Updated: Jun 02, 2026
Location and Projects
Address
9375 Franklin Ave, Franklin Park, IL, 60131
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Gcw Henry Jankowski Construction
Gcw Henry Jankowski, Inc, 9375 Franklin Ave, Franklin Park, IL holds a Mason Contractor (Class C) license and 14 other licenses according to the City of Chicago license board.
Their BuildZoom score of 103 ranks in the top 10% of 65,686 Illinois licensed contractors.
Their license was verified as active when we last checked. If you are thinking of hiring Gcw Henry Jankowski, Inc, we recommend double-checking their license status with the license board and using our project planner to get competitive quotes.
Gcw Henry Jankowski, Inc Services
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Gcw Henry Jankowski, Inc Contact Information
Phone Number: (847) 455-7489
Address: 9375 Franklin Ave, Franklin Park, IL 60131
Gcw Henry Jankowski, Inc Franklin Park
Quality
103
90th percentile
Pro tip:
We generally recommend hiring a contractor with a score higher than 95.
Gcw Henry Jankowski, Inc has a BuildZoom score of 103, which places them above 90% of 65,686 contractors in Illinois.
Activity
|
5 projects
|
2025 |
|
6 projects
|
2024 |
|
1 project
|
2023 |
Our building permit records indicate that Gcw Henry Jankowski, Inc has worked on at least
12.0 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
|
5 projects
|
Home Additions |
Analyzing permits over the last 4 years shows that Gcw Henry Jankowski, Inc mostly works on
home addition
projects.
Pricing
|
1 project
|
$5k-$20k |
|
4 projects
|
$20k-$50k |
|
2 projects
|
$100k-$250k |
|
2 projects
|
$250k-$500k |
The typical size of their permits is approximately $175,000. 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.
Building Permits by Gcw Henry Jankowski, Inc
This is a sample of this contractor's permits. Click here to access their complete permit history.
Spr 2019 cbc: new 2 car detached frame garage at an existing 2-story single family residence as per plans (occupancy group r5; type vb construction)**certified corrections subject to field inspections & audit **
Valuation:
$48,000
Permit #:
101064810
Status:
issued
Fee:
$675
Permit Type:
N/A
Building Type:
N/A
Spr 2019 cbc. revision to building permit #101007850 issued on 10-17-23. change basement stairs location. change floor layout at basement and first floor with associated electrical and hvac ducts adjustment. no change to number of approved plumbing fixtures. replace approved cement hardie board siding with stucco exterior finishes. no change to approved building footprints. all work a... see more
Valuation:
$50,000
Permit #:
101061857
Status:
issued
Fee:
$963
Permit Type:
N/A
Building Type:
N/A
The current and the proposed use/occupancy classification is rs-2. the construction/proposed job consists of an addition to an existing residence. basement foundation plan first and second floor addition to the back of the residence. first floor new master bedroom and master bathroom and new kitchen. second floor 2 new bedrooms (conditional permit subject to field inspections)
Valuation:
$250,000
Permit #:
100988956
Status:
suspended
Fee:
$1,275
Permit Type:
N/A
Building Type:
N/A
Spr 2019 cbc. second floor addition and two story south side addition over crawl space. interior alteration including plumbing electrical and hvac to existing one story frame single family residence with basement (va construction r-5 occupancy). repair front and rear frame enclosed porches. all work as per plans
Valuation:
$150,000
Permit #:
101007850
Status:
issued
Fee:
$1,525
Permit Type:
N/A
Building Type:
N/A
1st fl expansion 2nd fl addition addition bed, bathroom, office, panrty remodel mudroom 1.5 baths
Valuation:
$350,000
Permit #:
132056
Status:
complete
Fee:
$80
Permit Type:
N/A
Building Type:
N/A
Rear addition and renovation
Valuation:
$300,000
Permit #:
129512
Status:
issued
Fee:
$350
Permit Type:
N/A
Building Type:
N/A
Locations: 1 residential unit(s) 0 non-residential unit(s) exterior work in kind replacement of front porch and columns no work to roof. repair only
Valuation:
$32,855
Permit #:
B200005651
Status:
issued
Fee:
$200
Permit Type:
Other work
Building Type:
N/A
Proposed rear porch internal/exterior renovations to convert existing 2 story/2 unit residence w/basement to single family residence per plans
Valuation:
$49,000
Permit #:
101040873
