Updated: Jun 16, 2026
Location and Projects
Address
2520 W 62ND CT, Denver, CO, 80221
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L Nothhaft & Son Plumber
L Nothhaft & Son Inc, 2520 W 62nd Ct, Denver, CO (Owned by: H Nothhaft Ii) holds a Contractor license and 33 other licenses according to the Parker license board.
Their BuildZoom score of 110 ranks in the top 4% of 55,949 Colorado licensed contractors.
Their license was verified as active when we last checked. If you are thinking of hiring L Nothhaft & Son Inc, we recommend double-checking their license status with the license board and using our project planner to get competitive quotes.
L Nothhaft & Son Inc Contact Information
Phone Number: (303) 433-3329
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Address: 2520 W 62ND CT, Denver, CO 80221
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L Nothhaft & Son Inc Denver
Quality
110
96th percentile
Pro tip:
We generally recommend hiring a contractor with a score higher than 95.
L Nothhaft & Son Inc has a BuildZoom score of 110, which places them above 96% of 55,949 contractors in Colorado.
Activity
|
10 projects
|
2025 |
|
15 projects
|
2024 |
|
21 projects
|
2023 |
Our building permit records indicate that L Nothhaft & Son Inc has worked on at least
46.0 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
|
8 projects
|
Home Additions |
|
7 projects
|
Commercial Renovations |
|
31 projects
|
Plumbing projects |
Analyzing permits over the last 4 years shows that L Nothhaft & Son Inc mostly works on
plumbing project
and home addition
projects.
Pricing
|
4 projects
|
< $5k |
|
5 projects
|
$5k-$20k |
|
6 projects
|
$20k-$50k |
|
2 projects
|
$50k-$100k |
|
2 projects
|
$1mil+ |
The typical size of their permits is approximately $19,600. 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.
Demolish 16 existing g5-56 concealers on the wet system. install 16 new brass uprights for temporary coverage. install 21 new g5-56 concealers for new ceiling layout and 3 new dry pendent type sprinklers in new freezer. (fsr13)
Valuation:
$0
Permit #:
FIR2025-00324
Status:
issued
Fee:
$0
Permit Type:
N/A
Building Type:
N/A
1. inside work only starting at a 6 flange inside the building. 2. double check valve type backflow preventer with test assembly. 3. fire department connection outside the valve room with knox caps. 4. single zone wet pipe to be provided in phase 1. 5. install 46 brass upright sprinklers at the exposed construction areas and 1 chrome recessed pendent at the restroom ceiling. 6. provid... see more
Valuation:
$28,500
Permit #:
2024-FIRE-0005185
Status:
final
Fee:
$378
Permit Type:
N/A
Building Type:
N/A
1. inside work only starting at a 6 flange inside the building. 2. double check valve type backflow preventer with test assembly. 3. fire department connection outside the valve room with knox caps. 4. single zone wet pipe to be provided in phase 1. 5. two dry valves to be installed in future phases. 6. install 44 brass upright sprinklers at the exposed construction areas 1 dry sidewa... see more
Valuation:
$29,000
Permit #:
2023-FIRE-0002562
Status:
canceled
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Remove 4 sprinklers on level 00 and relocate 1 sprinkler on level 1. install 4 new brass upright sprinklers as required on level 00. install 1 new brass upright sprinkler for coverage outside the new wall. addition 1 new brass upright sprinkler in the existing exit room
Valuation:
$6,620
Permit #:
2022-FIRE-0005785
Status:
final
Fee:
$175
Permit Type:
N/A
Building Type:
N/A
Demolish 1 pendent sprinkler under duct that is no longer needed under duct work. replace 6 old s.r. brass uprights 165° with 6 new s.r. brass uprights 286° (fsr13)
Valuation:
N/A
Permit #:
FIR2025-00372
Status:
issued
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Remainder of foam deluge system submittal in service yard and wet sprinklers in utility building (fsn13)
Valuation:
N/A
Permit #:
FIR2025-00169
Status:
issued
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Alter existing fire sprinkler system located in the roof/ceiling of the slc of the fi building and install a new wet pipe fire sprinkler system from the existing fire sprinkler system located in the vibration lab of the fi building per nfpa 13 see bld-nre2020-00221 for general building permit. see fir2022-00372 for fire alarm permit. ball aerospace vibration lab fi building. (fsr13)
Valuation:
N/A
Permit #:
FIR2022-00341
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Demolition the existing dry pipe fire sprinkler system. replace with a new wet pipe fire sprinkler system. combination of light hazard and ordinary hazard group 2 conversion to a white box spec. see bld-nre2022-00084 for general building permit. see fir2022-00302 for fire alarm permit. spec suite (fsn13)
