Updated: Jun 01, 2026
Location and Projects
Address
P O BOX 450, Sonoma, CA, 95476
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Peterson Mechanical Inc
Peterson Mechanical Inc, Sonoma, Po Box 450, Sonoma, CA (Employees: Les Manning Peterson, Michael Alden Titchenal, and Peggy Ann Peterson) holds a Warm Air Heating, Ventilating And Air Conditioning, General Building, Fire Protection, Plumbing, Refrigeration, Sanitation System, Sheet Metal, Boiler, Hot Water Heating And Steam Fitting, Pipeline license according to the California license board.
Their BuildZoom score of 115 ranks in the top 2% of 336,931 California licensed contractors.
Their license was verified as active when we last checked. If you are thinking of hiring Peterson Mechanical Inc, we recommend double-checking their license status with the license board and using our bidding system to get competitive quotes.
Peterson Mechanical Inc Contact Information
Phone Number: (707) 938-8481
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Address: P O BOX 450, Sonoma, CA 95476
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Peterson Mechanical Inc Sonoma
Quality
115
98th percentile
Pro tip:
We generally recommend hiring a contractor with a score higher than 95.
Peterson Mechanical Inc has a BuildZoom score of 115, which places them above 98% of 336,931 contractors in California.
Activity
|
20 projects
|
2025 |
|
21 projects
|
2024 |
|
40 projects
|
2023 |
Our building permit records indicate that Peterson Mechanical Inc has worked on at least
81.0 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 |
|
73 projects
|
HVAC projects |
|
24 projects
|
Mechanical projects |
Analyzing permits over the last 4 years shows that Peterson Mechanical Inc mostly works on
hvac project
and mechanical project
projects.
Pricing
|
1 project
|
< $5k |
|
10 projects
|
$5k-$20k |
|
5 projects
|
$20k-$50k |
|
1 project
|
$100k-$250k |
|
1 project
|
$250k-$500k |
The typical size of their permits is approximately $16,050. 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.
Peterson Mechanical Inc Reviews
5 out of 5 stars, based on
1
review
-
By JamesMay 16, 2017Verified Hire
Building Permits by Peterson Mechanical Inc
This is a sample of this contractor's permits. Click here to access their complete permit history.
Provide and install (1) storage tanks per drawings provide and install (1) expansion tank per drawings install owner provided controller and fit out piping per drawings provide and install piping modifications of piping for (2) controllers and (2) new storage tank per drawings provide and install valves per drawing installation of pipe insulation on new piping to match existing provid... see more
Valuation:
N/A
Permit #:
B23-2539
Status:
final
Fee:
$139
Permit Type:
N/A
Building Type:
N/A
Provide and install (1) storage tanks per drawings provide and install (1) expansion tank per drawings install owner provided controller and fit out piping per drawings provide and install piping modifications of piping for (2) controllers and (2) new storage tank per drawings provide and install valves per drawing installation of pipe insulation on new piping to match existing provid... see more
Valuation:
N/A
Permit #:
B23-2537
Status:
final
Fee:
$139
Permit Type:
N/A
Building Type:
N/A
Replace like for like system - with mitsubishi m-series ducted split heat pump system. (1) mitsubishi 2.5 ton heat pump condenser m# suz-ka30na2.th (1) mitsubishi multi-positioned ducted heat pump fan coil m# svz-kp30na
Valuation:
N/A
Permit #:
BLD22-8611
Status:
final
Fee:
$305
Permit Type:
N/A
Building Type:
N/A
Replace existing with m-series variable heat pump split system: (1) mitsubishi 3-ton heat pump condenser m# suz-ka36na2.th (1) mitsubishi multi-positioned ducted heat pump fan coil m# svz-kp36na
Valuation:
N/A
Permit #:
BLD23-0762
Status:
final
Fee:
$305
Permit Type:
N/A
Building Type:
N/A
Provide and install (1) laars boiler model# mt2v0200nacc35n to match existing provide and install new hw s&r piping and gas from (e) valves to new unit as needed insulate new piping to match (e) as needed provide new 36” flue piping with weather cap off new boiler
Valuation:
N/A
Permit #:
B22-2138
Status:
final
Fee:
$138
Permit Type:
N/A
Building Type:
N/A
Replace (2) packaged air conditioning units (ac-f19 ac-f28) and associated vvt system which serve the viavi building f low bay and replace (1) exhaust fan (ef-f141) which serves the viavi building f high bay. revision approved 11.3.21
Valuation:
N/A
Permit #:
B21-6516
Status:
final
Fee:
$1,109
Permit Type:
N/A
Building Type:
N/A
