Updated: May 11, 2026
Location and Projects
Address
975 FOSTER RD, Napa, CA, 94558
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Superior Builders Construction
Superior Builders, 975 Foster Rd, Napa, CA (Employees: Christopher Alan Karvoski, John Jason Uhl, and Lisa Marie Byerley) holds a General Building license and 5 other licenses according to the California license board.
Their BuildZoom score of 105 ranks in the top 8% of 336,931 California licensed contractors.
Their license was verified as active when we last checked. If you are thinking of hiring Superior Builders, we recommend double-checking their license status with the license board and using our project planner to get competitive quotes.
Superior Builders Services
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Superior Builders Contact Information
Phone Number: (916) 638-7300
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Address: 975 FOSTER RD, Napa, CA 94558
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Superior Builders Napa
Quality
105
92nd percentile
Pro tip:
We generally recommend hiring a contractor with a score higher than 95.
Superior Builders has a BuildZoom score of 105, which places them above 92% of 336,931 contractors in California.
Activity
|
6 projects
|
2025 |
|
3 projects
|
2024 |
|
2 projects
|
2023 |
Our building permit records indicate that Superior Builders has worked on at least
11.0 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
|
4 projects
|
Multi-room remodels |
Analyzing permits over the last 4 years shows that Superior Builders mostly works on
multi-room remodel
projects.
Pricing
|
1 project
|
< $5k |
|
3 projects
|
$5k-$20k |
|
3 projects
|
$20k-$50k |
|
3 projects
|
$50k-$100k |
The typical size of their permits is approximately $30,000. 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.
Superior Builders Reviews
5 out of 5 stars, based on
1
review
-
By Julia H.September 20, 2023Build an ADU$200,000
This is a sample of this contractor's permits. Click here to access their complete permit history.
Re-roof main dwelling tear off existing roofing materials repair dry rot and install engineered trusses & comparable roofing
Valuation:
$30,000
Permit #:
BR25-00083-ALT
Status:
expired
Fee:
$745
Permit Type:
N/A
Building Type:
N/A
Code violation: main dwelling:addition- • remodel work in (e) kitchen and (e) bath.(complete remodel0 • garage conversion to install (n) full bathroom and laundry room (new habitable space) • replace (e) windows and/or doors with (n) windows and/or doors where indicated. (french doors in kitchen garage) • install new extension of (e) concrete patio • install new extension of (e) porc... see more
Valuation:
$65,000
Permit #:
BR23-02075-ADD
Status:
final
Fee:
$13,482
Permit Type:
N/A
Building Type:
N/A
Code violation: main dwelling: • remodel work in (e) kitchen and (e) bath.(complete remodel0 • garage conversion to install (n) full bathroom and laundry room (new habitable space) • replace (e) windows and/or doors with (n) windows and/or doors where indicated. (french doors in kitchen garage) • install new extension of (e) concrete patio • install new extension of (e) porch cover -n... see more
Valuation:
$65,000
Permit #:
S23-01456-RES
Status:
filed
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
***potential floodplain restrictions*** re-roof main dwelling tear off existing roofing materials repair dry rot and install engineered trusses & comparable roofing (originally started as br24-01620-rrf however too much dry rot was found and that permit will be cancelled and money should be transferred to new permit once created. note by c. beye)
Valuation:
$30,000
Permit #:
S24-01631-RES
Status:
filed
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Demolish garage; building new 484 sq ft garage; new 100a subpanel
Valuation:
$38,500
Permit #:
B2504-0066
Status:
issued
Fee:
$2,340
Permit Type:
N/A
Building Type:
N/A
Pending code violation- ***potential floodplain restrictions*** re-roof & replace all dry rot as needed. tearoff replace any dry rot sheathing with metal roof
Valuation:
$15,000
Permit #:
S24-01341-RES
Status:
filed
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Kitch& bth remodel reroof 20sq crrc0676-0043a
Valuation:
N/A
Permit #:
B2501-0102
Status:
issued
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Code violation: pergola structure power outlet to pergola 200 amp main panel 100 amp sub main-location indicated on site map and storage container- to be removed from property (violation fee paid under br23-01583-new)
Valuation:
$1,000
Permit #:
BR23-02078-NEW
Status:
final
Fee:
$963
Permit Type:
N/A
Building Type:
N/A
Convert silder to windw kitch & bath(s) remodel
Valuation:
$60,000
Permit #:
B2408-0076
Status:
final
Fee:
$599
Permit Type:
N/A
Building Type:
N/A
Residence bathroom remodel
Valuation:
$30,000
Permit #:
B2504-0082
Status:
issued
Fee:
$614
Permit Type:
N/A
Building Type:
N/A
Re-roof main dwelling tear off existing roofing materials repair dry rot and install metal roofing
Valuation:
$15,000
Permit #:
BR24-01620-RRF
Status:
expired
Fee:
$132
Permit Type:
N/A
Building Type:
N/A
Re-roof detached garage -tear off existing roofing materials and install class a comparable shingles
Valuation:
$8,000
Permit #:
BR24-01414-RRF
Status:
final
Fee:
