Updated: Jul 11, 2026
Location and Projects
Address
22W418 HILLCREST TER., Medinah, IL, 60157
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Mechanical Brothers Photos
Mechanical Brothers
Mechanical Brothers, 22 W418 Hillcrest Ter, Medinah, IL (Owned by: Marek Sadlowski) holds a General Contractor (Class D) license and 14 other licenses according to the City of Chicago license board.
Their BuildZoom score of 109 ranks in the top 5% of 65,686 Illinois licensed contractors.
Their license was verified as active when we last checked. If you are thinking of hiring Mechanical Brothers, we recommend double-checking their license status with the license board and using our bidding system to get competitive quotes.
Mechanical Brothers Services
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Mechanical Brothers Contact Information
Phone Number: (630) 935-5099
Address: 22W418 HILLCREST TER., Medinah, IL 60157
Mechanical Brothers Medinah
Quality
109
95th percentile
Pro tip:
We generally recommend hiring a contractor with a score higher than 95.
Mechanical Brothers has a BuildZoom score of 109, which places them above 95% of 65,686 contractors in Illinois.
Activity
|
18 projects
|
2025 |
|
22 projects
|
2024 |
|
22 projects
|
2023 |
Our building permit records indicate that Mechanical Brothers has worked on at least
62.0 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
|
10 projects
|
Commercial Renovations |
|
9 projects
|
Home Additions |
|
8 projects
|
New Constructions |
|
8 projects
|
HVAC projects |
Analyzing permits over the last 4 years shows that Mechanical Brothers mostly works on
commercial renovation
and home addition
projects.
Pricing
|
4 projects
|
< $5k |
|
1 project
|
$5k-$20k |
|
1 project
|
$20k-$50k |
|
6 projects
|
$50k-$100k |
|
13 projects
|
$100k-$250k |
|
10 projects
|
$250k-$500k |
|
6 projects
|
$500k-$1mil |
|
12 projects
|
$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.
This is a sample of this contractor's permits. Click here to access their complete permit history.
Dds 2019 cbrc: addition new 4 story 30 d.u. to existing one-story front façade 1st floor retail 27 car garage at 1st floor decks at 2nd/3rd/4th floors rooftop deck rooftop stair enclosures elevator penthouse elevator over-run entire building sprinklered as per plan (occupancy group r-2 s-2 m type iiia construction)
Valuation:
$4,591,000
Permit #:
101047147
Status:
issued
Fee:
$46,540
Permit Type:
N/A
Building Type:
N/A
*** direct developer services*** cbc 2019 revision to previously issued permit #100960694 of a new construction five story residential building with 50 dwelling units to address minor framing changes and a reduction in building height. consultant reviewer: v3 companies of il
Valuation:
$500,000
Permit #:
101064593
Status:
issued
Fee:
$24,028
Permit Type:
N/A
Building Type:
N/A
App no# 101060930 3245-3259 s calumet ave: plans for this permit are submitted under app # 101060929 3244 s king dr self-cert 2019 cbc: full building permit for 3 story 7 townhomes with full nfpa 13r sprinkler system 1 car garage at basement balcony at 2nd story rooftop deck rooftop stair enclosure entire townhomes sprinklered as per plan (occupancy group r-2 u type va construction)
Valuation:
$4,099,650
Permit #:
101060930
Status:
issued
Fee:
$20,642
Permit Type:
N/A
Building Type:
N/A
Self-cert 2019 cbc: full building permit for 3 story 7 townhomes with full nfpa 13 r sprinkler system 1 car garage at basement for each townhome balcony at 2nd story rooftop deck rooftop stair enclosure entire townhomes sprinklered as per plan (occupancy group r-2 u type va construction). plans shown on this permit is the plan set also for 3245-3259 s calumet ave under app# 101060930
Valuation:
$4,104,300
Permit #:
101060929
Status:
issued
Fee:
$20,742
Permit Type:
N/A
Building Type:
N/A
Spr 2019 cbrc; alteration and change of occupancy for vacant ground level business spaces with 4 sleeping units in 3-story building (expansion of existing group housing/dormitory use). work to include removal of existing storefront and installation of new windows and exit door. no work to existing boys mens dormitories on floors 2 and 3. existing on-site parking to remain. (convert 1s... see more
Valuation:
$750,000
Permit #:
101039051
Status:
complete
Fee:
$3,276
Permit Type:
N/A
Building Type:
N/A
B1-3. existing 1 story brick and terracotta business building. interior finish updates new kitchen equipment new back of house and storage layout. replace storefront entrance exterior brick tuckpointing. mechanical electrical and plumbing per plan
Valuation:
