Updated: May 13, 2026
Location and Projects
Address
330 Winthrop Dr, Oswego, IL, 60543
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Graz Plumbing Inc
Graz Plumbing Inc, 330 Winthrop Dr, Oswego, IL holds a Sub Contractor, Plumbing license and 7 other licenses according to the Dupage County license board.
Their BuildZoom score of 94 ranks in the top 24% of 65,686 Illinois licensed contractors.
Their license was verified as active when we last checked. If you are thinking of hiring Graz Plumbing Inc, we recommend double-checking their license status with the license board and using our project planner to get competitive quotes.
Graz Plumbing Inc Services
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Graz Plumbing Inc Contact Information
Phone Number: (630) 888-4816
Address: 330 Winthrop Dr, Oswego, IL 60543
This is a sample of this contractor's permits. Click here to access their complete permit history.
Residence alterations/remodling (no new sq ftg)
Valuation:
$30,000
Permit #:
21-00000498|RAL00
Status:
applied
Fee:
N/A
Permit Type:
Room alteration
Building Type:
N/A
Kitchen remodel
Valuation:
$30,000
Permit #:
21-RAD-0212
Status:
final
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Remodel existing master bathroom
Valuation:
$30
Permit #:
20-RAD-0097
Status:
final
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
No Description Available
Valuation:
N/A
Permit #:
2000614
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
Residential
Remodeling bathroom
Valuation:
$18,000
Permit #:
18-RAD-0073
Status:
final
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
New single family dwelling - owner: matthew vander kooy & sandra leingrober
Valuation:
$480,000
Permit #:
BPLM-16-07577
Status:
final
Fee:
$3,804
Permit Type:
N/A
Building Type:
N/A
Installation of a lula elevator --- small addition to connect with lobby
Valuation:
N/A
Permit #:
17MSWK-0195
Status:
issued
Fee:
$2,145
Permit Type:
N/A
Building Type:
N/A
New 2 1/2 story frame residence w/attached garage. property is vacant. structure to be on caissons w/no basement or other below-grade space
Valuation:
$428,000
Permit #:
12-NSF-0029
Status:
final
Fee:
N/A
Permit Type:
New
Building Type:
N/A
Install generator
Valuation:
$3,500
Permit #:
15-RAD-0012
Status:
final
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
One story addtn (master bedroom & bath) and deck
Valuation:
$105,000
Permit #:
15-RAD-0190
Status:
final
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Finish basement
Valuation:
$35,000
Permit #:
17-ACC-0050
Status:
final
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Remodel hall bathroom
Valuation:
$15,000
Permit #:
17-RAD-0155
Status:
final
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
No Description Available
Valuation:
$150,000
Permit #:
15-1164/000 000 RAD 00
Status:
N/A
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
No Description Available
Valuation:
$50,000
Permit #:
16-2620/000 000 RAD 00
Status:
N/A
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
No Description Available
Valuation:
$32,000
Permit #:
16-3158/000 000 RAL 00
Status:
N/A
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
No Description Available
Valuation:
$7,500
Permit #:
16-2666/000 000 RMTH 00
Status:
PERMIT PRINTED
Fee:
$265
Permit Type:
Residential (>1tr...
Building Type:
N/A
New construction on vacant lot
Valuation:
$500,000
Permit #:
14-NSF-0043
Status:
final
Fee:
N/A
Permit Type:
New
Building Type:
N/A
New single family residence
Valuation:
$435,000
Permit #:
14-NSF-0055
Status:
final
Fee:
N/A
Permit Type:
New
Building Type:
N/A
Low density sf district
Valuation:
$2,000
Permit #:
14-3792
Status:
APPROVED
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Family room addition & renovation of existing areas to create a new bedroom & bathroom parlor & den - 922 sf
Valuation:
$250,000
Permit #:
11-RAD-0045
Status:
final
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
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Recent Buildzoom Projects
Verified License
BuildZoom confirmed this contractor's license
Graz Plumbing Inc License info
Verified License
| License # | CR0003320 |
| Status | Active |
| County | Dupage County |
| Type | Sub Contractor, Plumbing |
- BuildZoom verified this license was active as of May 2026.
Verify this license's status for Graz Plumbing Inc at the County of Dupage Contractor Registration Information.
This is a sample of licensing data; click here to access a complete history.
License Not Verified
| License # | 14-00021632 |
| Status | Active |
| City | Aurora |
| Type | Plumbing Contractor |
- When BuildZoom last verified this license, it had an expiration date of December, 2016. Check the current license status of Graz Plumbing Inc with the The City of Aurora, IL
This is a sample of licensing data; click here to access a complete history.
License Not Verified
| License # | CR6684 |
| Status | Active |
| County | Dupage County |
| Type | Plumbing |
- When BuildZoom last verified this license, it had an expiration date of June, 2022. Check the current license status of Graz Plumbing Inc with the County of Dupage Contractor Registration Information
This is a sample of licensing data; click here to access a complete history.
Inactive License
| License # | SBC181736 |
| Status | Inactive |
| City | City Of Chicago |
| Type | Plumbing 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.
Check this license's status for Graz Plumbing Inc at the City of Chicago Data Portal.
This is a sample of licensing data; click here to access a complete history.
Inactive License
| License # | CR6684 |
| Status | Inactive |
| County | Dupage County |
| Type | Sub Contractor, Plumbing |
- 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 Graz Plumbing 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 | Plumbing |
- 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 # | 055-042550 |
| 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 Graz Plumbing Inc at the Village of Oak Park.
This is a sample of licensing data; click here to access a complete history.
Inactive License
| License # | 055-042550 |
| Status | Inactive |
| City | Evanston |
| Type | Plumbing |
- According to the City of Evanston Building and Inspection Services, the status of this license was at one point cancelled. However, this information may have changed.
Check this license's status for Graz Plumbing Inc at the City of Evanston Building and Inspection Services.
This is a sample of licensing data; click here to access a complete history.
94
BuildZoom Score
32
Permits
- Building permit records show that Graz Plumbing Inc has worked on 32 permitted projects.