Updated: Jun 02, 2026
Location and Projects
Address
401 E PROSPECT AVE, Mt Prospect, IL, 60056
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Gray Wolf Construction LLC
Gray Wolf Construction LLC at 401 E PROSPECT AVE, Mt Prospect, IL 60056, held a General Contractor license (#TGC107399) with the City of Chicago contractors license board with an expiration date of 03-12-2027. We last verified the license was expired on 06-01-2026.
Their BuildZoom score is 0 because we haven’t been able to verify an active license. As a result, they’re not ranked in the top 50% of 65,686 Illinois contractors.
If you’re thinking about hiring them, we recommend double-checking their license status with your local licensing authority. Alternatively, use our project planner to be easily matched to qualified, licensed professionals in your area.
Gray Wolf Construction LLC Services
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Gray Wolf Construction LLC Contact Information
Phone Number: (630) 422-7956
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Address: 401 E PROSPECT AVE, Mt Prospect, IL 60056
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Gray Wolf Construction LLC Mt Prospect
Quality
Alert*
Pro tip:
We generally recommend hiring a contractor with a score higher than 95.
*No active license on file. If you are Gray Wolf Construction LLC, click “This is My Business” to update your information.
Activity
|
1 project
|
2024 |
|
2 projects
|
2023 |
Our building permit records indicate that Gray Wolf Construction LLC has worked on at least
3.0 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.
Pricing
|
1 project
|
$50k-$100k |
|
1 project
|
$250k-$500k |
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 Gray Wolf Construction LLC
This is a sample of this contractor's permits. Click here to access their complete permit history.
Interior remodeling of existing 3-story masonry building with basement to convert from single family home to 7 dwelling units with new front concrete/steel porch and new rear steel porch
Valuation:
$1,000,000
Permit #:
100989475
Status:
complete
Fee:
$4,516
Permit Type:
N/A
Building Type:
N/A
Replace rear enclosed porch with open porch internal renovations for an existing 2 story/2 unit residence per plans
Valuation:
$270,000
Permit #:
101015937
Status:
expired
Fee:
$759
Permit Type:
N/A
Building Type:
N/A
New kitchen and bathroom cabinetry, replace plumbing fixtures and all associated piping doors paint trim drywall approx. 1200sqft for 2 units. electrical permit#101004744 no water heater installed on this permit
Valuation:
$55,600
Permit #:
101005957
Status:
issued
Fee:
$800
Permit Type:
N/A
Building Type:
N/A
For permit 101046915: replacement general contractor. replacement other contractor. new contractor(s) listed under other applicants and contractors on permit certificate. change of owner for permit 101046915. new owner listed on this permit
Valuation:
N/A
Permit #:
B200403894
Status:
complete
Fee:
$100
Permit Type:
Administrative ch...
Building Type:
N/A
Change plumber to w.k.u. plumbing service co change gc to gray wolf construction llc and change hvac to s.h. heating air condtioning & remodeling on100935407
Valuation:
$1
Permit #:
100999618
Status:
issued
Fee:
$75
Permit Type:
N/A
Building Type:
N/A
Existing 3 story + basement 16 unit masonry building. -install new plumbing supply risers & new fixtures in kitchens & baths-install new electric in kitchen & bathroom only. retrim all existing electrical fixtures.-address code violations.-no mechanical work.-all work per plans
Valuation:
$114,000
Permit #:
100811837
Status:
complete
Fee:
$1,096
Permit Type:
N/A
Building Type:
N/A
Revision to org permit 100853037 change contractors: plumber to chicago water & plumbing llc gc to gray wolf construction vent/heat to art of heating & cooling llc
Valuation:
$75,000
Permit #:
100871121
Status:
issued
Fee:
$75
Permit Type:
N/A
Building Type:
N/A
Spr 2019 cbrc: replace existing two story wood porch and stair with new - same size and location (occupancy group r-3; type iia construction)
Valuation:
$14,000
Permit #:
100936178
Status:
expired
Fee:
$375
Permit Type:
N/A
Building Type:
N/A
Revision to change of general contractor to gray wolf construction llc and plumbing contractor to chicago water & plumbing for 100766914
Valuation:
$1
Permit #:
100814157
Status:
issued
Fee:
$150
Permit Type:
N/A
Building Type:
N/A
Revision to permit # 100786745 & 100742918 to change gc to gray wolf construction llc
Valuation:
$1
Permit #:
100814514
Status:
issued
Fee:
$150
Permit Type:
N/A
Building Type:
N/A
**self cert** interior demolition only of non load bearing 2nd and 3rd floor apartments as per plan. no change in use-e business
Valuation:
$90,000
Permit #:
100862455
Status:
complete
Fee:
$1,640
Permit Type:
N/A
Building Type:
N/A
Porch repairs only for existing 3 story open wood porch. (existing 3 story masonry residential building). all work per plans
Valuation:
$7,200
Permit #:
100840488
Status:
complete
Fee:
$350
Permit Type:
N/A
Building Type:
N/A
Reinstate permit # 100811837
Valuation:
N/A
Permit #:
100899521
Status:
issued
Fee:
$623
Permit Type:
N/A
Building Type:
N/A
Reinstate permit #100663337 and change gc to gray wolf construction llc
Valuation:
N/A
Permit #:
100842590
Status:
issued
Fee:
$356
Permit Type:
N/A
Building Type:
N/A
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Gray Wolf Construction LLC Reviews
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Gray Wolf Construction LLC License info
Inactive License
| License # | TGC107399 |
| Status | Inactive |
| City | City Of Chicago |
| Type | General Contractor (Class D) |
- According to the City of Chicago Data Portal, 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 Gray Wolf Construction LLC at the City of Chicago Data Portal.
This is a sample of licensing data; click here to access a complete history.
Inactive License
| Status | Inactive |
| City | City Of Chicago |
| Type | C $5,000,000 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. If this is your business, please update your license status.
This is a sample of licensing data; click here to access a complete history.
Inactive License
| Status | Inactive |
| City | City Of Chicago |
| Type | C $5,000,000 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. If this is your business, please update your license status.
This is a sample of licensing data; click here to access a complete history.
ALERT*
BuildZoom Score
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- *No active license on file. If you are Gray Wolf Construction LLC, click “This is My Business” to update your information.
11
Permits
- Building permit records show that Gray Wolf Construction LLC has worked on 11 permitted projects.