Updated: Jun 05, 2026
Location and Projects
Address
4763 BENNETT DRIVE, Livermore, CA, 94551
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Marina Mechanical
Marina Mechanical, 4763 Bennett Dr, Livermore, CA (Employees: Carl Richard Koos, Carna Marie Phillips, and David Dennis Mann) holds a Warm Air Heating, Ventilating And Air Conditioning, Refrigeration, Insulation And Acoustical, Sheet Metal, Electrical, Boiler, Hot Water Heating And Steam Fitting, Plumbing license according to the California license board.
Their BuildZoom score of 108 ranks in the top 5% of 336,931 California licensed contractors.
Their license was verified as active when we last checked. If you are thinking of hiring Marina Mechanical, we recommend double-checking their license status with the license board and using our bidding system to get competitive quotes.
Marina Mechanical Contact Information
Phone Number: (510) 614-3500
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Address: 4763 BENNETT DRIVE, Livermore, CA 94551
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Marina Mechanical Livermore
Quality
108
95th percentile
Pro tip:
We generally recommend hiring a contractor with a score higher than 95.
Marina Mechanical has a BuildZoom score of 108, which places them above 95% of 336,931 contractors in California.
Activity
|
9 projects
|
2025 |
|
4 projects
|
2024 |
|
3 projects
|
2023 |
Our building permit records indicate that Marina Mechanical has worked on at least
16.0 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
|
Commercial Renovations |
|
10 projects
|
HVAC projects |
|
6 projects
|
Mechanical projects |
Analyzing permits over the last 4 years shows that Marina Mechanical mostly works on
hvac project
and mechanical project
projects.
Pricing
|
7 projects
|
$5k-$20k |
|
1 project
|
$100k-$250k |
|
2 projects
|
$250k-$500k |
The typical size of their permits is approximately $14,850. 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.
Replacing a total of 3 boilers 1 hydronic which feeds the wshp loop for the entire building and 2 domestic boilers that feed the entire building - the work is located in the rooftop mechanical room
Valuation:
$327,000
Permit #:
MEP-2025-297064
Status:
final
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Remove 16 rooftop package hvac units and replace with matching unit's same size same weight same volts hook up to existing duct work tie back into existing electrical and gas lines provide certified air balance
Valuation:
$418,670
Permit #:
B23-2364
Status:
final
Fee:
$3,462
Permit Type:
N/A
Building Type:
N/A
Miscellaneous water heater electrical plumbing hvac mechanical solar/pv
2024-09-16
Prepping of existing units for full removal: loto electrical at breaker remove electrical disconnect box recover refrigerant per epa guidelines and disconnect gas/condensate line. crane will remove existing carrier unit crane will lift economizer curb and new bryant unit to rooftop. marina mechanical will load and haul away old unit. place mount and secure package unit to curb. seal d... see more
Valuation:
$14,325
Permit #:
MISC2024-01736
Status:
triage
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Replace air cooled chiller
Valuation:
$246,233
Permit #:
M2504-014
Status:
final
Fee:
$125
Permit Type:
Air conditioning ...
