Updated: Jun 09, 2026
Location and Projects
Address
55 DECATUR ST, Denver, CO, 80219
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Grand Bison Contracting Plumber
Grand Bison Contracting LLC, 55 Decatur St, Denver, CO (Employees: Grand Bison Contracting Llc, Robert Malunat, and Robert Malunot) holds a Plumbing license and 11 other licenses according to the Aurora license board.
Their BuildZoom score of 103 ranks in the top 10% of 55,949 Colorado licensed contractors.
Their license was verified as active when we last checked. If you are thinking of hiring Grand Bison Contracting LLC, we recommend double-checking their license status with the license board and using our bidding system to get competitive quotes.
Grand Bison Contracting LLC Services
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Grand Bison Contracting LLC Contact Information
Phone Number: (720) 375-1022
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Address: 55 DECATUR ST, Denver, CO 80219
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Grand Bison Contracting LLC Denver
Quality
103
90th percentile
Pro tip:
We generally recommend hiring a contractor with a score higher than 95.
Grand Bison Contracting LLC has a BuildZoom score of 103, which places them above 90% of 55,949 contractors in Colorado.
Activity
|
3 projects
|
2025 |
|
11 projects
|
2024 |
|
7 projects
|
2023 |
Our building permit records indicate that Grand Bison Contracting LLC has worked on at least
21.0 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
|
7 projects
|
Home Additions |
|
15 projects
|
Plumbing projects |
Analyzing permits over the last 4 years shows that Grand Bison Contracting LLC mostly works on
plumbing project
and home addition
projects.
Pricing
|
7 projects
|
< $5k |
|
5 projects
|
$5k-$20k |
|
4 projects
|
$20k-$50k |
The typical size of their permits is approximately $6,500. 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 Grand Bison Contracting LLC
This is a sample of this contractor's permits. Click here to access their complete permit history.
Kitchen remodel no layout change or structure change new cabinets appliances and 1 can lightrev desc kitchen remodel new cabinets countertops new appliances electrical move sink gas cooking new downdraft vent addition makeup air removing part of wall and pantry new cabinets countertops electrical outlet in laundry room
Valuation:
$35,200
Permit #:
23-001266
Status:
issued
Fee:
$1,923
Permit Type:
N/A
Building Type:
N/A
Replacement of power direct vent tank heater with tankless. will need to upgrade meter after install to support max btus of 425k
Valuation:
$5,000
Permit #:
2024-PLUMB-0010734
Status:
final
Fee:
$59
Permit Type:
N/A
Building Type:
Single family res...
New fixtures existing powder room upstairs full bathroom and kitchen. bathroom addition in master rough and new fixtures
Valuation:
$11,820
Permit #:
2024-PLUMB-0005924
Status:
final
Fee:
$115
Permit Type:
N/A
Building Type:
Single family res...
Replace like for like electric water heater
Valuation:
$3,600
Permit #:
PLBG25-00203
Status:
final
Fee:
$159
Permit Type:
Commercial
Building Type:
N/A
Plumbing for 3 piece bathroom remodel
Valuation:
$4,500
Permit #:
2025-PLUMB-0005908
Status:
final
Fee:
$59
Permit Type:
N/A
Building Type:
Single family res...
Move shower drain in basement rough new shower valve. addition lav sink in previous shower location. set new toilet 2 lavs one shower
Valuation:
$3,500
Permit #:
2023-PLUMB-0010263
Status:
final
Fee:
$51
Permit Type:
N/A
Building Type:
Single family res...
Adu rough and finish plumbing. kitchen one bathroom and tankless watet heater. gas range in kitchen
Valuation:
$9,000
Permit #:
2022-PLUMB-0008687
Status:
final
Fee:
$91
Permit Type:
N/A
Building Type:
Single family res...
Water heater
Valuation:
$2,000
Permit #:
25-00626
Status:
issued
Fee:
$69
Permit Type:
Water heater
Building Type:
N/A
Buildingonline | shower repairs
Valuation:
$3,600
Permit #:
1815398
Status:
issued
Fee:
$174
Permit Type:
plumbing permit
Building Type:
N/A
Master bathroom remodel addition floor heat new subpanel in basement
Valuation:
$8,605
Permit #:
RES-24-00397
Status:
complete
Fee:
$519
Permit Type:
N/A
Building Type:
N/A
Garage to master suite addition rough dwv and water. set fixtures
Valuation:
$7,400
Permit #:
2024-PLUMB-0007329
Status:
final
Fee:
$83
Permit Type:
N/A
Building Type:
Single family res...
