Updated: May 26, 2026
Location and Projects
Address
1900 TYLER RD 100, Saint Charles, IL, 60174
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Sun Mechanical Systems, Inc.
Sun Mechanical Systems, Inc., 1900 Tyler Rd, St. Charles, IL (Owned by: Edward Niemic) holds a Heating Ventilation And Air Conditioning (Hva) license and 12 other licenses according to the Virginia 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 Sun Mechanical Systems, Inc., we recommend double-checking their license status with the license board and using our project planner to get competitive quotes.
Sun Mechanical Systems, Inc. Contact Information
Phone Number: (630) 444-1744
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Address: 1900 TYLER RD 100, St. Charles, IL 60174
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Sun Mechanical Systems, Inc. St. Charles
Quality
103
90th percentile
Pro tip:
We generally recommend hiring a contractor with a score higher than 95.
Sun Mechanical Systems, Inc. has a BuildZoom score of 103, which places them above 90% of 65,686 contractors in Illinois.
Activity
|
7 projects
|
2025 |
|
8 projects
|
2024 |
|
5 projects
|
2023 |
Our building permit records indicate that Sun Mechanical Systems, Inc. has worked on at least
20.0 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
|
9 projects
|
Commercial Renovations |
Analyzing permits over the last 4 years shows that Sun Mechanical Systems, Inc. mostly works on
commercial renovation
projects.
Pricing
|
1 project
|
$20k-$50k |
|
1 project
|
$250k-$500k |
|
2 projects
|
$500k-$1mil |
|
10 projects
|
$1mil+ |
The typical size of their permits is approximately $2,177,040. 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 Sun Mechanical Systems, Inc.
This is a sample of this contractor's permits. Click here to access their complete permit history.
Direct developer services. 2019 cbc. existing 12 story 59 dwelling unit building. interior renovations will include like for like replacement of fixtures finishes and mechanical equipment throughout common areas and all dwelling units; accessibility upgrades to common areas added universal design components at 12 units; and conversion of 2 units for audio/visual impaired residents. ex... see more
Valuation:
$6,334,010
Permit #:
101063790
Status:
issued
Fee:
$35,077
Permit Type:
N/A
Building Type:
N/A
Direct developer services. 2019 cbc. existing 15 story 77 dwelling unit building. interior renovations will include like for like replacement of fixtures finishes and mechanical equipment throughout common areas and all dwelling units; accessibility upgrades to common areas added universal design components at 16 units; and conversion of 2 units for audio/visual impaired residents. ex... see more
Valuation:
$7,230,036
Permit #:
101063789
Status:
issued
Fee:
$44,871
Permit Type:
N/A
Building Type:
N/A
(direct developer services 2019 cbc) initial building out for speculative office space (tenant space #3) in an existing 1-story warehouse as per plans. (occupancy classification: s-1 b construction type: iib) consultant reviewer: v3 companies of il
Valuation:
$425,000
Permit #:
101048120
Status:
complete
Fee:
$11,262
Permit Type:
N/A
Building Type:
N/A
Dds 2019 cbc: alteration of existing four story school building consisting of cosmetic repairs and improvements on exterior and interior restroom & kitchen renovation replacement of doors. electrical mechanical and plumbing work as per plans. (ii-a construction b-business e-1 education occupancy) consultant reviewer: v3 companies of il
Valuation:
$2,177,040
Permit #:
101046636
Status:
complete
Fee:
$58,774
Permit Type:
N/A
Building Type:
N/A
Dds 2019 cbrc: exterior and interior renovation to an existing 3 storyoffice and residential building to remodel 28 residential units and lounge construct a enagement center on the ground floor per plans. consultant reviewer: globetrotters engineering
Valuation:
$2,500,000
Permit #:
101007904
Status:
issued
Fee:
$24,414
Permit Type:
N/A
Building Type:
N/A
Dds 2019 cbc - interior & exterior alterations to existing warehouse for initial tenant building out (tenant space #4) as per plans. (occupancy classification: s-1 b construction type: iib) consultant reviewer: v3 companies of il
Valuation:
$825,000
Permit #:
101048106
Status:
issued
Fee:
$9,762
Permit Type:
N/A
Building Type:
N/A
Dds 2019 cbc: revision to permit #101046636. work to include kitchen changes handrail modification new rated ceilings and lighting. (ii-a construction b-business e-1 education occupancy) consultant reviewer: v3 companies of il
