Updated: Jul 28, 2026
Location and Projects
Address
4179 Wolff st, Denver, CO, 80212
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Proper Plumbing LLC
Proper Plumbing LLC, 4179 Wolff St, Denver, CO (Owned by: Matthew Williams) holds a Contractor license and 17 other licenses according to the Parker 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 Proper Plumbing LLC, we recommend double-checking their license status with the license board and using our bidding system to get competitive quotes.
Proper Plumbing LLC Services
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Proper Plumbing LLC Contact Information
Phone Number: (720) 675-7167
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Address: 4179 Wolff st, Denver, CO 80212
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Proper Plumbing LLC Denver
Quality
105
92nd percentile
Pro tip:
We generally recommend hiring a contractor with a score higher than 95.
Proper Plumbing LLC has a BuildZoom score of 105, which places them above 92% of 55,949 contractors in Colorado.
Activity
|
4 projects
|
2024 |
|
9 projects
|
2023 |
Our building permit records indicate that Proper Plumbing LLC has worked on at least
13.0 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
|
Home Additions |
|
11 projects
|
Plumbing projects |
Analyzing permits over the last 4 years shows that Proper Plumbing LLC mostly works on
plumbing project
and home addition
projects.
Pricing
|
1 project
|
< $5k |
|
3 projects
|
$5k-$20k |
|
2 projects
|
$20k-$50k |
|
1 project
|
$500k-$1mil |
The typical size of their permits is approximately $18,000. 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.
Expansion of a marijuana husbandry facility into partially unoccupied adjacent space. the first floor will be finished to addition two flower rooms. the second floor¿s existing office operations will be expanded along with dry and trim rooms. four new rtus will be added between the building and the parking lot
Valuation:
$10,000
Permit #:
2020-PLUMB-0011556
Status:
final
Fee:
$99
Permit Type:
N/A
Building Type:
N/A
Run new sewer and water from existing house to new building in backyard. instal rough water and drainage for fukll bathroom kitchen and tankless water heater as well as install fixtures
Valuation:
$6,000
Permit #:
2020-PLUMB-0004939
Status:
final
Fee:
$67
Permit Type:
N/A
Building Type:
Single family res...
Tenant finish first tenant in space welton street cafe 2883 welton street restaurant build-out in existing unoccupied white box space
Valuation:
$32,000
Permit #:
2022-PLUMB-0009614
Status:
final
Fee:
$376
Permit Type:
N/A
Building Type:
Commercial
Basic home remodel/upgrade. adding 2 gas fireplaces a powder room and moving a couple fixtures to meet new bathroom layouts
Valuation:
$15,000
Permit #:
2022-PLUMB-0002976
Status:
issued
Fee:
$139
Permit Type:
N/A
Building Type:
Single family res...
Addition steam unit. install multiple head shower valve system replace tub tub faucet and toilet
Valuation:
$3,500
Permit #:
2023-PLUMB-0004029
Status:
final
Fee:
$51
Permit Type:
N/A
Building Type:
Single family res...
Minor tenant remodel; expansion of existing bar; coffee shop and retail space change of use; no new square footage interior work only
Valuation:
$12,000
Permit #:
2022-PLUMB-0009867
Status:
final
Fee:
$115
Permit Type:
N/A
Building Type:
N/A
New 2 1/2 bathroom house from the ground up. install all drains waste vent water and gas piping
Valuation:
$22,000
Permit #:
2022-PLUMB-0011875
Status:
withdrawn
Fee:
$195
Permit Type:
N/A
Building Type:
Single family res...
Change full bathroom to half bathroom. move kitchen sink and stove. re-pipe existing gas outlets
Valuation:
$6,480
Permit #:
2023-PLUMB-0011251
Status:
issued
Fee:
$75
Permit Type:
N/A
Building Type:
Single family res...
002r plumbing other plumbing repairs
Valuation:
N/A
Permit #:
2307689
Status:
issued
Fee:
N/A
Permit Type:
002r plumbing other
Building Type:
N/A
Replace bathroom fixtures in 2 bathrooms and kitchen. addition new powder room
Valuation:
$6,000
Permit #:
2021-PLUMB-0002926
Status:
issued
Fee:
$67
Permit Type:
N/A
Building Type:
Single family res...
Cm - commercial
Valuation:
$3,179,597
Permit #:
13-09205
Status:
complete
Fee:
$39,201
Permit Type:
New
Building Type:
Commercial
Cm - commercial
Valuation:
$323,032
Permit #:
13-09206
Status:
complete
Fee:
N/A
Permit Type:
New
Building Type:
Commercial
Cm - commercial
Valuation:
$814,990
Permit #:
13-09208
Status:
complete
Fee:
N/A
Permit Type:
New
Building Type:
Commercial
Cm - commercial
Valuation:
$266,724
Permit #:
13-09210
Status:
complete
Fee:
N/A
Permit Type:
New
Building Type:
Commercial
Replace prep sink drain connection from direct connect to air gap to floor sink. replace open site drain with floor drain with cove
Valuation:
$1,200
Permit #:
2019-PLUMB-0001740
Status:
final
Fee:
$35
Permit Type:
N/A
Building Type:
N/A
008 misc. fee application fees $ 95 plumbing. contractor $ 130
Valuation:
N/A
Permit #:
2307558
Status:
issued
Fee:
N/A
Permit Type:
008 misc. Fee
Building Type:
N/A
No Description Available
Valuation:
N/A
Permit #:
23112902 00000PP
Status:
issued
Fee:
N/A
Permit Type:
New construction
Building Type:
Residential
Remodel bathroom and kitchen
Valuation:
$5,000
Permit #:
2020-PLUMB-0007703
Status:
final
Fee:
$59
Permit Type:
N/A
Building Type:
Single family res...