Status:
complete
Fee:
$3,278
Permit Type:
N/A
Building Type:
N/A
Interior alterations 1 story frame addition and new frame garage all per plans. existing single family residence and proposed single family residence
Valuation:
$150,000
Permit #:
100877871
Status:
suspended
Fee:
$2,050
Permit Type:
N/A
Building Type:
N/A
Sc 2019 cbrc - condo unit 2f interior remodeling and combine units 2r & 3 in existing5 unit residence (deconvert to 4 units) with new garage and raised deck
Valuation:
$241,800
Permit #:
100885034
Status:
complete
Fee:
$3,104
Permit Type:
N/A
Building Type:
N/A
Revision to permit # 100827845 to change gc to bloomfield development company hvac contractor to thermo-pol inc. heating & cooling. plumbing contractor to lrm plumbing corp & concrete contractor to gcw henry jankowski inc
Valuation:
$1
Permit #:
100859543
Status:
issued
Fee:
$75
Permit Type:
N/A
Building Type:
N/A
Proposed 2 story rear addition interior remodeling and alterations new rear wood deck to an existing 2 story brick single family residence with basement as per plans
Valuation:
$200,000
Permit #:
100827485
Status:
complete
Fee:
$1,084
Permit Type:
N/A
Building Type:
N/A
Self-certification for an existing single family row house.the proposed work includes completely remodeling the basement level excavate and underpin the existing exterior walls relocate the rear exterior door in the basement replace the existing stair to the basement and second floor interior partition alterations and replacement of front door/surround per plans
Valuation:
$125,000
Permit #:
100748533
Status:
complete
Fee:
$550
Permit Type:
N/A
Building Type:
N/A
Erect attached four car masonry private garage and partial demolition of principal buildings attached structures per plan **certified plans corrections: conditional permit subject to field inspections **
Valuation:
$28,200
Permit #:
100820144
Status:
complete
Fee:
$2,150
Permit Type:
N/A
Building Type:
N/A
Self-cert: proposed rear 1 story addition and new 2 car detached garage with roof deck existing single family residence proposed single family residence per plans
Valuation:
$100,000
Permit #:
100838037
Status:
complete
Fee:
$2,750
Permit Type:
N/A
Building Type:
N/A
Self-cert: remove existing 3 masonry walls and roof of 2 story brick coach house and erect attached 3 car garage (3b construction) with roof top deck trellis and a bridge/breezeway connection to existing single family residence as per plans
Valuation:
$30,000
Permit #:
100725123
Status:
complete
Fee:
$850
Permit Type:
N/A
Building Type:
N/A
Erect 3 story single family residence with basement and attached 1 car garage with roof deck per plans
Valuation:
$745,000
Permit #:
100768945
Status:
complete
Fee:
$5,600
Permit Type:
N/A
Building Type:
N/A
Single family residence new construction
Valuation:
$500,000
Permit #:
93941
Status:
issued
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Single family residence new construction
Valuation:
$500,000
Permit #:
93940
Status:
issued
Fee:
$300
Permit Type:
N/A
Building Type:
N/A
Revision to permit #101050122. to change of mason contractor
Valuation:
N/A
Permit #:
B200021427
Status:
complete
Fee:
$100
Permit Type:
Administrative ch...
Building Type:
N/A
Gcw Henry Jankowski, Inc Reviews
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Recent Buildzoom Projects
Verified License
BuildZoom confirmed this contractor's license
Gcw Henry Jankowski, Inc License info
Verified License
| License # | MC6328 |
| Status | Active |
| City | City Of Chicago |
| Type | Mason Contractor (Class C) |
- BuildZoom verified this license was active as of June 2026.
Verify this license's status for Gcw Henry Jankowski, Inc at the City of Chicago Data Portal.
This is a sample of licensing data; click here to access a complete history.
Verified License
| License # | 4255 |
| Status | Active |
| Hoffman Estates | |
| Type | Concrete Contractor |
- BuildZoom verified this license was active as of December 2025.
Verify this license's status for Gcw Henry Jankowski, Inc at the Village of Hoffman Estates.
This is a sample of licensing data; click here to access a complete history.
Inactive License
| License # | 20352 |
| Status | Inactive |
| Hoffman Estates | |
| Type | Concrete Contractor |
- According to the Village of Hoffman Estates, the status of this license was at one point cancelled. However, this information may have changed.
