Careers at Peterson Mechanical Inc. | 100+ Years of Service
Bay Area Plumbing & Mechanical Contractor Since 1915

Our residential HVAC installers meet the needs of homes and businesses throughout Northern California.

Safety First
Peterson Mechanical 100 Years of Service

Careers at Peterson Mechanical Inc.

careers in sonoma county at peterson mechanical

Our Culture Current Positions (4) Think Safety
Equal Employment Highlight of Benefits ADA Compliance

The Peterson Mechanical Inc. Culture

Peterson Mechanical Inc. has been in the same family for over a century and that family-feel is at the core of everything we do. Employees enjoy working here. We are hard-working, but have fun doing so; it’s a supportive environment; it’s just the right size to get to know everybody, and make sure you don’t trip over our mascot dogs, Abby and Izzy!

We celebrate! There are picnics, parties, and BBQs. We share birthday wishes and welcome babies.

We promote an open-door policy. Our top management is visible, available, and genuinely interested in our employees.

Code of Excellence

hvac service contractors

  • The company is only as good as its employees. We mentor and grow our people for they are our greatest asset.
  • We are experts in our business. We solve problems. If we don’t know, we find out.
  • We have a “Can Do” attitude. We understand that if we don’t, our competitors will.
  • Employee safety is a top priority.
  • We promote our company every day by being responsive and working with our customers and GC’s as partners. Every job is a marketing opportunity for our entire company. (HVAC, Plumbing, Service)
  • We take pride in our Integrity, Work Ethic, and Craftsmanship.
  • We are one company and a team. We communicate, look-out for our fellow workers, and do what’s best for the company.
  • We take a proactive approach to our work. We plan our work, look at the result then plan some more.
  • All employees have equal value. We listen to our employees and respect differing opinions. We treat our peers with respect.
  • We are continuously improving ourselves and our company. We are creative and believe in progressive thinking.

Core Values

Excellence – Exceeding standards in every aspect of our business.

Innovative – Using creative ideas and cutting edge technology to deliver advanced solutions.

Integrity – Committing to principles of responsibility, reliability, and honesty.

Leadership – Standing at the forefront of our business and providing initiative in all we do.

Proactive – Anticipating required actions and responding with solutions.

Current Positions Available (4)


Pipe & Plumbing Purchasing Agent

Job Summary:

Researches, interviews, and negotiates with suppliers to obtain prices and specifications on materials and supplies. Expedite orders and ensure proper delivery. The position provides some routine administrative support. It requires a high school diploma or its equivalent and 2-4years of experience in the construction business. The Purchasing Agent relies on experience and judgment to plan and accomplish goals. Performs a variety of tasks and. The position works under general supervision.

Essential Duties & Responsibilities:

  • Receives and reviews requisitions requesting materials and supplies
  • Communicates with vendors to obtain product or service information, such as price, availability, and delivery schedules
  • Purchases by testing, observing, or examining items
  • Expedites orders and requests as needed
  • Estimates values according to knowledge of market price
  • Negotiates project material and equipment pricing
  • Determine the purchase process whether as direct purchase or bid
  • Creates and issues purchase orders for the acquisition of material
  • Procures materials or other goods and/or coordinates activities involved with purchasing products and services, equipment, tools, parts, and supplies for establishment
  • Ensures delivery of goods to users
  • Maintains procurement records, such as items or services purchased, costs, delivery, inventories
  • Discusses defective or unacceptable goods or services with inspection or quality control personnel professionally; determines source of trouble and takes corrective action
  • Tracks material and equipment returns/backorders
  • Manages and selects Equipment Rental companies
  • Reviews and approves invoices from generated purchase orders
  • Contributes to the Post-project Audit
  • Organizes and ships return merchandise
  • Manages shop inventory
  • Other duties as assigned

Non-Essential Job Duties:

