Updated: Jul 14, 2026
Location and Projects
Address
272 West Lake Street, Elmhurst, IL, 60126
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Airtech Heating & Air Conditioning Corp Photos
Airtech Heating & Air Conditioning Corp Construction
Family owned and operated HVAC company serving Elmhurst, DuPage County, Cook County, and nearby areas for over 50 years. Provides heating and air conditioning repair, replacement, installation, and maintenance, plus indoor air quality services, water heater service, dryer vent cleaning, and commercial HVAC solutions. Offers 24/7 emergency service, maintenance plans, financing options, and dependable help for homes and businesses dealing with hot, humid summers and cold Illinois winters. Focused on honest service, fast response times, quality workmanship and long term comfort, safety, and energy efficiency for every customer. Technicians help homeowners and businesses stay comfortable year round with practical solutions tailored to property.
From BuildZoom: Airtech Heating & Air Conditioning Corp, 272 W Lake St, Elmhurst, IL (Owned by: Wilhelm A. Thiess) holds a General Contractor (Class D) license and 12 other licenses according to the City of Chicago license board.
Their BuildZoom score of 106 ranks in the top 7% of 65,686 Illinois licensed contractors.
Their license was verified as active when we last checked. If you are thinking of hiring Airtech Heating & Air Conditioning Corp, we recommend double-checking their license status with the license board and using our bidding system to get competitive quotes.
Airtech Heating & Air Conditioning Corp Contact Information
Phone Number: (630) 331-0341
Address: 272 West Lake Street, Elmhurst, IL 60126
Airtech Heating & Air Conditioning Corp Elmhurst
Quality
106
93rd percentile
Pro tip:
We generally recommend hiring a contractor with a score higher than 95.
Airtech Heating & Air Conditioning Corp has a BuildZoom score of 106, which places them above 93% of 65,686 contractors in Illinois.
Activity
|
14 projects
|
2025 |
|
8 projects
|
2024 |
|
4 projects
|
2023 |
Our building permit records indicate that Airtech Heating & Air Conditioning Corp has worked on at least
26.0 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
|
Commercial Renovations |
Analyzing permits over the last 4 years shows that Airtech Heating & Air Conditioning Corp mostly works on
commercial renovation
projects.
Pricing
|
2 projects
|
< $5k |
|
2 projects
|
$5k-$20k |
|
2 projects
|
$50k-$100k |
|
5 projects
|
$100k-$250k |
|
3 projects
|
$250k-$500k |
|
5 projects
|
$500k-$1mil |
|
1 project
|
$1mil+ |
The typical size of their permits is approximately $300,000. 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 Airtech Heating & Air Conditioning Corp
This is a sample of this contractor's permits. Click here to access their complete permit history.
: new interior remodel building of new dental practice out in an existing single story ii-b building. existing electrical service to be reused and new outlets light fixtures and electrical equipment to be installed. exiting water service to be reused and new fixtures and plumbing lines for fixtures and equipment. existing rtus to be reuse with new ducts and new diffuser
Valuation:
$978,000
Permit #:
P2024-2163
Status:
complete
Fee:
$6,392
Permit Type:
N/A
Building Type:
Building use group
Self cert 2019 cbc: interior alterations to existing ground floor tenant space as per plans. work to include new partitions ceilings finishes electrical plumbing lighting and life safety work. (b-business construction type 1b)
Valuation:
$551,900
Permit #:
101065069
Status:
complete
Fee:
$975
Permit Type:
N/A
Building Type:
N/A
Self-cert 2019 cbrc: interior remodeling of existing 1 198 s.f. tenant space 26 to remove former tenant build-out and leave an open white box space with new ada restroom. space will be vacant after work under this permit. existing zoning - no change. no change in use and no structural work. (occupancy group m type iib construction)
Valuation:
$150,000
Permit #:
101064236
Status:
complete
Fee:
$975
Permit Type:
N/A
Building Type:
N/A
