Updated: Jun 06, 2026
Location and Projects
Address
3600 VIOLET STREET, Seal Beach, CA, 90740
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Kelso & Phelps Plumbing Inc
Kelso & Phelps Plumbing Inc, 3600 Violet St, Seal Beach, CA (Employees: Dale Allen Phelps, Jeffrey Allen Phelps, and Jimmie L Kelso) holds a Plumbing license and 3 other licenses according to the California license board.
Their BuildZoom score of 93 ranks in the top 27% of 336,931 California licensed contractors.
Their license was verified as active when we last checked. If you are thinking of hiring Kelso & Phelps Plumbing Inc, we recommend double-checking their license status with the license board and using our project planner to get competitive quotes.
Kelso & Phelps Plumbing Inc Services
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Kelso & Phelps Plumbing Inc Contact Information
Phone Number: (310) 630-0310
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Address: 3600 VIOLET STREET, Seal Beach, CA 90740
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Building Permits by Kelso & Phelps Plumbing Inc
This is a sample of this contractor's permits. Click here to access their complete permit history.
Revision to previously approved plan. original plan under 13042-10000-05689. water service with 1-1/2 weter hi/low per dwp on 5/7/13-84/81 psi. system sized per 9.0psi/100ft. plan check only
Valuation:
N/A
Permit #:
13042-10001-05689
Status:
approved
Fee:
N/A
Permit Type:
Commercial
Building Type:
N/A
Tenant improvement new restrooms in existing building. plan check for potable water waste/vent and fuel gas system. 3 existing wm's: 2x2 wm and 1x1.5"wm
Valuation:
$250,000
Permit #:
13042-10000-02779
Status:
final
Fee:
N/A
Permit Type:
Commercial
Building Type:
N/A
Interior removal of nonstructural partitions and construction of 2 hour demising wall. complete one-hour occupancy separation between office and warehouse. ref bld2004-00290
Valuation:
$0
Permit #:
PLM2004-00187
Status:
Finaled
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Plumbing fixtures wtr htr
Valuation:
N/A
Permit #:
P0103-15
Status:
final
Fee:
$1,288
Permit Type:
Out of scope plum...
Building Type:
N/A
Re-pipe restrooms
Valuation:
N/A
Permit #:
16042-90000-22169
Status:
final
Fee:
N/A
Permit Type:
Commercial
Building Type:
N/A
Raise two water heaters off garage floor
Valuation:
N/A
Permit #:
15042-40000-10679
Status:
final
Fee:
N/A
Permit Type:
1 or 2 family dwe...
Building Type:
N/A
Supplemental to 13042-10000-02779 to correct address extra trip and 1 backwater valve
Valuation:
N/A
Permit #:
13042-40001-02779
Status:
final
Fee:
N/A
Permit Type:
Commercial
Building Type:
N/A
Plan check for plumbing renovation to existing 4 story office building. existing 2 water meter & existing 3 rp device & prvs existing. water only
Valuation:
N/A
Permit #:
08042-10000-12030
Status:
final
Fee:
N/A
Permit Type:
Commercial
Building Type:
N/A
La gardena site. water service. 2 wm. 84/67 psi a = 1.97 psi/100 ft
Valuation:
N/A
Permit #:
13042-10000-05689
Status:
final
Fee:
N/A
Permit Type:
Commercial
Building Type:
N/A
Supplemental to permit # 13042-10000-02779 for additional items
Valuation:
N/A
Permit #:
13042-40003-02779
Status:
final
Fee:
N/A
Permit Type:
Commercial
Building Type:
N/A
Supplemental to permit # 13042-10000-02779 for extra trip fee
Valuation:
N/A
Permit #:
13042-40002-02779
Status:
final
Fee:
N/A
Permit Type:
Commercial
Building Type:
N/A
New air compressors compressed air piping floor sink
Valuation:
N/A
Permit #:
13042-90000-00855
Status:
final
Fee:
N/A
Permit Type:
Commercial
Building Type:
N/A
Water piping to ice maker boxes
Valuation:
N/A
Permit #:
13042-40000-22050
Status:
final
Fee:
N/A
Permit Type:
Commercial
Building Type:
N/A
Supplement to plm04 00208 5n spr ten imp paneria bread office retail building shell 3 new water services and one sewer drain
Valuation:
N/A
Permit #:
PLM04-00290
Status:
final
Fee:
$57
Permit Type:
N/A
Building Type:
N/A
Add plumbing for ti 1st - 5th floors-ref bp #bld2000-00628 06/07/2000 added 1 floor drain & 2 rainwater/2 overflows
Valuation:
$0
Permit #:
PLM2000-00703
Status:
Finaled
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
New restroom and bar sink
Valuation:
N/A
Permit #:
1401210030
Status:
final
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Remodel existing restrooms to comply with handicapped requirements
Valuation:
N/A
Permit #:
12042-90000-02653
Status:
final
Fee:
N/A
Permit Type:
Commercial
Building Type:
N/A
Connection to public sewer (engineering no. s2006500104) supplemental to permit no. 006042-40000-01275
Valuation:
N/A
Permit #:
06042-40001-01275
Status:
final
Fee:
N/A
Permit Type:
Commercial
Building Type:
N/A
Extension facade remodel airport plaza extension facade remodel and remove 4256sf stub out water lines roof drains future sewer lines new water service
Valuation:
N/A
Permit #:
PLM04-00115
Status:
final
Fee:
$48
Permit Type:
N/A
Building Type:
N/A
Instant hot water heater
Valuation:
$0
Permit #:
12042-90000-14252
Status:
Permit Finaled
Fee:
N/A
Permit Type:
Commercial
Building Type:
N/a
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Verified License
BuildZoom confirmed this contractor's license
Kelso & Phelps Plumbing Inc License info
Verified License
| License # | 968835 |
| Status | Active |
| State | California |
| Type | Plumbing |
| Business Type | Corporation |
- BuildZoom verified this license was active as of January 2026.
Verify this license's status for Kelso & Phelps Plumbing Inc at the California Contractors State License Board.
This is a sample of licensing data; click here to access a complete history.
Inactive License
| License # | 684948 |
| Status | Inactive |
| State | California |
| Type | Plumbing |
| Business Type | Corporation |
- 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 Kelso & Phelps Plumbing Inc at the California Contractors State License Board.
This is a sample of licensing data; click here to access a complete history.
Inactive License
| License # | 255509 |
| Status | Inactive |
| State | California |
| Type | Plumbing |
| Business Type | Corporation |
- 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 Kelso & Phelps Plumbing Inc at the California Contractors State License Board.
This is a sample of licensing data; click here to access a complete history.
Inactive License
| License # | 493210 |
| Status | Inactive |
| State | California |
| Type | Plumbing |
| Business Type | Corporation |
- 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 Kelso & Phelps Plumbing Inc at the California Contractors State License Board.
This is a sample of licensing data; click here to access a complete history.
93
BuildZoom Score
Bonded
| Bonded Agent | Western Surety Company |
| Bond Value | $15,000 |
Insured
| Workers Comp Provider | Security National Insurance Company |
77
Permits
- Building permit records show that Kelso & Phelps Plumbing Inc has worked on 77 permitted projects.
Kelso & Phelps Plumbing Inc Employees
DP
Dale Allen Phelps
Rmo / Ceo / Pres
JP
Jeffrey Allen Phelps
Officer
JK
Jimmie L Kelso
Sole Owner
JP
Judy Ann Phelps
Officer