Valuation:
N/A
Permit #:
FIR2022-00288
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Install 7 new chrome recessed sprinklers throughout the suspended ceilings. install 3 new chrome recessed sidewall type sprinklers and plug 6 existing sprinklers for new ceiling layout
Valuation:
$3,600
Permit #:
2022-FIRE-0006369
Status:
final
Fee:
$151
Permit Type:
N/A
Building Type:
N/A
Install 7 new chrome recessed sprinklers throughout the suspended ceilings. install 3 new chrome recessed sidewall type sprinklers and plug 6 existing sprinklers for new ceiling layout
Valuation:
$3,600
Permit #:
2022-FIRE-0006369
Status:
final
Fee:
$151
Permit Type:
N/A
Building Type:
N/A
Tenant improvement. work of relocating and replacing 3 existing sprinklers and adding 6 new sprinklers to match existing. thank you
Valuation:
$6,200
Permit #:
2024-FIRE-0003408
Status:
final
Fee:
$175
Permit Type:
N/A
Building Type:
N/A
Relocate and replace 12 new chrome k 8.0 type fire sprinklers for new ceiling layout. see bld-nre2022-00183 for general building permit. see fir2023-00471 for fire alarm permit. ball aerospace chem labs 150e & 150f. (fsr13)
Valuation:
N/A
Permit #:
FIR2023-00062
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Walk through permit under 75 heads. scope is to relocate and replace 34 recessed type sprinklers and addition 39 new white recessed type sprinklers required for coverage and new ceiling layout. thank you
Valuation:
$26,900
Permit #:
2023-FIRE-0005713
Status:
final
Fee:
$336
Permit Type:
N/A
Building Type:
N/A
Addition and relocate sprinkler heads based on wall layout changes. see bld-nre2023-00022 for general building permit. see fir2023-00206 for fire alarm permit. ball aerospace co 6 mission ops center (fsr13)
Valuation:
N/A
Permit #:
FIR2023-00172
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Replace non-functional fire pump jockey pump jockey pump controller and fire pump controller. replace 200 40 year old existing upright sprinkler heads due to age of existing sprinkler heads
Valuation:
$46,000
Permit #:
2022-FIRE-0001968
Status:
final
Fee:
$582
Permit Type:
N/A
Building Type:
N/A
Adam burger with denver water instructed owner to install a backflow preventer. adam burger:303-628-5969 description of work: install a new 4 backflow preventer
Valuation:
$4,300
Permit #:
2024-FIRE-0004281
Status:
issued
Fee:
$159
Permit Type:
N/A
Building Type:
N/A
Adam burger with denver water instructed owner to install a backflow preventer. adam burger:303-628-5969 description of work: install a new 4 backflow preventer
Valuation:
$4,300
Permit #:
2024-FIRE-0004281
Status:
issued
Fee:
$159
Permit Type:
N/A
Building Type:
N/A
9 temporary upright sprinklers on a scope of work letter. (fsr13)
Valuation:
N/A
Permit #:
FIR2025-00153
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Bae - amc paint clean station - fire sprinkler tenant improvement
Valuation:
N/A
Permit #:
FIRE24-0525
Status:
issued
Fee:
$175
Permit Type:
Commercial fire s...
Building Type:
N/A
Extend sprinklers to service write-up area. adjust sprinkler locations in remodel area of volvo showroom. replace central gb recalled sprinklers above ceiling of volvo showroom and at ceiling level and above ceiling level of cadillac showroom
Valuation:
$89,500
Permit #:
2020-FIRE-0000705
Status:
final
Fee:
$1,050
Permit Type:
N/A
Building Type:
N/A
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L Nothhaft & Son Inc Reviews
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Verified License
BuildZoom confirmed this contractor's license
L Nothhaft & Son Inc License info
Verified License
| License # | AEC6832 |
| Status | Active |
| Town | Parker |
| Type | Contractor |
- BuildZoom verified this license was active as of May 2026.
Verify this license's status for L Nothhaft & Son Inc at the The Town of Parker, Colorado.
This is a sample of licensing data; click here to access a complete history.
Verified License
| License # | CR23-0837 |
| Status | Active |
| Town | Castle Rock |
| Type | Single Trade |
| Date Issued | 07-18-2025 |
- BuildZoom verified this license was active as of April 2026.
Verify this license's status for L Nothhaft & Son Inc at the Castle Rock Town, Colorado.
This is a sample of licensing data; click here to access a complete history.
License Not Verified
| License # | 21-002788 |
| Status | Active |
| City | Lafayette |
| Type | Special Contractor |
- When BuildZoom last verified this license, it had an expiration date of December, 2025. Check the current license status of L Nothhaft & Son Inc with the City of Lafayette
This is a sample of licensing data; click here to access a complete history.
