Updated: Jun 03, 2026
Location and Projects
Address
128 Pratt Blvd, Roselle, IL, 60172
Use our bidding system to
request a quote
J&b Mechanical Systems Inc
J&b Mechanical Systems Inc, 128 Pratt Blvd, Roselle, IL holds a Contractor Registration license and 4 other licenses according to the Kankakee County license board.
Their BuildZoom score of 95 ranks in the top 22% of 65,686 Illinois licensed contractors.
Their license was verified as active when we last checked. If you are thinking of hiring J&b Mechanical Systems Inc, we recommend double-checking their license status with the license board and using our project planner to get competitive quotes.
J&b Mechanical Systems Inc Services
Start a project today:
J&b Mechanical Systems Inc Contact Information
Phone Number: (630) 924-1725
Address: 128 Pratt Blvd, Roselle, IL 60172
J&b Mechanical Systems Inc Roselle
Quality
95
78th percentile
Pro tip:
We generally recommend hiring a contractor with a score higher than 95.
J&b Mechanical Systems Inc has a BuildZoom score of 95, which places them above 78% of 65,686 contractors in Illinois.
Activity
|
1 project
|
2025 |
|
5 projects
|
2023 |
Our building permit records indicate that J&b Mechanical Systems Inc has worked on at least
6.0 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
|
3 projects
|
Commercial Renovations |
Analyzing permits over the last 4 years shows that J&b Mechanical Systems Inc mostly works on
commercial renovation
projects.
Pricing
|
1 project
|
$100k-$250k |
|
1 project
|
$500k-$1mil |
|
1 project
|
$1mil+ |
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 J&b Mechanical Systems Inc
This is a sample of this contractor's permits. Click here to access their complete permit history.
Zoning b2 - type a restaurant (ord 22-041) new ground up 1 story restaurant
Valuation:
$1,925,000
Permit #:
22-05832
Status:
issued
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Zoning b5 - clothing retail interior tenant improvements
Valuation:
$520,539
Permit #:
23-00493
Status:
issued
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Replace the existing split system with one comfortmaker 5 ton split system air cooled r410a located on the roof serving unit 306
Valuation:
N/A
Permit #:
101019458
Status:
issued
Fee:
$75
Permit Type:
N/A
Building Type:
N/A
Zoning b5 retail clothing store interior alteration to existing lease space
Valuation:
$200,000
Permit #:
23-02367
Status:
issued
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Self-certification for renovation of the interior/exterior of an existing type f (mercantile) building for an existing mcdonald's restaurant. the building classification is iii-b. the proposed use/occupancy classification will remain the same
Valuation:
$630,000
Permit #:
100750025
Status:
complete
Fee:
$12,872
Permit Type:
N/A
Building Type:
N/A
An interior tenant build-out of 804 sq. ft. for relocation of restaurant (jimmy john's) within an exist mercantile space per plans - previous use: mercantile (florist shop)
Valuation:
$125,000
Permit #:
100861030
Status:
complete
Fee:
$575
Permit Type:
N/A
Building Type:
N/A
Alterations to existing retail building to include demolish of tower and east wall for 17 new parking spaces and site work
Valuation:
$473,000
Permit #:
100775451
Status:
complete
Fee:
$9,822
Permit Type:
N/A
Building Type:
N/A
Self-cert: interior alterations to exiting retail space to accommodate new retail tenant. work includes partitions mechanical electrical and plumbing
Valuation:
$175,000
Permit #:
100741373
Status:
complete
Fee:
$825
Permit Type:
N/A
Building Type:
N/A
Self-cert: interior alterations to existing 1 story retail space for a new sprint store as per plans
Valuation:
$175,000
Permit #:
100741028
Status:
complete
Fee:
$825
Permit Type:
N/A
Building Type:
N/A
Renovation to an existing 1-story mcdonald's restaurant to include exterior site work for a side-by-side drive thru and work to the interior and exterior of the building
Valuation:
$1
Permit #:
100709603
Status:
complete
Fee:
$1,575
Permit Type:
N/A
Building Type:
N/A
Zoning b5 - type a restaurant interior alteration
Valuation:
N/A
Permit #:
22-02925
Status:
issued
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
: tenant finish - showcase