Replace kitchen faucet/disposal install tankless wh install icemaker box
Valuation:
$4,450
Permit #:
2021-PLUMB-0008815
Status:
final
Fee:
$59
Permit Type:
N/A
Building Type:
Single family res...
Interior remodel master suite addition in rear
Valuation:
$42,000
Permit #:
2022-PLUMB-0009964
Status:
final
Fee:
$356
Permit Type:
N/A
Building Type:
Single family res...
Utility sinks in garage studio
Valuation:
$1,500
Permit #:
2023-PLUMB-0001093
Status:
final
Fee:
$35
Permit Type:
N/A
Building Type:
Single family res...
Remodel kitchen 2 baths addition one bathroom
Valuation:
$6,500
Permit #:
2021-PLUMB-0010360
Status:
final
Fee:
$75
Permit Type:
N/A
Building Type:
Single family res...
Shower valve and drain for ada shower remodel
Valuation:
N/A
Permit #:
RALT24-00083
Status:
final
Fee:
$156
Permit Type:
Interior remodel
Building Type:
N/A
40 gallon 40k atmospheric gas like for like
Valuation:
N/A
Permit #:
BLDG24-1730
Status:
issued
Fee:
$79
Permit Type:
Water heater
Building Type:
N/A
Restoration and remodel after fire damage
Valuation:
$41,123
Permit #:
21NGN-00047
Status:
issued
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Basement bathroom addition tankless water heater
Valuation:
$6,815
Permit #:
2020-PLUMB-0006848
Status:
final
Fee:
$75
Permit Type:
N/A
Building Type:
Single family res...
Rs - residential
Valuation:
$15,200
Permit #:
22-05021
Status:
issued
Fee:
$514
Permit Type:
Alteration
Building Type:
Residential
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Verified License
BuildZoom confirmed this contractor's license
Grand Bison Contracting LLC License info
Verified License
| Status | Active |
| City | Aurora |
| Type | Plumbing |
- 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
| Status | Active |
| City | Denver |
| Type | Plbg A |
- 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 # | AEC6092 |
| Status | Active |
| Town | Parker |
| Type | Contractor |
- BuildZoom verified this license was active as of May 2026.
Verify this license's status for Grand Bison Contracting 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 # | 4017 |
| Status | Active |
| State | Colorado |
| Type | Plumbing Contractor |
- BuildZoom verified this license was active as of June 2026.
Verify this license's status for Grand Bison Contracting 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 Grand Bison Contracting 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.
Inactive License
| License # | 23-000370 |
| Status | Inactive |
| City | Lafayette |
| Type | Plumbing 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 Grand Bison Contracting LLC at the City of Lafayette.
This is a sample of licensing data; click here to access a complete history.
Inactive License
| License # | P00003 |
| 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 Grand Bison Contracting 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 # | 2403477 |
| 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 Grand Bison Contracting LLC at the City of Westminster, Colorado.
This is a sample of licensing data; click here to access a complete history.
Inactive License
| License # | LCC202000673 |
| 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 Grand Bison Contracting 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 # | P200477 |
| 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 Grand Bison Contracting LLC at the Douglas County Building Division.
This is a sample of licensing data; click here to access a complete history.
Inactive License
| License # | 2001284 |
| 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 Grand Bison Contracting LLC at the City of Westminster, Colorado.
This is a sample of licensing data; click here to access a complete history.
Inactive License
| License # | AEC8183 |
| 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 Grand Bison Contracting LLC at the The City of Arvada, Colorado.
This is a sample of licensing data; click here to access a complete history.
103
BuildZoom Score
47
Permits
- Building permit records show that Grand Bison Contracting LLC has worked on 47 permitted projects.
Grand Bison Contracting LLC Employees
GL
Grand Bison Contracting Llc
RM
Robert Malunat
RM
Robert Malunot
Contact