Updated: May 13, 2026
Location and Projects
Address
150 Business Center Dr, Corona, CA, 92880
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United Partition Systems Construction
United Partition Systems Inc, 150 Business Center Dr, Corona, CA (Employees: Kaminski, Michael Ryan, Michael Kaminski, and Robert Kaminiski) holds a Construction Contractor, Construction Contractor license and 4 other licenses according to the Washington license board.
Their BuildZoom score of 106 ranks in the top 7% of 336,931 California licensed contractors.
Their license was verified as active when we last checked. If you are thinking of hiring United Partition Systems Inc, we recommend double-checking their license status with the license board and using our bidding system to get competitive quotes.
United Partition Systems Inc Services
Start a project today:
Custom Home Build
New Home Construction
Medium Multi-Family New Con...
Other Residential New Const...
Multi-Room Remodel
Kitchen Remodel
Bathroom Remodel
Basement Remodel
Medium Multi-Family Remodel...
Other Residential Remodel
Office Renovation
Restaurant Renovation
Retail Renovation
Other Commercial Renovation
Other Commercial New Constr...
Addition
United Partition Systems Inc Contact Information
Phone Number: (909) 942-1077
Address: 150 Business Center Dr, Corona, CA 92880
United Partition Systems Inc Corona
Quality
106
93rd percentile
Pro tip:
We generally recommend hiring a contractor with a score higher than 95.
United Partition Systems Inc has a BuildZoom score of 106, which places them above 93% of 336,931 contractors in California.
Activity
|
1 project
|
2025 |
|
3 projects
|
2024 |
|
2 projects
|
2023 |
Our building permit records indicate that United Partition 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 United Partition Systems Inc mostly works on
commercial renovation
projects.
Pricing
|
1 project
|
$20k-$50k |
|
2 projects
|
$100k-$250k |
|
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 United Partition Systems Inc
This is a sample of this contractor's permits. Click here to access their complete permit history.
Construct (n) modular enclosures within (e) building 169 sqft modular lunch room 1 336 sqft modular lab 2 528 sqft modualr shipping office 3 w interior 6'x24 closet electrical under separate permit as per approved plans
Valuation:
$220,422
Permit #:
BLDC-2022-0018
Status:
complete
Fee:
$2,553
Permit Type:
N/A
Building Type:
N/A
(e-plans) suite a bldg: 34 x 57 cleanroom 11/2/23 - revision to modular unit addition
Valuation:
$360,000
Permit #:
BLD-2022-07299
Status:
expired
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Electrical for (n) modular enclosures within (e) building includes: (14) outlets (4) switches (10) fixtures ref: bldc-2022-0018 as per approved plans
Valuation:
N/A
Permit #:
ELEC-2022-0019
Status:
complete
Fee:
$611
Permit Type:
N/A
Building Type:
N/A
Camston wrather: com-ti (592 sf) (2 story) modular office with stairs
Valuation:
$49,627
Permit #:
CBC2022-0120
Status:
final
Fee:
N/A
Permit Type:
Tenant improvement
Building Type:
N/A
Fabri-tech: install 20 x 44 modular cleanroom. tenant im
Valuation:
$120,000
Permit #:
B-BP23-0219
Status:
final
Fee:
$7,264
Permit Type:
Tenant improvement
Building Type:
N/A
Install two new modular walls (21 feet x 28 feet) at the southwest corner of the warehouse building to create a new 588 sf enclosure for a new office
Valuation:
$30,000
Permit #:
2007290027
Status:
issued
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Revision to closet in supply office ref: bldc-2022-0018 as per approved plans
Valuation:
N/A
Permit #:
MIS-2022-0685
Status:
complete
Fee:
$292
Permit Type:
N/A
Building Type:
N/A
(c1) bti2200094 20 x 25 modular office
Valuation:
N/A
Permit #:
FPCBP2200758
Status:
approved
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
20 x 25 modular office to occupied industrial building (tenant- american wire) (bti2200029)
Valuation:
N/A
Permit #:
BTI2200094
Status:
final
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
1 132 sf tenant improvement: modular enclosure to be assembled within existing structure for medical device manufacturing and assembly.(roll plans)
Valuation:
$170,000
Permit #:
COMB-05-22-54489
Status:
final
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
(e-plan) suite a mechanical only: 34 x 57 cleanroom frontier aerospace revision 11/2/23 layout change
Valuation:
$360,000
Permit #:
MEC-2023-00258
Status:
final
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
(e-plan) suite a electrical only: 34 x 57 cleanroom revision 11/2/23 layout change
Valuation:
$360,000
Permit #:
ELE-2023-00319
Status:
final
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
To building a pre-fabricated modular enclosure 2100sf for breakroom restrooms printer room within in the existing warehouse
Valuation:
$120,000
Permit #:
BP-2023-03060
Status:
expired
Fee:
N/A
Permit Type:
Other nonresident...
