Updated: Jul 15, 2026
Location and Projects
Address
2715 S WILLIAMS ST, Denver, CO, 80210
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Sennett Windows
Sennett Windows, 2715 S Williams St, Denver, CO (Owned by: Sennett Stephen) holds a Residential Contractor Class C license and 11 other licenses according to the Denver 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 Sennett Windows, we recommend double-checking their license status with the license board and using our bidding system to get competitive quotes.
Sennett Windows Contact Information
Phone Number: (720) 626-4221
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Address: 2715 S WILLIAMS ST, Denver, CO 80210
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Sennett Windows Denver
Quality
110
96th percentile
Pro tip:
We generally recommend hiring a contractor with a score higher than 95.
Sennett Windows has a BuildZoom score of 110, which places them above 96% of 55,949 contractors in Colorado.
Activity
|
38 projects
|
2025 |
|
50 projects
|
2024 |
|
183 projects
|
2023 |
Our building permit records indicate that Sennett Windows has worked on at least
271.0 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
|
258 projects
|
Door and windows installations |
Analyzing permits over the last 4 years shows that Sennett Windows mostly works on
door and windows installation
projects.
Pricing
|
164 projects
|
< $5k |
|
52 projects
|
$5k-$20k |
|
3 projects
|
$20k-$50k |
|
1 project
|
$100k-$250k |
The typical size of their permits is approximately $3,500. 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.
This is a sample of this contractor's permits. Click here to access their complete permit history.
New egress window installing one (1) new egress window (see all approved with condtions that apply to scope of work) all work must adhere to 2021 irc 2022 drc 2022 dbca 2022 dec 2010 dzc and u-su-c zone district standards
Valuation:
$3,500
Permit #:
2025-LOG-0000243
Status:
approved
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Adu-300 sq ft addition on south east corner of the property. addition will be used for personal use will not be rented no new address assignment needed
Valuation:
$200,000
Permit #:
2024-LOG-0012837
Status:
withdrawn
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Install one basement entry door (recreational use only) excavate and pour stairs. install hand/guard rails sconce light and sump pump. all to be installed/built per engineers reports. *all documentation was pre reviewed and approved by john essen on 12/8
Valuation:
$28,000
Permit #:
2022-LOG-0017290
Status:
approved
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Install one basement entry door (recreational use only) excavate and pour stairs. install hand/guard rails sconce light and sump pump. all to be installed/built per engineers reports. *all documentation was pre reviewed and approved by john essen on 12/8
Valuation:
N/A
Permit #:
2023-RESCON-0000145
Status:
final
Fee:
$320
Permit Type:
N/A
Building Type:
N/A
Install one basement entry door (recreational use only) excavate and pour stairs. install hand/guard rails sconce light and sump pump. all to be installed/built per engineers reports. *all documentation was pre reviewed and approved by john essen on 12/8
Valuation:
N/A
Permit #:
2023-RESCON-0000144
Status:
final
Fee:
$92
Permit Type:
N/A
Building Type:
N/A
Permit includes modification to existing basement foundation wall & install of (1) new egress door & stairway per application. structural: yes - per engineer’s drawings. electrical: yes – provide exterior stair illumination compliance per r303.8 and power for new sump
Valuation:
$23,000
Permit #:
BLD-2021-03450
Status:
expired
Fee:
$928
Permit Type:
N/A
Building Type:
N/A
Install two egress windows in basement bedrooms *dew has no information on current or past permits pertaining to basement work
Valuation:
$7,000
Permit #:
BLD-2023-01060
Status:
expired
Fee:
$353
Permit Type:
N/A
Building Type:
N/A
Install one egress window in basement *dew has no information on current or past permits pertaining to basement work
Valuation:
$3,500
Permit #:
BLD-2023-01061
Status:
expired
Fee:
$95
Permit Type:
N/A
Building Type:
N/A
Installing one (1) new egress window u-factor 25 (engineering letter) all work must adhere to 2021irc and 2022drc
Valuation:
N/A
Permit #:
2024-RESCON-0000485
Status:
final
Fee:
$176
Permit Type:
N/A
Building Type:
N/A
Install one egress window and well
Valuation:
$4,000
Permit #:
2025-LOG-0001023
Status:
approved
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Install two egress windows
Valuation:
$8,000
Permit #:
2025-LOG-0003485
Status:
approved
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Install two egress windows
Valuation:
$8,000
Permit #:
2025-LOG-0003370
Status:
approved