Self-cert 2019 cbrc: alterations on level 01 in existing 4-story museum building converting an exhibit space and an accessory storage room into an accesory workshop room and accesory storage space (occupancy groups a-3 b s-2; type ia construction)
Valuation:
$127,900
Permit #:
101064467
Status:
complete
Fee:
$1,825
Permit Type:
N/A
Building Type:
N/A
Self-cert 2019 cbrc: renovation of an existing bar and restaurant space. work to include demolition new interior partitions doors finishes millwork toilet rooms as well as mechanical electrical and plumbing. (proposed/existing construction: iiib;proposed existing use: a-2)
Valuation:
$875,000
Permit #:
101046360
Status:
complete
Fee:
$3,173
Permit Type:
N/A
Building Type:
N/A
Dds 2019 cbc: full building permit: new 3 story 24 859 sf place of worship and study. 17 garage parking spaces and 9 off alley surface parking spaces. (occupancy a-3 s-2 b construction type iia) v3 companies of il
Valuation:
$5,000,000
Permit #:
101040122
Status:
issued
Fee:
$27,006
Permit Type:
N/A
Building Type:
N/A
Self-cert 2019 cbrc: alterations on level 01 in existing 4-story museum building converting an exhibit space and an accessory storage room into an accesory workshop room and accesory storage space (occupancy groups a-3 b s-2; type ia construction)
Valuation:
$127,900
Permit #:
101061823
Status:
suspended
Fee:
$1,775
Permit Type:
N/A
Building Type:
N/A
Description of work: self-cert 2019 cbrc: interior tenant improvement of an existing bar and club including mechanical electrical and plumbing upgrads at an existing 1-story non-sprinklered masonry building. no work on the exterior. (occupancy group a-2 assembly type iii-a construction c1-2 zoning district aa-3 zoning occupancy)
Valuation:
$150,000
Permit #:
101051781
Status:
complete
Fee:
$1,775
Permit Type:
N/A
Building Type:
N/A
Self cert permit to alter former travel agency office to medical services non-ambulatory care facility and corporate business office on 3rd floor of existing 4-story masonry building. work includes waiting room reception treatment room offices break room conference room per plans. b occ
Valuation:
$150,000
Permit #:
101047489
Status:
suspended
Fee:
$977
Permit Type:
N/A
Building Type:
N/A
Self-cert 2019 cbrc: interior alterations to rooms l1022 l1024 and l1026 in the 10th floor of the existing frankel building at mount sinai hospital. work includes modifications within the rooms to support new functions and layout (mechanical electrical and fire protection - relocations of fixtures/devices to accommodate new work). work also includes architectural finish upgrades and n... see more
Valuation:
$150,000
Permit #:
101010758
Status:
complete
Fee:
$875
Permit Type:
N/A
Building Type:
N/A
Interior renovation to the front lobby and office area located at 1101 w. 43rd street. the scope includes few interior walls relocation and additional office furniture. all existing utilities are to remain
Valuation:
$75,000
Permit #:
101016278
Status:
complete
Fee:
$875
Permit Type:
N/A
Building Type:
N/A
Sinai hospital (institutional occupancy) ep lab: equipment replacement project
Valuation:
$750,000
Permit #:
101047405
Status:
complete
Fee:
$1,775
Permit Type:
N/A
Building Type:
N/A
Interior tenant building out at ground level 2257 w. irving park rd. the scope of work includes adding interior non bearing partitions building office suite. all work is connected to existing hvac split -unit water and sanitary line service and electrical panel
Valuation:
$85,000
Permit #:
100995783
Status:
complete
Fee:
$825
Permit Type:
N/A
Building Type:
N/A
Interior building out in existing office space located at 910 w. van buren st suite 600. the scope of work is building out of dental office which is an expansion of exisitng dental office in next suite. the scope of work will use exisitng ahu for heating and cooling. the existing water and sanitary lines are used for plumbing work and exisitng electrical service is used for elctrical ... see more
Valuation:
$85,000
Permit #:
100962163
Status:
complete
Fee:
$825
Permit Type:
N/A
Building Type:
N/A
