Florida’s Go-To Experts for HVAC System & Duct Design, Load Calculations & Energy Compliance

Precision. Speed. Permit-Ready HVAC Solutions.

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Helping Your Project,Move From Plans to PermitsContact Us Today

Commercial & Residential HVAC Load & Energy Calculations & Services in Florida

At Calcs-Plus, we're committed to delivering top-quality HVAC load and energy calculations and services throughout the entire state of Florida. We pride ourselves on providing independent, unbiased solutions that ensure you receive the best results every time: accurate, code-compliant, permit-ready solutions that are built for approval. We’ve helped countless business owners and homeowners in the state since 1991 and have always stood behind our work. Choose us for a relationship that prioritizes your needs and delivers excellence every time.

Commercial Services

We use ACCA and ASHRAE guidelines for load calculation for commercial and light commercial buildings, as well as HVAC duct and system design services for light commercial buildings.

HVAC Load Calculations

Our residential HVAC load calculation services are based upon Manual J®, and this service is required by the State of Florida for all new residential buildings prior to permitting.

Energy Code Calculations

We use EnergyGauge software to determine whether newly built single- and multi-family homes are in compliance with local energy codes, and to plan prescriptive pathways when adding or renovating existing spaces.

HVAC Duct/System Design

The Calcs-Plus team can design a new HVAC duct system for your light commercial building or your home, ensuring proper air flow can be delivered to all areas of the building.

Blower Door Testing

This testing is crucial for measuring the airtightness of buildings, and it’s required in order to comply with Florida Energy Code and obtain a Certificate of Occupancy.

Duct Leakage Testing

After your blower door test, we can complete duct leakage testing to detect and address any leaks in your HVAC system’s air ducts that could reduce energy efficiency and indoor air quality.

Annual Energy Diagnostics

Having an annual energy calculation completed is necessary to estimate how much power is required to meet your building’s needs and to determine the correct sizing for solar or generator power systems.

Acoustics, Noise & Vibration Control

Calcs-Plus works with Vintec Acoustics to deliver acoustic services, noise and vibration control assessment and design, and electroacoustic system design services throughout the continental United States.

Why Choose Calcs-Plus?

Since 1991, the Calcs-Plus team has become known throughout Florida for our fast and accurate services, as well as our dedication to quality and excellence. Here are some reasons why you can feel comfortable choosing us:

Experience

Not only has Calcs-Plus been active since 1991, we were the state’s very first calculation company. We know how to design, think ahead, and get work approved.

Versatility

With thousands of residential and commercial projects completed, we know how to adapt designs for Florida’s climate zones, inspectors, and code requirements.

Licensing

Unlike most other calculation companies in Florida, Calcs-Plus is also a licensed, FBPE-registered engineering company that can offer signed and sealed mechanical plans.

Communication

Our in-depth understanding of HVAC systems and our vast experience communicating with contractors and builders have proven valuable to our clients in the field.

Our Promise

Our goal at Calcs-Plus is to foster enduring relationships with clients in Florida who share our dedication to quality and excellence. We understand that your home or business deserves the best, which is why we prioritize your satisfaction above all else. Your experience with us matters, and we are devoted to ensuring that every aspect of our service exceeds your expectations by following our core values:

  1. Accuracy Above All
  2. Integrity and Independence
  3. Responsiveness and Reliability
  4. Client Success is Our Success
  5. Expertise With Purpose
  6. Professionalism in Every Interaction
Five-Star Reviews

What Our Clients Are Saying

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Paul Smith

Tampa, FL

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Paul Smith

Tampa, FL

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Paul Smith

Tampa, FL

Permit-Ready HVAC Solutions