$740,000
Permit #:
101068082
Status:
issued
Fee:
$1,108
Permit Type:
N/A
Building Type:
N/A
Self-cert 2019 cbrc - interior non-structural renovation to an existing 4-story residential building.existing building height: 4-story 38'-2"existing number of dwelling units: 8 existing occupancy type r-2 no changeinterior renovation to original construction. cha affordable housing
Valuation:
$1,300,000
Permit #:
101064871
Status:
complete
Fee:
$5,698
Permit Type:
N/A
Building Type:
N/A
Sc 2019 cbc: erect a 4 story 4 dwelling unit type iiia masonry building with an occupiable roof deck front decks and two rear 2 car detached garages as per plans. r2 occupancy classification. strucrtural peer review provided
Valuation:
$1,200,000
Permit #:
101065641
Status:
issued
Fee:
$12,351
Permit Type:
N/A
Building Type:
N/A
Spr 2019 cbc: affordable -full building permit for 2 story + basement single family house with 2 outdoor parking spaces (conc. parking pad) (occupancy groups r-5 type v-a construction) (conditional permit subject to field inspections)
Valuation:
$165,000
Permit #:
101050955
Status:
issued
Fee:
$2,425
Permit Type:
N/A
Building Type:
N/A
Spr 2019 cbrc: existing and proposed r-5 single family residence - convert unfinished second floor into two bedrooms and bathroom to include structural modifications electrical plumbing and hvac modifications stair modifications
Valuation:
$200,000
Permit #:
101064692
Status:
issued
Fee:
$675
Permit Type:
N/A
Building Type:
N/A
Dds 2019 cbc: full building permit for 4 story 14 d.u. building 6 car garage at 1st floor 8 exterior parking spaces on concrete pad rooftop stair enclosure elevator over-run rear balcony & front deck at 2nd/3rd/4th story 6 high 4'-6 by 14'-6 masonry trash enclosure entire building sprinklered as per plans (occupancy group r-2 s-2 type iiia construction). consultant reviewer: v3 compan... see more
Valuation:
$2,910,150
Permit #:
101042676
Status:
issued
Fee:
$23,677
Permit Type:
N/A
Building Type:
N/A
Spr 2019 cbrc: interior and exterior alterations to existing 1 story manufacturing building to convert to daycare use. work to include demolish landscape site work exterior storefront and facade new partitions mechanical electrical and plumbing as per plans. i-4 institutional. iib construction.**certified corrections subject to field inspections & audit **
Valuation:
$1,700,000
Permit #:
101043811
Status:
issued
Fee:
$10,758
Permit Type:
N/A
Building Type:
N/A
Dds 2019 cbrc: interior alteration to existing ground level sanctuary area in 1 story with basement school building with change of hvac design in same area or work. includes alteration of existing exterior glass block wall to new glass curtain wall. no changes to site or other areas of building. non-sprinklered with fire alarm system (occupancy: group e-1; type iiia construction) cons... see more
Valuation:
$950,000
Permit #:
101049132
Status:
suspended
Fee:
$3,847
Permit Type:
N/A
Building Type:
N/A
Spr 2019: interior renovation of an existing religious brick masonry building and conversion to school use.hight 1 story conversion to 2-stories with addition of floor area.and new exterior stair and ramp. (occupancy: a-3 construction: 1b)**conditional permit subject to field inspections
Valuation:
$400,000
Permit #:
101017121
Status:
complete
Fee:
$23,888
Permit Type:
N/A
Building Type:
N/A
Spr 2019 cbc - new 2 sty. single family building with basement & roof deck (type 5a construction) new front steel stairs & rear stone patio new 2 car masonry garage with roof deck as per plans**certified corrections subject to field inspections & audit **
Valuation:
$500,000
Permit #:
101019519
Status:
issued
Fee:
$1,055
Permit Type:
N/A
Building Type:
N/A
Self-cert 2019 cbrc: interior alterations to office area toilet rooms and locker rooms in existing manufacturing facility. no change to existing use or area. 1-story -fully sprinklerd building. ( occupancy group f-1; construction type ii-b )
Valuation:
$386,823
Permit #:
101047187
Status:
complete
Fee:
$2,234
Permit Type:
N/A
Building Type:
N/A
Self cert 2019 crbc: interior gut remodel of existing 2-story va frame 25 ht. single-family residence including structural repairs basement dig down and new (158) sq. ft. rear deck (occupancy group r-5; type va construction)
Valuation:
$345,000
Permit #:
101060557
Status:
complete
Fee:
$1,074
Permit Type:
N/A
Building Type:
N/A
Self certified 2019 cbc. erect 2nd floor frame addition to existing 1-1/2 story with basement single family residence interior remodeling new rear open wood deck & new 2 car detached garage as per plan
