Updated: Jul 06, 2026
Location and Projects
Address
4510 S. Broadway, Saint Louis, MO, 63111
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Cornerstone Stl Construction
Cornerstone Stl Inc specializes in residential remodeling projects throughout the St. Louis, Missouri area. The company’s portfolio features a range of home renovations, including kitchen remodels, basement finishing, and bathroom updates. Serving homeowners across St. Louis, Cornerstone Stl Inc manages both interior and exterior improvements, with completed projects showcasing updated living spaces and modernized home layouts. With 12 years of experience, the contractor is equipped to handle whole-home transformations as well as targeted upgrades. The firm’s work emphasizes functional design solutions tailored to each property. Examples include finished basements with custom entertainment areas, remodeled kitchens with updated cabinetry, and bathroom renovations utilizing contemporary materials. Cornerstone Stl Inc works directly with residential clients to complete remodeling projects from initial planning through construction.
Cornerstone Stl Inc Services
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Cornerstone Stl Inc Contact Information
Phone Number: (314) 262-6277
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Address: 4510 S. Broadway, St. Louis, MO 63111
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Cornerstone Stl Inc St. Louis
Quality
105
92nd percentile
Pro tip:
We generally recommend hiring a contractor with a score higher than 95.
Cornerstone Stl Inc has a BuildZoom score of 105, which places them above 92% of 23,328 contractors in Missouri.
Activity
|
8 projects
|
2025 |
|
8 projects
|
2024 |
|
7 projects
|
2023 |
Our building permit records indicate that Cornerstone Stl Inc has worked on at least
23.0 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.
Pricing
|
17 projects
|
$5k-$20k |
|
5 projects
|
$20k-$50k |
|
1 project
|
$50k-$100k |
The typical size of their permits is approximately $8,200. 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.
Two new egress windows in existing unfinished basement
Valuation:
$9,000
Permit #:
23BLD-08754
Status:
complete
Fee:
$178
Permit Type:
Alteration
Building Type:
N/A
Building residential existing building (integrated/non-integrated)
2025-09-23
Install new egress window in the existing basement rec. room
Valuation:
$8,200
Permit #:
25BLD-03135
Status:
complete
Fee:
$178
Permit Type:
Alteration
Building Type:
N/A
Contractor to remove and replace approx 12 of foundation wall & install 15 push piers per structural engineer's plan of repair
Valuation:
$74,800
Permit #:
23BLD-07948
Status:
canceled
Fee:
N/A
Permit Type:
Repair
Building Type:
N/A
(vehicular damage) part of the existing foundation damaged by an automobile will be replaced
Valuation:
$47,000
Permit #:
24BLD-09326
Status:
issued
Fee:
$356
Permit Type:
Repair
Building Type:
N/A
Install underpinned piers helical pier with support column and egress window per plan
Valuation:
$32,500
Permit #:
24BLD-04821
Status:
issued
Fee:
$241
Permit Type:
Alteration
Building Type:
N/A
Contractor to repair foundation wall per structural engineer's plan of repair
Valuation:
$10,000
Permit #:
22BLD-07326
Status:
complete
Fee:
$181
Permit Type:
Repair
Building Type:
N/A
Addition window well with egress window to creat a new bedroom in the existing finished basement
Valuation:
$7,000
Permit #:
22BLD-02577
Status:
complete
Fee:
$166
Permit Type:
Alteration
Building Type:
N/A
Contractor to remove and replace approx 12 of foundation wall
Valuation:
$74,800
Permit #:
23BLD-08156
Status:
issued
Fee:
$424
Permit Type:
Repair
Building Type:
N/A
Addition walkout to existing basement and stairwell
Valuation:
$25,000
Permit #:
24BLD-04398
Status:
issued
Fee:
$217
Permit Type:
Alteration
Building Type:
N/A
Building residential existing building (integrated/non-integrated)
2025-09-08
Install egress window in basement and floor joist repair (basement finish and interior remodel under separated permit 25bld-06966)
Valuation:
$7,800
Permit #:
25BLD-06999
Status:
issued
Fee:
$173
Permit Type:
Alteration
Building Type:
N/A
Install new egress window to existing unfinished basement
Valuation:
$8,200
Permit #:
24BLD-04399
Status:
issued
Fee:
$178
Permit Type:
Alteration
Building Type:
N/A
Install new egress window to existing unfinished basement
Valuation:
$8,000
Permit #:
24BLD-01567
Status:
plancheck
Fee:
N/A
Permit Type:
Alteration
Building Type:
N/A
Install new egress window in existing unfinished basement
Valuation:
$8,200
Permit #:
24BLD-00965
Status:
triage
Fee:
N/A
Permit Type:
Alteration
Building Type:
N/A
Building residential existing building (integrated/non-integrated)
2025-08-19
Saw cut opening for basement walkout
Valuation:
$5,200
Permit #:
25BLD-06605
Status:
revisions requested
Fee:
N/A
Permit Type:
Alteration
Building Type:
N/A
Install a window well with egress window in basement
Valuation:
$6,000
Permit #:
21BLD-07030
Status:
complete
Fee:
$164
Permit Type:
Alteration
Building Type:
N/A
Install egress window
Valuation:
$8,000
Permit #:
23BLD-03833
Status:
complete
Fee:
$220
Permit Type:
Alteration
Building Type:
