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Four disciplines. One coordinated design.
Mechanical, electrical, plumbing, fire protection and sustainability engineering — delivered in-house so the coordination happens before it reaches your contractor.
MEPF Services
Mechanical, electrical, plumbing, and fire protection are four distinct engineering disciplines, typically provided by separate consultants. At Khalifeh & Associates, all four disciplines are delivered in-house, allowing for comprehensive coordination and integration of building systems before drawings are issued for construction. This integrated approach helps identify and resolve conflicts early, reducing coordination issues during construction.
- Mechanical Engineering: Heating, ventilation, and air conditioning (HVAC) systems and mechanical ventilation.
- Electrical Engineering: Power distribution, telecommunications, fire alarm systems, lightning protection, electrical controls, and lighting design.
- Plumbing Engineering: Domestic water supply, sanitary waste and vent systems, and roof and stormwater drainage.
- Fire Protection Engineering: Fire sprinkler and standpipe systems, coordinated with the project's overall life-safety design.
- Multidisciplinary Coordination: Comprehensive coordination across all four engineering disciplines to identify and resolve conflicts early, minimize construction-phase issues, and deliver a fully integrated set of construction documents.
Title 24 Report & Energy Analysis
California's Building Energy Efficiency Standards, established in 1978 under Title 24, Part 6 of the California Code of Regulations, are updated periodically to reflect advances in energy efficiency, building technologies, and design practices. We stay current with each code cycle to help ensure your project meets applicable energy requirements from design through permitting.
- Title-24 compliance documentation and forms
- Whole-building energy modelling and analysis
- Envelope, mechanical and lighting compliance paths
- Support through plan check and any correction cycles
Heating, A/C & Ventilation Design
Heating, ventilation, and air conditioning (HVAC) systems play a critical role in maintaining indoor comfort, providing adequate ventilation, and supporting healthy indoor air quality. Because HVAC systems can account for a significant portion of a building's energy consumption, proper system selection, engineering, and design are essential to achieving long-term performance, energy efficiency, and operational reliability.
- Load Calculations & Equipment Sizing: Detailed heating and cooling load calculations to determine appropriate system capacities and equipment requirements.
- System Selection & Life-Cycle Analysis: Evaluation of HVAC system options based on energy efficiency, operating costs, maintenance requirements, and long-term performance.
- Ductwork & Piping Design: Engineered layouts for air distribution, refrigerant piping, and hydronic systems, coordinated with other building systems.
- Indoor Air Quality & Filtration: Ventilation strategies, filtration specifications, and system design to support indoor air quality and occupant comfort.
LEED Certification
Leadership in Energy and Environmental Design (LEED) is an internationally recognized green building certification program that evaluates building performance across key sustainability criteria, including energy efficiency, water conservation, greenhouse gas emissions reduction, and indoor environmental quality. Khalifeh & Associates brings extensive experience in sustainable building design and LEED certification, integrating high-performance mechanical, electrical, plumbing, and fire protection systems with project-specific sustainability objectives.
- LEED Credit Strategy & Certification Planning: Evaluation of applicable LEED credits, assessment of certification requirements, and development of strategies to support project sustainability goals and target certification levels.
- Energy & Water Performance Analysis: Engineering analysis of building energy consumption and water use to identify efficiency opportunities and support applicable LEED performance requirements.
- Technical Documentation & Submission Support: Preparation and coordination of engineering documentation, supporting calculations, and compliance information required for LEED certification submissions.
- Certification Level Support: Engineering strategies and technical coordination to support projects pursuing LEED Certified, Silver, Gold, or Platinum certification.
Electrical Engineering & Design
Khalifeh & Associates provides comprehensive electrical engineering and design services tailored to the technical requirements, operational objectives, and budgetary constraints of each project. Our approach emphasizes system reliability, energy efficiency, regulatory compliance, and coordination with other building disciplines. From preliminary design through construction documentation, we develop electrical systems that support building functionality, occupant safety, and long-term operational performance.
- Power Distribution & Single-Line Diagrams: Electrical load calculations, service and distribution system design, panel schedules, and single-line diagrams to support safe, reliable, and code-compliant power distribution.
- Lighting Design & Controls: Interior and exterior lighting design, lighting calculations, energy-efficient lighting strategies, and control systems designed to meet applicable energy code requirements and project performance criteria.
- Fire Alarm System Design: Design and coordination of fire alarm systems in accordance with applicable codes, standards, and project-specific life-safety requirements.
- Telecommunications & Low-Voltage Systems: Design of telecommunications infrastructure and associated low-voltage systems to support building connectivity, communications, and operational requirements.
Plumbing Design
Plumbing systems are integral to a building's functionality, public health, and long-term operational performance. Effective plumbing design requires detailed hydraulic analysis, appropriate system sizing, and coordination with architectural, structural, civil, and other building systems. Our plumbing engineers provide comprehensive design solutions for building interiors and site infrastructure, with an emphasis on code compliance, water conservation, system reliability, and operational efficiency.
- Domestic Water Supply & Distribution: Hydraulic calculations, demand assessments, pipe sizing, and distribution system design to provide reliable water delivery at appropriate flow rates and pressures.
- Sanitary Waste & Vent Systems: Design of sanitary drainage and vent piping systems to ensure effective wastewater conveyance, proper drainage performance, and compliance with applicable plumbing codes.
- Storm Drainage & Site Utilities: Design of roof drainage, stormwater conveyance, and associated plumbing infrastructure to support effective drainage and coordinate with site utility systems.