Building Type:
N/A
Replacing all 16 rooftop package hvac units like to like same brand same size hvac unit replacement
Valuation:
$456,000
Permit #:
B23-2225
Status:
canceled
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Replace two package units like for like 7.5 and 10 ton on roof of jack in the box restaurant
Valuation:
$12,290
Permit #:
BLD25-01801
Status:
triage
Fee:
$391
Permit Type:
N/A
Building Type:
N/A
Scope: air conditioning -(n) air conditioning units on the roof are direct replacements of old units of the same manufacturer & within capacity (tonnage) equial to old air conditioning units. refer to approve plans. -remove (e) rooftop air conditioning unit. disconnect from (e) ductwork. temporary disconnect & cap all disconnected utility lines for future connectons of power gas line ... see more
Valuation:
$31,500
Permit #:
2021 038159 CI
Status:
final
Fee:
N/A
Permit Type:
Bank
Building Type:
N/A
Miscellaneous water heater electrical plumbing hvac mechanical solar/pv
2024-11-22
Like-for-like 4-ton rooftop package unit replacement. equipment size footprint and operating specifications are to be consistent from existing to new
Valuation:
$11,785
Permit #:
MISC2024-02152
Status:
triage
Fee:
$537
Permit Type:
N/A
Building Type:
N/A
To abate nov 202533749- to correct and repair sump pump lid
Valuation:
N/A
Permit #:
PP20250221686
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Install new sink trim on existing rough plumbing
Valuation:
N/A
Permit #:
PP20250401404
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Room hvac system unit change out l4l
Valuation:
$14,850
Permit #:
BP_2025-0015
Status:
final
Fee:
$743
Permit Type:
Repair/replace
Building Type:
N/A
Replacement of air cooled condensers no change to interior units at wells fargo operations center
Valuation:
$475,000
Permit #:
B20-0873
Status:
final
Fee:
$17,790
Permit Type:
N/A
Building Type:
N/A
Miscellaneous water heater electrical plumbing hvac mechanical solar/pv
2025-02-03
Remove and repalce rooftop unit
Valuation:
$11,850
Permit #:
MISC2025-00207
Status:
triage
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
1000-1010 market st: install only low voltage thermostat wire. 4 story building
Valuation:
N/A
Permit #:
E202308118697
Status:
filed
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Scope of work to include: remove and replace various (e) units on the rooftop of a senior living partment complex mechanical permit under 21-038348
Valuation:
$4,950
Permit #:
2022 654404 MF
Status:
filed
Fee:
N/A
Permit Type:
Apartment
Building Type:
N/A
Little caesars - changeout with (n) 7.5 ton unit in same rooftop location (3000 cfm)
Valuation:
$11,750
Permit #:
BCMECH-25-0001
Status:
triage
Fee:
$598
Permit Type:
Replace
Building Type:
N/A
Furnish & install two (2) wall furnaces for units 204 & 304 connect to existing duct work
Valuation:
N/A
Permit #:
B2023-03427
Status:
approved
Fee:
$158
Permit Type:
N/A
Building Type:
N/A
Addition exhaust fan replace upgrades to duct mdf upgrade (2) airhandeling units
Valuation:
$558,000
Permit #:
201800986
Status:
issued
Fee:
$11,974
Permit Type:
Commercial remode...
Building Type:
N/A
Peet's coffee & tea: replace ac-11 rooftop gas heat electric
Valuation:
N/A
Permit #:
B-BP24-0492
Status:
final
Fee:
$2,284
Permit Type:
Equipment install...
Building Type:
N/A
All work in gph2: furnish and install a vrf system [fan coils and condensing units] with associated ductwork refrigerant piping linnear lot diffusers and insulation install air balance controls insulation and isolation
Valuation:
N/A
Permit #:
PM20190122428
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
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BZ Score
$11.9K
Avg Project
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BZ Score
$10.5K
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BZ Score
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Projects
Marina Mechanical Reviews
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Verified License
BuildZoom confirmed this contractor's license
Marina Mechanical License info
Verified License
| License # | 416198 |
| Status | Active |
| State | California |
| Type | Warm Air Heating, Ventilating And Air Conditioning, Refrigeration, Insulation And Acoustical, Sheet Metal, Electrical, Boiler, Hot Water Heating And Steam Fitting, Plumbing |
- BuildZoom verified this license was active as of June 2026.
Verify this license's status for Marina Mechanical at the California Contractors State License Board.
This is a sample of licensing data; click here to access a complete history.
108
BuildZoom Score
Bonded
| Bonded Agent | This License Filed A Contractor's Bond With |
| Bond Value | $25,000 |
Insured
| Workers Comp Provider | Zurich American Insurance Company |
140
Permits
- Building permit records show that Marina Mechanical has worked on 140 permitted projects.
Marina Mechanical Employees
CK
Carl Richard Koos
Officer
CP
Carna Marie Phillips
Officer
DM
David Dennis Mann
Officer
JH
James Robert Hussey
Rmo / Ceo / Pres
MM
Marina Mechanical
Owner
RD
Robyn Louise Duranleau
Officer
SL
Sheri Ann Learmonth
Ceo / President