N/A
Install egress window and window well per plan
Valuation:
$7,000
Permit #:
22BLD-06411
Status:
issued
Fee:
$156
Permit Type:
Alteration
Building Type:
N/A
Kitchen and bathroom remodel
Valuation:
$36,000
Permit #:
24BLD-04397
Status:
issued
Fee:
$258
Permit Type:
Interior finish
Building Type:
N/A
Install egress window and window well
Valuation:
$6,500
Permit #:
22BLD-04055
Status:
complete
Fee:
$156
Permit Type:
Alteration
Building Type:
N/A
Install egress window and window well
Valuation:
$7,000
Permit #:
22BLD-03905
Status:
canceled
Fee:
$156
Permit Type:
Alteration
Building Type:
N/A
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Cornerstone Stl Inc Reviews
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Cornerstone Stl Inc License info
License Not Verified
| License # | 25-000035 |
| Status | Active |
| City | Richmond Heights |
| Type | Contractor License |
- When BuildZoom last verified this license, it had an expiration date of June, 2026. Check the current license status of Cornerstone Stl Inc with the City of Richmond Heights
This is a sample of licensing data; click here to access a complete history.
License Not Verified
| License # | GEN3719699 |
| Status | Active |
| City | University City |
| Type | General Contractor |
- When BuildZoom last verified this license, it had an expiration date of December, 2022. Check the current license status of Cornerstone Stl Inc with the City of University City
This is a sample of licensing data; click here to access a complete history.
License Not Verified
| License # | GEN3719699 |
| Status | Active |
| City | University City |
| Type | General Contractor |
- When BuildZoom last verified this license, it had an expiration date of December, 2024. Check the current license status of Cornerstone Stl Inc with the City of University City
This is a sample of licensing data; click here to access a complete history.
License Not Verified
| Status | Active |
| City | Dardenne Prairie |
- When BuildZoom last verified this license, it had an expiration date of December, 2024. Check the current license status of Cornerstone Stl Inc with the City of Dardenne Prairie
This is a sample of licensing data; click here to access a complete history.
License Not Verified
| Status | Active |
| City | Dardenne Prairie |
- When BuildZoom last verified this license, it had an expiration date of December, 2020. Check the current license status of Cornerstone Stl Inc with the City of Dardenne Prairie
This is a sample of licensing data; click here to access a complete history.
License Not Verified
| Status | Active |
| City | Town And Country |
- When BuildZoom last verified this license, it had an expiration date of December, 2024. Check the current license status of Cornerstone Stl Inc with the City of Town and Country
This is a sample of licensing data; click here to access a complete history.
License Not Verified
| Status | Active |
| City | Richmond Heights |
- When BuildZoom last verified this license, it had an expiration date of December, 2022. Check the current license status of Cornerstone Stl Inc with the City of Richmond Heights
This is a sample of licensing data; click here to access a complete history.
License Not Verified
| License # | GEN7838301 |
| Status | Active |
| City | Dyersburg |
| Type | General Contractor |
- When BuildZoom last verified this license, it had an expiration date of September, 2018. Check the current license status of Cornerstone Stl Inc with the City of Dyersburg
This is a sample of licensing data; click here to access a complete history.
Inactive License
| License # | 23-000017 |
| Status | Inactive |
| City | Richmond Heights |
| Type | Contractor License |
- According to the City of Richmond Heights, 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 Cornerstone Stl Inc at the City of Richmond Heights.
This is a sample of licensing data; click here to access a complete history.
Inactive License
| License # | S8327 |
| Status | Inactive |
| County | St Louis County |
| Type | Gen Contractor |
- According to the Saint Louis County Department of Public Works, 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 Cornerstone Stl Inc at the Saint Louis County Department of Public Works.
This is a sample of licensing data; click here to access a complete history.
Inactive License
| License # | GEN7838301 |
| Status | Inactive |
| City | University City |
| Type | General Contractor |
- According to the City of University City, 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 Cornerstone Stl Inc at the City of University City.
This is a sample of licensing data; click here to access a complete history.
Inactive License
| License # | GEN7838301 |
| Status | Inactive |
| City | University City |
| Type | General Contractor |
- According to the City of University City, 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 Cornerstone Stl Inc at the City of University City.
This is a sample of licensing data; click here to access a complete history.
105
BuildZoom Score
65
Permits
- Building permit records show that Cornerstone Stl Inc has worked on 65 permitted projects.
Cornerstone Stl Inc Employees
DB
Dale Blaine
Owner