Updated: Jun 02, 2026
Location and Projects
Address
10 S WACKER DRIVE, Chicago, IL, 60606
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Rex Electric Inc
Rex Electric Inc, 10 S Wacker Dr, Chicago, IL (Owned by: Emil A. Radtke) holds a Electrical Contractor (General) license and 24 other licenses according to the City of Chicago license board.
Their BuildZoom score of 107 ranks in the top 6% of 65,686 Illinois licensed contractors.
Their license was verified as active when we last checked. If you are thinking of hiring Rex Electric Inc, we recommend double-checking their license status with the license board and using our project planner to get competitive quotes.
Rex Electric Inc Contact Information
Phone Number: (312) 251-3630
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Address: 10 S WACKER DRIVE, Chicago, IL 60606
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Rex Electric Inc Chicago
Quality
107
94th percentile
Pro tip:
We generally recommend hiring a contractor with a score higher than 95.
Rex Electric Inc has a BuildZoom score of 107, which places them above 94% of 65,686 contractors in Illinois.
Activity
|
1 project
|
2025 |
|
41 projects
|
2024 |
|
87 projects
|
2023 |
Our building permit records indicate that Rex Electric Inc has worked on at least
129.0 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
|
41 projects
|
Commercial Renovations |
|
12 projects
|
Home Additions |
|
92 projects
|
Electrical projects |
Analyzing permits over the last 4 years shows that Rex Electric Inc mostly works on
electrical project
and commercial renovation
projects.
Pricing
|
31 projects
|
< $5k |
|
31 projects
|
$5k-$20k |
|
15 projects
|
$20k-$50k |
|
10 projects
|
$50k-$100k |
|
21 projects
|
$100k-$250k |
|
15 projects
|
$250k-$500k |
|
11 projects
|
$500k-$1mil |
|
22 projects
|
$1mil+ |
The typical size of their permits is approximately $10,000. 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.
This is a sample of this contractor's permits. Click here to access their complete permit history.
** self-cert 2019 cbrc ** interior renovation of existing tenant office suite on floor 24. renovation includes demolition of existing space in preparation for new interior partitions ceilings lighting and finishes as well as the reworking of hvac electrical plumbing sprinklers and fire alarm. current use: office. proposed use: office
Valuation:
$555,150
Permit #:
101049540
Status:
suspended
Fee:
$6,922
Permit Type:
N/A
Building Type:
N/A
Self-cert 2019 cbrc: interior tenant improvement in existing store. work to include new non structural partitions ceiling floor finish lighting fixtures and outlets plumbing fixtures on selected areas of ground floor and second floor of the building. (m-mercantile 2a construction)
Valuation:
$500,000
Permit #:
101043729
Status:
issued
Fee:
$3,642
Permit Type:
N/A
Building Type:
N/A
** self-cert permit ** interior demolition of existing tenant office suite on floor 14. demolition includes demolition of existing stair between two floors and the infill of the concrete slab. demolition includes demolition of existing space in preparation for new interior partitions ceilings lighting and finishes as well as the reworking of hvac electrical plumbing sprinklers and fir... see more
Valuation:
$634,080
Permit #:
101041564
Status:
phased permitting
Fee:
$3,985
Permit Type:
N/A
Building Type:
N/A
Self-cert 2019 cbrc: demolition project for existing office space on the 9th floor located at 222 w merchandise mart plz a commercial use 25 story building. scope of work includes electrical demolish mechanical demolish and architectural demolish. current use: b (business); proposed use: b (business)
Valuation:
$254,000
Permit #:
101043867
Status:
phased permitting
Fee:
$3,296
Permit Type:
N/A
Building Type:
N/A
