ELPI Engineering, Inc.
ELPI Engineering, Inc. is a consulting engineering firm with the capability of providing in-depth innovative quality consulting services that are based on the most current technologies available. We provide state-of-the-art designs and engineering services in mechanical engineering, process, oil and gas, energy, petrochemical, chemical, pharmaceutical, general industries, and power engineering fields.
Industries Served — Oil & Gas, Refining, Power, Commercial & Residential
ELPI Engineering serves a broad range of sectors — industrial, commercial, and residential — across California and Alaska. From oil & gas refineries and petrochemical plants to commercial buildings and residential developments, our licensed engineers deliver state-of-the-art designs tailored to each project's requirements.
MEP & Engineering Services in Orange County & Southern California
Headquartered in Seal Beach, CA, ELPI Engineering provides MEP, structural, process, and heat transfer engineering throughout Huntington Beach, Irvine, Long Beach, and the greater Southern California region — with PE-stamped drawings accepted for plan check in every California jurisdiction, plus Alaska.
Our Seal Beach headquarters sits at the county’s western edge, putting our engineers within easy reach of job sites, plan-check counters, and client offices across Orange County. From full mechanical, electrical, and plumbing design to structural evaluation and process work, PE-stamped drawings are prepared for projects throughout the county.
Long Beach borders our headquarters directly, and the South Bay industrial corridor that runs from Carson through Torrance and El Segundo is home to refineries and process facilities that rely on the firm’s P&ID, heat transfer, and fired heater engineering.
California P.E.-stamped drawings are prepared for projects statewide — from San Diego and the Inland Empire to the Central Valley and the Bay Area — coordinated through the local building department or agency where each project is submitted.
Registered professional engineers in Alaska, with particular focus on arctic and sub-arctic heat pump design and cold-climate system engineering for the state’s industrial and energy sectors.
Codes & Standards
Deliverables are prepared to the code and standard applicable to each project, including:
Engineering Projects
Our Core Disciplines
CA P.E. & Alaska PE registered — serving all of California and Alaska with PE-stamped engineering drawings, plan check coordination, and full-service consulting.
Frequently Asked Questions
Are ELPI Engineering’s engineers licensed in California and Alaska?
Yes. Our engineers are licensed Professional Engineers (P.E.) in both California and Alaska, and we provide PE-stamped drawings for plan check and permit approval in both states.
Do you provide MEP engineering in Huntington Beach, Irvine, and Long Beach?
Yes. From our Seal Beach headquarters we provide MEP engineering — HVAC design, heat pumps, heat pump water heaters, Title 24 compliance, electrical distribution, and plumbing design — for commercial, industrial, and residential projects throughout Huntington Beach, Irvine, Long Beach, Newport Beach, Costa Mesa, Anaheim, and greater Orange County and Los Angeles County.
What kinds of projects does ELPI Engineering take on?
Industrial, commercial, and residential work — from refineries, oil & gas facilities, and petrochemical, chemical, pharmaceutical, and power plants to commercial buildings and residential developments, across California and Alaska.
Do you design heat pumps for cold climates?
Yes. We design air-source and ground-source heat pump systems for California climates as well as arctic and sub-arctic heat pump engineering for Alaska.
How do I start a project with ELPI Engineering?
Call (562) 439-9000 or submit a project inquiry through the contact page. Every inquiry is reviewed by our engineering team, and consultations are available Monday through Friday, 8:00 AM to 5:00 PM Pacific.
Does ELPI Engineering serve refineries, chemical plants, and pharmaceutical facilities?
Yes. Our process and heat transfer engineering covers refinery units, petrochemical complexes, specialty chemical plants, and cGMP pharmaceutical manufacturing — including fired heaters, heat exchangers, vacuum systems, WFI systems, and clean steam design — throughout California and Alaska.
Where is ELPI Engineering located?
Our headquarters is in Seal Beach, California (P.O. Box 339, Seal Beach, CA 90740), serving clients throughout Southern California, statewide California, and Alaska.
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