Updated: Apr 22, 2026
Location and Projects
Address
PO BOX 1405, San Mateo, CA, 94401
Use our bidding system to
request a quote
Richard Lin Plumber
Richard Lin at PO BOX 1405, San Mateo, CA 94401, held a Plumber license (#870014) with the California contractors license board with an expiration date of 12-31-2027. We last verified the license was inactive on 04-21-2026.
Their BuildZoom score is 0 because we haven’t been able to verify an active license. As a result, they’re not ranked in the top 50% of 336,931 California contractors.
If you’re thinking about hiring them, we recommend double-checking their license status with your local licensing authority. Alternatively, use our project planner to be easily matched to qualified, licensed professionals in your area.
Richard Lin Services
Start a project today:
Richard Lin Contact Information
Phone Number: (415) 972-9285
Edit
Address: PO BOX 1405, San Mateo, CA 94401
Edit
Do you work for this business? Unlock this free profile to update company info and see who's viewing your profile.
Richard Lin San Mateo
Quality
Alert*
Pro tip:
We generally recommend hiring a contractor with a score higher than 95.
*No active license on file. If you are Richard Lin, click “This is My Business” to update your information.
Activity
|
7 projects
|
2025 |
|
4 projects
|
2024 |
|
6 projects
|
2023 |
Our building permit records indicate that Richard Lin has worked on at least
17.0 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
|
Home Additions |
|
10 projects
|
Plumbing projects |
Analyzing permits over the last 4 years shows that Richard Lin mostly works on
plumbing project
and home addition
projects.
Pricing
|
2 projects
|
< $5k |
|
5 projects
|
$5k-$20k |
|
3 projects
|
$20k-$50k |
|
3 projects
|
$50k-$100k |
|
1 project
|
$250k-$500k |
The typical size of their permits is approximately $20,587. 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.
Pending payment route building plng fire cd pw arb permit to address swn issued 4/28/25 1. legalized unpermitted sunroom area and convert it into the attached aduwith 342 sq.ft. 2. convert existing builing area of 339 sq.ft. into the jadu 3. convert existing unpermitted storage area into detached adu with 190 sq.ft
Valuation:
$250,000
Permit #:
BD-2025-299943
Status:
plancheck
Fee:
$0
Permit Type:
N/A
Building Type:
N/A
Installation of (20) fire srpinklers system throughout ground floor according to app# 202202047404 per nfpa 13 2022 and underground piping per nfpa 24 (trench backfill and sidewalk repair by other under separate permit)
Valuation:
$20,587
Permit #:
202501108156
Status:
issued
Fee:
N/A
Permit Type:
N/A
Building Type:
28 - 2 family dwe...
Ref pa 202007290911 installation of (105) new fire sprinkler throughout the building per nfpa 13, 14 2022 & undeground piping per nfpa 24. underground pipingper nfpa 24. (trench backfill & sidewalk repair under separate permit)
Valuation:
$72,500
Permit #:
202403258526
Status:
issued
Fee:
N/A
Permit Type:
N/A
Building Type:
24 - apartments
Installation of (101) new fire sprinklers throughout the building according to permit 202206236943 per nfpa 13 2022 and underground piping per nfpa 24 (trench backfill and sidewalk repair by other under separate permit)
Valuation:
$70,900
Permit #:
202403057153
Status:
issued
Fee:
N/A
Permit Type:
N/A
Building Type:
24 - apartments
Prabhakar residence: demolish interior wall around kitchen and f
Valuation:
N/A
Permit #:
B-BP25-0236
Status:
issued
Fee:
$5,170
Permit Type:
Remodel-addition
Building Type:
N/A
Install of 18 fire sprinklers throughout the first floor ref 202501178530 per nfpa 13 r 2022 and underground pipe per nfpa 24 ( trench and backflu side walk repair on separate permit
Valuation:
$18,387
Permit #:
202509185606
Status:
issued
Fee:
N/A
Permit Type:
N/A
Building Type:
27 - 1 family dwe...
Install 84 new fire sprinklers thu building according to n/c pa#202001091565 & demolish pa# 202001091562 per nfpa 13 2022. underground piping nfpa 24 side walk repair by seperate permit
Valuation:
$60,338
Permit #:
202407186788
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
28 - 2 family dwe...
