Updated: Jun 10, 2026
Location and Projects
Address
9835 Derby Ln, Westchester, IL, 60154
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Pro-temp of Illinois Electrician
Pro Temp of Illinois has been serving Illinois and the Chicagoland area for over 10 years. Pro Temp has built up a reputation for HVAC installation, service, maintenance, and design. We take our industry very seriously, which translates into thousands of satisfied customers throughout Illinois.
We provide high quality, professional HVAC installation and service at competitive prices to help our customers meet all of their HVAC needs. Our commitment to you, our customer, is to remain progressive in the industry and offer you the most innovative and quality materials that our market has to offer. We remain committed to excellence and our focus on employee training and safety ensures that we remain the premier HVAC contractor in Illinois
Our company works 24 hours a day 7 days a week to provide residents of the Chicago area and surrounding suburbs with the finest and highly trained HVAC technicians who will get your home or business systems running at their optimal and peak performance.
From BuildZoom: Pro-temp of Illinois, 9835 Derby Ln, Westchester, IL holds a General Contractor (Class C) license and 27 other licenses according to the City of Chicago license board.
Their BuildZoom score of 110 ranks in the top 4% of 65,686 Illinois licensed contractors.
Their license was verified as active when we last checked. If you are thinking of hiring Pro-temp of Illinois, we recommend double-checking their license status with the license board and using our project planner to get competitive quotes.
Pro-temp of Illinois Services
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Pro-temp of Illinois Westchester
Quality
110
96th percentile
Pro tip:
We generally recommend hiring a contractor with a score higher than 95.
Pro-temp of Illinois has a BuildZoom score of 110, which places them above 96% of 65,686 contractors in Illinois.
Activity
|
3 projects
|
2025 |
|
14 projects
|
2024 |
|
19 projects
|
2023 |
Our building permit records indicate that Pro-temp of Illinois has worked on at least
36.0 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
|
22 projects
|
Electrical projects |
Analyzing permits over the last 4 years shows that Pro-temp of Illinois mostly works on
electrical project
projects.
Pricing
|
17 projects
|
< $5k |
|
5 projects
|
$5k-$20k |
|
2 projects
|
$20k-$50k |
|
1 project
|
$50k-$100k |
|
1 project
|
$100k-$250k |
|
3 projects
|
$1mil+ |
The typical size of their permits is approximately $4,138. 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.
Spr 2019 cbrc coach shop heating system for metra demolition and removal of mechanical and electrical equipment including existing boilers piping valves all the unit heaters tributary steam and condensate piping condensate return units air handling units make up air units fans and additional items shown on the drawings. installation of new equipment per the mechanical schedule includi... see more
Valuation:
$4,000,000
Permit #:
101065457
Status:
issued
Fee:
$3,815
Permit Type:
N/A
Building Type:
N/A
Spr 2019 crbc: revision to permit #101041135 new commercial use one st0ry masonry; ground floor commercial - dog services trash enclosure and fence as per plans (occupancy type b; construction type iiia)(conditional permit subject to field inspections)
Valuation:
$50,000
Permit #:
101062981
Status:
issued
Fee:
$1,568
Permit Type:
N/A
Building Type:
N/A
Dds 2019 cbrc: *community building* alteration level-1: replacement of flooring plumbing fixtures light fixtures mechanical system. alteration level-2: reconfigure select spaces (new walls doors lighting mechanical. repairs: interior and exterior painting interior drywall. (occupancy type a-3 b; construction type vb) consultant reviewer: v3 companies of il
Valuation:
$2,000,000
Permit #:
101042747
Status:
suspended
Fee:
$10,119
Permit Type:
N/A
Building Type:
N/A
1-story type ia construction with a 4-story type iiia constriction above separated by a 3 hour horizontal assembly. mixed use building with 47 interior residential parking spaces at the ground floor and 68 dwelling units above. alley work is not approved at the time of permit issuance
Valuation:
N/A
Permit #:
20BLDC-0004
Status:
complete
Fee:
$367,575
Permit Type:
N/A
Building Type:
N/A
*direct developer services* pre-2019 code. revision permit #100776299 to revise exterior aesthetic and window openings of a new 4-story residential building of type iii-b (cbc 2019) construction w type i-c construction at first floor. ground floor residential with 89 units combined w 116 parking spaces with 3 accessible parking spaces at the ground level per plans. building is fully s... see more
Valuation:
$2,000,000
Permit #:
100969282
Status:
complete
Fee:
$41,955
Permit Type:
N/A
Building Type:
N/A
Addendum to dob permit #:100963855. revisions to mechanical system only. no changes to architectural plumbing electrical or structural systems; architectural plumbing electrical and structural systems all are approved uner permit 100963855
Valuation:
