Breen Design Group
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Mechanical Engineering Services
Comfort, Efficiency, and Control. Engineered from the Inside Out.
The mechanical systems within a building are what make it truly livable and functional. Heating, ventilation, air conditioning, energy management, and environmental controls all work together to create interior spaces that are comfortable, healthy, and efficient. At Breen Design Group, our mechanical engineering team designs these critical building systems with the same precision, integration, and forward-thinking approach that defines everything we do.

Comprehensive HVAC and Mechanical System Design

Our mechanical engineers are experienced in the full range of HVAC design, from straightforward heating and cooling systems to complex, large-scale central plant design involving chilled water, hot water, and ice-based energy storage systems. We design boiler plants, fuel storage and distribution systems, and central refrigeration infrastructure for projects of every size and complexity, always with an eye toward long-term performance, energy efficiency, and operational cost savings.
Building performance is at the core of our mechanical engineering practice. We conduct thorough energy consumption studies, existing system analyses, and engineering reviews that give owners and developers a clear picture of how their buildings are performing — and where meaningful improvements can be made. Our expertise in building retrofits allows us to modernize aging mechanical infrastructure, improving comfort and significantly reducing energy costs without requiring full system replacement.

​Specialized Systems for Demanding Environments

Beyond conventional commercial and residential applications, Breen Design Group's mechanical team has the specialized expertise to engineer systems for highly demanding environments. Our capabilities include clean room engineering, precision humidity control, smoke evacuation systems, and aerospace environmental systems, work that requires exacting standards and a deep understanding of both the technical requirements and the regulatory landscape.
We are well-versed in California Title 24 energy calculations and analysis, ensuring every mechanical system we design complies with the state's stringent energy code while supporting our clients' broader sustainability and net zero energy goals. Our team also designs and integrates energy management and control systems that give building operators real-time visibility and control over their mechanical infrastructure, a critical tool for reducing energy consumption and operating costs over the life of the building.
 
Our Mechanical Engineering Services Include:
  • Heating, Ventilation & Air Conditioning (HVAC)
  • Central Refrigeration Systems
  • Energy Storage — Ice, Chilled Water & Hot Water Systems
  • Boiler Plant Design
  • Fuel Storage and Distribution
  • Energy Management and Control Systems
  • Title 24 Calculations and Analysis
  • Engineering Reviews & Energy Consumption Studies
  • Existing System Analysis & Building Retrofits
  • Smoke Evacuation Controls
  • Clean Room Engineering
  • Humidity Control Systems
  • Aerospace Environmental Systems
Picture
Russ Johnson
Director of Mechanical Department
​[email protected]


Torrance Office

3825 Del Amo Blvd.
Torrance, CA 90503
T: 310.464.8404

© Copyright - Breen Design Group - 2001-

  • About Us
    • Our Firm
    • Philosophy
    • News
  • Services
    • Architecture
    • Building Systems >
      • Mechanical
      • Electrical
      • Plumbing
      • Fire Life Safety
    • Civil
    • Structural
  • PEOPLE
    • Senior Management Team
  • Projects
    • Architecture >
      • Residential
      • Education
      • Commerical
    • Net Zero Design
    • Housing & Mixed Use >
      • Senior Living
      • Adaptive Reuse
      • Conventional
      • Affordable
      • Mixed Use
      • LEED Design
    • Educational Facilities >
      • k-12 Projects
    • Commercial >
      • Tenant Improvements
      • Retail
      • Hotels
      • Restaurants
    • Parks & Recreation
    • Federal & Government
    • Commissioning
  • Careers
  • Contact Us