Updated: Jan 21, 2026
Location and Projects
Address
3836 PESTANA WAY, Livermore, CA, 94550
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C W I Construction Inc
C W I Construction Inc, 3836 Pestana Way, Livermore, CA (Employees: Catherine Delores Wynn and Mark Douglas Wynn) holds a General Building license according to the California license board.
Their BuildZoom score of 107 ranks in the top 6% of 336,931 California licensed contractors.
Their license was verified as active when we last checked. If you are thinking of hiring C W I Construction Inc, we recommend double-checking their license status with the license board and using our bidding system to get competitive quotes.
C W I Construction Inc Services
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C W I Construction Inc Contact Information
Phone Number: (925) 766-5521
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Address: 3836 PESTANA WAY, Livermore, CA 94550
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C W I Construction Inc Livermore
Quality
107
94th percentile
Pro tip:
We generally recommend hiring a contractor with a score higher than 95.
C W I Construction Inc has a BuildZoom score of 107, which places them above 94% of 336,931 contractors in California.
Activity
|
7 projects
|
2025 |
|
2 projects
|
2024 |
|
5 projects
|
2023 |
Our building permit records indicate that C W I Construction Inc has worked on at least
14.0 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
|
5 projects
|
Home Additions |
Analyzing permits over the last 4 years shows that C W I Construction Inc mostly works on
home addition
projects.
Pricing
|
2 projects
|
$5k-$20k |
|
4 projects
|
$20k-$50k |
|
1 project
|
$50k-$100k |
|
2 projects
|
$100k-$250k |
|
1 project
|
$250k-$500k |
The typical size of their permits is approximately $41,480. This graph shows the distribution of these job values.
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 C W I Construction Inc
This is a sample of this contractor's permits. Click here to access their complete permit history.
***(7/10/23-dd) remove washer dryer relocation from scope - no slab demolish required.*** residential - install attic ladder in hallway ceiling; relocate w/d to attached garage & cap utilities; recondition attic to install new fau & tankless water heater; install 5/8 inch plywood to top of ceiling joists; r/r attic insulation; install new lighting & switch in attic; saw cut & demolish... see more
Valuation:
$75,000
Permit #:
CB23-0127
Status:
final
Fee:
$2,532
Permit Type:
N/A
Building Type:
N/A
Rev1 (dm 10/14/2024) revision: sheets a7 & a8: adding recessed lights in master bedroom bedroom 2 bedroom 3 and dining room; addition receptacles in bedroom 3 bedroom 2 hallway and dining room; run dedicated circuit for bedroom 3; run gas line for new fireplace gas insert changing interior doors to include fr garage door install earthquake shut off valve bathroom remodel like for like... see more
Valuation:
$30,000
Permit #:
CB24-0008-REV1
Status:
final
Fee:
$1,656
Permit Type:
N/A
Building Type:
N/A
Convert 40sqft from garage into a new full bathroom( habitable space) remodel hall bathroom new layout from expired permit reference b20-0824 field rev bathroom #4 added in 3-car garage. man-door in garage slides toward front of property. door to bath#3 moved to hallway to bedroom #2 and bath#3 sink and toilet flips to opposite wall. wall between sink and water closet removed
Valuation:
$30,000
Permit #:
B25-0425
Status:
final
Fee:
$2,090
Permit Type:
N/A
Building Type:
N/A
*rev1 (dm 10/4/2023) revision: upgrade 100 amp meter to 200 amp. upgrade subpanel in garage. new meter box to be recessed siemens mc2442b1200efv ***(7/10/23-dd) remove washer dryer relocation from scope - no slab demolish required.*** residential - install attic ladder in hallway ceiling; relocate w/d to attached garage & cap utilities; recondition attic to install new fau & tankless ... see more
Valuation:
$10,000
Permit #:
CB23-0127-REV1
Status:
final
Fee:
$890
Permit Type:
N/A
Building Type:
N/A
