MEP Engineering Firm in California

Engineous Group Inc. (EGI) is a California based MEP engineering and design firm with more than 35 years of experience serving developers, owners, architects, and general contractors throughout the state. Based in Pasadena, EGI has delivered mechanical, electrical, plumbing, fire protection, and solar engineering for projects that stretch from San Diego to the Bay Area, and from the Central Coast to the Inland Empire. This page is the starting point for anyone looking for a California MEP engineer: an overview of what EGI does, where the firm works, and links to the regional pages that cover each part of the state in more detail.

Working from a single Pasadena office rather than a network of branch locations, EGI has built a project history that covers nearly every major market in the state. That structure keeps design teams consistent from project to project, while still giving clients on the ground local knowledge of jurisdictions, utilities, and permitting offices from San Diego County to the North Bay. Developers and architects who need one MEP engineering partner for a portfolio spanning multiple California regions, rather than coordinating separate firms in each market, are the audience this page is built for.

MEP Engineering Services

EGI provides five core engineering services on projects of every scale and building type:

• Mechanical (HVAC): heating, ventilation, and air conditioning design for new construction, renovation, and tenant improvement projects.
• Electrical: power distribution, lighting, and electrical systems design coordinated with architectural and structural teams.
• Plumbing: domestic water, sanitary, storm drainage, and gas system design.
• Fire Protection: fire suppression system design coordinated with local jurisdictions and code requirements.
• Solar / PV: photovoltaic system design integrated with a building’s electrical and mechanical infrastructure.

Across these five services, EGI’s engineers regularly work within California’s Title 24 energy code, manage local permitting and plan check processes statewide, and bring project experience with OSHPD/HCAI healthcare facility requirements, Prop 39 school HVAC upgrades, seismic considerations, and energy efficiency strategies. This expertise is applied within the five services above rather than sold as separate offerings.

California’s regulatory environment varies by jurisdiction: a plan check process in Los Angeles County looks different from one in the Bay Area, and Title 24 documentation requirements can shift depending on climate zone and building type. EGI’s engineers work these details on a regular basis, which shortens the back and forth between design submittal and approval. On healthcare projects, that means understanding OSHPD/HCAI review from the outset rather than treating it as an add on step. On school projects, it means designing HVAC replacements that meet Prop 39 energy savings requirements without disrupting an active campus. That code and permitting knowledge is built into every mechanical, electrical, plumbing, fire protection, and solar engagement EGI takes on, statewide.

Where We Work in California

EGI is licensed and active across California. Each region below has its own dedicated page with local project examples and contact information.

• Los Angeles: MEP engineering for retail, healthcare, senior living, hospitality, and municipal projects across Los Angeles County.
• Orange County: mechanical, electrical, plumbing, fire protection, and solar design for schools, retail centers, and commercial buildings in Orange County.
• San Diego: MEP engineering serving San Diego County, including retail and healthcare projects in the North County and Chula Vista areas.
• Inland Empire: engineering support for hospitality, retail, and commercial development in Riverside and San Bernardino counties.
• Ventura & Santa Barbara (Central Coast): MEP design for senior living, healthcare, and commercial projects along the Central Coast, including Solvang and Santa Barbara.
• Bay Area: mechanical, electrical, plumbing, fire protection, and solar engineering for retail, hospitality, and senior living projects in the greater Bay Area.

If you are not sure which region applies to your project, or your project spans multiple regions, contact EGI directly and the team will point you in the right direction.

Statewide Experience

EGI’s project history reflects the geographic reach of a statewide practice, organized here by sector.

Retail: EGI has provided MEP engineering for Westfield shopping centers in Culver City (Los Angeles), Santa Ana (MainPlace, Orange County), Escondido (North County, San Diego), and San Jose (Valley Fair, Bay Area).

Education: EGI completed Prop 39 HVAC upgrade projects for Santa Ana Unified School District in Orange County.

Senior / Assisted Living: EGI has designed MEP systems for assisted living facilities in Van Nuys, Morgan Hill, Nipomo, and Solvang.

Hospitality: EGI’s hotel projects span Corona, Moreno Valley, Napa, Palo Alto, Fresno, and Sacramento.

Healthcare: EGI has engineered healthcare and dialysis clinic projects in Chula Vista and Santa Barbara.

Municipal and Historic: EGI’s work includes Pasadena City Hall along with historical building projects in Long Beach and Los Angeles.

Sectors We Serve

• Retail and malls
• Education and Prop 39 school HVAC
• Senior and assisted living
• Healthcare
• Hospitality
• Office
• Municipal and government
• Multifamily and mixed use

These sectors call for different priorities. Retail and mall projects often involve phased renovations that must keep neighboring tenants operating. Education projects, particularly Prop 39 work, require coordination around academic calendars and occupied classrooms. Senior living and healthcare projects carry stricter code requirements around air quality, redundancy, and life safety systems. Hospitality projects balance guest comfort with energy efficiency across large, mixed use footprints. EGI’s engineers bring sector specific experience to each of these building types, informed by decades of repeat work with developers and architects across California.

Beyond California

While EGI’s primary focus is California, the firm is licensed and available for select projects in other states when the fit is right. EGI has past project experience in Nevada, and evaluates out of state opportunities on a case by case basis. Prospective clients outside California are welcome to reach out to discuss a project.

“A well-qualified regional expert, collaborating with us on various-scale projects throughout California and the greater Southwest.” — Jim Glina, Architects Orange, LLP

Frequently Asked Questions

What areas of California does EGI serve?

EGI serves the entire state from its Pasadena headquarters, with regional pages covering Los Angeles, Orange County, San Diego, the Inland Empire, Ventura and Santa Barbara, and the Bay Area. Project experience also extends to the Central Valley and other parts of the state.

What MEP services does EGI provide?

EGI provides mechanical (HVAC), electrical, plumbing, fire protection, and solar/PV engineering, along with related expertise in Title 24 compliance, permitting, OSHPD/HCAI healthcare requirements, and Prop 39 school HVAC projects.

Does EGI work on healthcare and school projects?

Yes. EGI has direct experience with OSHPD/HCAI regulated healthcare facilities and has completed Prop 39 HVAC upgrade projects for school districts, including Santa Ana Unified School District.

Does EGI take on projects outside California?

Selectively, yes. EGI is licensed for out of state work and has completed past projects in Nevada. California remains the firm’s primary service area.

To discuss an MEP engineering project anywhere in California, contact Engineous Group or call (626) 696-3850.