Revise fire sprinkler system 201503161018 addition 4 according to 2022 0517 4418 per nfpa 13 2022. total addition 6 pendemt head at ground fl new dwelling unit and change all pendent heads to flat plate type
Valuation:
$4,200
Permit #:
202301200496
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
24 - apartments
Installation of new fire sprinkler system throughout the ground floor according to app# 202106142387 per nfpa13r 2022 edition & nfpa24. underground sprinkler pipe. total 18 sprinkler heads
Valuation:
$18,865
Permit #:
202402145896
Status:
issued
Fee:
N/A
Permit Type:
N/A
Building Type:
24 - apartments
Installation of new fire sprinkler system throughout building according to 201711133867 201711133870 and 201905029520 per nfpa 13 2022 edition and nfpa 24 underground 2 pipe-11 feet. total 53 sprinkler heads
Valuation:
$39,750
Permit #:
202312192769
Status:
issued
Fee:
N/A
Permit Type:
N/A
Building Type:
24 - apartments
Installation of 48 new fire spinklers throughout the building according to pa# 202208029768 per nfpa 13 2022 and underground piping per nfpa 24 trench backfill and sidewalk repair by separate permit
Valuation:
$39,000
Permit #:
202410243662
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
28 - 2 family dwe...
Unit#: 302; intallation of (22) sprinklers to legalized unit #302 and relevance egress according to pa#: 201809119659 per nfpa13 and underground piping per nfpa 24 (trench backfill and sidewalk repair by separate permit) fire permit only
Valuation:
$18,354
Permit #:
202210053802
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
24 - apartments
Install of (25) fire sprinklers at entire ground floor according to app# 2016-1219-5375 per nfpa 13 & underground piping per nfpa 24 (trench backfill & sidewalk by separate permit)
Valuation:
$12,500
Permit #:
202012311972
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
-
Install 20 fire sprinklers at entire basement floor. ref pa #201910295858 per nfpa 13 incl 2 underground piping per nfpa 24 - 12'6. trench backfill & sidewalk repair under sep permit. bell & sprinkler monitoring under sep permit
Valuation:
$15,994
Permit #:
202112204748
Status:
issued
Fee:
N/A
Permit Type:
N/A
Building Type:
24 - apartments
Modify of fire sprinklers system to accommodate new partitioning at unit 312 pa#202012090628. total relocate (1) addition (4) sprinkler heads
Valuation:
$3,000
Permit #:
202111162531
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
24 - apartments
Revision to pa# 201706290708s3r4. new fire sprinler system throughout including underground 4 fire service and standpipes per nfpa 13 14 &24
Valuation:
$1
Permit #:
202112305197
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
24 - apartments
Modify of fire sprinklers @ 1st floor unit #23 & exit passage way & basement passage way per nfpa 13 according to app # 2017 1004 0413; total = 18 fire sprinkler heads
Valuation:
$9,000
Permit #:
202011038101
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
-
Modify f/s to accommodate new acoustical ceiling per nfpa 13 2022 ref bpa#202205234786. total addition (17) sprinkler heads
Valuation:
$10,200
Permit #:
202301170230
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
36 - day care center
Addition (48) fire sprinklers at new mezzanine ground & second floor front part office building shelf per nfpa 13 according to app# 2019-0403-6997
Valuation:
$24,000
Permit #:
202012311961
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
-
100% affordable housing. building b. to erect a type v-a 3-story 2-unit residential condos with one basement
Valuation:
$300,000
Permit #:
201812198761
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
28 - 2 family dwe...
Similar Contractors See more
128
BZ Score
$23K
Avg Project
-
Projects
142
BZ Score
$25K
Avg Project
-
Projects
142
BZ Score
$6.5K
Avg Project
-
Projects
License # 1156175
San Mateo, CA
92
BZ Score
-
Avg Project
-
Projects
Richard Lin Reviews
BuildZoom hasn't received any reviews for Richard Lin. Click here to be alerted when reviews are posted about them.
Recent Buildzoom Projects
Let us find you a plumber in your area today
We'll search our vast network of Plumbers and connect
you with one that meets your needs today.
Richard Lin License info
Inactive License
| License # | 870014 |
| Status | Inactive |
| State | California |
| Type | General Building, Electrical, Fire Protection |
| Business Type | Sole Ownership |
- 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 Richard Lin at the California Contractors State License Board.
This is a sample of licensing data; click here to access a complete history.
ALERT*
BuildZoom Score
- How the BuildZoom Score works
- *No active license on file. If you are Richard Lin, click “This is My Business” to update your information.
Bonded
| Bonded Agent | Surety Company Of The Pacific |
| Bond Value | $12,500 |
46
Permits
- Building permit records show that Richard Lin has worked on 46 permitted projects.
Richard Lin Employees
RL
Richard Xu Chu Lin
Sole Owner