$100,000
Permit #:
101042717
Status:
suspended
Fee:
$3,895
Permit Type:
N/A
Building Type:
N/A
Repair/replacement affecting 1 systems : 2 rooftop packaged unit(casrtu3-1.500-20-2ot remote terminal unit will be located on the roof top replacing existing units.). electrical work under this permit = no. locations: 0 residential unit(s) 1 non-residential unit(s) exterior work roof top
Valuation:
$52,000
Permit #:
B200018568
Status:
issued
Fee:
$100
Permit Type:
Mechanical work
Building Type:
N/A
Repair/replacement affecting 1 systems : 2 rooftop packaged unit(carrier 48fcem09a2a5-0a0a0 carrier 48fcem12a3a5-0a0a0 remote terminal unit will be located on the roof top replacing existing units.). electrical work under this permit = no. locations: 0 residential unit(s) 2 non-residential unit(s) exterior work roof top
Valuation:
$42,000
Permit #:
B200021585
Status:
complete
Fee:
$625
Permit Type:
Mechanical work
Building Type:
N/A
Spr 2019 cbc the removal and disposal if the existing transfer tables overhead contact wire and structures furnish and install a new transfer table construct a new overhead contact power system and supporting structuresre grade the transfer table pit an adjust the rims and grates of the existing catch basins located within the pit per plans
Valuation:
$2,726,900
Permit #:
100944967
Status:
expired
Fee:
$8,150
Permit Type:
N/A
Building Type:
N/A
Upgrade existing union pacific sanding system for metra trains up yard.install new air compressor system new pipes replace 2 day bins on existing roof repair masonry cracks.new metal valve house 8'x10'x10'(conditional permit subject to field inspections)
Valuation:
$2,636,000
Permit #:
100887460
Status:
expired
Fee:
$3,075
Permit Type:
N/A
Building Type:
N/A
Existing 1 story detached house for household living in rs-1 with new second floor addition on detached house for household living in rs-1 with new exterior rear deck
Valuation:
$150,000
Permit #:
100979875
Status:
expired
Fee:
$3,475
Permit Type:
N/A
Building Type:
N/A
Sc 2019 cbc - full building permit for new construction of single family home 2 story 2 412 sf per plans all per 2019 cbc. current use is single family residence proposed use is single family residence per plans
Valuation:
$150,000
Permit #:
100918259
Status:
complete
Fee:
$4,203
Permit Type:
N/A
Building Type:
N/A
For permit 101051260: replacement other contractor. replacement plumbing contractor. new contractor(s) listed under other applicants and contractors on permit certificate
Valuation:
N/A
Permit #:
B200404759
Status:
complete
Fee:
$100
Permit Type:
Administrative ch...
Building Type:
N/A
2-story addition at rear; 2 ba case; ord. no. 2007-o-29 project halted work not completed
Valuation:
$159,290
Permit #:
132565
Status:
issued
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Self-cert 2019 cbrc: repair (7) units of a 3-story 16-unit residential building due to fire damage. (occupancy group r-2; construction type iiib)
Valuation:
$150,000
Permit #:
100949360
Status:
expired
Fee:
$3,584
Permit Type:
N/A
Building Type:
N/A
Self certified applicationinterior alterations with minor ceiling framing changes partition revisions hvac distribution revisions relocation of one sink revisions to lighting and power distribution. no changes to building envelope or exits no change to occupancy no changes to building floor area
Valuation:
$50,000
Permit #:
100849794
Status:
complete
Fee:
$825
Permit Type:
N/A
Building Type:
N/A
Spr 2019 cbc construction of new storage cage enclosure in the metra train yard
Valuation:
$125,900
Permit #:
100947449
Status:
expired
Fee:
$3,075
Permit Type:
N/A
Building Type:
N/A
Existing 14 story brick building (metra building ) domestic water piping system improvement and floor/wall repair project as per plans
Valuation:
$332,100
Permit #:
100791279
Status:
complete
Fee:
$825
Permit Type:
N/A
Building Type:
N/A
Revision to permit #101047436. to change of electrical (other) hvac contractors
Valuation:
N/A
Permit #:
B200021406
Status:
complete
Fee:
$100
Permit Type:
Administrative ch...
Building Type:
N/A
Spr 2019 cbc new detached garage at existing single family residence
Valuation:
$20,000
Permit #:
101050171
Status:
complete
Fee:
$650
Permit Type:
N/A
Building Type:
N/A
Recent Buildzoom Projects
Verified License
BuildZoom confirmed this contractor's license
Pro-temp of Illinois License info
Verified License
| License # | TGC035083 |
| Status | Active |
| City | City Of Chicago |
| Type | General Contractor (Class C) |
- BuildZoom verified this license was active as of June 2026.
Verify this license's status for Pro-temp of Illinois at the City of Chicago Data Portal.
This is a sample of licensing data; click here to access a complete history.
Verified License
| License # | ECC92622 |
| 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 Pro-temp of Illinois at the City of Chicago Data Portal.
This is a sample of licensing data; click here to access a complete history.
Verified License
| License # | CL-25-19305 |
| Status | Active |
| Town | Orland Park |
| Type | Hvac/Mechanical Contractor |
- BuildZoom verified this license was active as of June 2026.
