Updated: Jul 07, 2026
Location and Projects
Address
10005 CAMBRIDGE COURT, Mokena, IL, 60448
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HMM Systems Electrician
HMM Systems Inc, 10005 Cambridge Ct, Mokena, IL (Owned by: Roy K. Murray) holds a Electrical Contractor (General) license and 12 other licenses according to the City of Chicago license board.
Their BuildZoom score of 101 ranks in the top 12% of 65,686 Illinois licensed contractors.
Their license was verified as active when we last checked. If you are thinking of hiring HMM Systems Inc, we recommend double-checking their license status with the license board and using our bidding system to get competitive quotes.
HMM Systems Inc Contact Information
Phone Number: (708) 453-1215
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Address: 10005 CAMBRIDGE COURT, Mokena, IL 60448
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HMM Systems Inc Mokena
Quality
101
88th percentile
Pro tip:
We generally recommend hiring a contractor with a score higher than 95.
HMM Systems Inc has a BuildZoom score of 101, which places them above 88% of 65,686 contractors in Illinois.
Activity
|
4 projects
|
2025 |
|
4 projects
|
2024 |
|
5 projects
|
2023 |
Our building permit records indicate that HMM Systems Inc has worked on at least
13.0 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
|
6 projects
|
Electrical projects |
Analyzing permits over the last 4 years shows that HMM Systems Inc mostly works on
electrical project
projects.
Pricing
|
4 projects
|
< $5k |
|
1 project
|
$50k-$100k |
|
1 project
|
$100k-$250k |
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.
Electrical maintenance permit. occupancy: business. start date: 3/18/2025. end date: 3/18/2026. all work under this permit must be performed by employees of the listed electrical contractor. the electrical contractor must maintain complete written records of all work performed under this permit and make those records available to the building commissioner upon request
Valuation:
N/A
Permit #:
B200417491
Status:
issued
Fee:
$700
Permit Type:
Monthly maintenan...
Building Type:
N/A
Electrical maintenance permit. occupancy: business. start date: 3/18/2025. end date: 3/18/2026. all work under this permit must be performed by employees of the listed electrical contractor. the electrical contractor must maintain complete written records of all work performed under this permit and make those records available to the building commissioner upon request
Valuation:
N/A
Permit #:
B200417482
Status:
issued
Fee:
$900
Permit Type:
Monthly maintenan...
Building Type:
N/A
Line voltage electrical work. repair or alter devices on existing circuits. receptacle outlets: 3. lighting outlets: 1. specific location: low rise elevator room
Valuation:
$70,000
Permit #:
B200407353
Status:
issued
Fee:
$100
Permit Type:
Electrical work
Building Type:
N/A
Furnish & install (1) 480 volt 225 amp breaker in existing main distribution panel on 38th floor with feed to 28th floor 400 amp switch & feed to supply 150 kva transformer to feed (1) 225 amp 120-208 wye panel with tie to hogan ground with (3) 70 amp breakers & feeds to 27th floor water heater room for (3) hot water heaters with (3) 15 amp breakers & feeds for pumps. provide control ... see more
Valuation:
$86,800
Permit #:
B101055399
Status:
issued
Fee:
$225
Permit Type:
Electrical work
Building Type:
N/A
Electrical maintenance permit. occupancy: business. start date: 11/27/2024. end date: 3/27/2025. all work under this permit must be performed by employees of the listed electrical contractor. the electrical contractor must maintain complete written records of all work performed under this permit and make those records available to the building commissioner upon request
Valuation:
N/A
Permit #:
B200407308
Status:
complete
Fee:
$300
Permit Type:
Monthly maintenan...
Building Type:
N/A
Electrical maintenance permit. occupancy: business. start date: 11/15/2024. end date: 3/15/2025. all work under this permit must be performed by employees of the listed electrical contractor. the electrical contractor must maintain complete written records of all work performed under this permit and make those records available to the building commissioner upon request
Valuation:
N/A
Permit #:
B200405896
Status:
complete
Fee:
$300
Permit Type:
Monthly maintenan...