$483
Permit Type:
N/A
Building Type:
N/A
Code violation: detached garage (rear of property): (n) windows to right wall of structure and electrical wiring and lighting; (n) french doors
Valuation:
$15,000
Permit #:
BR23-02077-ALT
Status:
final
Fee:
$2,811
Permit Type:
N/A
Building Type:
N/A
**expedited** legalize existing concrete patio (9 832 sf) & retaining wall (760 sf)
Valuation:
N/A
Permit #:
BLD22-4506
Status:
plancheck
Fee:
$2,183
Permit Type:
N/A
Building Type:
N/A
Remodel guest and masterbath
Valuation:
N/A
Permit #:
BDR2405-003
Status:
issued
Fee:
$911
Permit Type:
Remodel
Building Type:
N/A
Reroof main dwelling: 30 yr comparable shingles
Valuation:
$10,000
Permit #:
BR23-01598-RRF
Status:
final
Fee:
$532
Permit Type:
N/A
Building Type:
N/A
Main dwelling alteration: new rear covered deck and deck extension (+ 1976sf) new covered entry porch (+ 240 sf). revision #1: change in beam size on rear porch
Valuation:
$65,000
Permit #:
BR22-01451-ALT
Status:
final
Fee:
$5,024
Permit Type:
N/A
Building Type:
N/A
Bathroom remodels covering master bathroom (204 sq. ft.) and hall bathroom (50 sq. ft.) - 254 total. remove non-hearing partition in master bathroom and frame new closet. additional plan check may be required if partition supoports roof or ceiling loads
Valuation:
N/A
Permit #:
BLD2004-01723
Status:
FINALED
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Wui fire zone 2 - must comply with all fire zone restrictions. deck repair: remove existing surface remove & replace waterproof membrane. install new class a trex decking
Valuation:
$22,000
Permit #:
B2009-00458
Status:
Closed Complete
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Remove toilet lav & flooring and install (n) low flow toilet lav & tile floor in upstairs bathroom
Valuation:
$11,000
Permit #:
B2015-01688
Status:
Closed Complete
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Similar Contractors See more
184
BZ Score
$60K
Avg Project
-
Projects
187
BZ Score
$30K
Avg Project
-
Projects
188
BZ Score
$30K
Avg Project
-
Projects
Recent Buildzoom Projects
Verified License
BuildZoom confirmed this contractor's license
Superior Builders License info
Verified License
| License # | 1148965 |
| Status | Active |
| State | California |
| Type | General Building |
| Date Issued | 01-13-2026 |
| Business Type | Partnership |
- BuildZoom verified this license was active as of January 2026.
Verify this license's status for Superior Builders at the California Contractors State License Board.
This is a sample of licensing data; click here to access a complete history.
Inactive License
| License # | 1038434 |
| Status | Inactive |
| State | California |
| Type | General Building |
| Business Type | Partnership |
- 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 Superior Builders at the California Contractors State License Board.
This is a sample of licensing data; click here to access a complete history.
Inactive License
| License # | 823842 |
| Status | Inactive |
| State | California |
| Type | General Building, Siding And Decking, Concrete, Fencing |
| Business Type | Partnership |
- 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 Superior Builders at the California Contractors State License Board.
This is a sample of licensing data; click here to access a complete history.
Inactive License
| License # | 804585 |
| Status | Inactive |
| State | California |
| Type | General Building, Siding And Decking, Concrete, Fencing |
| Business Type | Partnership |
- 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 Superior Builders at the California Contractors State License Board.
This is a sample of licensing data; click here to access a complete history.
Inactive License
| License # | 730820 |
| Status | Inactive |
| State | California |
| Type | General Building |
| Business Type | Partnership |
- 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 Superior Builders at the California Contractors State License Board.
This is a sample of licensing data; click here to access a complete history.
Inactive License
| License # | 1025219 |
| Status | Inactive |
| State | California |
| Type | General Building |
| Business Type | Partnership |
- 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 Superior Builders at the California Contractors State License Board.
This is a sample of licensing data; click here to access a complete history.
105
BuildZoom Score
Bonded
| Bonded Agent | Wesco Insurance Company |
| Bond Value | $15,000 |
Insured
| Workers Comp Provider | Clear Spring Property & Casualty Company |
46
Permits
- Building permit records show that Superior Builders has worked on 46 permitted projects.
Superior Builders Employees
CK
Christopher Alan Karvoski
Rme
JU
John Jason Uhl
General Partner
LB
Lisa Marie Byerley
Officer
MB
Marc William Byerley
Sole Owner
RR
Richard Gerald Robben
Limited Partner
VV
Vincent William Venuta
Qualify Partner
Working with John and his team at Superior Builders was fantastic. They built us an ADU in our backyard in Napa Valley that is better built than most homes. They were quality contractors in all categories of foundations, electrical, plumbing, framing, tile, flooring, roofing, etc. Extremely honest and courteous. Thrilled with the outcome, will always go to Superior Builders for future contracting needs.