Updated: Jun 04, 2026
Location and Projects
Address
219 WILLIAMS RD, Barrington, IL, 60010
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North Bohemian HVAC Cor
North Bohemian HVAC Cor, 219 Williams Rd, Inverness, IL (Owned by: Karel Gresl) holds a Hvac license and 9 other licenses according to the Cook County license board.
Their BuildZoom score of 105 ranks in the top 8% of 65,686 Illinois licensed contractors.
Their license was verified as active when we last checked. If you are thinking of hiring North Bohemian HVAC Cor, we recommend double-checking their license status with the license board and using our project planner to get competitive quotes.
North Bohemian HVAC Cor Contact Information
Phone Number: (773) 882-4401
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Address: 219 WILLIAMS RD, Inverness, IL 60010
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North Bohemian HVAC Cor Inverness
Quality
105
92nd percentile
Pro tip:
We generally recommend hiring a contractor with a score higher than 95.
North Bohemian HVAC Cor has a BuildZoom score of 105, which places them above 92% of 65,686 contractors in Illinois.
Activity
|
12 projects
|
2025 |
|
14 projects
|
2024 |
|
19 projects
|
2023 |
Our building permit records indicate that North Bohemian HVAC Cor has worked on at least
45.0 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
|
8 projects
|
Home Additions |
|
4 projects
|
Commercial Renovations |
|
3 projects
|
New Constructions |
|
43 projects
|
HVAC projects |
Analyzing permits over the last 4 years shows that North Bohemian HVAC Cor mostly works on
hvac project
and home addition
projects.
Pricing
|
1 project
|
$5k-$20k |
|
4 projects
|
$20k-$50k |
|
5 projects
|
$50k-$100k |
|
12 projects
|
$100k-$250k |
|
6 projects
|
$250k-$500k |
|
7 projects
|
$500k-$1mil |
The typical size of their permits is approximately $125,392. 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 North Bohemian HVAC Cor
This is a sample of this contractor's permits. Click here to access their complete permit history.
Self cert 2019 cbrc: renovation of an existing frame 2-story residence with a basement (occupancy group: r-5 construction type vb). scope includes new exterior siding windows & roofing. scope also includes new rear deck & pergola and modifying existing electrical systems
Valuation:
$315,000
Permit #:
101065624
Status:
issued
Fee:
$675
Permit Type:
N/A
Building Type:
N/A
Standard plan review project. 2019 cbrc: renovation of an existing masonry 2-flat. scope includes the renovation of the second floor replacement of an existing interior stair connecting the first floor and second floor and modifications to the existing electrical plumbing & hvac systems (occupancy r-5; type iii-b construction)
Valuation:
$270,000
Permit #:
101068092
Status:
issued
Fee:
$982
Permit Type:
N/A
Building Type:
N/A
Level 2 alteration to five (5) existing dwelling units of existing nine (9) dwelling units (r-2) 4-story + basement building of type iii-a construction
Valuation:
$530,000
Permit #:
101063101
Status:
issued
Fee:
$1,840
Permit Type:
N/A
Building Type:
N/A
Spr 2019 cbrc single-family addition and interior alteration of second floor only. expand dormer roof addition second floor bathroom addition bedroom and closets. all new finishes. rs-3 use group to remain
Valuation:
$150,000
Permit #:
101064448
Status:
complete
Fee:
$975
Permit Type:
N/A
Building Type:
N/A
Self cert spr 2019 cbc: interior renovation of existing 728 square foot basement at a single-family home; and addition of a 175 square foot deck in rear yard. (occupancy group r-5; type va construction)
Valuation:
$160,000
Permit #:
101062840
Status:
issued
Fee:
$675
Permit Type:
N/A
Building Type:
N/A
2019 cbrc: interior alterations and parking lot paving/landscaping with new metal fencing and metal gate. building out of space on basement 1st and 2nd floors in existing 2-story brick commercial building. work includes new hydraulic elevator mechanical ventilation cooling plumbing and electrical for new kitchen and bathrooms. change of occupancy from religious (assembly a3) to medica... see more
Valuation:
$450,000
Permit #:
101032178
Status:
issued
Fee:
$13,095
Permit Type:
N/A
Building Type:
N/A
Addition of new family room and principal bedroom and p. bathroom on second floor on top of new famil room for a single family residence. new basement area includes office and full bathroom. to include m.e.p. per plans **certified plans corrections: conditional permit subject to field inspections **
Valuation:
$30,000
Permit #:
101066118
Status:
issued
Fee:
$975
Permit Type:
N/A
Building Type:
N/A
Spr 2019 cbrc: interior renovation of 36 units in existing 10 story 135 dwelling unit multi-family brick building. 28 980 sf total work. occupancy group r-2 type iiib construction.(**conditional permit subject to field inspections)
Valuation:
$900,000
Permit #:
101033985
Status:
issued
Fee:
$22,205
Permit Type:
N/A
Building Type:
N/A
Self-cert 2019 cbc: erect new 2 story single family residence w basement and 2 car detached garage as per plans (occupancy group r-5; type v-a construction)
Valuation:
$437,000
Permit #:
101070213
Status:
issued
Fee:
$3,025
Permit Type:
N/A
Building Type:
N/A
Self-certification permit for interior remodel of 3 dwelling units in existing multi-family building. no exterior work. new plumbing fixtures new hvac system new electrical devices and lighting
Valuation:
$720,000
Permit #:
101010589
Status:
complete
Fee:
$2,534
Permit Type:
N/A
Building Type:
N/A
Self-certification permit for interior remodel of 3 dwelling units in existing multi-family building. no exterior work. new plumbing fixtures new hvac system new electrical devices and lighting