  • Works with manufacturers or persuade potential manufacturers and distributors for the manufacturing of custom-designed items according to user’s specific needs and specifications
  • Keeps abreast of market trends, changes in business practices new or altered types of materials entering the market, etc.
  • Work autonomously, under general supervision
  • Provide routine administrative support
  • Other duties as assigned

Essential Qualifications:

  • Requires a high school diploma or its equivalent
  • 2-4 years of experience in the field or in a related trade or business
  • Familiar with standard concepts, practices, and procedures in the construction trade
  • Knowledge of pipe, fittings, parts, equipment and plumbing/HVAC piping construction
  • Relies on experience and judgment to plan and accomplish goals
  • Ability to negotiate with partners on terms and maintain positive and professional relationships
  • A certain degree of creativity and latitude is required
  • Professional appearance and demeanor
  • Customer service skills and abilities in-person, on the telephone and in email correspondence
  • Advanced typing and ten-key operation
  • Knowledge of software programs: MS Word, Excel, Outlook

Preferred Job Qualifications:

  • AA or BA from accredited university
  • Training on Maxwell and VISTA software systems
  • Advanced knowledge in the plumbing and/or HVAC trades

ADA Specifications:

Position requires sitting for prolonged periods and occasional standing and walking. Manual dexterity required for computer work. There is occasional lifting of up to 50 lbs. Office work environment with a moderate noise level. Reasonable accommodations will be made available.


Contracts Administrator

Job Summary:

The Contracts Administrator processes assigned contracts and subcontracts, administers construction contract billings, and supports service contracts administration. This position also performs accounts receivable collections for those contracts and administers the lien process. The position supports estimators and project managers with various administrative and compliance tasks as needed.

Essential Duties & Responsibilities:

Contracts Administration

  • Processes assigned company contracts and subcontracts.
  • Administers subcontracts, change orders, purchase orders and all accompanying documentation as approved by the applicable Project Manager or the Contracts Manager.
  • Enters job information, budgets, and reviews/closes projects in Vista or other job tracking system.
  • Requests certificates of insurance, completes miscellaneous insurance requirements, and orders bonds as requested. Submits OCIP insurance enrollments and completes administration.
  • Prepares, submits, and monitors all preliminary notices and lien releases.
  • Assists in the preparation of pre-qualifications.
  • Maintains organized electronic and paper files for assigned projects.
  • Prepares and submits Wage Equality Statements.
  • Prepares and submits DAS 140 and other labor compliance requirements.

Jobs & Billings Administration (Construction)

  • Opens and maintains job files.
  • Prepares and submits invoices and other billing forms utilizing a variety of methods and websites.
  • Creates time material (TM) and cost plus (CP) billings using applicable labor rates.
  • Enters, reconciles, and balances the Schedule of Values (SOV) provided by project managers.
  • Monitors and maintains accounts receivable (AR) aging including collections. Resolves AR problems or requests assistance from the project managers, Contracts Manager or Controller.
  • Performs other duties as assigned by the Contracts Manager or Controller.

Estimating & Project Support

  • Compiles and distributes the bidder’s list as assigned.
  • Assists in the preparation of bid packages as requested by estimators and project managers.
  • Provides administrative support as needed for the construction division.
  • Enters and maintains project details within various systems.

Non-Essential Job Duties:

  • Monitors certifications and licensing.
  • Creates, revises, and maintains forms.
  • Assists with mail pick-up, drop off and distribution as needed.
  • Performs errands as requested.

Essential Qualifications:

  • Highly organized with strong attention to detail.
  • Excellent communication skills (written and verbal)
  • Outstanding problem solving and analytical skills
  • High School Diploma or equivalent
  • Self-directed and motivated, timely and accurate
  • Working knowledge of MS Office programs and PDF markup/editing software
  • Team oriented, professional, and courteous demeanor
  • Ability to obtain or an active notary public commission

Preferred Job Qualifications:

  • Knowledge of construction software, Procore, and VISTA by Viewpoint
  • Associate or bachelor’s degree in construction management, business, finance, or related field
  • Knowledge of working with a union labor force, prevailing wage, wage equality, etc.
  • Valid driver’s license and clean driving record

ADA Specifications:

Position requires sitting for prolonged periods and occasional standing and walking. Manual dexterity required for computer work. There is occasional lifting of up to 25 lbs. Office work environment with a moderate noise level. Reasonable accommodations will be made.


