Updated: May 18, 2026
Location and Projects
Address
P O BOX 18329, Anaheim, CA, 92817
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Keystone Builders Plumber
Keystone Builders, Anaheim, Po Box 18329, Anaheim, CA (Owned by: Loren Wayne Pritchard) holds a General Building license and 4 other licenses according to the California license board.
Their BuildZoom score of 100 ranks in the top 13% of 336,931 California licensed contractors.
Their license was verified as active when we last checked. If you are thinking of hiring Keystone Builders, we recommend double-checking their license status with the license board and using our project planner to get competitive quotes.
Keystone Builders Services
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Keystone Builders Contact Information
Phone Number: (213) 268-0895
Address: P O BOX 18329, Anaheim, CA 92817
Keystone Builders Anaheim
Quality
100
87th percentile
Pro tip:
We generally recommend hiring a contractor with a score higher than 95.
Keystone Builders has a BuildZoom score of 100, which places them above 87% of 336,931 contractors in California.
Activity
|
1 project
|
2024 |
|
1 project
|
2023 |
Our building permit records indicate that Keystone Builders has worked on at least
2.0 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.
Pricing
|
1 project
|
< $5k |
|
1 project
|
$250k-$500k |
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.
Plumbing gas for future use and water line to pre-fab fountain
Valuation:
$371,690
Permit #:
P2024-0107
Status:
final
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Delta 2 - abandon existing sewer line (1)
Valuation:
$371,690
Permit #:
REV2024-0517
Status:
approved
Fee:
$178
Permit Type:
N/A
Building Type:
N/A
Electrical circuit for pre-fab fountain
Valuation:
$371,690
Permit #:
E2024-0167
Status:
final
Fee:
$47
Permit Type:
N/A
Building Type:
N/A
Install curb drain (x2022-0804)
Valuation:
$371,690
Permit #:
N2024-0112
Status:
final
Fee:
$850
Permit Type:
N/A
Building Type:
N/A
Delta 3 - rev to include through penetration firestep system detail for wall heater vents and update energy analysis
Valuation:
$371,690
Permit #:
REV2023-2410
Status:
approved
Fee:
$400
Permit Type:
N/A
Building Type:
N/A
Manufactured interior remodel 3397 sf
Valuation:
$371,690
Permit #:
X2022-0804
Status:
final
Fee:
$7,972
Permit Type:
N/A
Building Type:
N/A
Delta 2 structural revision to change footing to continuos footing at garage
Valuation:
$371,690
Permit #:
REV2023-1422
Status:
approved
Fee:
$71
Permit Type:
N/A
Building Type:
N/A
Manufactured interior remodel 3379 sf
Valuation:
$371,690
Permit #:
0729-2022
Status:
approved
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Manufactured fire alarm (4 devices) *xr2022-0804*
Valuation:
N/A
Permit #:
PC2024-0705
Status:
approved
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Manufactured fire alarm (4 devices) *xr2022-0804*
Valuation:
$1,000
Permit #:
F2024-0169
Status:
final
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
2nd floor corridor only* interior demolish * partition wall * (1) heat pump * misc electrical * misc duct work * no fee city permit * revised 11/7/11 to addition delta # 1 tnp*6/18/12 revision to corridor detail submitted & approved rw
Valuation:
N/A
Permit #:
B0900161
Status:
FINALED
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Supplemental to permit # 12016-10000-08122 to revise structural plan : install new conc. wall above (e) cooling tower room ( no height changes)
Valuation:
N/A
Permit #:
12016-10002-08122
Status:
final
Fee:
N/A
Permit Type:
Commercial
Building Type:
N/A
Repair damaged wood awning same legth and location
Valuation:
$4,500
Permit #:
BX15-00557
Status:
issued
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Supplemental permit to 12016-10000-08122 to change contractor from dorriz quality builders inc. to keystone builders (#951489)
Valuation:
N/A
Permit #:
12016-10001-08122
Status:
final
Fee:
N/A
Permit Type:
Commercial
Building Type:
N/A
Unit 102 - condo remodel: 3 bathrooms kitchen cabinets flooring (wood & tile)
Valuation:
N/A
Permit #:
BS1229157
Status:
final
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Unit 102 - condo remodel: 3 bathrooms kitchen cabinets flooring (wood & tile)
Valuation:
N/A
Permit #:
BS1229158
Status:
final
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Unit 102 - condo remodel: 3 bathrooms kitchen cabinets flooring (wood & tile)
Valuation:
N/A
Permit #:
BS1229159
Status:
final
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Unit 102 - condo remodel: 3 bathrooms kitchen cabinets flooring (wood & tile)
Valuation:
N/A
Permit #:
BS1229162
Status:
final
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Atf kitchen & bathroom remodel 359 sf 200amp service
Valuation:
N/A
Permit #:
RES2020-00398
Status:
final
Fee:
N/A
Permit Type:
Remodel
Building Type:
N/A
New u-occ storage shed 576 sf with a covered area on the side 288 sf. located south of the residence. no electrical or plumbing
Valuation:
$25,000
Permit #:
10000589
Status:
complete
Fee:
$1,153
Permit Type:
N/A
Building Type:
N/A
Keystone Builders Reviews
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Recent Buildzoom Projects
Verified License
BuildZoom confirmed this contractor's license
Keystone Builders License info
Verified License
| License # | 951489 |
| Status | Active |
| State | California |
| Type | General Building |
| Business Type | Sole Ownership, Corporation |
- BuildZoom verified this license was active as of January 2026.
Verify this license's status for Keystone 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 # | 1108268 |
| Status | Inactive |
| State | California |
| Type | Plumbing |
| Business Type | Sole Ownership, 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.
Check this license's status for Keystone 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 # | 890543 |
| Status | Inactive |
| State | California |
| Type | General Building |
| Business Type | Sole Ownership, 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.
Check this license's status for Keystone 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 # | 936046 |
| Status | Inactive |
| State | California |
| Type | General Building |
| Business Type | Sole Ownership, 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.
Check this license's status for Keystone 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 # | 1004886 |
| Status | Inactive |
| State | California |
| Type | General Building |
| Business Type | Sole Ownership, 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.
Check this license's status for Keystone Builders at the California Contractors State License Board.
This is a sample of licensing data; click here to access a complete history.
100
BuildZoom Score
Bonded
| Bonded Agent | Hudson Insurance Company |
| Bond Value | $15,000 |
Insured
| Workers Comp Provider | Wesco Insurance Company |
12
Permits
- Building permit records show that Keystone Builders has worked on 12 permitted projects.
Keystone Builders Employees
FH
Fernando Agustin Heyer
Owner
JS
Jonathon Ross Somich
Owner
KM
Karim Mohammad Makarehchi
Rmo / Ceo / Pres
LP
Loren Wayne Pritchard
Owner