- Water Conservation & Efficiency: Integration of water-efficient plumbing fixtures, demand-reduction strategies, and water conservation technologies to minimize potable water consumption and support applicable sustainability requirements.
Fire Protection
Fire protection systems are essential to safeguarding building occupants, protecting property, and supporting compliance with applicable fire and life-safety regulations. Effective fire protection design requires careful evaluation of building occupancy, hazard classifications, water supply capacity, and system performance criteria. Our engineering team develops code-compliant fire protection designs tailored to each project's requirements, with an emphasis on system reliability, hydraulic performance, and coordination with the overall building design.
- Automatic Fire Sprinkler System Design: Design of automatic sprinkler systems based on applicable codes, occupancy classifications, hazard categories, and project-specific protection requirements.
- Hydraulic Calculations & Water Supply Analysis: Hydraulic calculations to evaluate system demand, available water supply, required flow rates, and residual pressures to support adequate sprinkler system performance.
- Standpipe & Fire Pump Systems: Design of standpipe systems and fire pump installations to meet applicable fire protection requirements and provide the necessary water flow and pressure.
- Authority Having Jurisdiction (AHJ) Coordination: Coordination with fire departments, building officials, and other applicable authorities to support plan review, code compliance, and the approval process.
Facilities System Design
Our experience spans a diverse range of facilities and industries, enabling us to deliver practical, cost-effective engineering solutions tailored to each project's unique requirements. By applying proven engineering principles and energy-efficient technologies, we help building owners optimize system performance, reduce operating costs, and improve the environments in which people live and work.
- Building Energy & Cost Analysis: Evaluation of existing building systems to identify opportunities for energy savings and operational cost reductions.
- Retrofit & System Replacement Strategies: Engineering solutions for upgrading existing systems to improve efficiency, reliability, and long-term performance.
- Ongoing Performance Optimization: Recommendations to enhance building efficiency, reduce energy consumption, and support sustainable operations over time.
Commissioning Services
Building commissioning is a systematic, quality-focused process for verifying and documenting that building systems are designed, installed, tested, and capable of operating in accordance with the owner's project requirements and design intent. Our commissioning services focus on evaluating system performance, identifying deficiencies, and verifying the proper operation and integration of energy-related building systems. Through structured testing, comprehensive documentation, and operational guidance, we help building owners achieve reliable system performance, energy efficiency, and long-term operational effectiveness.
- Systems Verification & Functional Performance Testing: Verification of equipment installation, system operation, control sequences, and functional performance to identify deficiencies and confirm compliance with established project requirements.
- Operations & Maintenance Documentation: Development and review of operating procedures, system documentation, and tailored training materials to support effective building operation and maintenance.
- Preventive & Predictive Maintenance Planning: Development of maintenance strategies to support equipment reliability, reduce operational disruptions, and extend service life.
- LEED & ASHRAE Compliance: Commissioning services performed in accordance with applicable LEED requirements, ASHRAE guidelines, and relevant industry standards.
Solar Design
Khalifeh & Associates provides engineering and design services for renewable energy systems, including solar photovoltaic (PV), solar thermal, and battery energy storage technologies. Our experience spans a range of installation types and project scales, from small residential systems to large-scale commercial applications and multi-site programs. We develop project-specific engineering solutions that address system performance, energy efficiency, integration with existing building infrastructure, and applicable code and regulatory requirements.
- Solar Photovoltaic (PV) Systems: Engineering and design for rooftop, canopy-mounted, and ground-mounted solar installations, including system layout and integration with building electrical infrastructure.
- Solar Thermal Systems: Design of solar thermal systems for domestic hot water generation and other applicable thermal energy applications.
- Battery Energy Storage Systems (BESS): Engineering and design coordination for battery storage systems, including integration with electrical distribution systems and associated energy infrastructure.
- Residential & Commercial Solar Programs: Engineering services for projects ranging from small residential installations to large commercial developments and multi-site implementation programs.
Before you send the drawings
The earlier we are involved, the more value we can provide. Bringing our engineering team in during schematic design allows us to coordinate systems efficiently, identify potential challenges early, and develop solutions that can improve constructability, energy performance, and overall project costs. Many of the most impactful opportunities for savings and efficiency are established before design development begins.
Yes. While our engineers are currently licensed in California, Nevada, Arizona, Colorado, and Washington, we routinely support projects throughout the United States. Depending on project requirements, we can obtain additional licenses, coordinate with local professionals, or provide engineering support tailored to the jurisdiction where the project is located.
Absolutely. Addressing plan check comments and agency review feedback is a standard part of our design process. With decades of experience working with municipalities, building departments, and regulatory agencies, we develop our drawings with code compliance and permit approval in mind. This approach helps minimize plan check correction cycles and supports a smoother path toward permit issuance.
We work on projects of all sizes and complexities, from custom single-family residences and multifamily housing developments to educational facilities, commercial buildings, civic projects, historic preservation work, and large-scale mixed-use developments. Our multidisciplinary MEPF engineering team is equipped to support projects ranging from small tenant improvements to complex, multi-building developments.
Yes. Commissioning can be provided as a standalone service or as part of a broader engineering engagement. Our commissioning services help verify that building systems are installed, tested, and operating as intended, supporting performance, energy efficiency, occupant comfort, and long-term reliability.
Tell us what you're building.
Send drawings, a scope, or just a description. We'll come back with the engineering scope your project actually needs and a fee to match.