Verify this license's status for Pro-temp of Illinois at 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-18-19305 P |
| 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 Pro-temp of Illinois 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
| Status | Active |
| Town | Palatine |
| Type | Multiple |
- When BuildZoom last verified this license, it had an expiration date of December, 2021. Check the current license status of Pro-temp of Illinois 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-16-19305 |
| Status | Active |
| Town | Orland Park |
| Type | Heating Vent & A/C Contractor |
- When BuildZoom last verified this license, it had an expiration date of February, 2016. Check the current license status of Pro-temp of Illinois 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 # | 15-00019695 |
| Status | Active |
| City | Aurora |
| Type | Elec(Com) Contractor |
- When BuildZoom last verified this license, it had an expiration date of February, 2016. Check the current license status of Pro-temp of Illinois 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 # | 14-00008931 |
| Status | Active |
| City | Aurora |
| Type | Heating Contractor |
- When BuildZoom last verified this license, it had an expiration date of February, 2016. Check the current license status of Pro-temp of Illinois 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-15-19305 |
| Status | Active |
| Town | Orland Park |
| Type | Heating Vent & A/C Contractor |
- When BuildZoom last verified this license, it had an expiration date of February, 2016. Check the current license status of Pro-temp of Illinois 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 # | L-2009-106 |
| Status | Active |
| County | Kankakee County |
| Type | Electric, Hvac |
- When BuildZoom last verified this license, it had an expiration date of August, 2015. Check the current license status of Pro-temp of Illinois with the Kankakee County Planning Department
This is a sample of licensing data; click here to access a complete history.
License Not Verified
| License # | 2009-CR00218 |
| Status | Active |
| County | Dupage County |
| Type | Sub Contractor (Per Trade) |
- When BuildZoom last verified this license, it had an expiration date of February, 2016. Check the current license status of Pro-temp of Illinois with the County of DuPage
This is a sample of licensing data; click here to access a complete history.
Inactive License
| License # | 25978 |
| Status | Inactive |
| Hoffman Estates | |
| Type | General Contractor |
- According to the Village of Hoffman Estates, the status of this license was at one point cancelled. However, this information may have changed.
Check this license's status for Pro-temp of Illinois at the Village of Hoffman Estates.
This is a sample of licensing data; click here to access a complete history.
Inactive License
| License # | 29254 |
| Status | Inactive |
| Hoffman Estates | |
| Type | General Contractor |
- According to the Village of Hoffman Estates, the status of this license was at one point cancelled. However, this information may have changed.
Check this license's status for Pro-temp of Illinois at the Village of Hoffman Estates.
This is a sample of licensing data; click here to access a complete history.
Inactive License
| License # | CR00218 |
| 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.
Check this license's status for Pro-temp of Illinois 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.
This is a sample of licensing data; click here to access a complete history.
Inactive License
| License # | CR00218 |
| 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.
Check this license's status for Pro-temp of Illinois 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 # | 6058 |
| Status | Inactive |
| Hoffman Estates | |
| Type | General Contractor |
- According to the Village of Hoffman Estates, the status of this license was at one point cancelled. However, this information may have changed.
Check this license's status for Pro-temp of Illinois at the Village of Hoffman Estates.
This is a sample of licensing data; click here to access a complete history.
Inactive License
| License # | CL-20-19305 |
| 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.
Check this license's status for Pro-temp of Illinois 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-19-19305 |
| 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.
Check this license's status for Pro-temp of Illinois 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-19-26211 |
| Status | Inactive |
| Town | Orland Park |
| Type | General 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.
Check this license's status for Pro-temp of Illinois at the Village of Orland Park Contractor License.
This is a sample of licensing data; click here to access a complete history.
Inactive License
| Status | Inactive |
| City | City Of Chicago |
| Type | D $2,000,000 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.
This is a sample of licensing data; click here to access a complete history.
Inactive License
| License # | CL-18-19305 |
| 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.
Check this license's status for Pro-temp of Illinois at the Village of Orland Park Contractor License.
This is a sample of licensing data; click here to access a complete history.
Inactive License
| Status | Inactive |
| City | City Of Chicago |
| Type | D $2,000,000 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.
This is a sample of licensing data; click here to access a complete history.
Inactive License
| License # | 202101485 |
| 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 Pro-temp of Illinois at the Village of Oak Park.
This is a sample of licensing data; click here to access a complete history.
Inactive License
| License # | CL-2151 |
| 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.
Check this license's status for Pro-temp of Illinois at the Contractors Licensed in Bartlett.
This is a sample of licensing data; click here to access a complete history.
Inactive License
| Status | Inactive |
| County | Cook County |
| Type | Hvac |
- 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
| 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.
This is a sample of licensing data; click here to access a complete history.
Inactive License
| License # | 09LICH-0314 |
| 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.
Check this license's status for Pro-temp of Illinois at the City of Evanston Building and Inspection Services.
This is a sample of licensing data; click here to access a complete history.
110
BuildZoom Score
Insured
| Insurer | Bechtold Ins |
| Insured up to | $100,000 |
1.9K
Permits
- Building permit records show that Pro-temp of Illinois has worked on 1862 permitted projects.
I just wanted to submit a review about these guys who did work on our furnacel They showed up when no one else would in the sub-zero weather. Truly remarkable professionals!