Updated: Feb 13, 2026
Location and Projects
Address
3431 Cantelow Rd, Vacaville, CA, 95688
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Westec Builder Photos
Westec Builder Construction
Westec Builder, 3431 Cantelow Rd, Vacaville, CA (Owned by: Robert Edward Stefanowicz) holds a General Building license according to the California license board.
Their BuildZoom score of 98 ranks in the top 16% of 336,931 California licensed contractors.
Their license was verified as active when we last checked. If you are thinking of hiring Westec Builder, we recommend double-checking their license status with the license board and using our bidding system to get competitive quotes.
Westec Builder Services
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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
Roofing
Hardwood Flooring
Carpets
Laminate Flooring
Other Flooring
Framing
Wood Fences
Backsplash and Countertops
Stonework
Tile Flooring
Other Stone and Tile
Drywall
Interior Plaster
Brick and Blockwork
Other Masonry
Foundations
Other Concrete
Demolition
Paving, Driveways, and Side...
Excavation and Grading
Other Site Work
Westec Builder Contact Information
Phone Number: (707) 812-6313
Address: 3431 Cantelow Rd, Vacaville, CA 95688
This is a sample of this contractor's permits. Click here to access their complete permit history.
Construct new 2 story single family dwelling living space 2780 sqft porch 135 sqft garage 916 sqft-vacant parcel 2nd unit#12060074
Valuation:
$320,000
Permit #:
12060073
Status:
Closed
Fee:
$7,093
Permit Type:
Single family dwe...
Building Type:
N/A
Plumbing for veterinary building. renovation to a conservation education center-1 toilet, 3 lav, 1 sink, 1 floor drain, 1 water alter, 1 water heater, 1 waste/vent alter
Valuation:
N/A
Permit #:
P1300498
Status:
final
Fee:
$307
Permit Type:
N/A
Building Type:
N/A
New 3150 sq ft sfd with 600 sq ft attached garage rebuild from fire address changed from 5940 romany rd entrance fronting on mathieu av. given 6205 mathieu av.
Valuation:
$462,712
Permit #:
RB9702325
Status:
Final
Fee:
$8,860
Permit Type:
N/A
Building Type:
N/A
Renovate former veterinary building to a conservation and education center
Valuation:
$200,000
Permit #:
B1204241
Status:
issued
Fee:
$6,156
Permit Type:
N/A
Building Type:
N/A
Electrical: 1 60k btu air conditioning 1 65k btu f.a.u 1 cond/comp 1 condensate drain 2 low pressure zones, 1 flue, 1 med gas test
Valuation:
N/A
Permit #:
M1300565
Status:
final
Fee:
$442
Permit Type:
N/A
Building Type:
N/A
New s.f.d. - fire storm area. original house 1, 168 sq. ft 2 bedrooms. new house 3816 sq. ft 4 bedroom plus attached garage 400 sq. ft
Valuation:
$495,000
Permit #:
RB9602109
Status:
Final
Fee:
$11,201
Permit Type:
N/A
Building Type:
N/A
New construction new 3150 sq ft single family dwelling with 600 sq ft attached garage rebuild from fire address changed from 5940 romany rd entrance fronting on mathieu av. given 6205 mathieu av
Valuation:
N/A
Permit #:
RB9702325
Status:
FINAL
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
New three-story sfd in hill fire area; 3576 s.f. and 400 s.f. attached garage.
Valuation:
$501,000
Permit #:
RB9705163
Status:
Final
Fee:
$10,241
Permit Type:
N/A
Building Type:
N/A
New sfd in hill fire area (2620 s.f. and 400 s.f. attached garage) 2 story
Valuation:
$325,000
Permit #:
RB9601292
Status:
Final
Fee:
$5,205
Permit Type:
N/A
Building Type:
N/A
New sfd; 3 story 2710 s.f. and 440 s.f. attached garage. townhouse unit.
Valuation:
$393,000
Permit #:
RB9703897
Status:
Final
Fee:
$7,193
Permit Type:
N/A
Building Type:
N/A
New sfd 2800 sq ft garage 600 sq ft rebuild from fire area
Valuation:
$414,696
Permit #:
RB9504756
Status:
Final
Fee:
$8,249
Permit Type:
N/A
Building Type:
N/A
Driveway bridge encr for a three-story sfd in hill fire area w/ 400 s.f. attached garage. recorded 12-21-98
Valuation:
$0
Permit #:
ENWD98129
Status:
Closed
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
New sfd 3 levels, 3757 s.f. and 420 s.f. garage.
Valuation:
$535,000
Permit #:
RB9703176
Status:
Final
Fee:
$10,616
Permit Type:
N/A
Building Type:
N/A
Permit value$415kmessage contractor new single family dwelling 2800 sq ft garage 600 sq ft rebuild from fire area
Valuation:
N/A
Permit #:
RB9504756
Status:
FINAL
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
New single family dwelling 3867 sf with attached garage 480 sf
Valuation:
$650,000
Permit #:
RB0204269
Status:
final
Fee:
$17,590
Permit Type:
N/A
Building Type:
N/A
New sfd 2670 sqft of conditioned space.
Valuation:
$250,000
Permit #:
RB9600506
Status:
Final
Fee:
$4,389
Permit Type:
N/A
Building Type:
N/A
Permit value$650kmessage contractor new single family dwelling 3867 sf with attached garage 480 sf
Valuation:
N/A
Permit #:
RB0204269
Status:
FINAL
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
New construction construct 25 sq ft of s/w 125 sq ft of d/w 50 sq ft of gutter
Valuation:
N/A
Permit #:
CGS960124
Status:
PERMIT ISSUED
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
New construction driveway bridge encr for a three-story single family dwelling in hill fire area w 400 s.f. attached garage. recorded 12-21-98
Valuation:
N/A
Permit #:
ENWD98129
Status:
CLOSED
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Rebuild single family dwelling in fire area
Valuation:
$374,780
Permit #:
RB9502696
Status:
Final
Fee:
$5,488
Permit Type:
N/A
Building Type:
N/A
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Verified License
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Westec Builder License info
Verified License
| License # | 516004 |
| Status | Active |
| State | California |
| Type | General Building |
| Business Type | Sole Ownership |
- BuildZoom verified this license was active as of February 2026.
Verify this license's status for Westec Builder at the California Contractors State License Board.
This is a sample of licensing data; click here to access a complete history.
98
BuildZoom Score
Bonded
| Bonded Agent | Wesco Insurance Company |
| Bond Value | $15,000 |
Insured
| Workers Comp Provider | State Compensation Insurance Fund |
24
Permits
- Building permit records show that Westec Builder has worked on 24 permitted projects.
Westec Builder Employees
RS
Robert Edward Stefanowicz
Owner