Interior office building out in existing vacant space located at 2300 s. halsted. the scope of work will include new interior partitions with new layout. the hvac will be provided by new split furnace units. the plumbing will be tied to existing water line. the electrical will be fed by new 200amp electrical panel
Valuation:
$669,000
Permit #:
100863784
Status:
complete
Fee:
$1,932
Permit Type:
N/A
Building Type:
N/A
Self-cert 2019 cbrc interior alterations to existing ground floor retail tenant space (con type iiib occ m)
Valuation:
$84,500
Permit #:
101069997
Status:
complete
Fee:
$975
Permit Type:
N/A
Building Type:
N/A
: jackman & co plan review #25-9480r with inspections kitchen hood mechanical system
Valuation:
N/A
Permit #:
F2025-0530
Status:
final
Fee:
$50
Permit Type:
N/A
Building Type:
Building use group
Self cert- 2019 new dental suite interior buildout. new distribution of existing mechanical systems (2 zones) electrical and plumbing
Valuation:
$350,000
Permit #:
100897665
Status:
expired
Fee:
$1,019
Permit Type:
N/A
Building Type:
N/A
Self cert: interior build-out to a ground floor tenant space as per plans. no change in existing e-business use. no structural work to be performed
Valuation:
$329,500
Permit #:
100848937
Status:
complete
Fee:
$834
Permit Type:
N/A
Building Type:
N/A
Rooftop deck and penthouse addition including meps
Valuation:
N/A
Permit #:
24ADDC-0062
Status:
issued
Fee:
$12,852
Permit Type:
N/A
Building Type:
N/A
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Airtech Heating & Air Conditioning Corp License info
Verified License
| License # | TGC140161 |
| Status | Active |
| City | City Of Chicago |
| Type | General Contractor (Class D) |
- BuildZoom verified this license was active as of July 2026.
Verify this license's status for Airtech Heating & Air Conditioning Corp at the City of Chicago Data Portal.
This is a sample of licensing data; click here to access a complete history.
Verified License
| License # | CR0003835 |
| Status | Active |
| County | Dupage County |
| Type | Sub Contractor, Hvac |
- BuildZoom verified this license was active as of July 2026.
Verify this license's status for Airtech Heating & Air Conditioning Corp at the County of Dupage Contractor Registration Information.
This is a sample of licensing data; click here to access a complete history.
License Not Verified
| Status | Active |
| Town | Palatine |
| Type | Hvac |
- When BuildZoom last verified this license, it had an expiration date of December, 2021. Check the current license status of Airtech Heating & Air Conditioning Corp with the Village of Palatine Registered Contractors
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 |
| 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
| License # | CL-20-26440 |
| 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 Airtech Heating & Air Conditioning Corp 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-19-26440 |
| 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 Airtech Heating & Air Conditioning Corp 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 # | 19LICH-0027 |
| 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 Airtech Heating & Air Conditioning Corp 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 | 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
| License # | 202510184 |
| 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 Airtech Heating & Air Conditioning Corp at the Village of Oak Park.
This is a sample of licensing data; click here to access a complete history.
Inactive License
| Status | Inactive |
| Town | Bartlett |
| Type | Hvac |
- According to the Contractors Licensed in Bartlett, 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 |
| 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
| License # | CR7893 |
| 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 Airtech Heating & Air Conditioning Corp at the County of Dupage Contractor Registration Information.
This is a sample of licensing data; click here to access a complete history.
106
BuildZoom Score
69
Permits
- Building permit records show that Airtech Heating & Air Conditioning Corp has worked on 69 permitted projects.
Airtech Heating & Air Conditioning Corp Employees
WT
Wilhelm Thiess
Owner
WT
Wilhelm A. Thiess
Owner
WT
Wilhelm Thiess
Owner