Check this license's status for Gcw Henry Jankowski, Inc at the Village of Hoffman Estates.
This is a sample of licensing data; click here to access a complete history.
Inactive License
| License # | 26242 |
| Status | Inactive |
| Hoffman Estates | |
| Type | Concrete Contractor |
- According to the Village of Hoffman Estates, the status of this license was at one point cancelled. However, this information may have changed.
Check this license's status for Gcw Henry Jankowski, Inc at the Village of Hoffman Estates.
This is a sample of licensing data; click here to access a complete history.
Inactive License
| License # | 4719 |
| Status | Inactive |
| Hoffman Estates | |
| Type | Concrete Contractor |
- According to the Village of Hoffman Estates, the status of this license was at one point cancelled. However, this information may have changed.
Check this license's status for Gcw Henry Jankowski, Inc at the Village of Hoffman Estates.
This is a sample of licensing data; click here to access a complete history.
Inactive License
| License # | CR02181 |
| Status | Inactive |
| County | Dupage County |
| Type | Excavating |
- According to the County of Dupage Contractor Registration Information, the status of this license was at one point cancelled. However, this information may have changed.
Check this license's status for Gcw Henry Jankowski, Inc at the County of Dupage Contractor Registration Information.
This is a sample of licensing data; click here to access a complete history.
Inactive License
| License # | CR02181 |
| Status | Inactive |
| County | Dupage County |
| Type | Concrete |
- According to the County of Dupage Contractor Registration Information, the status of this license was at one point cancelled. However, this information may have changed.
Check this license's status for Gcw Henry Jankowski, Inc at the County of Dupage Contractor Registration Information.
This is a sample of licensing data; click here to access a complete history.
Inactive License
| Status | Inactive |
| County | Cook County |
| Type | Damp Proofing |
- According to the Cook County Department of Building and Zoning, the status of this license was at one point cancelled. However, this information may have changed.
This is a sample of licensing data; click here to access a complete history.
Inactive License
| License # | CR02181 |
| Status | Inactive |
| County | Dupage County |
| Type | Sub Contractor, Concrete, Excavating |
- According to the County of Dupage Contractor Registration Information, the status of this license was at one point cancelled. However, this information may have changed.
Check this license's status for Gcw Henry Jankowski, Inc at the County of Dupage Contractor Registration Information.
This is a sample of licensing data; click here to access a complete history.
Inactive License
| License # | L-2020-147 |
| Status | Inactive |
| County | Kankakee County |
| Type | Contractor Registration |
- According to the Kankakee County Planning Department, the status of this license was at one point cancelled. However, this information may have changed.
Check this license's status for Gcw Henry Jankowski, Inc at the Kankakee County Planning Department.
This is a sample of licensing data; click here to access a complete history.
Inactive License
| Status | Inactive |
| County | Cook County |
| Type | Demolition |
- According to the Cook County Department of Building and Zoning, the status of this license was at one point cancelled. However, this information may have changed.
This is a sample of licensing data; click here to access a complete history.
Inactive License
| License # | 201801447 |
| Status | Inactive |
| City | Oak Park |
| Type | Contractor |
- According to the Village of Oak Park, the status of this license was at one point cancelled. However, this information may have changed.
Check this license's status for Gcw Henry Jankowski, Inc at the Village of Oak Park.
This is a sample of licensing data; click here to access a complete history.
Inactive License
| Status | Inactive |
| County | Cook County |
| Type | Concrete |
- According to the Cook County Department of Building and Zoning, the status of this license was at one point cancelled. However, this information may have changed.
This is a sample of licensing data; click here to access a complete history.
Inactive License
| Status | Inactive |
| County | Cook County |
| Type | Excavating/Mass Grading |
- According to the Cook County Department of Building and Zoning, the status of this license was at one point cancelled. However, this information may have changed.
This is a sample of licensing data; click here to access a complete history.
Inactive License
| Status | Inactive |
| City | City Of Chicago |
| Type | Mason Contractor |
- According to the City of Chicago Data Portal, the status of this license was at one point cancelled. However, this information may have changed.
This is a sample of licensing data; click here to access a complete history.
103
BuildZoom Score
133
Permits
- Building permit records show that Gcw Henry Jankowski, Inc has worked on 133 permitted projects.