Self cert: walgreens post office corporate interior alteration: floor 5 east. existing office space to be converted to executive office use. the retrofit will include a new demising wall resizing of existing office and storage build-out of new closet new break room equipment and casework modification. no exterior work is proposed
Valuation:
$600,000
Permit #:
101017476
Status:
complete
Fee:
$3,041
Permit Type:
N/A
Building Type:
N/A
Self certification: interior tenant improvement of office floors 4 5 and 7-11 as per plans. work to include new partitions finishes furniture lighting electrical plumbing and mechanical work within existing shell space for floors 4-5 & 7-10. alteration for exisitng office space including demolish work new partitions finishes furniture lighting electrical and mechanical work within exi... see more
Valuation:
$39,000,000
Permit #:
101012386
Status:
complete
Fee:
$92,344
Permit Type:
N/A
Building Type:
N/A
Spr 2019 cbrc: interior tenant building out of new idf rooms on floors 4 5 7-10 as per plans. work to include new partitions doors finishes lighting fixtures electrical mechanical work server racks and cable ladder trays. no structural or plumbing work. no change in occupancy. (construction type: 1a; occupancy: b-business office)
Valuation:
$950,000
Permit #:
101005873
Status:
complete
Fee:
$875
Permit Type:
N/A
Building Type:
N/A
Self-cert 2019 cbrc: structural peer review included. interior alterations to existing 2 story masonry building. scope also to include the installation of a new natural gas generator on roof. (existing use: business. proposed use: mercantile cannabis dispensary. construction type 1b)
Valuation:
$1,160,000
Permit #:
101007718
Status:
expired
Fee:
$1,432
Permit Type:
N/A
Building Type:
N/A
Dds - phase 2 of 2: partial demolition of the existing facade and addition at ground floor lobby of an existing 21-story office building. work to include site work new interior partitions and alterations to lobby lounge fitness conference and game room on floor levels 01-03. type ia occupancy class b building. consultant reviewer: globetrotters engineering
Valuation:
$4,000,000
Permit #:
101006836
Status:
complete
Fee:
$48,123
Permit Type:
N/A
Building Type:
N/A
Self-cert 2019 cbrc: interior renovation for existing showroom on the 1st floor located at 222 w merchandise mart a 25 story building. scope of work includes general construction mechanical electrical plumbing and fire protection. no structural work to be performed. current use: m (mercantile); proposed use: m (mercantile)
Valuation:
$1,000,000
Permit #:
101002565
Status:
complete
Fee:
$1,014
Permit Type:
N/A
Building Type:
N/A
Self cert 2019 cbrc: interior and exterior alterations to existing 1st and 2nd floor retail space suite 103 & 203. work to include exterior demolish of storefront entries and curtain wall for new structural framing at storefront; interior demolish to include partition removal and new floor opening for new stair and elevator shaft; build-out to include new mechanical electrical and plu... see more
Valuation:
$3,500,000
Permit #:
101001298
Status:
suspended
Fee:
$2,691
Permit Type:
N/A
Building Type:
N/A
Self-cert 2019 cbrc: revision to permit #100993485 to reconfigure the office layout in existing office building on the 2nd floor office suite 211. new partitions plumbing ventilation and electrical work as per plans. (occupancy group b; type 1a construction)
Valuation:
$511,000
Permit #:
100999923
Status:
complete
Fee:
$1,280
Permit Type:
N/A
Building Type:
N/A
Scope: nonstructural interior alteration to electrical plumbing and mechanical within unit theater sitting area and bathrooms.locations: 1 residential unit(s) 0 non-residential unit(s) residential unit 8n
Valuation:
$500,000
Permit #:
B200006565
Status:
complete
Fee:
$875
Permit Type:
Nonstructural int...
