HVAC Load Calculations for Permits and Code Compliance Nationwide
Manual J, Manual D, and Manual S calculations for contractors, builders, architects, and homeowners across all 50 states.
Energy Efficient Products
Expert HVAC Design Services for Residential and Commercial Properties
Why Choose ProCalcs?
ProCalcs is a licensed and insured HVAC design company based in Port St. Lucie, Florida, specializing in Manual J load calculations, Manual D duct design, and Manual S equipment selection for residential and light commercial projects. All calculations are prepared to meet applicable energy code requirements and support permit approvals.
Services
OUR SERVICES
Complete HVAC design documentation for residential and light commercial projects — permit-ready and code-compliant
Manual J Calculations
Determines the total amount of heat gained or lost externally or internally in residential properties.
Manual D Calculations
The ANSI-recognized national standard for residential HVAC duct design will help you design a duct system in less time.
Manual S Calculations
Covers sizing strategies for all types of cooling and heating equipment, as well as how to use manufacturer’s performance data!
Manual N Calculations
Determines the total amount of heat gained or lost externally or internally, in small- to medium-sized commercial buildings.
Energy Code Compliance Calculations
REScheck and COMcheck energy compliance documentation for building permit approval.
HOW IT WORKS
WHO WE SERVE
HVAC Contractors
Permit-ready calculations and duct designs to support bids, installations, and building department approvals.
Builders and Developers
Complete HVAC design packages for residential and light commercial construction projects.
Architects and Engineers
Technical HVAC specifications and load calculations that integrate with building plans.
Homeowners
Independent load calculations and equipment recommendations for renovations and system replacements.
Find out how much you can save on your project!
"ProCalcs is fantastic! They did a full Manual J, Manual S, and Manual D on my residential new build near Columbus, Ohio. The entire staff was very professional and responded almost immediately. The duct design was done in record time."
"We switched to ProCalcs when our previous provider was backed up. ProCalcs is quick to respond, thorough, and even corrected errant findings from a Professional Engineer. Kudos for going above and beyond on all aspects of product delivery and customer service."
"Their staff treats each project professionally — from a small remodel to an 11,000 sq ft custom home. Results are well presented and delivered in a very timely manner. Highly recommend."
In a rush? Ask about our
Expedited Services*
*when available. Extra fees apply.
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