TrueCADD’s HVAC design experts understand the importance of energy-efficient and code-compliant systems, whether it is residential or commercial HVAC design. With more than 1,000 projects under their belt, our team of engineers and 200+ Revit certified experts provide comprehensive HVAC design services, ensuring optimal HVAC system design from concept to completion.
Our team specializes in creating air conditioning designs with highly accurate cooling and heating load calculation for optimal indoor air quality and thermal comfort. Besides HVAC load calculation, our design engineers ensure precise HVAC pipe sizing in ductwork design and streamline your construction projects with detailed HVAC manual calculations (Manual J, N, S, T, D) combined with 3D modeling and BOQ generation. TrueCADD is your trusted partner for BIM HVAC design services and system design support, with an aim to provide efficient, sustainable and code compliant designs and 3D HVAC models.




Manual J
Residential Calculations
Manual N
Light Commercial
Manual S
System Design
Manual T
Air Distribution Basics
Manual D
Residential Duct Design
Accurate and detailed analysis of cooling and heating loads for building space with factors like insulation, ventilation, and occupancy. This supports the sizing of HVAC equipment.
Specific HVAC equipment selection based on load calculations, budget, and efficiency goals, including chillers, boilers, handlers, terminal units etc.
Precise ductwork and piping designs and layouts with detailed information about sizing for air and water distribution, ensuring efficient airflow as well as heat transfer.
Control systems design to regulate the operation of HVAC equipment including sensors, valves, dampers and thermostats, improving energy efficiency and comfort.
Simulation of HVAC system energy performance ensures efficiency improvements and compliance of energy codes. This reduces operating costs and carbon footprint.
Set of construction drawings and specifications for HVAC system design including schematics, floor plans, equipment schedules, and details improve bidding and construction.
The cost of HVAC design services varies depending on the project size, complexity, and specific requirements.
We offer customized HVAC designs and the timeline for completing and delivering an HVAC design depends on the project scope and complexity.
Yes, our HVAC designers understand your specific project needs, then create a customized design that meets your project requirements.
Our team of HVAC design experts calculate HVAC loads by first analyzing building orientation, checking the occupancy and climate conditions, as well as the internal heat gains. They use industry standard methods including ASHRAE procedures, Manual J, Manual N etc.
Although we offer customized solutions, our HVAC design process usually includes:
We follow all industry standards for creating HVAC designs such as ASHRAE, SMACNA, IECC, local building codes, as well as green building standards like LEED.
Yes, we use BIM-based HVAC design and create 3D HVAC models that offer 3D visualization, clash detection, precise quantity take offs, enhanced coordination. Our BIM-based deliverables offer better accuracy and improved project efficiency.
Need help on an ongoing basis?
We establish long term business relationships with clients and are committed to total customer satisfaction.