Building Type:
N/A
Create 3528 sf interior clean room in an existing building for semicoa work to include modular demountable parition walls electrical and mechanical. ref.: b05-01203
Valuation:
N/A
Permit #:
M06-00141
Status:
issued
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Electrical to include: 52 light fixtures 48 outlets and 8 switches inside clean room for semicoa. ref.: b05-01203 and e06-00462
Valuation:
N/A
Permit #:
E06-00463
Status:
issued
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Electrical to include: 2 sub panels to 200 amps and 3 transformers up to 10 kva/kw for semicoa. ref.: b05-01203 and e06-00463
Valuation:
N/A
Permit #:
E06-00462
Status:
issued
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Install new 16 x 20 modular office in existing warehouse
Valuation:
$20,000
Permit #:
PMT16-01385
Status:
final
Fee:
N/A
Permit Type:
Commercial altera...
Building Type:
N/A
Production crane enclosure/clean room
Valuation:
$40,000
Permit #:
B02-000-405
Status:
issued
Fee:
$1,143
Permit Type:
Industrial plnt
Building Type:
N/A
Install 30 x 15 = 450 sq ft modular unit w 3 offices in warehouse. valuation $20, 000
Valuation:
$20,000
Permit #:
2008-2127
Status:
final
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Drc2002-00644 - united partition systems: request to construct a 500 square foot metal storage building on a developed site at the swc of rochester and jersey at 8720 rochester avenue on 2.71 acres in medium impact/heavy industrial district (subarea 9) apn # 229-111-53
Valuation:
N/A
Permit #:
DRC2002-00644
Status:
withdrawn
Fee:
$296
Permit Type:
N/A
Building Type:
N/A
United Partition Systems Inc Reviews
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United Partition Systems Inc License info
Verified License
| License # | UNITEPS893DJ |
| Status | Active |
| State | Washington |
| Type | Construction Contractor, Construction Contractor |
| Business Type | Corporation |
- BuildZoom verified this license was active as of May 2026.
Verify this license's status for United Partition Systems Inc at the Washington State Department of Labor & Industries.
This is a sample of licensing data; click here to access a complete history.
Verified License
| License # | 0075364 |
| Status | Active |
| State | Nevada |
| Type | B General Building |
| Business Type | Corporation |
- BuildZoom verified this license was active as of January 2026.
Verify this license's status for United Partition Systems Inc at the Nevada State Contractors Board.
This is a sample of licensing data; click here to access a complete history.
License Not Verified
| License # | 2703000299 |
| Status | Active |
| State | Virginia |
| Type | Commercial Improvment Cic |
| Class | A |
| Business Type | Corporation |
- When BuildZoom last verified this license, it had an expiration date of June, 2015. Check the current license status of United Partition Systems Inc with the Virginia Department of Professional and Occupational Regulation
This is a sample of licensing data; click here to access a complete history.
License Not Verified
| License # | 75364 |
| Status | Active |
| State | Nevada |
| Type | B - General Building |
| Business Type | Corporation |
- When BuildZoom last verified this license, it had an expiration date of June, 2015. Check the current license status of United Partition Systems Inc with the Nevada State Contractors Board
This is a sample of licensing data; click here to access a complete history.
Inactive License
| License # | 2705147494 |
| Status | Inactive |
| State | Virginia |
| Type | Commercial Improvement (Cic) |
| Business Type | Corporation |
- According to the Virginia Department of Professional and Occupational Regulation, the status of this license was at one point cancelled. However, this information may have changed.
Check this license's status for United Partition Systems Inc at the Virginia Department of Professional and Occupational Regulation.
This is a sample of licensing data; click here to access a complete history.
106
BuildZoom Score
Insured
| Insurer | Houston Specialty Ins Co |
| Insured up to | $1,000,000 |
Bonded
| Bonded Agent | Suretec Insurance Company |
| Bond Value | $15,000 |
14
Permits
- Building permit records show that United Partition Systems Inc has worked on 14 permitted projects.
United Partition Systems Inc Employees
KR
Kaminski, Michael Ryan
President Qualified Individual
MK
Michael Kaminski
President
RK
Robert Kaminiski
Chief Financial Officer
SK
Sue Kaminski
Treasurer