Commercial & Residential HVAC Duct/System Design Services in Florida

Proper configuration of your air conditioning system is essential to achieving long-lasting comfort, energy efficiency, and reliable performance. At Calcs-Plus, we provide professional HVAC system designs for both residential and commercial projects, ensuring balanced airflow and consistent comfort throughout every space.

We have been Florida builders’ trusted source for HVAC load and energy calculations since 1991, but our partnership with you doesn’t have to stop there. Using industry-standard ACCA methods, we deliver professional HVAC duct and system designs for light commercial buildings, single-family homes, and multi-family buildings throughout the state. determine your building’s specific heating and cooling requirements. Based on these calculations, we carefully select HVAC equipment that meets those demands while complying with energy efficiency codes.

How We Create HVAC Duct & System Designs

Calculations are the foundation of everything we do at Calcs-Plus, and our HVAC duct/system design service is no exception. In fact, we use three ACCA manuals to determine the best equipment and the best approach for your building’s HVAC system to be able to meet your needs.

Manual J® HVAC Load Calculations

Proper sizing of the air delivery system is one of the most important parts of your air conditioning system. This allows for proper air flow throughout your entire business or residence. We’ll determine the proper size for your HVAC system with Manual J HVAC load calculations using CHVAC software.

Manual S® Equipment Selection

Your HVAC equipment needs to be a perfect match for the building’s latent and sensible requirements. Manual S calculations help us to identify the right equipment by comparing it to your building’s Manual J load calculations and other design conditions, which will tell us what the size of the HVAC equipment should be.

Manual D® Duct Sizing & Design

Lastly, the size and design of the ducts will be determined by Manual D calculations. These take the data gained from the Manual J and S calculations and are used to determine how heating and cooling should be distributed throughout each room in a home or light commercial building.

Once we’ve completed these calculations, we then create a detailed, construction-ready plan that clearly illustrates duct layouts, air outlet locations, equipment selections, and precise sizing details—everything your builder, architect, or contractor needs for smooth, accurate installation.

Connect With Us

Interested in working with Calcs-Plus for HVAC duct and system design services in Florida? Fill out our calcs form to get started, and contact us with any more questions.

Helping Your Project,Move From Plans to PermitsContact Us Today
Five-Star Reviews

What Our Clients Are Saying

"Integer posuere erat a ante venenatis dapibus posuere velit aliquet. Nullam id dolor id nibh ultricies vehicula ut id elit. Nullam id dolor id nibh ultricies vehicula ut id elit. Nullam id dolor id nibh ultricies vehicula ut id elit. Curabitur blandit tempus porttitor."

Paul Smith

Tampa, FL

"Integer posuere erat a ante venenatis dapibus posuere velit aliquet. Fusce dapibus, tellus ac cursus commodo, tortor mauris condimentum nibh, ut fermentum massa justo sit amet risus. Cum sociis natoque penatibus et magnis dis parturient montes, nascetur ridiculus mus. "

Paul Smith

Tampa, FL

"Lorem ipsum dolor sit amet, consectetur adipiscing elit. Suspendisse varius enim in eros elementum tristique. Duis cursus, mi quis viverra ornare, eros dolor interdum nulla, ut commodo diam libero vitae erat."

Paul Smith

Tampa, FL