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Plumbing Systems Design

Our designs are based on providing sound sanitary plumbing systems while still utilizing water efficient fixures. This helps to minimize the overall impact on the local enviroment.

Building Energy Assessment

PEI will conduct a thorough accounting of existing utilities on renovation projects and review utility cost impact on new projects in order to design the most cost efficient systems.

HVAC Systems Design

Our goal is to provide thermal and humidity comfort and to maintain good indoor air quality while impacting the local environment as little as possible.

Engineering Economics

PEI will perform ‘life cycle’ cost analysis of major equipment components. This will assist a client realize the length of ‘pay-back’ on their investment.

Fire Protection Systems Design

PEI is able to provide a complete automatic fire sprinkler design based on the latest edition of NFPA 13.

Construction Administration

PEI provides a complete service including but not limited to review of project submittals, responding to RFI’s, issuing Bulletins as necessary and performing job site field visits including a final punch walk of the project.

Energy Management Systems (EMS) Design

Design facilities management systems that seamlessly connect devices other than HVAC throughout a project if desired including plumbing equipment, lighting and security devices.

Building Information Modeling (BIM)

PEI provides a complete package of required information modeling for review by clients and or other design team consultants.

Needs Assessment

PEI will conduct a thorough site visit which includes investigation of the HVAC and Plumbing systems in order for a client to make sound fiscal decisions on whether to replace or maintain existing equipment, thus assuring that money is being well spent.



Pezeshki Engineering, Inc. (PEI) is a full-service, multi-disciplined, consulting engineering and design firm providing a diverse range of engineering services nationwide. Our culture and success have been client driven and focused on creating long-term, mutually rewarding relationships founded on uncompromised service, superior performance and dependability. 

Our proven ability to perform successfully in a variety of markets and our broad technical skills in Mechanical, Plumbing and Fire Protection (MP/FP) engineering and design have combined to enable us to provide a comprehensive range of engineering services in support of our clients respective goals from conceptual design to final occupancy and beyond.  

Our market sectors include the following types of facilities:
  • Commercial

  • Corporate

  • Retail

  • Restaurants

  • Hospitality

  • K-12 Education

  • Universities

  • Entertainment

  • Healthcare

  • Mission Critical

  • Government

  • Municipal

  • Civic

  • Military

Managers with specialized services in the following areas of expertise:
  • Master Planning

  • Energy Management Feasibility Studies

  • Commissioning

  • Retro-Commissioning

  • Energy Modeling

  • Renewable Energy Systems Studies

  • Site Surveys and Assessments

  • Lighting Studies

  • Energy Audits

Leadership in Energy and Environmental Design (LEED®) Design and Certification

In addition to providing the traditional MP/FP Engineering and Design services for new construction projects and major renovations, Pezeshki Engineering, Inc. also provides direct support to facility managers and building owners. 

Our success and continued growth within these diverse markets and services has been the direct result of an unwavering dedication to our clients, our commitment to providing a measurable and distinguishable added value to the projects on which we serve and a passion for our profession.


At Pezeshki Engineering, Inc. our business philosophy and fundamental strategy for success is not based on attracting new clients but, more importantly, on earning and retaining the trust, loyalty and commitment of our existing clients. We look forward to demonstrating our capabilities and belief in our core values as part of your team.


