Updated: Jun 04, 2026
Location and Projects
Address
199 W Whispering Hills DR, Naperville, IL, 60540
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American Mechanical Systems Inc
American Mechanical Systems Inc at 199 W Whispering Hills DR, Naperville, IL 60540, held a HVAC/Mechanical Contractor license (#CR-10986) with the Illinois contractors license board. We last verified the license was expired on 03-13-2026.
Their BuildZoom score is 0 because we haven’t been able to verify an active license. As a result, they’re not ranked in the top 50% of 65,686 Illinois contractors.
If you’re thinking about hiring them, we recommend double-checking their license status with your local licensing authority. Alternatively, use our project planner to be easily matched to qualified, licensed professionals in your area.
American Mechanical Systems Inc Services
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American Mechanical Systems Inc Contact Information
Phone Number: (630) 930-7745
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Address: 199 W Whispering Hills DR, Naperville, IL 60540
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American Mechanical Systems Inc Naperville
Quality
Alert*
Pro tip:
We generally recommend hiring a contractor with a score higher than 95.
*No active license on file. If you are American Mechanical Systems Inc, click “This is My Business” to update your information.
Activity
|
1 project
|
2025 |
|
5 projects
|
2024 |
Our building permit records indicate that American Mechanical Systems Inc has worked on at least
6.0 projects over the past 2 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
|
3 projects
|
Home Additions |
Analyzing permits over the last 4 years shows that American Mechanical Systems Inc mostly works on
home addition
projects.
Pricing
|
1 project
|
$50k-$100k |
|
1 project
|
$100k-$250k |
|
1 project
|
$250k-$500k |
|
1 project
|
$1mil+ |
The typical size of their permits is approximately $650,000. 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 American Mechanical Systems Inc
This is a sample of this contractor's permits. Click here to access their complete permit history.
Self-cert 2019 cbrc: interior alterations + rear & upper story dormer addition to 3-story two-flat residential building. removal of as-built front deck & wood screening planks in existing front fence that were both erected without building permits. occupancy group r-5. type iii-b construction. no structural work. no change in number of dwelling units nor occupancy type. total area of ... see more
Valuation:
$300,000
Permit #:
101052851
Status:
issued
Fee:
$2,659
Permit Type:
N/A
Building Type:
N/A
Self-cert 2019 cbrc: addition to first floor and expansion of stair landing on roof interior alteration to each floor new garage per plans. (use group r-5 construction type va)
Valuation:
$1,000,000
Permit #:
101057239
Status:
issued
Fee:
$2,365
Permit Type:
N/A
Building Type:
N/A
Self-cert 2019 cbrc: interior alterations for four story four apartment residential building and repairs from fire damage per plans. (occupancy group r-2 construction type iiib)
Valuation:
$5,000,000
Permit #:
101035409
Status:
issued
Fee:
$2,881
Permit Type:
N/A
Building Type:
N/A
Self-cert 2019 cbrc: interior alterations for four story four apartment residential building and repairs from fire damage per plans. (occupancy group r-2 construction type iiib)
Valuation:
$5,000,000
Permit #:
101035409
Status:
issued
Fee:
$2,881
Permit Type:
N/A
Building Type:
N/A
Self cert 2019 cbrc interior commercial alteration of former business unit on first floor of mixed use commercial and residential building to personal services/deauty salon. work includes demolition of non-structural partitions installation of 5 shampoo bowls installation of sink clothes washer and dryer per plans. existing two toilet rooms and coffee bar to remain per plans
Valuation:
$85,000
Permit #:
101050430
Status:
issued
Fee:
$925
Permit Type:
N/A
Building Type:
N/A
: we will be doing demolition on the inside of the facility. and building out a small coffee shop
Valuation:
$125,000
Permit #:
P2023-3946
Status:
final
Fee:
$2,697
Permit Type:
N/A
Building Type:
Building use group