Valuation:
$2,177,040
Permit #:
101056805
Status:
suspended
Fee:
$9,639
Permit Type:
N/A
Building Type:
N/A
Self cert 2019 cbrc: interior alterations to 25th floor office suite for hntb. work to include demolish new partitions electrical mechanical and plumbing as per plans. 1a construction. b-business
Valuation:
$3,100,000
Permit #:
101022855
Status:
complete
Fee:
$11,980
Permit Type:
N/A
Building Type:
N/A
** cbc 2019 ** ** selfcert permit ** interior renovation of existing tenant office suite on floors 8 & 16. renovation includes demolition of existing space in preparation for a white box space with new lighting
Valuation:
$737,460
Permit #:
100970948
Status:
phased permitting
Fee:
$12,796
Permit Type:
N/A
Building Type:
N/A
Self-cert 2019 cbrc: interior alterations in exisitng office building on the 25th floor in existing full floor office suite 2500 as per plans. (occupancy group b; type 1a construction)
Valuation:
$500,000
Permit #:
100975551
Status:
complete
Fee:
$1,445
Permit Type:
N/A
Building Type:
N/A
Self-cert 2019 cbrc: interior alterations in exisitng office building on the 18th floor in existing office suite 1800 as per plans. (occupancy group b; type 1a construction)
Valuation:
$450,000
Permit #:
100975565
Status:
complete
Fee:
$2,186
Permit Type:
N/A
Building Type:
N/A
Direct developer services 2019 cbc: new construction of a one (1) story industrial building (shell and core only) and associated site work with 422 parking stalls 60 truck docks 131 trailer stalls and 48 bike parking spaces as per plans. (occupancies b f-1 f-2 s-1 & s-2; construction type iib) consultant reviewer: v3 companies of il
Valuation:
$40,556,000
Permit #:
100892238
Status:
complete
Fee:
$234,480
Permit Type:
N/A
Building Type:
N/A
For permit 101060007: replacement electrical contractor. replacement plumbing contractor. replacement other contractor. replacement general contractor. new contractor(s) listed under other applicants and contractors on permit certificate
Valuation:
N/A
Permit #:
B200403853
Status:
complete
Fee:
$100
Permit Type:
Administrative ch...
Building Type:
N/A
Zoning m1 - tradeshow exhibit office/storage/manufacturing expansion of existing warehouse
Valuation:
$4,921,905
Permit #:
23-00214
Status:
issued
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Spr 2019 cbrc: interior remodeling of warehouse and office space and addition toilet rooms. (occupancy group s; construction type 3a) as per plans**certified corrections subject to field inspections & audit **
Valuation:
$50,000
Permit #:
101016007
Status:
suspended
Fee:
$2,229
Permit Type:
N/A
Building Type:
N/A
Revision to permit #100803909 to revise the second floor plan of a 2-story day care center by adding a private bathroom within director's office space per plans
Valuation:
$35,000
Permit #:
101055954
Status:
complete
Fee:
$3,325
Permit Type:
N/A
Building Type:
N/A
Interior renovations only to an existing 1 story general manufacturing use building for new haz mat storage room for commercial and industrial epoxy floor coatings for concrete floors as per plans
Valuation:
$1,200,000
Permit #:
100855428
Status:
expired
Fee:
$2,996
Permit Type:
N/A
Building Type:
N/A
New heat pump or refrigeration equip electrical work under this permit = yes. locations: 0 residential unit(s) 1 non-residential unit(s) 1 interior common areas suite 305
Valuation:
$50,000
Permit #:
B200001196
Status:
suspended
Fee:
$400
Permit Type:
Mechanical work
Building Type:
N/A
Mechanical upgrades to roof of existing 2-story warehouse as per plans. work to include adding 3 gas heaters 1 exhaust fan and relocation of 1 make-up air unit
Valuation:
$500,000
Permit #:
100856151
Status:
complete
Fee:
$825
Permit Type:
N/A
Building Type:
N/A
Remodel – interior commercial – for commercial projects and residential buildings with 3 or more uni
2023-06-29
Renovation of interior existing classroom and office spaces. work includes selective demolition architectural mechanical and electrical scope. no change to occupany. no extr work
Valuation:
N/A
Permit #:
23INTC-0209
Status:
issued
Fee:
$4,942
Permit Type:
N/A
Building Type:
N/A
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Sun Mechanical Systems, Inc. Reviews
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Verified License
BuildZoom confirmed this contractor's license
Sun Mechanical Systems, Inc. License info
Verified License
| License # | 2705176559 |
| Status | Active |
| State | Virginia |
| Type | Heating Ventilation And Air Conditioning (Hva) |
- BuildZoom verified this license was active as of May 2026.
