Updated: Apr 15, 2026
Location and Projects
Address
P O BOX 2900, Berkeley, CA, 94702
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Kruse, L.J. Company Photos
Kruse, L.J. Company Plumber
L.J. Kruse Company is a family-owned business celebrating a century of plumbing, heating and cooling in the Bay Area. We offer an extraordinary range of services including health care, commercial construction, design-build engineering, BIM (Building Information Modeling) and a dynamic service and repair division. The firm operates from a modern LEED Gold facility in Berkeley, CA. Our skilled union craftsmen pride themselves in meeting the technical challenges of new commercial construction and delivering quality repair and maintenance to residential, commercial and industrial clients. Our focus is plumbing & piping and we service and install residential and commercial heating & cooling systems.
From BuildZoom: Kruse, L.J. Company, Berkeley, Po Box 2900, Berkeley, CA holds a Boiler, Hot Water Heating And Steam Fitting, Fire Protection, Plumbing, Warm Air Heating, Ventilating And Air Conditioning license and 1 other license according to the California license board.
Their BuildZoom score of 117 ranks in the top 1% of 336,931 California licensed contractors.
Their license was verified as active when we last checked. If you are thinking of hiring Kruse, L.J. Company, we recommend double-checking their license status with the license board and using our project planner to get competitive quotes.
Kruse, L.J. Company Services
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Kruse, L.J. Company Berkeley
Quality
117
99th percentile
Pro tip:
We generally recommend hiring a contractor with a score higher than 95.
Kruse, L.J. Company has a BuildZoom score of 117, which places them above 99% of 336,931 contractors in California.
Activity
|
15 projects
|
2025 |
|
23 projects
|
2024 |
|
20 projects
|
2023 |
Our building permit records indicate that Kruse, L.J. Company has worked on at least
58.0 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
|
3 projects
|
New Constructions |
|
37 projects
|
Plumbing projects |
Analyzing permits over the last 4 years shows that Kruse, L.J. Company mostly works on
plumbing project
and new construction
projects.
Pricing
|
3 projects
|
< $5k |
|
12 projects
|
$5k-$20k |
|
12 projects
|
$20k-$50k |
|
2 projects
|
$50k-$100k |
|
1 project
|
$100k-$250k |
The typical size of their permits is approximately $19,598. 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.
Replace wall furnace (4lpt) install neew williams 35 000 btu wall unit. furnist install new flue connect to existing gas with a new gas flex and shut off valve furnish + install new thermostat testing + safety check to ensure working saft system. on 12-20-2024
Valuation:
N/A
Permit #:
B25-00067
Status:
issued
Fee:
$507
Permit Type:
Residential
Building Type:
N/A
Work category: 8p; plumbing for a new laundry room and removal of an existing hydronic boiler (square heat type r boiler sbi model # 2x serial #3r10) and removal of a domestic hot water boiler ( a.o smith model # hw225m with serial #894 d97 37783). we are replacing this equipment with the following: for the hydronic system we will be installing two lochinvar 500k firetube condensing b... see more
Valuation:
N/A
Permit #:
PW20241202468
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Work category: 5p; above ground waste vent water and condensate piping to service new childcare facility. underground piping existing and not in scope. new 120 gallon electric water heater
Valuation:
N/A
Permit #:
PW20250919166
Status:
issued
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Replacing furnace in garage. adding one 120volt single phase 20amp single pole breaker circuit from existing panel #1 in garage to furnace location for new furnace itself
Valuation:
$20,281
Permit #:
B2025-00888
Status:
canceled
Fee:
$382
Permit Type:
N/A
Building Type:
N/A
1. provide and install (1) ibc sl 85 g3 hot water boiler with boiler pump and the following equipment for system operation a) auto water filler pressure reducer b) air purger c) expansion tank d) grundfos 26-99 fc system pump e) backflow preventer f) condensate neutralizer
Valuation:
$25,674
Permit #:
PW24-0075
Status:
final
Fee:
$498
Permit Type:
N/A
Building Type:
N/A
Provide and install (1) ibc sl 85 g3 hot water boiler with boiler pump and the following equipment for system operation a) auto water filler pressure reducer b) air purger c) expansion tank d) grundfos 26-99 fc system pump e) backflow preventer f) condensate neutralizer
Valuation:
$25,860
Permit #:
PW24-0071
Status:
final
Fee:
$499
Permit Type:
N/A
Building Type:
N/A
Furnace is located in a storage room we have included: 1. disconnect and remove existing equipment. 2. furnish and install a payne 80% afue ultra-low nox single stage gas multi 18-speed ecm model# pg80msua48060b. 1. connect to existing supply and return ducting after installing plenum stand and filter cabinet. 2. connect to existing gas shut off valve and flex also hard pipe out of fu... see more
Valuation:
$10,003
Permit #:
B2024-04646
Status:
final
Fee:
$196
Permit Type:
N/A
Building Type:
N/A
Work category: 2pa; room #3w474: new waste vent hot and cold water for the new hand washing sink. room #3w406: new waste vent hot and cold water for the new hand washing sink lavatory and water closet
