Updated: Jun 23, 2026
Location and Projects
Address
Los Angeles, CA, 90024
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Doctor Piper Plumber
Doctor Piper Inc, Los Angeles, CA (Owned by: Mladen Mladenov) holds a Contractor license and 1 other license according to the Oceanside license board.
Their BuildZoom score of 113 ranks in the top 3% of 336,931 California licensed contractors.
Their license was verified as active when we last checked. If you are thinking of hiring Doctor Piper Inc, we recommend double-checking their license status with the license board and using our project planner to get competitive quotes.
Doctor Piper Inc Services
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Doctor Piper Inc Contact Information
Phone Number: (310) 866-2286
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Doctor Piper Inc Los Angeles
Quality
113
97th percentile
Pro tip:
We generally recommend hiring a contractor with a score higher than 95.
Doctor Piper Inc has a BuildZoom score of 113, which places them above 97% of 336,931 contractors in California.
Activity
|
16 projects
|
2025 |
|
43 projects
|
2024 |
|
53 projects
|
2023 |
Our building permit records indicate that Doctor Piper Inc has worked on at least
112.0 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
|
86 projects
|
Plumbing projects |
Analyzing permits over the last 4 years shows that Doctor Piper Inc mostly works on
plumbing project
projects.
Pricing
|
4 projects
|
< $5k |
|
14 projects
|
$5k-$20k |
The typical size of their permits is approximately $10,500. 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.
This is a sample of this contractor's permits. Click here to access their complete permit history.
Installation of a roof-mounted microinverter/ac module solar photovoltaic (pv) system not exceeding 38.4kw in a 1 or 2 family dwelling
Valuation:
N/A
Permit #:
25041-90000-28751
Status:
issued
Fee:
N/A
Permit Type:
1 or 2 family dwe...
Building Type:
N/A
Residential alteration or addition - plan check-permit
2025-02-24
Cross street: el tordo description of work: whole house re-pipe with cooper for existing single family dwelling misc plumbing
Valuation:
N/A
Permit #:
PDS2025-RESALT-001440
Status:
complete
Fee:
$346
Permit Type:
N/A
Building Type:
N/A
Residential alteration or addition - plan check-permit
2025-01-21
Cross street: aliso canyon description of work: whole house re-pipe with pex misc plumbing for existing single family dwelling
Valuation:
N/A
Permit #:
PDS2025-RESALT-000501
Status:
complete
Fee:
$346
Permit Type:
N/A
Building Type:
N/A
No-plan - residential - combination mech/elec/plum
2025-04-29
No-plan - residential - combination mech/elec/plum:13717/stoney gate
Valuation:
N/A
Permit #:
PMT-3350807
Status:
complete
Fee:
$219
Permit Type:
N/A
Building Type:
N/A
No-plan - residential - combination mech/elec/plum
2025-01-09
No-plan - residential - combination mech/elec/plum:12625/via colmenar
Valuation:
N/A
Permit #:
PMT-3331367
Status:
complete
Fee:
$219
Permit Type:
N/A
Building Type:
N/A
No-plan - residential - combination mech/elec/plum
2025-04-08
No-plan - residential - combination mech/elec/plum:12935/orangeburg
Valuation:
N/A
Permit #:
PMT-3347033
Status:
issued
Fee:
$219
Permit Type:
N/A
Building Type:
N/A
No-plan - residential - combination mech/elec/plum
2025-03-04
No-plan - residential - combination mech/elec/plum:10981/polaris
Valuation:
N/A
Permit #:
PMT-3340878
Status:
complete
Fee:
$219
Permit Type:
N/A
Building Type:
N/A
No-plan - residential - combination mech/elec/plum:8952/january
Valuation:
N/A
Permit #:
PMT-3332278
Status:
issued
Fee:
$219
Permit Type:
N/A
Building Type:
N/A
No-plan - residential - combination mech/elec/plum:4630/bryson
Valuation:
N/A
Permit #:
PMT-3345193
Status:
issued
Fee:
$219
Permit Type:
N/A
Building Type:
N/A
Residential alteration or addition - plan check-permit
2024-01-03
Cross street: glenoak rd description of work: entire house water lines repipe with copper plumbing misc for existing single family dwelling
Valuation:
N/A
Permit #:
PDS2024-RESALT-000063
Status:
complete
Fee:
$337
Permit Type:
N/A
Building Type:
N/A
Installation of a roof-mounted central/string inverter solar photovoltaic (pv) system not exceeding 38.4kw in a 1 or 2 family dwelling
Valuation:
N/A
Permit #:
24041-90000-28232
Status:
issued
Fee:
N/A
Permit Type:
1 or 2 family dwe...