Building Type:
N/A
** self-cert 2019 cbrc ** interior renovation of existing tenant office suite on floor 27. renovation includes demolition of existing space in preparation for new interior partitions ceilings lighting and finishes as well as the reworking of hvac electrical plumbing sprinklers and fire alarm. current use: office. proposed use: office
Valuation:
$201,720
Permit #:
101049545
Status:
suspended
Fee:
$2,563
Permit Type:
N/A
Building Type:
N/A
Self-cert 2019 cbrc: interior alterations of room 8010 on the 8th floor. work to included removal and construction of non-load bearing partitions new suspended ceiling mechanical and electrical. no structural and no plumbing. (occupancy group b type ia construction)
Valuation:
$200,000
Permit #:
101043081
Status:
complete
Fee:
$925
Permit Type:
N/A
Building Type:
N/A
Self-cert 2019 cbrc: interior building out in existing office building on the 2nd floor suite 212 as per plans. new partitions plumbing ventilation and electrical work as per plans. (occupancy group b; type 1a construction)
Valuation:
$444,620
Permit #:
101003190
Status:
complete
Fee:
$1,245
Permit Type:
N/A
Building Type:
N/A
Self-cert 2019 cbrc alterations to floors 4 5 and 6 to create new interior offices per plans. total area of new work (900 sf). work is within existing 6-story university building occupancy group b type 1b construction. no plumbing scope
Valuation:
$299,995
Permit #:
101049744
Status:
suspended
Fee:
$1,775
Permit Type:
N/A
Building Type:
N/A
Self-cert 2019 cbrc: interior renovation on first floor of 4 229 sf business office suite within existing 7-story library building. no structural work. (building occupancy group a-3 type 1-a construction). pd43
Valuation:
$1,100,000
Permit #:
101016080
Status:
expired
Fee:
$2,486
Permit Type:
N/A
Building Type:
N/A
Interior renovation of existing retail tenant space. work to include new finished ceiling new partitions new finishes & fixtures. new mep work. no change in occupancy. as per plans
Valuation:
$750,000
Permit #:
101040045
Status:
complete
Fee:
$11,429
Permit Type:
N/A
Building Type:
N/A
Spr - 2019 cbrc: university of chicago project: biopsych 4th floor renovation. work area: 4399sqft. construction type: i-c. unsprinklered occupancy: type b busines.s no change in use no change in area. certified plan corrections
Valuation:
$470,000
Permit #:
101045249
Status:
suspended
Fee:
$1,445
Permit Type:
N/A
Building Type:
N/A
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BZ Score
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BZ Score
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Rex Electric Inc Reviews
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Verified License
BuildZoom confirmed this contractor's license
Rex Electric Inc License info
Verified License
| License # | ECC01133 |
| Status | Active |
| City | City Of Chicago |
| Type | Electrical Contractor (General) |
- BuildZoom verified this license was active as of June 2026.
Verify this license's status for Rex Electric 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 # | 19LICL-0098 |
| Status | Active |
| City | Evanston |
| Type | Electrical |
- BuildZoom verified this license was active as of February 2026.
Verify this license's status for Rex Electric Inc at the City of Evanston Building and Inspection Services.
This is a sample of licensing data; click here to access a complete history.
Verified License
| License # | 18-1756 |
| Status | Active |
| State | Illinois |
- BuildZoom verified this license was active as of June 2026.
Verify this license's status for Rex Electric Inc at the Illinois Commerce Commission.
This is a sample of licensing data; click here to access a complete history.
Verified License
| License # | 18-0492 |
| Status | Active |
| State | Illinois |
- BuildZoom verified this license was active as of June 2026.
Verify this license's status for Rex Electric Inc at the Illinois Commerce Commission.
This is a sample of licensing data; click here to access a complete history.
Verified License
| License # | 14-0258 |
| Status | Active |
| State | Illinois |
- BuildZoom verified this license was active as of June 2026.
Verify this license's status for Rex Electric Inc at the Illinois Commerce Commission.
This is a sample of licensing data; click here to access a complete history.
License Not Verified
| Status | Active |
| Town | Palatine |
| Type | Electrical |
- When BuildZoom last verified this license, it had an expiration date of December, 2021. Check the current license status of Rex Electric Inc with the Village of Palatine Registered Contractors
This is a sample of licensing data; click here to access a complete history.
License Not Verified
| License # | CL-18-21606 R |
| Status | Active |
| Town | Orland Park |
| Type | Electrical Contractor |
- When BuildZoom last verified this license, it had an expiration date of December, 2018. Check the current license status of Rex Electric Inc with the Village of Orland Park Contractor License
This is a sample of licensing data; click here to access a complete history.
License Not Verified
| License # | CL-16-21606 |
| Status | Active |
| Town | Orland Park |
| Type | Electrical Contractor |
- When BuildZoom last verified this license, it had an expiration date of August, 2017. Check the current license status of Rex Electric Inc with the Village of Orland Park Contractor License
This is a sample of licensing data; click here to access a complete history.