Valuation:
N/A
Permit #:
PW20250909921
Status:
issued
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Work category: 11p; install new backflow device. device is dc 4 wilkins 350 ast. located in basement where water service enters building. sn: 51248a
Valuation:
N/A
Permit #:
PW20250326076
Status:
issued
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
This pays for inspections related to original permit # pw20220729591 filed 7/29/2022. dow: work category: 3pb; plumbing fixture replacement in units and shared restrooms. replacement of existing waste and vent system throughout building. installation of new commercial water heater
Valuation:
N/A
Permit #:
PW20230407039
Status:
expired
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Work category: 2pa; provide and install (9) koso seismic gas shutoff valves in the following sizes and quantities a) (5) koso ev vb300-7 b) (1) ¾” koso ev300-7 c) (1) 1” koso ev301-7 d) (1) 1” koso ev- vb300-7 e) (1) 2” koso ev – vb314-60
Valuation:
N/A
Permit #:
PW20241009241
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Work category: 2pb; modify below grade waste piping for new water closet. install of waste vent cold water reclaimed water and condensate to point of connections. new water closet lavy sink instant water heater and expansion tank to be installed
Valuation:
N/A
Permit #:
PW20230523236
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Work category: 2pb; rough water and waste piping for new fixtures including [2] sinks [2] floor sinks [3] floor cleanouts. installation of new water heater and expansion tank
Valuation:
N/A
Permit #:
PW20250610843
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Air conditioning location: would be where outdoor unit single zone ductless system would be (in back yard under deck as shown in pic uploaded) furnace location: would be where air handler unit ductless system would be (in crawl space) the existing system had asbestos that got abated but still has some in walls going up from crawl space
Valuation:
$28,828
Permit #:
B2023-04582
Status:
plancheck
Fee:
$115
Permit Type:
N/A
Building Type:
N/A
Work category: 2pa; provide and install ¾” type l copper piping and fittings for installation of hot water return line from hot water supply line at unit #610 to existing hot water return line at unit #609
Valuation:
N/A
Permit #:
PW20240918672
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Supply and install 1 ibc sl 10-85g3 boiler a. grundfos ups 15-58 pump b. grundfos ups 26-99 pump c. auto water filler pressure reducer d. air purger e. backflow preventer f. expansion tank
Valuation:
$25,530
Permit #:
PW24-0212
Status:
final
Fee:
$497
Permit Type:
N/A
Building Type:
N/A
Work category: 8p; installation of 2 peerless 64-e-09 steam boilers serial numbers 838953-202409 and 838952-202409 replacing steam boiler serial number 3389
Valuation:
N/A
Permit #:
PW20251007650
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Work category: 5p; reroute approx 20 of existing cast iron waste and vent piping in the ceiling of level 4
Valuation:
N/A
Permit #:
PW20250124566
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Installation of (1) noritz nrc 661 tankless water heater at existing water heater location in basement space with installation of new gas line from gas meter to tankless unit. separate electrical permit to be pulled by electrical contractor
Valuation:
$6,997
Permit #:
B2023-06120
Status:
issued
Fee:
$127
Permit Type:
N/A
Building Type:
N/A
Work category: 2pa; waste vent and water piping to plumbing fixtures on floors 14-16 including core restroom on level 15. waste vent and water piping to kitchen on the 16th floor. install new plumbing fixtures as specified on floors 14-16
Valuation:
N/A
Permit #:
PW20211130847
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Kruse, L.J. Company Reviews
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Verified License
BuildZoom confirmed this contractor's license
Kruse, L.J. Company License info
Verified License
| License # | 405523 |
| Status | Active |
| State | California |
| Type | Boiler, Hot Water Heating And Steam Fitting, Fire Protection, Plumbing, Warm Air Heating, Ventilating And Air Conditioning |
| Business Type | Corporation |
- BuildZoom verified this license was active as of April 2026.
Verify this license's status for Kruse, L.J. Company at the California Contractors State License Board.
This is a sample of licensing data; click here to access a complete history.
Inactive License
| License # | 310414 |
| Status | Inactive |
| State | California |
| Type | Boiler, Hot Water Heating And Steam Fitting, Warm Air Heating, Ventilating And Air Conditioning, Plumbing, Refrigeration, Sanitation System, Sheet Metal |
| 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.
Check this license's status for Kruse, L.J. Company at the California Contractors State License Board.
This is a sample of licensing data; click here to access a complete history.
117
BuildZoom Score
Bonded
| Bonded Agent | Federated Mutual Insurance Company |
| Bond Value | $15,000 |
Insured
| Workers Comp Provider | Cypress Insurance Company |
869
Permits
- Building permit records show that Kruse, L.J. Company has worked on 869 permitted projects.