Building Type:
N/A
Residential alteration or addition - plan check-permit
2024-02-28
Cross street: hutchison st description of work: copper re-pipe of entire house misc. plumbing for existing single family dwelling
Valuation:
N/A
Permit #:
PDS2024-RESALT-001540
Status:
complete
Fee:
$337
Permit Type:
N/A
Building Type:
N/A
Residential alteration or addition - plan check-permit
2023-06-12
Cross street: shady pine st description of work: water line re-pipe for existing single family dwelling misc plumbing
Valuation:
N/A
Permit #:
PDS2023-RESALT-009424
Status:
complete
Fee:
$310
Permit Type:
N/A
Building Type:
N/A
New branch circuit incidental to the installation of a solar water heating system under permit 18042-90000-04636
Valuation:
N/A
Permit #:
18041-90000-06641
Status:
final
Fee:
N/A
Permit Type:
Apartment
Building Type:
N/A
No-plan - residential - combination mech/elec/plum
2024-12-04
No-plan - residential - combination mech/elec/plum:14459/corte morea
Valuation:
N/A
Permit #:
PMT-3326176
Status:
complete
Fee:
$217
Permit Type:
N/A
Building Type:
N/A
Whole house repipe with copper
Valuation:
$16,000
Permit #:
WEB25-0539
Status:
final
Fee:
$215
Permit Type:
N/A
Building Type:
N/A
Residential alteration or addition - plan check-permit
2024-09-04
Cross street: via diego description of work: water line re-pipe misc plumbing for existing single family dwelling
Valuation:
N/A
Permit #:
PDS2024-RESALT-007284
Status:
complete
Fee:
$346
Permit Type:
N/A
Building Type:
N/A
Whole house repipe w copper
Valuation:
$16,000
Permit #:
BLDG25-0608
Status:
filed
Fee:
$212
Permit Type:
Simple
Building Type:
N/A
Residential alteration or addition - plan check-permit
2023-06-14
Cross street: deer trail dr description of work: whole house water lines re-pipe with copper
Valuation:
N/A
Permit #:
PDS2023-RESALT-009547
Status:
complete
Fee:
$300
Permit Type:
N/A
Building Type:
N/A
Residential alteration or addition - plan check-permit
2022-12-09
Cross street: meadow glen way e description of work: misc plumbing for re-pipe for existing single family dwelling
Valuation:
N/A
Permit #:
PDS2022-RESALT-015870
Status:
complete
Fee:
$300
Permit Type:
N/A
Building Type:
N/A
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Doctor Piper Inc Reviews
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Verified License
BuildZoom confirmed this contractor's license
Doctor Piper Inc License info
Verified License
| License # | 885044 |
| Status | Active |
| City | Oceanside |
| Type | Contractor |
| Business Type | Corporation |
- BuildZoom verified this license was active as of June 2026.
Verify this license's status for Doctor Piper Inc at the City of Oceanside, CA.
This is a sample of licensing data; click here to access a complete history.
Verified License
| License # | 885044 |
| Status | Active |
| State | California |
| Type | Plumbing, Solar |
| Business Type | Corporation |
- BuildZoom verified this license was active as of April 2026.
Verify this license's status for Doctor Piper Inc at the California Contractors State License Board.
This is a sample of licensing data; click here to access a complete history.
113
BuildZoom Score
Bonded
| Bonded Agent | Wesco Insurance Company |
| Bond Value | $15,000 |
Insured
| Workers Comp Provider | State Compensation Insurance Fund |
925
Permits
- Building permit records show that Doctor Piper Inc has worked on 925 permitted projects.
Doctor Piper Inc Employees
MM
Mladen Mladenov
Owner
MM
Mladen Stoychev Mladenov
Rmo/Ceo/Pres
SS
Svetoslav Petrov Stefanov
Officer