Updated: May 15, 2026
Location and Projects
Address
P O BOX 591, Livermore, CA, 94550
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Ising Construction Company HVAC/Mechanical Contractor
Ising Construction Company, Livermore, Po Box 591, Livermore, CA (Employees: Christian Eric Ising, Donald James Pederson, and George Earl Ising) holds a Water Conditioning license and 4 other licenses according to the California license board.
Their BuildZoom score of 97 ranks in the top 18% of 336,931 California licensed contractors.
Their license was verified as active when we last checked. If you are thinking of hiring Ising Construction Company, we recommend double-checking their license status with the license board and using our bidding system to get competitive quotes.
Ising Construction Company Contact Information
Phone Number: (925) 441-3717
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Address: P O BOX 591, Livermore, CA 94550
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Ising Construction Company Livermore
Quality
97
82nd percentile
Pro tip:
We generally recommend hiring a contractor with a score higher than 95.
Ising Construction Company has a BuildZoom score of 97, which places them above 82% of 336,931 contractors in California.
Activity
|
1 project
|
2025 |
|
1 project
|
2023 |
Our building permit records indicate that Ising Construction Company has worked on at least
2.0 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
|
< $5k |
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 Ising Construction Company
This is a sample of this contractor's permits. Click here to access their complete permit history.
Like to like panel change - 100amp
Valuation:
$3,000
Permit #:
2025-01719
Status:
issued
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
To clarify an existing address of 5028 mines rd livermore ca 94550 for assessor's parcel number 099a240000608
Valuation:
N/A
Permit #:
BLA2023-00146
Status:
approved
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Install portable water exchange system
Valuation:
N/A
Permit #:
2018-00000107
Status:
issued
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Install portable water exchange system
Valuation:
N/A
Permit #:
2018-00000106
Status:
issued
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Install portable exchange water softener
Valuation:
N/A
Permit #:
2018-00000024
Status:
issued
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
New roof mount solar photovoltaic system on home. 16 modules 240 watts 16 micro-inverters 240 watts. permit is good for two inspections. additional inspections are $136.28 each. final inspection required
Valuation:
$2,500
Permit #:
14000042
Status:
complete
Fee:
$346
Permit Type:
N/A
Building Type:
N/A
Original remodel permit is revised to: demolish down to subfloor and construct a new r-3 single family dwelling by adding 1030 sf. to existing 1196 sq ft residence. house to remain 3 bedrooms. convert 531 sf. of living space to garage. new covered front and rear porch 252 sf. 9/20/10 revision to enlarge the front deck on the east side of the house by 127 sf. extend roof line over fron... see more
Valuation:
N/A
Permit #:
09002164
Status:
complete
Fee:
$2,236
Permit Type:
N/A
Building Type:
N/A
Install water treatment system
Valuation:
$4,283
Permit #:
B15-1146
Status:
final
Fee:
$37
Permit Type:
N/A
Building Type:
N/A
Water softner install water treatment system
Valuation:
$4,283
Permit #:
B15-1138
Status:
Approved
Fee:
$84
Permit Type:
N/A
Building Type:
N/A
Water treatment installation
Valuation:
$3,686
Permit #:
B14-2523
Status:
final
Fee:
$37
Permit Type:
N/A
Building Type:
N/A
Install water treatment system
Valuation:
$4,096
Permit #:
B14-2027
Status:
final
Fee:
$37
Permit Type:
N/A
Building Type:
N/A
Install water treatment system
Valuation:
$442
Permit #:
B14-1876
Status:
final
Fee:
$37
Permit Type:
N/A
Building Type:
N/A
Water treatment system installation
Valuation:
$175
Permit #:
B14-1167
Status:
issued
Fee:
$37
Permit Type:
N/A
Building Type:
N/A
Water treatment system installation
Valuation:
$2,625
Permit #:
B13-2121
Status:
final
Fee:
$37
Permit Type:
N/A
Building Type:
N/A
Permit value$4.28k water softner install water treatment system
Valuation:
N/A
Permit #:
B15-1138
Status:
APPROVED
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Permit value$4.28k water softner install water treatment system
Valuation:
N/A
Permit #:
B15-1146
Status:
ISSUED
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Water treatment installation
Valuation:
$4,537
Permit #:
B13-3046
Status:
final
Fee:
$37
Permit Type:
N/A
Building Type:
N/A
Water treatment installation
Valuation:
$3,198
Permit #:
B13-3045
Status:
final
Fee:
$37
Permit Type:
N/A
Building Type:
N/A
Water treatment installation
Valuation:
$4,537
Permit #:
B13-2730
Status:
final
Fee:
$36
Permit Type:
N/A
Building Type:
N/A
Water treatment installation
Valuation:
$183
Permit #:
B13-2731
Status:
final
Fee:
$36
Permit Type:
N/A
Building Type:
N/A
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Ising Construction Company Reviews
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Verified License
BuildZoom confirmed this contractor's license
Ising Construction Company License info
Verified License
| License # | 668790 |
| Status | Active |
| State | California |
| Type | Water Conditioning |
| Business Type | Sole Ownership |
- BuildZoom verified this license was active as of January 2026.
Verify this license's status for Ising Construction Company at the California Contractors State License Board.
This is a sample of licensing data; click here to access a complete history.
Verified License
| License # | 398975 |
| Status | Active |
| State | California |
| Type | Water Conditioning |
| Business Type | Sole Ownership |
- BuildZoom verified this license was active as of January 2026.
Verify this license's status for Ising Construction Company at the California Contractors State License Board.
This is a sample of licensing data; click here to access a complete history.
Inactive License
| License # | 414573 |
| Status | Inactive |
| State | California |
| Type | General Building |
| Business Type | Sole Ownership |
- According to the California Contractors State License Board, 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 Ising Construction Company at the California Contractors State License Board.
This is a sample of licensing data; click here to access a complete history.
Inactive License
| License # | 482730 |
| Status | Inactive |
| State | California |
| Type | General Building |
| Business Type | Sole Ownership |
- According to the California Contractors State License Board, 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 Ising Construction Company at the California Contractors State License Board.
This is a sample of licensing data; click here to access a complete history.
Inactive License
| License # | 687799 |
| Status | Inactive |
| State | California |
| Type | General Building |
| Business Type | Sole Ownership |
- According to the California Contractors State License Board, 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 Ising Construction Company at the California Contractors State License Board.
This is a sample of licensing data; click here to access a complete history.
97
BuildZoom Score
Bonded
| Bonded Agent | American Contractors Indemnity Company |
| Bond Value | $15,000 |
Insured
| Workers Comp Provider | State Compensation Insurance Fund |
233
Permits
- Building permit records show that Ising Construction Company has worked on 233 permitted projects.
Ising Construction Company Employees
CI
Christian Eric Ising
Rmo/Ceo/Pres
DP
Donald James Pederson
Qualify Partner
GI
George Earl Ising
Rmo/Ceo/Pres
GI
Gregory Charles Ising
Sole Owner
PI
Patricia Kistner Ising
Officer