Commercial HVAC Service Technician

Job Summary:

The Commercial HVAC Service Technician provides maintenance, repair and/or replacement of light commercial and large commercial customers’ heating, cooling, ventilation, refrigeration, and related systems.

Essential Duties & Responsibilities:

  • Repairs and maintains HVAC and refrigeration systems and any related components according to
    manufacturer’s specifications, including wiring, refrigerant lines, gas lines and ductwork.
  • Provides timely and quality repairs and maintenance of customers’ products.
  • Troubleshoots problems with equipment. Adjusts, cleans, and calibrates equipment to assure
    proper operations. Complete diagnosis and repair of the following:

    • 80 percent to 90 percent efficiency gas furnaces.
    • Air conditioning and heat pump condensers (single phase, 3 phase, 208/230, and 460 volts)
    • Gas/electrical packaged units (5 ton to 25 ton)
    • ECM variable speed motors
    • VFD (Variable Frequency Drive)
    • Compressor replacements
    • Large Motor Replacement
    • Super heat and sub-cooling
    • 20-50 Ton Packaged Boxcars
    • VRF system
    • Boilers
    • VAV’s
    • Pumps
    • Basic knowledge of controls
      • Carrier logic
      • Mitsubishi service tool
      • Daikin
      • VVT/Zone controls
  • Promotes additional products and services.
  • Advises customers on maintenance schedules.
  • Pre-measures jobs to ensure proper materials for repairs and maintenance.
  • Receives, verifies, and loads all equipment and materials for jobs.
  • Assures billing accurately reflects completed services. Prepares records and reports describing procedures, actions taken and recommended solutions.
  • Assures all work is completed to quality and safety specifications.
  • Provides training to customers on electronic control system operations as directed.
  • Assures customers’ locations are left clean and undamaged.
  • Provides technical assistance with system designs.
  • Responds to customer emergencies in a timely manner. Provides on-call service on weekends and holidays.
  • Maintains truck stock inventory.
  • Keeps truck clean and organized.
  • Other duties as assigned.

Non-Essential Job Duties:

  • May assist with system installations, replacements, and start-ups.

Essential Qualifications:

  • HS Diploma or equivalent.
  • 3-5 years experience in residential/light commercial HVAC field.
  • Ability to repair, replace, install, and set up computerized electronic components.
  • General knowledge of electrical trade.
  • Computer literacy in office communication programs.
  • Ability to effectively communicate with clients.
  • Strong attention to detail.
  • Demonstrated customer service skills.
  • Must have current driver’s license.
  • Must have appropriate hand tools.
  • Mechanical aptitude.

Preferred Job Qualifications:

  • Advanced training in construction trades/HVAC.
  • EPA and/or NATE certified.
  • Training and/or certifications in construction safety, forklift training, defensive driving, etc.
  • Advanced knowledge of construction industry.

ADA Specifications:

There is frequent bending, walking, carrying and lifting; some sitting for prolonged periods. Manual dexterity required for computer work. There is occasional lifting of up to 75 lbs. There will be exposure to confined spaces, such as, attics and roofs. Office and outdoor construction environments should be expected. Must be able to wear work boots and perform ladder work. It will require some exposure to cold, heat, weather, and sun. Work conditions include construction site noise level. Reasonable accommodations will be made available.

