Updated: Jul 08, 2026
Location and Projects
Address
1100 W Anderson Ct, Oak Creek, WI, 53154
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Grunau Company Architect
Grunau Company Inc, 1100 W Anderson Ct, Oak Creek, WI (Employees: Don Czajka, Emily Nicole Nelson, and Jeff Hintze) holds a Design Professional license and 13 other licenses according to the Milwaukee license board.
Their BuildZoom score of 110 ranks in the top 4% of 94,017 Wisconsin licensed contractors.
Their license was verified as active when we last checked. If you are thinking of hiring Grunau Company Inc, we recommend double-checking their license status with the license board and using our bidding system to get competitive quotes.
Grunau Company Inc Services
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Grunau Company Inc Contact Information
Phone Number: (414) 216-6900
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Address: 1100 W Anderson Ct, Oak Creek, WI 53154
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Grunau Company Inc Oak Creek
Quality
110
96th percentile
Pro tip:
We generally recommend hiring a contractor with a score higher than 95.
Grunau Company Inc has a BuildZoom score of 110, which places them above 96% of 94,017 contractors in Wisconsin.
Activity
|
84 projects
|
2025 |
|
139 projects
|
2024 |
|
79 projects
|
2023 |
Our building permit records indicate that Grunau Company Inc has worked on at least
302.0 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
|
18 projects
|
Commercial Renovations |
|
13 projects
|
Home Additions |
|
4 projects
|
New Constructions |
Analyzing permits over the last 4 years shows that Grunau Company Inc mostly works on
commercial renovation
and home addition
projects.
Pricing
|
109 projects
|
< $5k |
|
19 projects
|
$5k-$20k |
|
17 projects
|
$20k-$50k |
|
10 projects
|
$50k-$100k |
|
12 projects
|
$100k-$250k |
|
5 projects
|
$250k-$500k |
|
7 projects
|
$500k-$1mil |
|
5 projects
|
$1mil+ |
The typical size of their permits is approximately $5,000. 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.
% pr - new north building addition - 818 e mason - gas piping
Valuation:
$145,000,000
Permit #:
PLB-GP-23-00328
Status:
issued
Fee:
$228
Permit Type:
New construction/...
Building Type:
Commercial
Gas piping - 1311 n 6th st - everest college
Valuation:
$1,496,600
Permit #:
PLB-GP-23-00052
Status:
complete
Fee:
$162
Permit Type:
Alteration/repair
Building Type:
Commercial
Withdrawn see hvac-gen-23-01002
Valuation:
$557,600
Permit #:
HVAC-GEN-24-02507
Status:
withdrawn
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Take care of deficiencies on sprinkler system: addition head in hallway replace flow switch addition heads under (2) overhead garage doors
Valuation:
N/A
Permit #:
PBFS-25-00496
Status:
complete
Fee:
$137
Permit Type:
Commercial
Building Type:
Commercial
Rite-hite hangar - hvac
Valuation:
$740,000
Permit #:
HVAC-GEN-24-03031
Status:
triage
Fee:
$3,209
Permit Type:
N/A
Building Type:
N/A
%pr - 777 e. wisconsin ave. - baird 8th floor - interior plumbing
Valuation:
$107,000
Permit #:
PLB-22-02420
Status:
complete
Fee:
$1,438
Permit Type:
N/A
Building Type:
N/A
Deloitte - 34th floor - revised
Valuation:
$730,000
Permit #:
HVAC-GEN-24-00992
Status:
complete
Fee:
$2,371
Permit Type:
N/A
Building Type:
N/A
Us bank- (floor 33)
Valuation:
$565,000
Permit #:
HVAC-GEN-24-00619
Status:
issued
Fee:
$1,875
Permit Type:
N/A
Building Type:
N/A
Alt/rrp gas boiler - 742 w capitol dr -messmer high school
Valuation:
$349,160
Permit #:
PLB-GP-23-00230
Status:
issued
Fee:
$88
Permit Type:
Alteration/repair
Building Type:
Commercial
(3) chillers
Valuation:
$650,000
Permit #:
HVAC-CHLR-22-00006
Status:
complete
Fee:
$2,179
Permit Type:
N/A
Building Type:
Office building
Commercial replacement rooftop furnace & air conditioning
Valuation:
$150,000
Permit #:
HVAC-GEN-25-02691
Status:
issued
Fee:
$178
Permit Type:
N/A
Building Type:
N/A
New system for new building
Valuation:
$927,600
Permit #:
HVAC-GEN-23-03227
Status:
filed
Fee:
$367
Permit Type:
N/A
Building Type:
N/A
Duplicate- see hvac-gen-23-01937 and hvac-gen-23-02129
Valuation:
$1,000,000
Permit #:
HVAC-GEN-23-01818
Status:
withdrawn
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
No Description Available
Valuation:
$1,496,600
Permit #:
BLR-23-00085
Status:
complete
Fee:
$122
Permit Type:
N/A
Building Type:
Medical center
No Description Available
Valuation:
$1,496,600
Permit #:
BLR-23-00084
Status:
complete
Fee:
$122
Permit Type:
N/A
Building Type:
Medical center
No Description Available
Valuation:
$1,496,600
Permit #:
BLR-23-00083
Status:
complete
Fee:
$122
Permit Type:
N/A
Building Type:
Medical center
Furnish and install (1) backflow preventer to serve process washers. furnish and install (1) washer cold supply equipment connection. provide valved and capped cold supply to serve future washer
Valuation:
N/A
Permit #:
PP23-0121
Status:
final
Fee:
$60
Permit Type:
plumbing
Building Type:
N/A
Plumbing - gas piping
Valuation:
$1,000,000
Permit #:
PLB-GP-24-00144
Status:
complete
Fee:
$86
Permit Type:
New construction/...