License Not Verified
| License # | 14-00001318 |
| Status | Active |
| City | Aurora |
| Type | Elec(Com) Contractor |
- When BuildZoom last verified this license, it had an expiration date of October, 2015. Check the current license status of Rex Electric 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 # | CL-15-21606 |
| Status | Active |
| Town | Orland Park |
| Type | Electrical Contractor |
- When BuildZoom last verified this license, it had an expiration date of August, 2017. Check the current license status of Rex Electric Inc with the Village of Orland Park Contractor License
This is a sample of licensing data; click here to access a complete history.
Inactive License
| License # | CR-9521 |
| Status | Inactive |
| Type | Contractor Registration |
- According to the local license board, 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.
This is a sample of licensing data; click here to access a complete history.
Inactive License
| Status | Inactive |
| City | City Of Chicago |
| Type | General |
- According to the City of Chicago Data Portal, 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.
This is a sample of licensing data; click here to access a complete history.
Inactive License
| License # | CR0000440 |
| Status | Inactive |
| County | Dupage County |
| Type | Sub Contractor, Electric Fire Alarm |
- 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. If this is your business, please update your license status.
Check this license's status for Rex Electric 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 |
| City | City Of Chicago |
| Type | General |
- According to the City of Chicago Data Portal, 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.
This is a sample of licensing data; click here to access a complete history.
Inactive License
| Status | Inactive |
| Town | Bartlett |
| Type | Drywall |
- According to the Contractors Licensed in Bartlett, 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.
This is a sample of licensing data; click here to access a complete history.
Inactive License
| Status | Inactive |
| County | Cook County |
| Type | Electrical |
- 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. If this is your business, please update your license status.
This is a sample of licensing data; click here to access a complete history.
Inactive License
| License # | CL-18-21606 |
| Status | Inactive |
| Town | Orland Park |
| Type | Electrical Contractor |
- According to the Village of Orland Park 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 Rex Electric Inc at the Village of Orland Park Contractor License.
This is a sample of licensing data; click here to access a complete history.
Inactive License
| License # | 202001663 |
| 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. If this is your business, please update your license status.
Check this license's status for Rex Electric 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 |
| City | City Of Chicago |
| Type | B $10,000,000 Project Ceiling |
- According to the City of Chicago Data Portal, 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.
This is a sample of licensing data; click here to access a complete history.
Inactive License
| Status | Inactive |
| City | City Of Chicago |
| Type | General |
- According to the City of Chicago Data Portal, 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.
This is a sample of licensing data; click here to access a complete history.
Inactive License
| License # | AR0010089 |
| Status | Inactive |
| State | Florida |
| Type | Architect |
- According to the Florida Department of Business & Professional Regulation, 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 Rex Electric Inc at the Florida Department of Business & Professional Regulation.
This is a sample of licensing data; click here to access a complete history.
Inactive License
| License # | C01133 |
| Status | Inactive |
| City | Evanston |
| Type | Electrical |
- 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. If this is your business, please update your license status.
Check this license's status for Rex Electric Inc at the City of Evanston Building and Inspection Services.
This is a sample of licensing data; click here to access a complete history.
Inactive License
| License # | CR7685 |
| Status | Inactive |
| County | Dupage County |
| Type | Electric |
- 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. If this is your business, please update your license status.
Check this license's status for Rex Electric 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 # | CL-17-21606 |
| Status | Inactive |
| Town | Orland Park |
| Type | Electrical Contractor |
- According to the Village of Orland Park 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 Rex Electric Inc at the Village of Orland Park Contractor License.
This is a sample of licensing data; click here to access a complete history.
Inactive License
| License # | L-2015-050 |
| 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. If this is your business, please update your license status.
Check this license's status for Rex Electric Inc at the Kankakee County Planning Department.
This is a sample of licensing data; click here to access a complete history.
107
BuildZoom Score
959
Permits
- Building permit records show that Rex Electric Inc has worked on 959 permitted projects.
Rex Electric Inc Employees
BB
Bonita Benn
DS
Daniel A. Sergi
DB
David Brightwell
ER
Emil A. Radtke
Owner
GD
Glennon P Dolan
JL
Jeff Leensvaart
In State Designated Agent
JO
Jeffery Osborn
Owner
NG
Neal Geitner
PL
Patrick Lancaster
Chief Executive Officer
RL
Rex Electric & Technologies Llc
Licensee
SO
Sanjo Omoniyi
TO
Theresa Orozco