Valuation:
$750,000
Permit #:
101008948
Status:
expired
Fee:
$2,534
Permit Type:
N/A
Building Type:
N/A
Existing 1-story masonry store building conversion into counseling office w/h new 2nd floor addition trash enclosure 4 feet high iron fence along west division street and north laramie 6 feet wooden fence along the alley and east property line and parking lot landscape
Valuation:
$125,392
Permit #:
101055311
Status:
issued
Fee:
$5,551
Permit Type:
N/A
Building Type:
N/A
Self-cert 2019 cbrc: renovation of 2nd and 3rd floor dwelling units interior only (except rooftop condensers) no site work
Valuation:
$150,000
Permit #:
101064417
Status:
issued
Fee:
$1,050
Permit Type:
N/A
Building Type:
N/A
Existing r-5 iii-a single family residence to remain r-5 iii-a residence. gut remodel of interior of residence and masonry and frame addition at rear
Valuation:
$500,000
Permit #:
101022935
Status:
issued
Fee:
$4,187
Permit Type:
N/A
Building Type:
N/A
Spr 2019 cbrc: new 2nd floor frame addition at rear & interior alterations including limited mep work as arch per plans
Valuation:
$240,000
Permit #:
101066555
Status:
issued
Fee:
$975
Permit Type:
N/A
Building Type:
N/A
Spr 2019 crc - rs-1 zoned lot with existing 2 story brick single family dwelling over basement. addition of +/-400sf frame structure to third floor of structure per plans. **certified plans corrections: conditional permit subject to field inspections **
Valuation:
$200,000
Permit #:
101025247
Status:
suspended
Fee:
$875
Permit Type:
N/A
Building Type:
N/A
Spr 2019 cbrc: interior renovation of 8 units in existing 4 story 16 dwelling unit multi-family brick building with basement.11 371.8 sf total work
Valuation:
$250,000
Permit #:
101040879
Status:
complete
Fee:
$3,999
Permit Type:
N/A
Building Type:
N/A
Spr 2019 cbc: interior removation in a exising residential building on the 6th and 7th floors to combine units 601&701 per plans. (2019 cbrc use group r2 construction type 3b)
Valuation:
$500,000
Permit #:
101038944
Status:
issued
Fee:
$1,744
Permit Type:
N/A
Building Type:
N/A
Sc 2019 cbc: erect a 2 story frame single family residence with a basement and a detached 2 car garage as per plans. type v-a const r-5 occ
Valuation:
$900,000
Permit #:
100993562
Status:
expired
Fee:
$5,553
Permit Type:
N/A
Building Type:
N/A
Spr 2019 cbc. interior alterations and repairs to existing two story two dwelling units apartment building with basement (occupancy r-5 construction va) including electrical plumbing and hvac. all work as per plans to correct building code violations
Valuation:
$55,000
Permit #:
100998335
Status:
suspended
Fee:
$1,225
Permit Type:
N/A
Building Type:
N/A
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Verified License
BuildZoom confirmed this contractor's license
North Bohemian HVAC Cor License info
Verified License
| Status | Active |
| County | Cook County |
| Type | Hvac |
| Date Issued | 05-07-2026 |
- BuildZoom verified this license was active as of June 2026.
This is a sample of licensing data; click here to access a complete history.
Verified License
| License # | CON-009305-2026 |
| Status | Active |
| Town | Palatine |
| Type | Mechanical/Hvac Contractor Registration |
| Class | Mechanical/HVAC |
| Date Issued | 02-23-2026 |
- BuildZoom verified this license was active as of April 2026.
Verify this license's status for North Bohemian HVAC Cor at the Village of Palatine Registered Contractors.
This is a sample of licensing data; click here to access a complete history.
License Not Verified
| License # | CR5446 |
| Status | Active |
| County | Dupage County |
| Type | Sub Contractor (Per Trade) |
- When BuildZoom last verified this license, it had an expiration date of December, 2014. Check the current license status of North Bohemian HVAC Cor with the County of DuPage
This is a sample of licensing data; click here to access a complete history.
License Not Verified
| License # | 2014-CR5446 |
| Status | Active |
| County | Dupage County |
| Type | Sub Contractor (Per Trade) |
- When BuildZoom last verified this license, it had an expiration date of December, 2014. Check the current license status of North Bohemian HVAC Cor with the County of DuPage
This is a sample of licensing data; click here to access a complete history.
Inactive License
| License # | CON-006199-2023 |
| Status | Inactive |
| Town | Palatine |
| Type | Mechanical/Hvac Contractor Registration |
| Class | Mechanical/HVAC |
- According to the Village of Palatine Registered 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 North Bohemian HVAC Cor at the Village of Palatine Registered Contractors.
This is a sample of licensing data; click here to access a complete history.
Inactive License
| License # | 21LICH-0010 |
| 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 North Bohemian HVAC Cor 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 # | CR5446 |
| 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 North Bohemian HVAC Cor 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 # | 20LICH-0010 |
| 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 North Bohemian HVAC Cor 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 # | 20LICH-0010 |
| 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 North Bohemian HVAC Cor 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 # | 201706231 |
| 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 North Bohemian HVAC Cor at the Village of Oak Park.
This is a sample of licensing data; click here to access a complete history.
105
BuildZoom Score
170
Permits
- Building permit records show that North Bohemian HVAC Cor has worked on 170 permitted projects.
North Bohemian HVAC Cor Employees
KG
Karel Gresl
Owner