1229 cook st - plumbing permit
Valuation:
$12,000
Permit #:
2020-PLUMB-0000595
Status:
final
Fee:
$115
Permit Type:
N/A
Building Type:
Single family res...
New single family home
Valuation:
$650,000
Permit #:
BLDG21-00696
Status:
final
Fee:
$16,878
Permit Type:
New single family...
Building Type:
N/A
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Verified License
BuildZoom confirmed this contractor's license
Proper Plumbing LLC License info
Verified License
| License # | AEC6199 |
| Status | Active |
| Town | Parker |
| Type | Contractor |
- BuildZoom verified this license was active as of May 2026.
Verify this license's status for Proper Plumbing LLC at the The Town of Parker, Colorado.
This is a sample of licensing data; click here to access a complete history.
Verified License
| License # | 2719 |
| Status | Active |
| State | Colorado |
| Type | Plumbing Contractor |
- BuildZoom verified this license was active as of July 2026.
Verify this license's status for Proper Plumbing LLC 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 # | 180556 |
| Status | Active |
| State | Colorado |
| Type | Plumber |
- BuildZoom verified this license was active as of July 2026.
Verify this license's status for Proper Plumbing LLC at the Colorado Division of Professions and Occupations.
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 March, 2021. Check the current license status of Proper Plumbing LLC 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 # | MP.00180556 |
| Status | Active |
| State | Colorado |
| Type | Master Plumber |
- When BuildZoom last verified this license, it had an expiration date of February, 2017. Check the current license status of Proper Plumbing LLC 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.0002719 |
| Status | Active |
| State | Colorado |
| Type | Plumbing Contractor |
- When BuildZoom last verified this license, it had an expiration date of April, 2017. Check the current license status of Proper Plumbing LLC 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-794 |
| Status | Active |
| State | Colorado |
| Type | Sub Contractor |
- When BuildZoom last verified this license, it had an expiration date of April, 2017. Check the current license status of Proper Plumbing LLC 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 # | CEN-13-07270 |
| Status | Active |
| City | Centennial |
| Type | Plumber's Master Class A |
- When BuildZoom last verified this license, it had an expiration date of April, 2017. Check the current license status of Proper Plumbing LLC 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 # | MP-180556 |
| Status | Active |
| State | Colorado |
| Type | Master Plumber |
- When BuildZoom last verified this license, it had an expiration date of February, 2015. Check the current license status of Proper Plumbing LLC 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 # | 14-0676 |
| Status | Inactive |
| Town | Castle Rock |
| Type | Plumbing |
- According to the Castle Rock Town, 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 Proper Plumbing LLC at the Castle Rock Town, Colorado.
This is a sample of licensing data; click here to access a complete history.
Inactive License
| License # | MP-794 |
| 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 Proper Plumbing LLC at the City of Fort Collins.
This is a sample of licensing data; click here to access a complete history.
Inactive License
| License # | LCC202300534 |
| Status | Inactive |
| City | Thornton |
| Type | Class D Plumbing |
- 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 Proper Plumbing LLC at the Thornton City Development Contractor License.
This is a sample of licensing data; click here to access a complete history.
Inactive License
| License # | 0015611 |
| Status | Inactive |
| Pueblo | |
| Type | Plumbing |
- 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 Proper Plumbing LLC at the Pueblo regional Building Department.
This is a sample of licensing data; click here to access a complete history.
Inactive License
| Status | Inactive |
| City | Denver |
| Type | Plbg 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 # | P120087 |
| 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 Proper Plumbing LLC at the Douglas County Building Division.
This is a sample of licensing data; click here to access a complete history.
Inactive License
| License # | 111231010 |
| Status | Inactive |
| City | Westminster |
| Type | Plumbing 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 Proper Plumbing LLC at the City of Westminster, Colorado.
This is a sample of licensing data; click here to access a complete history.
Inactive License
| License # | P00274 |
| Status | Inactive |
| City | Littleton |
| Type | Class P |
- 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 Proper Plumbing LLC at the The City of Littleton, CO.
This is a sample of licensing data; click here to access a complete history.
Inactive License
| License # | AEC5144 |
| 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 Proper Plumbing LLC at the The City of Arvada, Colorado.
This is a sample of licensing data; click here to access a complete history.
105
BuildZoom Score
Insured
| Insurer | Secura Ins Co |
130
Permits
- Building permit records show that Proper Plumbing LLC has worked on 130 permitted projects.
Proper Plumbing LLC Employees
MW
Matt Williams
Owner
MW
Matthew Brian Williams
MW
Matthew Williams
Owner
PL
Proper Plumbing Llc