/window replacement & siding
Valuation:
N/A
Permit #:
MSC161167
Status:
final
Fee:
N/A
Permit Type:
Addition attached
Building Type:
N/A
Commercial interior finish
Valuation:
$60,000
Permit #:
P21978
Status:
final
Fee:
$100
Permit Type:
327 (stores and o...
Building Type:
N/A
Commercial interior finish
Valuation:
$60,000
Permit #:
Details
Status:
filed
Fee:
$100
Permit Type:
327 (stores and o...
Building Type:
N/A
Plumbing sewer lines water lines and gas lines
Valuation:
$6,800
Permit #:
2024-PLUMB-0011609
Status:
issued
Fee:
$75
Permit Type:
N/A
Building Type:
Single family res...
Au - private pool
Valuation:
N/A
Permit #:
23-05176
Status:
plancheck
Fee:
N/A
Permit Type:
New
Building Type:
Accessory use
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Leonardo's Mechanical & Plumbing License info
Inactive License
| License # | AEC9999 |
| 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 Leonardo's Mechanical & Plumbing at the The City of Arvada, Colorado.
This is a sample of licensing data; click here to access a complete history.
Inactive License
| License # | CL-006130-2025 |
| Status | Inactive |
| City | Centennial |
| Type | Plumbing |
| Class | Plumbing |
- According to the Centennial Community Development Contractor Licensing, 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 Leonardo's Mechanical & Plumbing at the Centennial Community Development Contractor Licensing.
This is a sample of licensing data; click here to access a complete history.
Inactive License
| License # | P100239 |
| Status | Inactive |
| County | Douglas County |
| Type | Plumbing |
- 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 Leonardo's Mechanical & Plumbing at the Douglas County Building Division.
This is a sample of licensing data; click here to access a complete history.
ALERT*
BuildZoom Score
- How the BuildZoom Score works
- *No active license on file. If you are Leonardo's Mechanical & Plumbing, click “This is My Business” to update your information.
144
Permits
- Building permit records show that Leonardo's Mechanical & Plumbing has worked on 144 permitted projects.
Leonardo's Mechanical & Plumbing Employees
DH
Dale Headley
Owner
LL
Leonardos Plumbing And Mechanical Llc
Owner