Installing 3 multi split heat pump systems (hp1 = 2 ducted fan coils; hp2 = 3 ducted fan coils; hp3 = 2 ducted fan coils). 1 package heat pump unit; 1 central split heat pump
Valuation:
N/A
Permit #:
PM20240701645
Status:
expired
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Reuse and rebalancing (1) utility set exhaust fan with new sheet metal exhaust ductwork connecting to a vacuum pump serving viavi building f sem room. power to the exhaust fan and sem equipment
Valuation:
$30,000
Permit #:
B23-4947
Status:
final
Fee:
$390
Permit Type:
N/A
Building Type:
N/A
Replace (e) hydronic boiler system and domestic hot water
Valuation:
$405,898
Permit #:
BP23-0075
Status:
final
Fee:
$11,830
Permit Type:
Equipement
Building Type:
N/A
Install piping from new chiller to existing equipment install a fan and required ductwork for plasma etch tool. anchorage and foundation permit under b20-6500
Valuation:
$75,000
Permit #:
B21-3255
Status:
final
Fee:
$405
Permit Type:
N/A
Building Type:
N/A
Sfd-replace downstairs furnace with carrier performance series 95.0% efficient two stage furnace with non-communicating pulse width modulating high efficient ecm motor and two stage gas valve
Valuation:
N/A
Permit #:
BLD17-0218
Status:
final
Fee:
$83
Permit Type:
N/A
Building Type:
N/A
Demolition and replacement of existing gravity drain process waste stream piping to the facility waste treatment plant utilized for neutralization prior to discharge to the potw. two new waste treatment tanks will be installed three existing waste treatment tanks will be removed
Valuation:
$5,200,000
Permit #:
B14-4441
Status:
final
Fee:
$5,709
Permit Type:
N/A
Building Type:
N/A
Replace existing furnace with bryant packaged gas/electric unit
Valuation:
N/A
Permit #:
BLD25-0396
Status:
final
Fee:
$364
Permit Type:
N/A
Building Type:
N/A
Replace existing with carrier comfort ultra low nox furnace
Valuation:
N/A
Permit #:
BLD25-0637
Status:
final
Fee:
$364
Permit Type:
N/A
Building Type:
N/A
Replace air handler & heat pump condenser with ductless
Valuation:
N/A
Permit #:
M2506-0028
Status:
final
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Replace existing with mitsubishi heat pump system
Valuation:
N/A
Permit #:
B25-0607
Status:
final
Fee:
$409
Permit Type:
N/A
Building Type:
N/A
Heating ventilation and air conditioning replacement (hvac)
2025-01-31
Heating and air conditioning second dwelling
Valuation:
$12,200
Permit #:
BR25-00163-HVC
Status:
final
Fee:
$301
Permit Type:
N/A
Building Type:
N/A
Replace existing air conditioning with carrier comfort series 14 seer rated efficient air conditioning system
Valuation:
N/A
Permit #:
BLD23-4083
Status:
final
Fee:
$305
Permit Type:
N/A
Building Type:
N/A
1. replace existing with carrier performance 16 seer air conditioning system 2. replace existing with carrier comfort 95% single stage gas furnace
Valuation:
N/A
Permit #:
BLD22-5567
Status:
final
Fee:
$305
Permit Type:
N/A
Building Type:
N/A
Replace (1) rooftop unit c2 packaged unit with carrier 6 ton gas/electric remote terminal unit and install (1) economizer and (1) vfd on supply fan motors. new unit is a direct replacement mounted directly on existing curb and ductwork drops will remain the same
Valuation:
N/A
Permit #:
B20-5650
Status:
final
Fee:
$157
Permit Type:
N/A
Building Type:
N/A
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Verified License
BuildZoom confirmed this contractor's license
Peterson Mechanical Inc License info
Verified License
| License # | 171486 |
| Status | Active |
| State | California |
| Type | Warm Air Heating, Ventilating And Air Conditioning, General Building, Fire Protection, Plumbing, Refrigeration, Sanitation System, Sheet Metal, Boiler, Hot Water Heating And Steam Fitting, Pipeline |
| Business Type | Corporation |
- BuildZoom verified this license was active as of May 2026.
Verify this license's status for Peterson Mechanical Inc at the California Contractors State License Board.
This is a sample of licensing data; click here to access a complete history.
115
BuildZoom Score
Bonded
| Bonded Agent | American Contractors Indemnity Company |
| Bond Value | $15,000 |
Insured
| Workers Comp Provider | Old Republic Insurance Company |
512
Permits
- Building permit records show that Peterson Mechanical Inc has worked on 512 permitted projects.
Peterson Mechanical Inc Employees
LP
Les Manning Peterson
Ceo/President
MT
Michael Alden Titchenal
Officer
PP
Peggy Ann Peterson
Officer
RP
Richard Walter Peterson
Rmo/Ceo/Pres
SP
Scott Richard Peterson
Officer
ZB
Zachary Roussell Brandner
Ceo / President
We will gladly recommend Petersen's for heating and cooling replacement and or repair. From estimating the job, scheduling the work and project completion, we are completely satisfied.