Russo residence main house: convert (355sf) of 1st floor and
Valuation:
$200,000
Permit #:
B-BP25-0424
Status:
approved
Fee:
$3,026
Permit Type:
Remodel-addition
Building Type:
N/A
Bathroom remodel like for like. addition exhaust fan and (2) recessed high efficiency lights - 52 sq ft (bldg/mech/elec/plumbing)
Valuation:
$30,000
Permit #:
CB24-0008
Status:
final
Fee:
$1,680
Permit Type:
N/A
Building Type:
N/A
Construct an approx. 437sf single story addition to include one bedroom bathroom and prayer room
Valuation:
$150,000
Permit #:
B23-2941
Status:
final
Fee:
$11,438
Permit Type:
N/A
Building Type:
N/A
Remodel kitchen due water damage w/pem
Valuation:
$20,000
Permit #:
B25-018471
Status:
final
Fee:
$885
Permit Type:
N/A
Building Type:
N/A
Legalize basement conversion into adu 842 sq.ft. (1 bedroom 1 full bathroom) - replace two windows in basement - move main house furnace into attic
Valuation:
$105,375
Permit #:
B20-1127
Status:
expired
Fee:
$1,725
Permit Type:
N/A
Building Type:
N/A
122 sq. ft. 1-story addition to the side of an existing single-family home to create new entry & front porch. modify roof & remodel
Valuation:
$41,480
Permit #:
B22-3588
Status:
expired
Fee:
$1,009
Permit Type:
N/A
Building Type:
N/A
Addition at rear of home (351 sf) for master bedroom and 4th bedroom
Valuation:
$175,000
Permit #:
D210853
Status:
issued
Fee:
$1,590
Permit Type:
Add/alter single ...
Building Type:
N/A
Russo residence attached adu: convert (355sf) of 1st floor a
Valuation:
N/A
Permit #:
B-BP25-0426
Status:
approved
Fee:
N/A
Permit Type:
Attached adu
Building Type:
N/A
Convert existing rumpus/storage room into 4th bedroom and bathroom
Valuation:
$30,000
Permit #:
D220584
Status:
issued
Fee:
$799
Permit Type:
N/A
Building Type:
N/A
Convert 1/2 bathroom to full bathroom w electrical upgrades (no structural). convert 2nd floor bathroom to a bedroom by adding a fixed step and portable closet w/electrical upgrades. ******field rev 3/12/18 3/12/18 field revision: 2 step requirement to be a permanent bench to be installed. 10 min height 14"-16 depth ****
Valuation:
$14,600
Permit #:
B18-0578
Status:
final
Fee:
$773
Permit Type:
N/A
Building Type:
N/A
Kitchen remodel like for like
Valuation:
N/A
Permit #:
BIAL22-011793
Status:
final
Fee:
$1,850
Permit Type:
N/A
Building Type:
N/A
Run electrical from existing panel to existing 120 sf shed. installing lighting and (4) receptacles
Valuation:
$2,800
Permit #:
B21-0027
Status:
final
Fee:
$105
Permit Type:
N/A
Building Type:
N/A
Russo residence: addressing for attached adu
Valuation:
N/A
Permit #:
B-AC25-0029
Status:
approved
Fee:
$715
Permit Type:
Attached adu
Building Type:
N/A
Remove (e) roofing - keep (e) sheathing - install comparable. shingles -
Valuation:
$16,000
Permit #:
BRROOF-23-0119
Status:
final
Fee:
$456
Permit Type:
N/A
Building Type:
N/A
Master bathroom remodel - like for like
Valuation:
$30,000
Permit #:
B24-2041
Status:
final
Fee:
$400
Permit Type:
N/A
Building Type:
N/A
Remodel 2 bathrooms and guest room. adding skylight to dining room remove wall dining room partial height post and replacing with upframed header
Valuation:
$60,000
Permit #:
B17-3208
Status:
final
Fee:
$2,260
Permit Type:
N/A
Building Type:
N/A
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C W I Construction Inc License info
Verified License
| License # | 869676 |
| Status | Active |
| State | California |
| Type | General Building |
| Business Type | Corporation |
- BuildZoom verified this license was active as of January 2026.
Verify this license's status for C W I Construction Inc at the California Contractors State License Board.
This is a sample of licensing data; click here to access a complete history.
107
BuildZoom Score
Bonded
| Bonded Agent | American Contractors Indemnity Company |
| Bond Value | $15,000 |
Insured
| Workers Comp Provider | Wesco Insurance Company |
33
Permits
- Building permit records show that C W I Construction Inc has worked on 33 permitted projects.
C W I Construction Inc Employees
CW
Catherine Delores Wynn
Officer
MW
Mark Douglas Wynn
Sole Owner