Updated: May 17, 2026
Location and Projects
Address
11217 W Becher St, West Allis, WI, 53227
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Illingworth Kilgust Mechanical Inc
Illingworth Kilgust Mechanical Inc, 11217 W Becher St, West Allis, WI (Employee: John Illingworth) holds a Hvac Contractor license and 9 other licenses according to the Milwaukee license board.
Their BuildZoom score of 112 ranks in the top 3% of 94,017 Wisconsin licensed contractors.
Their license was verified as active when we last checked. If you are thinking of hiring Illingworth Kilgust Mechanical Inc, we recommend double-checking their license status with the license board and using our project planner to get competitive quotes.
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Illingworth Kilgust Mechanical Inc Contact Information
Address: 11217 W Becher St, West Allis, WI 53227
Illingworth Kilgust Mechanical Inc West Allis
Quality
112
97th percentile
Pro tip:
We generally recommend hiring a contractor with a score higher than 95.
Illingworth Kilgust Mechanical Inc has a BuildZoom score of 112, which places them above 97% of 94,017 contractors in Wisconsin.
Activity
|
22 projects
|
2025 |
|
52 projects
|
2024 |
|
51 projects
|
2023 |
Our building permit records indicate that Illingworth Kilgust Mechanical Inc has worked on at least
125.0 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
|
12 projects
|
Home Additions |
|
6 projects
|
Commercial Renovations |
|
6 projects
|
New Constructions |
|
74 projects
|
HVAC projects |
Analyzing permits over the last 4 years shows that Illingworth Kilgust Mechanical Inc mostly works on
hvac project
and home addition
projects.
Pricing
|
16 projects
|
< $5k |
|
21 projects
|
$5k-$20k |
|
14 projects
|
$20k-$50k |
|
12 projects
|
$50k-$100k |
|
13 projects
|
$100k-$250k |
|
11 projects
|
$250k-$500k |
|
5 projects
|
$1mil+ |
The typical size of their permits is approximately $23,240. 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 Illingworth Kilgust Mechanical Inc
This is a sample of this contractor's permits. Click here to access their complete permit history.
Interior alterations and reconfiguration of south west side of lobby at existing restaurant to construct new restaurant and bar area
Valuation:
$291,251
Permit #:
BC24-000103
Status:
issued
Fee:
N/A
Permit Type:
Construction - re...
Building Type:
N/A
Mfcb - multi-family buildings (3+ dwelling units) or commercial buildings new construction additions
2023-03-10
Interior remodel of the existing mcdonalds. restrooms are shown on the drawings but they will not be touched they are to be left as is. new dinning finishes new front counter new seating
Valuation:
$200,000
Permit #:
MFCB-23-26
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Mfcb - multi-family buildings (3+ dwelling units) or commercial buildings new construction additions
2024-01-30
Adding new rooms in the facility for an added manufacturing process
Valuation:
$300,000
Permit #:
MFCB-24-8
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Renovation of lobby front desk retail and shops
Valuation:
$1,158,090
Permit #:
BC24-000001
Status:
issued
Fee:
N/A
Permit Type:
Construction - re...
Building Type:
N/A
Mfcb - multi-family buildings (3+ dwelling units) or commercial buildings new construction additions
2022-05-04
Phase ii of middle school renovations. this a continuation of permit hist-33824 (20202107). fees for both phases i & ii were paid on the 20202107 permit
Valuation:
$3,950,867
Permit #:
MFCB-22-42
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Potawatomi casino 3rd floor project first strike - interior remodel (hvac)
Valuation:
$10,800,000
Permit #:
HVAC-GEN-22-03470
Status:
complete
Fee:
$9,523
Permit Type:
N/A
Building Type:
N/A
Third street market food hall - core and shell hvac alteration
Valuation:
$1,250,000
Permit #:
HVAC-GEN-20-00529
Status:
complete
Fee:
$5,214
Permit Type:
N/A
Building Type:
N/A
Plumbing - commercial fixtures in mob1
Valuation:
$120,000
Permit #:
PLB-25-02159
Status:
complete
Fee:
$528
Permit Type:
N/A
Building Type:
N/A
Mfcb - multi-family buildings (3+ dwelling units) or commercial buildings new construction additions
2023-06-02
Removing an existing storefront and replacing it with a new storefront. removing flooring and ceilings in this area and replacing with new
Valuation:
$120,000
Permit #:
MFCB-23-63
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
New construction - rosen kia of milwaukee
Valuation:
$340,000
Permit #:
HVAC-GEN-24-00804
Status:
issued
Fee:
$2,723
Permit Type:
N/A
Building Type:
N/A
%pr - potowatomi first strike - 3rd floor
Valuation:
$75,000,000
Permit #:
PLB-22-03980
Status:
complete
Fee:
$9,542
Permit Type:
N/A
Building Type:
N/A
%pr - potowatomi first strike - 3rd floor
Valuation:
$75,000,000
Permit #:
PLB-GP-22-00281
Status:
complete
Fee:
$366
Permit Type:
Alteration/repair
Building Type:
Commercial
Hvac alteration
Valuation:
$3,300,000
Permit #:
HVAC-GEN-24-01417
Status:
issued
Fee:
$6,889
Permit Type:
N/A
Building Type:
N/A
Single family dwelling- new air conditioner installment
Valuation:
$80,000
Permit #:
HVAC-GEN-25-00671
Status:
triage
Fee:
$132
Permit Type:
N/A
Building Type:
N/A
Interior demolish and renovation
Valuation:
$1,800,000
Permit #:
BC23-000017
Status:
issued
Fee:
N/A
Permit Type:
Construction - re...
