Updated: Jun 17, 2026
Location and Projects
Address
9963 Banyan St, Rancho Cucamonga, CA, 91737
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Zelnis Construction
Zelnis Construction, 9963 Banyan St, Rancho Cucamonga, CA (Owned by: William John Zelnis) holds a General Building license according to the California license board.
Their BuildZoom score of 99 ranks in the top 15% of 336,931 California licensed contractors.
Their license was verified as active when we last checked. If you are thinking of hiring Zelnis Construction, we recommend double-checking their license status with the license board and using our bidding system to get competitive quotes.
Zelnis Construction Services
Start a project today:
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
Wood Fences
Drywall
Interior Plaster
Gutters and Flashing
Drafting
Industrial Renovation
Hotel Renovation
Warehouse Renovation
Small Multi-Family Remodel ...
Whole Home Remodel
Addition
Vertical Addition
Horizontal Addition
Vertical and Horizontal Add...
Attic Remodel
Single Room Remodel
Cosmetic Remodel
Large Multi-Family Remodel ...
Healthcare Facility Renovation
Zelnis Construction Contact Information
Phone Number: (909) 948-0308
Address: 9963 Banyan St, Rancho Cucamonga, CA 91737
Zelnis Construction Rancho Cucamonga
Quality
99
85th percentile
Pro tip:
We generally recommend hiring a contractor with a score higher than 95.
Zelnis Construction has a BuildZoom score of 99, which places them above 85% of 336,931 contractors in California.
Activity
|
3 projects
|
2025 |
Our building permit records indicate that Zelnis Construction has worked on at least
3.0 projects over the past year.
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-$20k |
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.
Partial removal of an internal non-structural wall to enlarge a room. which includes adding new panic hardware and emergency exit signs/lighted sacred heart
Valuation:
N/A
Permit #:
PMT2025-04463
Status:
complete
Fee:
$857
Permit Type:
N/A
Building Type:
N/A
New attached adu (805 sf) to (e) residence. (e) master bedroom (175 sf) to be part of new adu. separate utilities
Valuation:
N/A
Permit #:
PMT2025-04277
Status:
issued
Fee:
$12,611
Permit Type:
N/A
Building Type:
N/A
Replace existing hood(type1) canopy with new ul canopy
Valuation:
$6,858
Permit #:
FD25-0058
Status:
applied
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Replace existing hood(type1) canopy with new ul canopy
Valuation:
$6,858
Permit #:
FD25-0057
Status:
applied
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Replace existing hood(type1) canopy with new ul canopy
Valuation:
$6,858
Permit #:
FD25-0056
Status:
applied
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
77 linear ft block wall 6 high on east pl per city standard
Valuation:
N/A
Permit #:
PMT2022-00033
Status:
final
Fee:
$514
Permit Type:
N/A
Building Type:
N/A
Tenant improvement for new coffee area at 190 s/f (fuller seminary)
Valuation:
N/A
Permit #:
BLD2017-01620
Status:
final
Fee:
N/A
Permit Type:
General
Building Type:
N/A
Plumbing for coffee area tenant improvement
Valuation:
N/A
Permit #:
PLM2018-00092
Status:
final
Fee:
N/A
Permit Type:
plumbing permit
Building Type:
N/A
Electrical for coffee area tenant improvement
Valuation:
N/A
Permit #:
ELE2018-00088
Status:
final
Fee:
N/A
Permit Type:
Electrical permit
Building Type:
N/A
Block wall 91.5 l. ft city standard west on the property line
Valuation:
N/A
Permit #:
PMT2022-01179
Status:
final
Fee:
$514
Permit Type:
N/A
Building Type:
N/A
(b) permit to construct a 408sf attached aluminum covered - patio cover with a footing
Valuation:
N/A
Permit #:
BLD20-007108
Status:
final
Fee:
$249
Permit Type:
S-fam residential
Building Type:
N/A
Home occupation permit drc2004-00579 - zelnis tutoring - a request for a home office related to offsite tutoring services
Valuation:
N/A
Permit #:
DRC2004-00579
Status:
approved
Fee:
$53
Permit Type:
N/A
Building Type:
N/A
Building permit
Removal of retail shelving; addition of new counter (fuller cafe/bookstore) at 7, 600 s/f
Valuation:
N/A
Permit #:
BLD2018-00695
Status:
applied
Fee:
N/A
Permit Type:
General
Building Type:
N/A
Zelnis Construction Reviews
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Verified License
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Zelnis Construction License info
Verified License
| License # | 918331 |
| Status | Active |
| State | California |
| Type | General Building |
| Business Type | Sole Ownership |
- BuildZoom verified this license was active as of June 2026.
Verify this license's status for Zelnis Construction at the California Contractors State License Board.
This is a sample of licensing data; click here to access a complete history.
99
BuildZoom Score
Bonded
| Bonded Agent | Suretec Indemnity Company |
| Bond Value | $15,000 |
8
Permits
- Building permit records show that Zelnis Construction has worked on 8 permitted projects.
Zelnis Construction Employees
WZ
William John Zelnis
Owner