At A+ M&P Design, we provide comprehensive mechanical & plumbing (M&P) engineering services that bring comfort, efficiency, and precision to every project. From HVAC and plumbing system design to advanced VDC/BIM coordination, our solutions are built on real-world insight, technical expertise, and proactive collaboration. Whether it's a residential build, commercial space, or mixed-use development, we design systems that meet performance goals, support sustainability, and integrate seamlessly into your project's vision.

We specialize in HVAC system design tailored for comfort, energy, efficiency, and operational performance. Our services cover everything from initial load calculations to detailed duct layouts and custom system designs that meet code, budget, and user needs.

• HVAC systems design
• Load calculations
• Duct layout and sizing
• Equipment schedules
• Secondary system design

• Central systems
• Split / Inverter systems
• Heating systems
• Ventilation and purge systems
• Net zero and LEED-compliant solutions

We provide full-service plumbing and engineering for residential and commercial projects, including water, gas, and wastewater systems. Our designs are efficient, code-compliant, and tailored to each building's specific use case and layout.

• Plumbing system design
• Domestic hot and cold water
• Natural and LP gas systems
• Isometric layouts
• Wastewater and grey water systems

• Sanitary and storm drain systems
• Fixture specifications
• Swimming pool layout
• Piping calculations and design
• Septic system design

Our Virtual Design and Construction (VDC) and Building Information Modeling (BIM) services go beyond software—we focus on people, proactive collaboration, and practical construction insight.

We deliver precision-driven coordination that improves constructability, minimizes conflicts, and enhances project timelines. Whether integrated early or post-design, our VDC/BIM approach promotes smarter workflows and measurable cost savings.

• Clash Detection & early conflict resolution
• Constructability feedback & value engineering
• BIM coordination across trades
• Integrated workflows for real-time collaboration
• Cost/time savings through improved planning