The Commercial HVAC Service Technician is a union position (Service Technician or Service Mechanic), covered under the Sheet Metal Workers Union


Shop Coordinator (Construction)

Job Summary:

The Shop Coordinator receives and documents deliveries for the HVAC, Plumbing and Service Departments. The Shop Coordinator maintains stock and supplies in the shop and yard. The position is also charged with secure lock down of the facility daily. Depending on workload, this position may also coordinate with other employees to accomplish the duties and responsibilities.

Essential Duties & Responsibilities:

Shipping & Receiving

  • Creates detailed material lists to maintain shop stock and submits to Purchasing
  • Receives materials and checks for accuracy; inspects and verifies, noting damages or shortages
  • Tags and stages items and materials
  • Receives and fills tool orders from Field or Fab Shop
  • Coordinates and maintains standards for tools; affixes identification on tools, ladders and toolboxes
  • Itemizes and processes returns; provides list to Purchasing for refunds
  • Maintains receiving records
  • Receives and stages UPS/FedEx deliveries
  • Moves and stages materials and equipment in the yard
  • Restocks returned tools, hardware and other stock items
  • Moves, stores and handles prefabricated items as directed by Fab Shop Foreman
  • Drives delivery truck with deliveries or pick-ups as a back-up
  • Serves as the direct contact for all deliveries to the Shop
  • Other duties as assigned


  • Supports delivery and yard truck maintenance and operational inspections; keeps cabs of delivery and yard trucks clean, inside and out
  • Performs daily inspection for forklift maintenance
  • Refuels delivery trucks
  • Maintains job boxes
  • Organizes yard; monitors and prepares for inclement weather
  • Performs yard clean-up; empties trash cans; disposes of dunnage and pallets; keeps supply areas neat and organized


  • Maintains company yard “5 S Program.” Updates company informational bulletin boards bi-monthly
  • Provides general housekeeping and maintenance
  • Maintains facility in organized and safe condition; creates storage areas for like items and label
  • Administers facility programs including, but not limited to: safety, emergency, fire, and lock-out tag-out
  • Maintains 8th Street East (both 21819 and 21800) fire protection system and rented fab shop
  • Acquires CUPA, Fire Marshal inspection/permit, propane tank and air compressor certifications
  • Manages weekly garbage/recycling redistribution
  • Manages contractors for landscaping, electrical modifications, recycling, fire pump and tank maintenance, exhaust fans, time clocks, well pump, vehicle repairs and maintenance
  • Assists with all site construction modifications
  • Oversees yard and building security, including gate access
  • Manages tool inventory
  • Acts as back-up for building shut down and lock up
  • Completes special projects and light construction as required
  • Other duties as assigned.

Other Duties

  • Assists with plumbing or HVAC shop fabrication when needed

Essential Qualifications:

  • HS diploma or equivalent
  • 1-3 years experience in a shop or warehouse position
  • General knowledge of the construction industry
  • Computer literacy in office communication programs: MS Word, Outlook, Tablet/iPad
  • Ability to effectively communicate with staff and suppliers
  • Strong attention to detail
  • Valid driver’s license with clean DMV record and ability to travel the Bay Area

Preferred Job Qualifications:

  • Training and/or certifications in construction safety, forklift training, defensive driving, etc.
  • Advances knowledge of construction industry
  • Mechanical aptitude

ADA Specifications:

Frequent bending, walking, carrying and lifting; some sitting for prolonged periods . Manual dexterity required for computer and programming work. Frequent lifting of up to 100 lbs. Driving. Office and outdoor construction environment. Must be able to wear work boots and perform ladder work. Some exposure to cold, heat, weather, sun. Construction site noise level. Reasonable accommodations will be made available.


Think Safety Mission Statement

Peterson Mechanical Inc. is committed to the safety and welfare of all our employees and the employees of the project team, through prevention, education, awareness, and strong safety culture. Our goal is to reduce workplace accidents with the ultimate goal of zero injuries and accidents.

Our efforts towards safety have allowed us to benefit from a low EMR Rate, always below 1.