Verified License
| License # | AEC000204 |
| Status | Active |
| City | Littleton |
| Type | Contractor |
| Date Issued | 12-08-2025 |
- BuildZoom verified this license was active as of May 2026.
Verify this license's status for L Nothhaft & Son Inc at the The City of Littleton, CO.
This is a sample of licensing data; click here to access a complete history.
Verified License
| License # | CL-006163-2025 |
| Status | Active |
| City | Centennial |
| Type | Trade |
| Class | Trade |
| Date Issued | 05-13-2026 |
- BuildZoom verified this license was active as of June 2026.
Verify this license's status for L Nothhaft & Son Inc at the Centennial Community Development Contractor Licensing.
This is a sample of licensing data; click here to access a complete history.
Verified License
| License # | 0002223 |
| Status | Active |
| Pueblo | |
| Type | Fire Protection |
- BuildZoom verified this license was active as of June 2026.
Verify this license's status for L Nothhaft & Son Inc at the Pueblo regional Building Department.
This is a sample of licensing data; click here to access a complete history.
Verified License
| License # | FS-000030 |
| Status | Active |
| City | Aspen |
- BuildZoom verified this license was active as of June 2026.
Verify this license's status for L Nothhaft & Son Inc at the City of Aspen Contractor Licensing.
This is a sample of licensing data; click here to access a complete history.
Verified License
| License # | FS000030 |
| Status | Active |
| City | Aspen |
| Type | Fire Sprinkler System Installer |
- BuildZoom verified this license was active as of June 2026.
Verify this license's status for L Nothhaft & Son Inc at the City of Aspen Contractor Licensing.
This is a sample of licensing data; click here to access a complete history.
Verified License
| License # | FS-000030 |
| Status | Active |
| City | Aspen |
| Type | Fire Sprinkler System Installer |
- BuildZoom verified this license was active as of June 2026.
Verify this license's status for L Nothhaft & Son Inc at the City of Aspen Contractor Licensing.
This is a sample of licensing data; click here to access a complete history.
Verified License
| License # | AEC5803 |
| Status | Active |
| City | Arvada |
| Type | Contractor |
| Date Issued | 05-07-2026 |
- BuildZoom verified this license was active as of May 2026.
Verify this license's status for L Nothhaft & Son Inc at the The City of Arvada, Colorado.
This is a sample of licensing data; click here to access a complete history.
Verified License
| License # | LIC-0004058-FIRESS |
| Status | Active |
| City | Boulder |
| Type | Fire |
| Class | Class A Fire Sprinkler Systems |
| Date Issued | 08-19-2025 |
- BuildZoom verified this license was active as of June 2026.
Verify this license's status for L Nothhaft & Son Inc at the Boulder Licensing Board.
This is a sample of licensing data; click here to access a complete history.
Verified License
| License # | 061130067 |
| Status | Active |
| City | Westminster |
| Type | General Contractor |
| Date Issued | 09-11-2025 |
- BuildZoom verified this license was active as of June 2026.
Verify this license's status for L Nothhaft & Son Inc at the City of Westminster, Colorado.
This is a sample of licensing data; click here to access a complete history.
Verified License
| Status | Active |
| City | Aurora |
| Type | Fire Spinkler Systems Contractor |
- 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 # | LCC2015006268 |
| Status | Active |
| City | Thornton |
| Type | Class D Fire Systems Expires 2026 12 06 |
- BuildZoom verified this license was active as of June 2026.
Verify this license's status for L Nothhaft & Son Inc at the Thornton City Development Contractor License.
This is a sample of licensing data; click here to access a complete history.
Verified License
| Status | Active |
| City | Denver |
| Type | Fire Pro A |
- BuildZoom has not verified this license since September, 2024.
This is a sample of licensing data; click here to access a complete history.
License Not Verified
| License # | SPC3702788 |
| Status | Active |
| City | Lafayette |
| Type | Special Contractor |
- When BuildZoom last verified this license, it had an expiration date of December, 2022. Check the current license status of L Nothhaft & Son Inc with the City of Lafayette
This is a sample of licensing data; click here to access a complete history.
License Not Verified
| License # | LIC-0004058 |
| Status | Active |
| City | Boulder |
| Type | Fire |
| Class | Class A Fire Sprinkler Systems |
- When BuildZoom last verified this license, it had an expiration date of December, 2018. Check the current license status of L Nothhaft & Son Inc with the Boulder Licensing Board
This is a sample of licensing data; click here to access a complete history.
License Not Verified
| License # | 27528 |
| Status | Active |
| City | Thornton |
| Type | Fire |
- When BuildZoom last verified this license, it had an expiration date of January, 2017. Check the current license status of L Nothhaft & Son 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 # | 0004058 |
| Status | Active |
| City | Boulder |
| Type | Fire Class A Fire Sprinkler Systems |
- When BuildZoom last verified this license, it had an expiration date of January, 2016. Check the current license status of L Nothhaft & Son Inc with the Boulder Licensing Board
This is a sample of licensing data; click here to access a complete history.
