Updated: Jul 04, 2026
Location and Projects
Address
8444 DAY ST, Sunland, CA, 91040
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S I UNITED CONSTRUCTION
S I UNITED CONSTRUCTION, 8444 Day St, Sunland, CA (Owned by: Seroj Isayan) holds a General Building license according to the California license board.
Their BuildZoom score of 94 ranks in the top 24% of 336,931 California licensed contractors.
Their license was verified as active when we last checked. If you are thinking of hiring S I UNITED CONSTRUCTION, we recommend double-checking their license status with the license board and using our bidding system to get competitive quotes.
S I UNITED CONSTRUCTION Services
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S I UNITED CONSTRUCTION Contact Information
Phone Number: (818) 383-5252
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Address: 8444 DAY ST, Sunland, CA 91040
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Building Permits by S I UNITED CONSTRUCTION
This is a sample of this contractor's permits. Click here to access their complete permit history.
Re-roof with class a or b material weighing less than 6 pounds per sq. ft. over existing solid sheathing 25 squares. for residential roof replacement > 50% of the total roof area apply cool roof product labeled and certified by cool roofing rating council (crrc). cool roof may be required for non-residential buildings per title 24 part 6 section 141.0(b)2b. kitchen remodel for residen... see more
Valuation:
$9,000
Permit #:
18016-20000-24334
Status:
final
Fee:
N/A
Permit Type:
1 or 2 family dwe...
Building Type:
N/A
Bathroom (1) remodel for residential buildings (no structural changes). window (11) and door (8) change-out (same size & type) for residential buildings. dual glazing labeled and certified by national fenestration rating council (nfrc) is required for doors and windows replaced in all residential buildings three stories or less per section 150.2(b)1b of title 24
Valuation:
$7,000
Permit #:
19016-20000-03198
Status:
final
Fee:
N/A
Permit Type:
1 or 2 family dwe...
Building Type:
N/A
Installing new hvac (package unit). also run electrical line for the unit
Valuation:
N/A
Permit #:
21044-90000-25275
Status:
final
Fee:
N/A
Permit Type:
1 or 2 family dwe...
Building Type:
N/A
Installing pipe and wiring for new hvac unit
Valuation:
N/A
Permit #:
21141-90000-15026
Status:
final
Fee:
N/A
Permit Type:
1 or 2 family dwe...
Building Type:
N/A
Legalization for kitchen remodel (same layout no structural change) @ approx. 126 s/f
Valuation:
N/A
Permit #:
BLD2018-01146
Status:
final
Fee:
N/A
Permit Type:
General
Building Type:
N/A
Hvac
10146 N Mcvine Ave, Los Angeles, CA, 91040
2019-11-07
Remove and replace gas-electric split system and duct work
Valuation:
N/A
Permit #:
19044-20000-01261
Status:
final
Fee:
N/A
Permit Type:
1 or 2 family dwe...
Building Type:
N/A
Electrical
10146 N Mcvine Ave, Los Angeles, CA, 91040
2019-11-07
Install (n) 125a sub-panel. lights outlets switches and rewire
Valuation:
N/A
Permit #:
19041-20000-04079
Status:
final
Fee:
N/A
Permit Type:
1 or 2 family dwe...
Building Type:
N/A
Install (n) tankless water heater and repipe
Valuation:
N/A
Permit #:
19042-20000-02632
Status:
final
Fee:
N/A
Permit Type:
1 or 2 family dwe...
Building Type:
N/A
Electrical for kitchen remodel
Valuation:
N/A
Permit #:
ELE2018-01231
Status:
final
Fee:
N/A
Permit Type:
Electrical permit
Building Type:
N/A
Electrical
10146 N Mcvine Ave, Los Angeles, CA, 91040
2019-11-07
200 amp service upgrade
Valuation:
N/A
Permit #:
18041-20000-28653
Status:
final
Fee:
N/A
Permit Type:
1 or 2 family dwe...
Building Type:
N/A
Replacing air conditioning
Valuation:
N/A
Permit #:
MEC2018-00927
Status:
final
Fee:
N/A
Permit Type:
Mechanical permit
Building Type:
N/A
Replace disconnect switch for air conditioning unit
Valuation:
N/A
Permit #:
18041-20000-45032
Status:
final
Fee:
N/A
Permit Type:
1 or 2 family dwe...
Building Type:
N/A
Replace gas electric package unit
Valuation:
N/A
Permit #:
18044-20000-14406
Status:
final
Fee:
N/A
Permit Type:
1 or 2 family dwe...
Building Type:
N/A
Re-roof with class a or b material weighing less than 6 pounds per sq. ft. over new solid sheathing. 35 squares. for residential roof replacement > 50% of the total roof area apply cool roof product labeled and certified by cool roofing rating council (crrc). cool roof may be required for non-residential buildings per title 24 part 6 section 149(b)
Valuation:
$6,000
Permit #:
17016-20000-02685
Status:
final
Fee:
N/A
Permit Type:
Apartment
Building Type:
N/A
Supplemental permit to replace earthquake valves
Valuation:
N/A
Permit #:
16042-20001-11581
Status:
final
Fee:
N/A
Permit Type:
Apartment
Building Type:
N/A
Supplemental permit to install earthquake valve
Valuation:
N/A
Permit #:
16042-20001-11323
Status:
final
Fee:
N/A
Permit Type:
Apartment
Building Type:
N/A
Use of land for used automobile display sales. display area measures 17 x 18 display for 2 vehicles
Valuation:
$6,000
Permit #:
13020-20000-01706
Status:
issued
Fee:
N/A
Permit Type:
Commercial
Building Type:
N/A
Change out (e) package unit - no duct work
Valuation:
N/A
Permit #:
15044-20000-10142
Status:
final
Fee:
N/A
Permit Type:
1 or 2 family dwe...
Building Type:
N/A
Change out (e) package unit - no duct work
Valuation:
N/A
Permit #:
15044-20000-10144
Status:
final
Fee:
N/A
Permit Type:
1 or 2 family dwe...
Building Type:
N/A
(20) gfi's smoke detectors and (2) lights off of existing circuits in garage
Valuation:
N/A
Permit #:
16041-20000-19512
Status:
final
Fee:
N/A
Permit Type:
Apartment
Building Type:
N/A
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S I UNITED CONSTRUCTION License info
Verified License
| License # | 963300 |
| Status | Active |
| State | California |
| Type | General Building |
| Business Type | Sole Ownership |
- BuildZoom verified this license was active as of July 2026.
Verify this license's status for S I UNITED CONSTRUCTION at the California Contractors State License Board.
This is a sample of licensing data; click here to access a complete history.
94
BuildZoom Score
Bonded
| Bonded Agent | Suretec Indemnity Company |
| Bond Value | $15,000 |
23
Permits
- Building permit records show that S I UNITED CONSTRUCTION has worked on 23 permitted projects.
S I UNITED CONSTRUCTION Employees
SI
Seroj Isayan
Sole Owner
SI
Seroj Isayan
Owner