Building Type:
N/A
Line voltage electrical work. repair or alter devices on existing circuits. receptacle outlets: 1. lighting outlets: 1. specific location: floors
Valuation:
$1,500
Permit #:
B200415506
Status:
issued
Fee:
$250
Permit Type:
Electrical work
Building Type:
N/A
2019 cbrc: self-cert - interior alterations to office suite 1010 to include architectural electrical mechanical and plumbing as per plans. construction type -iib occupancy - b-business
Valuation:
$183,468
Permit #:
101022732
Status:
expired
Fee:
$1,744
Permit Type:
N/A
Building Type:
N/A
**fire alarm permit**modification of an existing chicago approved fire alarm/voice evacuation system (per 907.2.12 high-rise buildings) to accommodate new tenant renovation
Valuation:
$4,000
Permit #:
B101026400
Status:
complete
Fee:
$675
Permit Type:
Fire alarm system
Building Type:
N/A
Self cert: interior alterations of an existing first floor deli and dining space within an existing office building. includes architectural mechanical electrical and plumbing and addition of a new exterior entry and minor modifications to the existing facade within the area of work per plans. no structural. no change in use
Valuation:
$167,000
Permit #:
100805020
Status:
complete
Fee:
$4,072
Permit Type:
N/A
Building Type:
N/A
Remodel – interior commercial – for commercial projects and residential buildings with 3 or more uni
2025-05-14
Changing shower room into a wellness room including installing a sink and relocating a door
Valuation:
N/A
Permit #:
25INTC-0211
Status:
issued
Fee:
$1,256
Permit Type:
N/A
Building Type:
N/A
Croke fairchild duarte & beres suite 3400 install 89 data cables connect existing power for conference tables & card reader equipment
Valuation:
$22,400
Permit #:
B100996456
Status:
complete
Fee:
$150
Permit Type:
Electrical work
Building Type:
N/A
Interior build-out to first floor suite 0110 retail space ( esq. clothing ) on an existing 38 story building per plans
Valuation:
$215,000
Permit #:
100848858
Status:
complete
Fee:
$825
Permit Type:
N/A
Building Type:
N/A
Replace 450 existing garage fluorescent lights with led lights. replace conduit & wiring
Valuation:
$300,000
Permit #:
B100814351
Status:
complete
Fee:
$75
Permit Type:
Electrical work
Building Type:
N/A
Self-cert: interior alterations to office suite 450 as per plans
Valuation:
$650,000
Permit #:
100821023
Status:
complete
Fee:
$1,633
Permit Type:
N/A
Building Type:
N/A
Remodel – interior commercial – for commercial projects and residential buildings with 3 or more uni
2024-05-02
Interior remodel
Valuation:
N/A
Permit #:
24INTC-0162
Status:
issued
Fee:
$7,621
Permit Type:
N/A
Building Type:
N/A
March 2023 electrical maintenance
Valuation:
$1,500
Permit #:
B101020131
Status:
complete
Fee:
$75
Permit Type:
Monthly maintenan...
Building Type:
N/A
February 2023 monthly maintenance
Valuation:
$1,500
Permit #:
B101007180
Status:
complete
Fee:
$75
Permit Type:
Monthly maintenan...
Building Type:
N/A
February 2023 monthly maintenance
Valuation:
$1,500
Permit #:
B101007179
Status:
complete
Fee:
$75
Permit Type:
Monthly maintenan...
Building Type:
N/A
May 2023 monthly maintenance
Valuation:
$1,500
Permit #:
B101020136
Status:
complete
Fee:
$75
Permit Type:
Monthly maintenan...
Building Type:
N/A
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HMM Systems Inc Reviews
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Verified License
BuildZoom confirmed this contractor's license
HMM Systems Inc License info
Verified License
| License # | ECC72209 |
| Status | Active |
| City | City Of Chicago |
| Type | Electrical Contractor (General) |
- BuildZoom verified this license was active as of July 2026.
Verify this license's status for HMM Systems Inc at the City of Chicago Data Portal.
This is a sample of licensing data; click here to access a complete history.
License Not Verified
| License # | 24LICL-0006 |
| Status | Active |
| City | Evanston |
| Type | Electrical |
- When BuildZoom last verified this license, it had an expiration date of July, 2026. Check the current license status of HMM Systems Inc with the City of Evanston Building and Inspection Services
This is a sample of licensing data; click here to access a complete history.
License Not Verified
| License # | 13-00004149 |
| Status | Active |
| City | Aurora |
| Type | Elec(Com) Contractor |
- When BuildZoom last verified this license, it had an expiration date of February, 2015. Check the current license status of HMM Systems 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 # | CR4075 |
| Status | Active |
| County | Dupage County |
| Type | Sub Contractor (Per Trade) |
- When BuildZoom last verified this license, it had an expiration date of February, 2015. Check the current license status of HMM Systems Inc with the County of DuPage
This is a sample of licensing data; click here to access a complete history.
License Not Verified
| License # | 2013-CR4075 |
| Status | Active |
| County | Dupage County |
| Type | Sub Contractor (Per Trade) |
- When BuildZoom last verified this license, it had an expiration date of February, 2015. Check the current license status of HMM Systems Inc with the County of DuPage
This is a sample of licensing data; click here to access a complete history.
License Not Verified
| License # | 2012-CR4075 |
| Status | Active |
| County | Dupage County |
| Type | Sub Contractor (Per Trade) |
- When BuildZoom last verified this license, it had an expiration date of February, 2015. Check the current license status of HMM Systems Inc with the County of DuPage
This is a sample of licensing data; click here to access a complete history.
Inactive License
| License # | CR-10414 |
| 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
| License # | CR4075 |
| Status | Inactive |
| County | Dupage County |
| Type | Sub Contractor, 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 HMM Systems 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 # | ECC72209 |
| 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 HMM Systems 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
| 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
| 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 # | CR4075 |
| 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 HMM Systems 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 # | ECC72209 |
| 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 HMM Systems Inc at the City of Evanston Building and Inspection Services.
This is a sample of licensing data; click here to access a complete history.
101
BuildZoom Score
44
Permits
- Building permit records show that HMM Systems Inc has worked on 44 permitted projects.
HMM Systems Inc Employees
HI
H.M.M. Systems Inc.
Licensee
RM
Roy K. Murray
Owner
RM
Roy Murray
Owner