Program Overview

Peterson Mechanical Inc.’s full-time Safety Coordinator, Dave Kimble, works to assure implementation of our comprehensive written safety program and to ensure that the company and its employees are in compliance with all OSHA regulations, Cal OSHA regulations, ANSI standards, and industry best practices.

Our Safety Coordinator has the following training: OSHA 511, 500, HAZWOPER, OSHA 10-30, First Aid, CPR, AED, Power Industrial Trucks Training, Confined Work Space Trainer, Respirator Use Trainer, Powder Actuated Tools, Man Lift Trainer, Certified Rigging and Signaling, Competent Person Trenching Certified, and ARC Flash Prevention. Notably, he also has over 10 years of practical experience.

Our Safety Program consists of the following: Injury and Illness Prevention Program (IIPP), Job Hazard Analysis (JHA), Accident Investigation, Heat Illness Prevention, Tool Box Training, Fall Protection Training, Hot Work Permits, and Code of Safe Work Practices.

Peterson Mechanical Inc.’s written safety program is under continuous review to ensure our policies and procedures reflect current safety standards, requirements, and industry best practices.

All of our Field Supervisors are OSHA 10 and 30 certified and receive continual training on our Safety Program.

Equal Employment Opportunity Statement

We’re an Equal Opportunity Employer & Prohibit Discrimination & Harassment of Any Kind

Peterson Mechanical Inc. upholds equal employment opportunity for all employees and provides employees with a work environment free of discrimination and harassment. All employment decisions at Peterson Mechanical Inc. are based on business needs, job requirements and individual qualifications, without regard to race, color, religion or belief, national, social or ethnic origin, sex (including pregnancy), age, physical, mental or sensory disability, HIV Status, sexual orientation, gender identity and/or expression, marital, civil union or domestic partnership status, past or present military service, family medical history or genetic information, family or parental status, or any other status protected by the laws or regulations in the locations where we operate. Peterson Mechanical Inc. will not tolerate discrimination or harassment based on any of these characteristics. Peterson Mechanical Inc. encourages applicants of all ages.

Highlight of Benefits

peterson mechanical staffWe offer a competitive benefits package:

Group Medical Insurance

  • Company pays 80% of monthly bronze premium per respective plan
  • Choose from several Blue Shield, Western Health Advantage or Kaiser plans

Group Dental Insurance

  • Company pays 100% of employee monthly premium
  • Current carrier is Cypress Dental

Dependent Insurance

  • Employees may add dependents to group plan coverage
  • Company pays 60% of monthly bronze premium per respective plan

having fun at peterson mechanical in sonoma

Long Term Disability

  • Company pays 100% of premium
  • Supplements the State Disability Plan
  • Salary continuance at 60% up to $5,000 per month


  • Company match: 100% of employee’s contribution up to 3% of compensation plus 50% match on contributions from 3% to 5% of compensation (excludes bonuses)
  • Match is made annually on a one-time basis
  • Choice of Mass Mutual self-directed investment options; includes a fixed investment option with a 3% guarantee
  • Match is made annually on a one-time basis, no later than June 15th of the following year


  • Discretionary contribution to 401K plan of 7 to 15 % of employee compensation (excludes bonuses)
  • Match is made annually on a one-time basis, no later than June 15th of the following year

Voluntary Benefits

  • Employees can choose Critical Care Insurance, Hospital Coverage, Cancer and Accident Insurance, Whole or Term Life. A Long Term Care rider is available. Vision insurance is offered through VSP.

Employee Assistance Program

  • Referral based benefit for situations such as legal, financial, and substance abuse assistance.

PTO (Personal Time Off)

  • 9 to 18 days per year based on years of service

Paid Holidays

  • 10 paid holidays per calendar year

Americans with Disabilities Act Compliance Statement

Peterson Mechanical Inc. is committed to compliance with the Americans with Disabilities Act (ADA) which prohibits the discrimination of qualified individuals with disabilities who can perform the essential functions of the job with or without reasonable accommodation.

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