Valuation:
$100,000
Permit #:
101067909
Status:
issued
Fee:
$1,354
Permit Type:
N/A
Building Type:
N/A
Sc 2019 cbc: erect 2 story 4 unit town-homes with a basement rear deck 6 foot-high privacy fence and 4 detached two car frame garages as per plans r-2 occ. type iii-a const. (6200 6202 6206 & 6208 south ellis ave)
Valuation:
$1,200,000
Permit #:
101023921
Status:
complete
Fee:
$14,507
Permit Type:
N/A
Building Type:
N/A
Self-cert 2019 cbrc: existing 2 story commercial building. demising of existing interior into two tenant spaces by landlord for general use for retail (17-17-0104-z 17-3-0207-pp). interior tenant buildout to be done under separate building permit aapplication. occupancy group b/m type ib construction
Valuation:
$200,000
Permit #:
101038800
Status:
complete
Fee:
$5,940
Permit Type:
N/A
Building Type:
N/A
Mechanical Brothers Reviews
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Verified License
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Mechanical Brothers License info
Verified License
| License # | TGC141962 |
| 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 Mechanical Brothers at the City of Chicago Data Portal.
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 Mechanical Brothers 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 # | CR3998 |
| Status | Active |
| County | Dupage County |
| Type | Hvac |
- When BuildZoom last verified this license, it had an expiration date of February, 2022. Check the current license status of Mechanical Brothers with the County of Dupage Contractor Registration Information
This is a sample of licensing data; click here to access a complete history.
License Not Verified
| License # | 2013-CR3998 |
| Status | Active |
| County | Dupage County |
| Type | Sub Contractor (Per Trade) |
- When BuildZoom last verified this license, it had an expiration date of December, 2015. Check the current license status of Mechanical Brothers with the County of DuPage
This is a sample of licensing data; click here to access a complete history.
License Not Verified
| License # | CR3998 |
| Status | Active |
| County | Dupage County |
| Type | Sub Contractor (Per Trade) |
- When BuildZoom last verified this license, it had an expiration date of December, 2015. Check the current license status of Mechanical Brothers with the County of DuPage
This is a sample of licensing data; click here to access a complete history.
License Not Verified
| License # | CL-15-21339 |
| Status | Active |
| Town | Orland Park |
| Type | Heating Vent & A/C Contractor |
- When BuildZoom last verified this license, it had an expiration date of December, 2015. Check the current license status of Mechanical Brothers 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 # | 2012-CR3998 |
| Status | Active |
| County | Dupage County |
| Type | Sub Contractor (Per Trade) |
- When BuildZoom last verified this license, it had an expiration date of December, 2015. Check the current license status of Mechanical Brothers with the County of DuPage
This is a sample of licensing data; click here to access a complete history.
Inactive License
| License # | CR3998 |
| 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 Mechanical Brothers 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-1823 |
| 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 Mechanical Brothers at the Contractors Licensed in Bartlett.
This is a sample of licensing data; click here to access a complete history.
Inactive License
| License # | 09LICH-0104 |
| 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 Mechanical Brothers 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-19-21339 |
| 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 Mechanical Brothers 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 # | 202404612 |
| 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 Mechanical Brothers at the Village of Oak Park.
This is a sample of licensing data; click here to access a complete history.
Inactive License
| License # | 201706112 |
| 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 Mechanical Brothers at the Village of Oak Park.
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 # | 09LICH-0104 |
| 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 Mechanical Brothers at the City of Evanston Building and Inspection Services.
This is a sample of licensing data; click here to access a complete history.
109
BuildZoom Score
398
Permits
- Building permit records show that Mechanical Brothers has worked on 398 permitted projects.
Mechanical Brothers Employees
MS
Marek Sadlowski
Owner