Building Type:
Commercial
No Description Available
Valuation:
$45,000,000
Permit #:
BLR-24-00090
Status:
issued
Fee:
$312
Permit Type:
N/A
Building Type:
Commercial office
No Description Available
Valuation:
$45,000,000
Permit #:
BLR-24-00089
Status:
issued
Fee:
$926
Permit Type:
N/A
Building Type:
Commercial office
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Grunau Company Inc Reviews
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Verified License
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Grunau Company Inc License info
Verified License
| License # | 100513 |
| Status | Active |
| City | Milwaukee |
| Type | Design Professional |
| Business Type | Corporation |
- BuildZoom verified this license was active as of July 2026.
Verify this license's status for Grunau Company Inc at the City of Milwaukee License Search.
This is a sample of licensing data; click here to access a complete history.
License Not Verified
| License # | 5122 |
| Status | Active |
| City | Stevens Point |
| Business Type | Corporation |
- When BuildZoom last verified this license, it had an expiration date of April, 2025. Check the current license status of Grunau Company Inc with the City of Stevens Point
This is a sample of licensing data; click here to access a complete history.
License Not Verified
| License # | RWCL-22-00123 |
| Status | Active |
| City | Milwaukee |
| Type | Concrete Contractor |
| Business Type | Corporation |
- When BuildZoom last verified this license, it had an expiration date of December, 2023. Check the current license status of Grunau Company Inc with the City of Milwaukee License Search
This is a sample of licensing data; click here to access a complete history.
License Not Verified
| License # | RWCL-21-00110 |
| Status | Active |
| City | Milwaukee |
| Type | Concrete Contractor |
| Business Type | Corporation |
- When BuildZoom last verified this license, it had an expiration date of December, 2022. Check the current license status of Grunau Company Inc with the City of Milwaukee License Search
This is a sample of licensing data; click here to access a complete history.
License Not Verified
| License # | RWCL-19-00017 |
| Status | Active |
| City | Milwaukee |
| Type | Concrete Contractor |
| Business Type | Corporation |
- When BuildZoom last verified this license, it had an expiration date of February, 2020. Check the current license status of Grunau Company Inc with the City of Milwaukee License Search
This is a sample of licensing data; click here to access a complete history.
Verified License
| License # | 5122 |
| Status | Active |
| City | Milwaukee |
| Type | Hvac Contractor |
| Business Type | Corporation |
- BuildZoom verified this license was active as of June 2026.
Verify this license's status for Grunau Company 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 # | 230401 |
| Status | Active |
| City | Milwaukee |
| Type | Plumbing |
| Business Type | Corporation |
- BuildZoom verified this license was active as of June 2026.
Verify this license's status for Grunau Company 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 # | 864790 |
| Status | Active |
| City | Milwaukee |
| Type | Plumbing |
| Business Type | Corporation |
- BuildZoom verified this license was active as of July 2026.
Verify this license's status for Grunau Company Inc at the City of Milwaukee License Search.
This is a sample of licensing data; click here to access a complete history.
License Not Verified
| License # | 102-11 |
| Status | Active |
| State | Wisconsin |
| Type | Architectural Or Engineering Corp - Certificate Of Authorization |
| Business Type | Corporation |
- When BuildZoom last verified this license, it had an expiration date of June, 2017. Check the current license status of Grunau Company Inc with 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 # | S5122 |
| Status | Inactive |
| City | Milwaukee |
| Type | Electrical |
| Business Type | Corporation |
- According to the City of Milwaukee License Search, 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 Grunau Company 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 # | 637931 |
| Status | Inactive |
| City | Milwaukee |
| Type | Plumbing |
| Business Type | Corporation |
- According to the City of Milwaukee License Search, 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 Grunau Company 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 # | 2105 |
| Status | Inactive |
| City | Milwaukee |
| Type | Design Professional |
| Business Type | Corporation |
- According to the City of Milwaukee License Search, 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 Grunau Company 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 # | 1008973 |
| Status | Inactive |
| City | Milwaukee |
| Type | Automatic Fire Sprinkler Contractor |
| Business Type | Corporation |
- According to the City of Milwaukee License Search, 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 Grunau Company 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 # | 221591 |
| Status | Inactive |
| City | Milwaukee |
| Type | Plumbing |
| Business Type | Corporation |
- According to the City of Milwaukee License Search, 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 Grunau Company Inc at the City of Milwaukee License Search.
This is a sample of licensing data; click here to access a complete history.
110
BuildZoom Score
Insured
| Insurer | Zurich American Insurance Company |
699
Permits
- Building permit records show that Grunau Company Inc has worked on 699 permitted projects.
Grunau Company Inc Employees
DC
Don Czajka
EN
Emily Nicole Nelson
JH
Jeff Hintze
JO
Jonathan Olson
JJ
Joseph A Kratz Jr
JL
Josh Liegler
PM
Paul Gerald Magyar
PG
Paul Grunau
RG
Richard Goetter
SA
Sal Angelo
SA
Salvatore B Angelo