Verify this license's status for Sun Mechanical Systems, Inc. at the Virginia Department of Professional and Occupational Regulation.
This is a sample of licensing data; click here to access a complete history.
Verified License
| Status | Active |
| County | Cook County |
| Type | Hvac |
| Date Issued | 01-21-2026 |
- BuildZoom verified this license was active as of May 2026.
This is a sample of licensing data; click here to access a complete history.
License Not Verified
| License # | CL-18-18590 S |
| Status | Active |
| Town | Orland Park |
| Type | Hvac/Mechanical Contractor |
- When BuildZoom last verified this license, it had an expiration date of December, 2018. Check the current license status of Sun Mechanical Systems, 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 # | 15-00013875 |
| Status | Active |
| City | Aurora |
| Type | Heating Contractor |
- When BuildZoom last verified this license, it had an expiration date of December, 2016. Check the current license status of Sun Mechanical Systems, Inc. with the The City of Aurora, IL
This is a sample of licensing data; click here to access a complete history.
Inactive License
| License # | H01244 |
| Status | Inactive |
| City | Columbus |
| Type | Heating Hvac |
- According to the The City of Columbus, OH, 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 Sun Mechanical Systems, Inc. at the The City of Columbus, OH.
This is a sample of licensing data; click here to access a complete history.
Inactive License
| License # | CL-2559 |
| Status | Inactive |
| Town | Bartlett |
| Type | {U'license Type': U'heating/Air Conditioning'} |
- 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.
Check this license's status for Sun Mechanical Systems, Inc. at the Contractors Licensed in Bartlett.
This is a sample of licensing data; click here to access a complete history.
Inactive License
| License # | CR6681 |
| Status | Inactive |
| County | Dupage County |
| Type | Sub Contractor, Hvac |
- 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 Sun Mechanical 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 # | CL-19-18590 |
| Status | Inactive |
| Town | Orland Park |
| Type | Hvac/Mechanical 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 Sun Mechanical Systems, 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 # | CLCL10042934-01-2020 |
| Status | Inactive |
| City | Kansas City |
| Type | Heating And Ventilating Contractor |
- According to the Kansas City Licensed Contractors, 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 Sun Mechanical Systems, Inc. at the Kansas City Licensed Contractors.
This is a sample of licensing data; click here to access a complete history.
Inactive License
| License # | CL-18-18590 |
| Status | Inactive |
| Town | Orland Park |
| Type | Hvac/Mechanical 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 Sun Mechanical Systems, 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 # | CL-114 |
| Status | Inactive |
| Town | Bartlett |
| Type | {U'license Type': U'hvac'} |
- 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.
Check this license's status for Sun Mechanical Systems, Inc. at the Contractors Licensed in Bartlett.
This is a sample of licensing data; click here to access a complete history.
Inactive License
| License # | 11LICH-0030 |
| Status | Inactive |
| City | Evanston |
| Type | Hvac |
- 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 Sun Mechanical 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
| License # | CL-17-18590 |
| Status | Inactive |
| Town | Orland Park |
| Type | Hvac/Mechanical 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 Sun Mechanical Systems, Inc. at the Village of Orland Park Contractor License.
This is a sample of licensing data; click here to access a complete history.
103
BuildZoom Score
130
Permits
- Building permit records show that Sun Mechanical Systems, Inc. has worked on 130 permitted projects.
Sun Mechanical Systems, Inc. Employees
EN
Edward Niemic
Owner
JS
John Joseph Schillace
Supervisor
JS
John Schillace
Owner