Valuation:
N/A
Permit #:
22-1836-TNTFN
Status:
final
Fee:
$1,631
Permit Type:
N/A
Building Type:
Building use group
Self-cert: interior renovations to business use space for future medical office tenant.work includes partitions selective demolition mechanical electrical and plumbing
Valuation:
$350,000
Permit #:
100740513
Status:
complete
Fee:
$2,408
Permit Type:
N/A
Building Type:
N/A
****self certification programinterior build-out of retail shell space for new 7-11 mercantile storenew plumbing electrical mechanical and framing within space
Valuation:
$650,000
Permit #:
100760433
Status:
complete
Fee:
$825
Permit Type:
N/A
Building Type:
N/A
****self certification programinterior build-out of retail shell space for new 7-11 mercantile store.new plumbing electrical mechanical and framing within space
Valuation:
$650,000
Permit #:
100758461
Status:
complete
Fee:
$825
Permit Type:
N/A
Building Type:
N/A
Spr 2019 cbc single family residence existing & new occupancy r5 new second floor addition some interior renovation of existing with new electrical. plumbing & mechanical per plans
Valuation:
$80,000
Permit #:
100936311
Status:
complete
Fee:
$2,120
Permit Type:
N/A
Building Type:
N/A
***self certification processprevious use - f (mercantile) proposed use - f (mercantile)interior remodel of exist. tenant space for new 7-11 store w new entry door*** for re-permit (revisions to reference permit # 100669420)
Valuation:
$350,000
Permit #:
100701779
Status:
complete
Fee:
$825
Permit Type:
N/A
Building Type:
N/A
Modify existing front façade change storefront and doors locations on side front and rear façade and prep interior space for future dentist office per plans
Valuation:
$86,000
Permit #:
100803607
Status:
complete
Fee:
$1,143
Permit Type:
N/A
Building Type:
N/A
Installation of a new single story building to be used as an olive garden as per plans. no excavation to exceed 12ft
Valuation:
$1,000,000
Permit #:
100472714
Status:
complete
Fee:
$2,487
Permit Type:
N/A
Building Type:
N/A
Interior renovation of 1 774 sf 2nd and 3rd floor residential units including plumbing. mechanical and electrical. also resurfacing of existing parking lot and new 6'-0 high gate and fence 25 total linear feet. no work done for 1st floor commercial space. **certified plan corrections project - conditional permit: subject to field inspections **
Valuation:
$30,000
Permit #:
100534734
Status:
complete
Fee:
$1,002
Permit Type:
N/A
Building Type:
N/A
J&b Mechanical Systems Inc Reviews
BuildZoom hasn't received any reviews for J&b Mechanical Systems Inc. Click here to be alerted when reviews are posted about them.
Recent Buildzoom Projects
Verified License
BuildZoom confirmed this contractor's license
J&b Mechanical Systems Inc License info
Verified License
| License # | REG-2025-265 |
| Status | Active |
| County | Kankakee County |
| Type | Contractor Registration |
| Date Issued | 10-23-2025 |
- BuildZoom verified this license was active as of February 2026.
Verify this license's status for J&b Mechanical Systems Inc at the Kankakee County Planning Department.
This is a sample of licensing data; click here to access a complete history.
Verified License
| Status | Active |
| County | Cook County |
| Type | Hvac |
| Date Issued | 12-18-2025 |
- 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 # | 15666 |
| Status | Active |
| Hoffman Estates | |
| Type | General Contractor |
- BuildZoom verified this license was active as of December 2025.
Verify this license's status for J&b Mechanical Systems Inc at the Village of Hoffman Estates.
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 # | 1318831-HVACCONT |
| Status | Inactive |
| State | Wisconsin |
| Type | Hvac Contractor |
- According to the Wisconsin Department of Safety and Professional Services, the status of this license was at one point cancelled. However, this information may have changed.
Check this license's status for J&b Mechanical Systems Inc at the Wisconsin Department of Safety and Professional Services.
This is a sample of licensing data; click here to access a complete history.
95
BuildZoom Score
37
Permits
- Building permit records show that J&b Mechanical Systems Inc has worked on 37 permitted projects.