Building Type:
N/A
Deltrol controls - outdoor new chiller
Valuation:
$280,000
Permit #:
HVAC-CHLR-24-00010
Status:
issued
Fee:
$757
Permit Type:
N/A
Building Type:
Office manufacturing
Interior plumbing - plan review paid under plumbing-20-02257 - 1025 n broadway
Valuation:
$1,500,000
Permit #:
PLB-20-02508
Status:
complete
Fee:
$9,769
Permit Type:
N/A
Building Type:
N/A
Mfcb - multi-family buildings (3+ dwelling units) or commercial buildings new construction additions
2022-11-01
Adding administrative offices breakroom and bathrooms to existing facility
Valuation:
$5,000,000
Permit #:
MFCB-22-87
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Rosen nissan of madison - service and car wash addition interior alterations
Valuation:
N/A
Permit #:
BLDNCP-2025-06232
Status:
issued
Fee:
$3,209
Permit Type:
N/A
Building Type:
N/A
Replace old rooftops and addition some destratification fans
Valuation:
$320,000
Permit #:
2400714_Illi_Inc.
Status:
issued
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Illingworth Kilgust Mechanical Inc Reviews
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Recent Buildzoom Projects
Verified License
BuildZoom confirmed this contractor's license
Illingworth Kilgust Mechanical Inc License info
Verified License
| License # | 4939 |
| Status | Active |
| City | Milwaukee |
| Type | Hvac Contractor |
- BuildZoom verified this license was active as of May 2026.
Verify this license's status for Illingworth Kilgust Mechanical Inc at the City of Milwaukee License Search.
This is a sample of licensing data; click here to access a complete history.
Verified License
| License # | 132547 |
| Status | Active |
| City | Milwaukee |
| Type | Plumbing |
- BuildZoom verified this license was active as of May 2026.
Verify this license's status for Illingworth Kilgust Mechanical Inc at the City of Milwaukee License Search.
This is a sample of licensing data; click here to access a complete history.
Verified License
| License # | 227007 |
| Status | Active |
| City | Milwaukee |
| Type | Plumbing |
- BuildZoom verified this license was active as of May 2026.
Verify this license's status for Illingworth Kilgust Mechanical Inc at the City of Milwaukee License Search.
This is a sample of licensing data; click here to access a complete history.
Inactive License
| License # | 120322 |
| Status | Inactive |
| City | Milwaukee |
| Type | Hvac Contractor |
- According to the City of Milwaukee License Search, the status of this license was at one point cancelled. However, this information may have changed.
Check this license's status for Illingworth Kilgust Mechanical Inc at the City of Milwaukee License Search.
This is a sample of licensing data; click here to access a complete history.
Inactive License
| License # | 120322 |
| Status | Inactive |
| State | Wisconsin |
| Type | Electrical 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 Illingworth Kilgust Mechanical Inc at the Wisconsin Department of Safety and Professional Services.
This is a sample of licensing data; click here to access a complete history.
Inactive License
| License # | 17-PEOP-00084 |
| Status | Inactive |
| City | Milwaukee |
| Type | Hvac Contractor |
- According to the City of Milwaukee License Search, the status of this license was at one point cancelled. However, this information may have changed.
Check this license's status for Illingworth Kilgust Mechanical Inc at the City of Milwaukee License Search.
This is a sample of licensing data; click here to access a complete history.
Inactive License
| License # | 1088 |
| Status | Inactive |
| City | Milwaukee |
| Type | Design Professional |
- According to the City of Milwaukee License Search, the status of this license was at one point cancelled. However, this information may have changed.
Check this license's status for Illingworth Kilgust Mechanical Inc at the City of Milwaukee License Search.
This is a sample of licensing data; click here to access a complete history.
Inactive License
| License # | D-1547 |
| Status | Inactive |
| City | Milwaukee |
| Type | Design Professional |
- According to the City of Milwaukee License Search, the status of this license was at one point cancelled. However, this information may have changed.
Check this license's status for Illingworth Kilgust Mechanical Inc at the City of Milwaukee License Search.
This is a sample of licensing data; click here to access a complete history.
Inactive License
| License # | 2359 |
| Status | Inactive |
| City | Milwaukee |
| Type | Design Professional |
- According to the City of Milwaukee License Search, the status of this license was at one point cancelled. However, this information may have changed.
Check this license's status for Illingworth Kilgust Mechanical Inc at the City of Milwaukee License Search.
This is a sample of licensing data; click here to access a complete history.
Inactive License
| License # | S120322 |
| Status | Inactive |
| City | Milwaukee |
| Type | Electrical |
- According to the City of Milwaukee License Search, the status of this license was at one point cancelled. However, this information may have changed.
Check this license's status for Illingworth Kilgust Mechanical Inc at the City of Milwaukee License Search.
This is a sample of licensing data; click here to access a complete history.
112
BuildZoom Score
Insured
| Insurer | Marsh Usa. Inc |
440
Permits
- Building permit records show that Illingworth Kilgust Mechanical Inc has worked on 440 permitted projects.
Illingworth Kilgust Mechanical Inc Employees
JI
John Illingworth