License Not Verified
| License # | 25598 |
| Status | Active |
| City | Thornton |
| Type | Fire |
- When BuildZoom last verified this license, it had an expiration date of January, 2017. Check the current license status of L Nothhaft & Son 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 # | 3B-0100 |
| Status | Active |
| City | Arvada |
| Type | Bid Contractor, Residential C |
- When BuildZoom last verified this license, it had an expiration date of January, 2016. Check the current license status of L Nothhaft & Son Inc 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-13-01120 |
| Status | Active |
| City | Centennial |
| Type | Fire Protection Contractor |
- When BuildZoom last verified this license, it had an expiration date of January, 2016. Check the current license status of L Nothhaft & Son Inc with the Centennial Community Development Contractor Licensing
This is a sample of licensing data; click here to access a complete history.
License Not Verified
| License # | 23657 |
| Status | Active |
| City | Thornton |
| Type | Fire |
- When BuildZoom last verified this license, it had an expiration date of January, 2016. Check the current license status of L Nothhaft & Son Inc with the Thornton City Development Contractor License
This is a sample of licensing data; click here to access a complete history.
Unverified License
| License # | 06-0371 |
| Status | Unable To Verify |
| Town | Castle Rock |
| Type | Single Trade |
- 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.
Inactive License
| License # | CL-004996-2024 |
| Status | Inactive |
| City | Centennial |
| Type | Trade |
| Class | Trade |
- 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 L Nothhaft & Son Inc at the Centennial Community Development Contractor Licensing.
This is a sample of licensing data; click here to access a complete history.
Inactive License
| License # | F-040019 |
| Status | Inactive |
| City | Aspen |
| Type | Fire Alarm Installation |
- According to the City of Aspen 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 L Nothhaft & Son Inc at the City of Aspen Contractor Licensing.
This is a sample of licensing data; click here to access a complete history.
Inactive License
| License # | F-040019 |
| Status | Inactive |
| City | Aspen |
| Type | Fire Alarm Installation |
- According to the City of Aspen 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 L Nothhaft & Son Inc at the City of Aspen Contractor Licensing.
This is a sample of licensing data; click here to access a complete history.
Inactive License
| Status | Inactive |
| City | Denver |
| Type | Fire Pro A |
- 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 # | F-040019 |
| Status | Inactive |
| City | Aspen |
| Type | Fire Alarm Installation |
- According to the City of Aspen 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 L Nothhaft & Son Inc at the City of Aspen Contractor Licensing.
This is a sample of licensing data; click here to access a complete history.
Inactive License
| Status | Inactive |
| County | Jefferson County |
| Type | Class A Mechanical (Unrestricted) |
| Class | Unrestricted |
- According to the Jefferson County Licensed Contractors, 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 |
| County | Jefferson County |
| Type | Class A Mechanical (Unrestricted) |
| Class | Unrestricted |
- According to the Jefferson County Licensed Contractors, 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 # | 0002223 |
| Status | Inactive |
| Pueblo | |
| Type | Fire Protection |
- According to the Pueblo regional Building Department, 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 L Nothhaft & Son Inc at the Pueblo regional Building Department.
This is a sample of licensing data; click here to access a complete history.
Inactive License
| License # | FS-897 |
| 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 L Nothhaft & Son Inc at the City of Fort Collins.
This is a sample of licensing data; click here to access a complete history.
Inactive License
| License # | 2080690 |
| Status | Inactive |
| County | Mesa County |
| Type | City Contractor |
- According to the Mesa County, 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 L Nothhaft & Son Inc at the Mesa County, CO.
This is a sample of licensing data; click here to access a complete history.
110
BuildZoom Score
Insured
| Insurer | Nautilus Insurance Company |
Insured
| Workers Comp Provider | Pinnacol |
702
Permits
- Building permit records show that L Nothhaft & Son Inc has worked on 702 permitted projects.
L Nothhaft & Son Inc Employees
DH
Doreen Holtry
Contact
HN
H Nothhaft
HI
H Nothhaft Ii
Owner
HN
Harold Nothhaft
Owner
HI
Harold Nothhaft Ii
Owner
HI
Harold V Nothhaft Ii
Owner
HI
Harry V. Nothhaft Ii
Owner
LI
L Nothhaft & Son Inc
Resident C
LD
L. Nothhaft & Son, Inc D8
Owner
NN
Nicholas Nothhaft
Co Owner
NN
Nick Nothhaft
Owner
NI
Nick Nothhaft Ii
Contact
S
Son
Owner