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Install two egress windows
Valuation:
$8,000
Permit #:
2025-LOG-0002846
Status:
approved
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Install one egress window
Valuation:
$6,000
Permit #:
2025-LOG-0002572
Status:
plancheck
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Install two egress windows
Valuation:
$8,000
Permit #:
2025-LOG-0001842
Status:
approved
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Install one egress window
Valuation:
$4,000
Permit #:
2025-LOG-0003730
Status:
plancheck
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Install one egress window
Valuation:
$4,000
Permit #:
2025-LOG-0003489
Status:
approved
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Install one egress window
Valuation:
$4,000
Permit #:
2025-LOG-0002888
Status:
plancheck
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Install one egress window
Valuation:
$4,000
Permit #:
2025-LOG-0002895
Status:
approved
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Install one egress window
Valuation:
$4,000
Permit #:
2025-LOG-0002871
Status:
plancheck
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
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Verified License
BuildZoom confirmed this contractor's license
Sennett Windows License info
Verified License
| Status | Active |
| City | Denver |
| Type | Residential Contractor Class C |
- 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
| Status | Active |
| City | Aurora |
| Type | Residential Building Contractor |
- 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 # | 110930034 |
| Status | Active |
| City | Westminster |
| Type | General Contractor |
| Date Issued | 11-13-2025 |
- BuildZoom verified this license was active as of May 2026.
Verify this license's status for Sennett Windows at the City of Westminster, Colorado.
This is a sample of licensing data; click here to access a complete history.
Verified License
| License # | AEC2766 |
| Status | Active |
| Town | Parker |
| Type | Contractor |
- BuildZoom verified this license was active as of July 2026.
Verify this license's status for Sennett Windows at the The Town of Parker, Colorado.
This is a sample of licensing data; click here to access a complete history.
Verified License
| License # | C00080 |
| Status | Active |
| City | Littleton |
| Type | Contractor |
| Date Issued | 10-16-2025 |
- BuildZoom verified this license was active as of May 2026.
Verify this license's status for Sennett Windows at the The City of Littleton, CO.
This is a sample of licensing data; click here to access a complete history.
Verified License
| License # | CON-10-0266 |
| Status | Active |
| County | Boulder County |
| Type | One And Two Family Residential |
- BuildZoom verified this license was active as of November 2025.
Verify this license's status for Sennett Windows at the Boulder County Land Use Department.
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 November, 2020. Check the current license status of Sennett Windows 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.
Verified License
| License # | CO929 |
| Status | Active |
| State | Colorado |
- BuildZoom has not verified this license since June, 2015.
Verify this license's status for Sennett Windows 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
| License # | CEN-13-06669 |
| Status | Active |
| City | Centennial |
| Type | General Contractor Class C |
- When BuildZoom last verified this license, it had an expiration date of October, 2014. Check the current license status of Sennett Windows 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 # | 23149 |
| Status | Active |
| City | Thornton |
| Type | Class C Residential |
- When BuildZoom last verified this license, it had an expiration date of October, 2014. Check the current license status of Sennett Windows with the Thornton City Development Contractor License
This is a sample of licensing data; click here to access a complete history.
Inactive License
| License # | CL2236 |
| Status | Inactive |
| County | Larimer County, Co |
| Type | Class C |
- According to the Larimer County, 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 Sennett Windows at the Larimer County.
This is a sample of licensing data; click here to access a complete history.
Inactive License
| License # | AEC2768 |
| 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 Sennett Windows at the The City of Arvada, Colorado.
This is a sample of licensing data; click here to access a complete history.
110
BuildZoom Score
1.8K
Permits
- Building permit records show that Sennett Windows has worked on 1828 permitted projects.
Sennett Windows Employees
DW
Denver Egress Window
Owner
SI
Sennett Enterprises Inc
Limited B
SS
Sennett Stephen
Owner
SS
Stephen M Sennett
Co Owner
SS
Stephen Sennett