Schools - K thru 12
  • Bellflower USD

  • Buellton USD

  • Carlsbad USD

  • College SD - Santa Ynez, CA

  • Conejo Valley USD, Thousand Oaks, CA

  • Downey USD

  • El Monte City SD

  • Glendale USD

  • Hemet USD

  • Irvine USD

  • Lake Elsinore USD

  • Los Angeles USD

  • Lynwood USD

  • Montebello USD

  • Orange USD

  • Placentia/Yorba Linda USD

  • Redondo Beach USD

  • Rim of the World USD - Lake Arrowhead, CA

  • Saddleback Valley USD - Mission Viejo, CA

  • Santa Ana USD

  • Santa Barbara USD

  • Sierra Sands USD - Ridgecrest, CA

  • Solvang Elementary SD

  • Temecula Valley USD

  • Torrance USD

Aircraft Hangars
  • Fullerton Municipal Airport - Fullerton, CA

  • Phoenix Sky Harbor International

      Airport - Phoenix, AZ

  • California Institute of Technology  Pasadena, CA

  • California State University San Marcos, CA

  • Citrus College - Glendora, CA

  • College of the Canyons - Santa Clarita, CA

  • College of the Desert - Palm Desert, CA

  • Cypress College - Cypress, CA

  • Fullerton College - Fullerton, CA

  • Goldenwest College - Huntington

       Beach, CA

  • Long Beach City College - Long Beach, CA

  • MiraCosta College - Oceanside, CA

  • Mt. San Antonio College - Walnut, CA

  • Orange Coast College - Costa Mesa, CA

  • Palomar College - San Marcos, CA

  • Rio Hondo College - Whittier, CA

  • Riverside City College - Riverside, CA

  • Santa Ana College - Santa Ana, CA

  • Southwestern College - Chula Vista, CA

  • University of California San Diego, CA

  • Vanguard University - Costa Mesa, CA

Government Facilities
  • Fire Stations

  • Hemet Service Center - Hemet, CA

  • La Mirada Sheriff Station - La Mirada, CA

  • Madera County Government Center -

      Madera, CA

  • Westminster Chamber of Commerce -

      Westminster, CA

  • Wilshire Federal Building - Los Angeles, CA

  • Marine Corps Air Ground Combat Center -Twentynine Palms, CA

  • Naval Air Facility - El Centro, CA

  • March Joint Air Reserve Base - Riverside County, CA

  • Naval Air Station - Lemoore, CA

  • Francis E. Warren Air Force Base -

      Cheyenne, WY

  • U.S. Naval Construction Battalion Center -Pt. Hueneme, CA

  • Marine Corps Base - Camp Pendleton, CA

  • Navy Weapons Station - Seal Beach, CA

  • Caremore Medical Offices

  • Madison Plaza Medical Office Building - 

      Riverside, CA

  • Parkside Medical Office Building -

      San Jacinto, CA

  • Popular Medical Office Building -

      Santa Ana, CA

  • San Bernardino Medical Group Offices -Fontana, CA

  • Shops at Sierra Lakes Medical Office Building - Fontana, CA

  • Carson Park - Carson, CA

  • Cerritos Park - Cerritos, CA

  • La Mirada Splash - La Mirada, CA

  • Lakeview Park - Santa Fe Springs, CA

Office Buildings
  • Byco Office Building - Newport Beach, CA

  • Lobel Financial Office BuildingAnaheim, CA

  • Lockheed Federal Credit Union - Thousand Oaks, CA




Costa Mesa, CA.



Matthew Pezeshki, P.E., CEM, LEED® AP

Mr. Pezeshki is the senior principal and has been a professional engineering consultant for over 20 years. His project portfolio covers a wide market with prestigious institutions within the commercial, health care, hospitality, municipal, educational and retail sectors. As a Certified Energy Manager (CEM) with well over 200 projects completed to date and a LEED® Accredited Professional, his expertise is much sought after today by state and local government agencies, utility companies, commercial developers and private owners wishing to develop cost effective and energy conscious projects.          

California State University - Los Angeles, Bachelor of Science in Mechanical Engineering – 1991   

Registrations and Professional Affiliations:
State Of California – Mechanical Engineer No. M29925 (Registered in Multiple States – Listing Upon Request)
Certified Energy Manager (CEM)
Leadership in Energy and Environmental Design (LEED®) Accredited Professional – LEED®



For any inquiries, questions or commendations, please call: (714) 884-3803 or fill out the following form


Office Address

1920 E. Warner Ave, Suite 3-H

Santa Ana, CA 92705

Tel: (714) 884-3803

Fax: (714) 884-3834

Office Hours

Mon-Thurs: 7:30 am to 5:30 pm

Friday: 7:30 am to 11:30 am

Pezeshki Engineering, Inc Mechanical and Plumbing Engineers.
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