Correct building code violations for one story addition that was built without a building permit to enclose walk-in coolers for exist restaurant on 1st floor. multi-story bulding contains restaurant on 1st floor and one dwelling unit on upper floor
Valuation:
$10,000
Permit #:
100850115
Status:
complete
Fee:
$825
Permit Type:
N/A
Building Type:
N/A
Spr 2019 cbc deconversion from 2 dwelling units to single family residence interior rehab as per plans
Valuation:
$85,000
Permit #:
100919661
Status:
expired
Fee:
$1,430
Permit Type:
N/A
Building Type:
N/A
Self-cert project. a-2 multi-unit converted to a-1 single-family. interior renovation as per plans
Valuation:
$225,000
Permit #:
100781456
Status:
complete
Fee:
$1,045
Permit Type:
N/A
Building Type:
N/A
Single family home interior rehab and new dormer addition as per plans
Valuation:
$45,000
Permit #:
100806503
Status:
complete
Fee:
$2,075
Permit Type:
N/A
Building Type:
N/A
Replace (1) furnace in unit #2f
Valuation:
N/A
Permit #:
100753397
Status:
issued
Fee:
$150
Permit Type:
N/A
Building Type:
N/A
Self-cert 2019 cbrc: whole house remodeling & 2nd story addition rear deck. (occupancy - r-5 construction type - v-a )
Valuation:
$206,000
Permit #:
100917437
Status:
expired
Fee:
$1,055
Permit Type:
N/A
Building Type:
N/A
Self-cert project. revision to existing permit #100781456. a-1 single family. structural modifications and new finished basement as per plans
Valuation:
$75,000
Permit #:
100807891
Status:
complete
Fee:
$550
Permit Type:
N/A
Building Type:
N/A
Oia 526 w 46th pl de-convert from 2 d.u. to single family residence in an existing 2-story building as per plans. remove and replace partially enclosed wood porch and replace with new open wood 2nd floor deck and 1st floor deck as per plans. **certified plan corrections project - conditional permit: subject to field inspections **
Valuation:
$45,000
Permit #:
100692158
Status:
complete
Fee:
$1,047
Permit Type:
N/A
Building Type:
N/A
Self-cert: int. & extension. alter. to exist'g 2 story frame & mas. building. w basement & attic including new exit from 2nd fl & new spiral stairs & duplexing up to attic space w new dormers per plans
Valuation:
$80,000
Permit #:
100826807
Status:
complete
Fee:
$1,850
Permit Type:
N/A
Building Type:
N/A
**self-cert** revision to permit 100672878 to include interior renovations new hvac relocation of plumbing fixtures and electrical work to the existing two story two dwelling unit building all work as per plans
Valuation:
$24,000
Permit #:
100694442
Status:
complete
Fee:
$550
Permit Type:
N/A
Building Type:
N/A
Interior remodeling of existing single family residence with basement.new rear wood porch. all work as per plans
Valuation:
$40,000
Permit #:
100699010
Status:
complete
Fee:
$1,425
Permit Type:
N/A
Building Type:
N/A
Revision to permit number 100686032. refrigeration/ventilation contractor change to american mechanical systems
Valuation:
$1
Permit #:
100710136
Status:
issued
Fee:
$150
Permit Type:
N/A
Building Type:
N/A
Addition ot existing house
Valuation:
N/A
Permit #:
2501291
Status:
issued
Fee:
N/A
Permit Type:
N/A
Building Type:
Residential
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American Mechanical Systems Inc License info
Inactive License
| License # | CR-10986 |
| 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 # | CR7233 |
| 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 American 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 # | 201802565 |
| 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 American Mechanical Systems Inc at the Village of Oak Park.
This is a sample of licensing data; click here to access a complete history.
Inactive License
| License # | CR7233 |
| Status | Inactive |
| County | Dupage County |
| Type | 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 American 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.
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BuildZoom Score
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- *No active license on file. If you are American Mechanical Systems Inc, click “This is My Business” to update your information.
17
Permits
- Building permit records show that American Mechanical Systems Inc has worked on 17 permitted projects.
American Mechanical Systems Inc Employees
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American Mechanical Systems, Inc
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