The McDermott Group is a full service Mechanical Engineering and Energy Compliance Consulting firm made up of two distinct entities: McDermott Design and Valley Energy Consultants.   Established in 1985, we’ve been providing design services for the building industry for a quarter century.   Our innovative design solutions provide our clients with the best value in HVAC Design, Plumbing System Design and Energy Compliance Documentation for Comfortable, Reliable and Efficient buildings.   

          We think globally while designing locally for           eco-friendly and sustainable solutions.

McDermott Design offers Mechanical Engineering services including complete HVAC and Plumbing Analysis and Design.   We use the latest design tools to produce detailed construction documents to articulate the project design goals.

Valley Energy Consultants offers Energy Compliance Consulting for projects designed under the California Title 24 Energy Code as well as the Model Energy Code for jurisdictions outside of California.   We cover the full range of Energy Compliance Consulting services including Residential & Non-Residential compliance modeling, LEED Accreditation Analysis, and HERS Third Party Verification & Inspections.