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Introducing Our Company

Why Choose ProCalcs?

ProCalcs addresses the needs of residential and commercial Builders, Architects,Engineers, HVAC Companies and Home Owners by delivering high quality results and flexible turnaround times.

A/C Duct Designs


  • Manual J – Residential Calculations
  • Manual N – Light Commercial
  • Manual S – System Design
  • Manual T – Air Distribution Basics
  • Manual D – Residential Duct Design
  • Load Calculations
  • Energy Calculations
  • Duct Design
  • HVAC Design
  • And More!

Complete Your Jobs


ProCalcs hasday turnarounds which allows you to eliminate delays and complete your jobs quicker.

Our Services

Manual J Calculations

Manual J Load Calcs – Determines the total amount of heat gained or lost externally or internally, residential homes.

Manual N Calculations

Determines the total amount of heat gained or lost externally or internally, in small to medium sizes commercial buildings.

HVAC for Contractors

ProCalcs calculations division is certified for duct design, test and balance, Manual D certified, and holds a class “A” license.


Choose US For Your HVAC Design Needs

Latest News

Boys & Girls Clubs Check ProCalcs Donates to BGC
ProCalcs Supports Gold Star Families
ProCalcs donates services to church

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Average rating:  
 1 reviews
by William H. Arthur IV on Blank Business Name
HVAC Calculation

We're really happy for finding Tom at ProCalcs and would certainly use him again. He is professional, knowledgeable, consistent and timely. I highly recommend ProCalcs for any HVAC calculation, design review or consult.