HVAC permit packages

Complete HVAC documentation for permitting and code compliance

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RunBrook provides HVAC permit packages to help builders, contractors, developers, and project teams submit clear, accurate documentation for mechanical permitting. Our team prepares the calculations and supporting documents needed to show that HVAC systems are properly sized, designed, and aligned with applicable code requirements.

Whether your project includes a single-family home, multifamily development, production home community, renovation, or light commercial space, RunBrook helps simplify the permitting process with reliable documentation and responsive support.

Why HVAC permit packages matter

Reduce delays and support smoother approvals'

HVAC permit packages give building departments the information they need to review mechanical system design before installation. A complete and accurate package can help reduce plan review comments, avoid unnecessary delays, and give project teams greater confidence that the HVAC system is designed correctly.

  • Provide the documentation needed for mechanical permit review and approval.

  • Help verify that HVAC equipment is sized appropriately for the home or building.

  • Support HVAC designs that deliver better airflow, humidity control, and indoor comfort.

  • Address sizing, duct design, and documentation requirements before installation begins.

  • Prepare permit-ready documents aligned with applicable mechanical and energy code requirements.

  • Help builders and contractors stay on schedule with organized, timely documentation.

What is an HVAC permit package?

An HVAC permit package is a set of documents used to support mechanical permit review and demonstrate that a proposed HVAC system has been properly designed for the project. These packages typically include heating and cooling load calculations, equipment sizing information, duct design documentation, and other supporting details required by the local jurisdiction.

Permit package requirements vary by state, city, county, and building department. RunBrook helps project teams prepare the required documentation based on the project type, building design, HVAC system, and applicable permitting requirements.

What is included in an HVAC permit package?

Depending on the project scope and jurisdiction requirements, RunBrook can prepare HVAC permit package documentation such as:

  • Manual J load calculations

  • Manual S equipment sizing

  • Manual D duct design

  • Mechanical ventilation calculations

  • HVAC equipment specifications

  • Duct layout support

  • Room-by-room load information

  • Heating and cooling design conditions

  • System capacity documentation

  • Airflow requirements

  • Energy code support documentation

  • Permit-ready summary reports

This documentation helps demonstrate that the HVAC system has been designed to meet the heating, cooling, ventilation, and comfort needs of the building.

Manual J, S, and D calculations

The foundation of residential HVAC design

HVAC permit packages often rely on Manual J, Manual S, and Manual D calculations to show that the system is properly sized and designed.

  • Manual J determines the heating and cooling loads of the home or building based on factors such as size, orientation, insulation, windows, air leakage, occupancy, and local climate. This helps determine how much heating and cooling the project needs.

  • Manual S uses the load calculation results to select HVAC equipment that matches the project’s heating and cooling needs. Proper equipment sizing helps avoid oversized or undersized systems that can lead to comfort issues, humidity problems, short cycling, or inefficient performance.

  • Manual D helps design duct systems that deliver the right amount of air to each space. A well-designed duct system supports balanced airflow, better comfort, and improved HVAC performance.

Residential & multifamily permit support

Built for builders and production schedules

RunBrook provides HVAC permit packages for single-family homes, multifamily communities, townhomes, build-to-rent developments, and production home projects. Our team understands the importance of consistent documentation, fast turnaround times, and coordination across multiple plans, models, or construction phases.

For production and multifamily projects, we can help streamline documentation across repeated floor plans, multiple buildings, and large project schedules.

Best for:

  • Production home communities

  • Multifamily developments

  • Townhome projects

  • Build-to-rent communities

  • Renovations and additions

  • Residential community developments

  • Single-family homes

Commercial & light commercial support

Documentation for larger and more complex projects

RunBrook can also support HVAC permit documentation for commercial and light commercial projects where mechanical design documentation, load calculations, or energy-related support is needed for permitting or project review.

Commercial requirements can vary significantly depending on building type, occupancy, system complexity, and local jurisdiction. Our team helps project teams understand what documentation may be needed and prepare clear information for review.

Best for:

  • Commercial spaces

  • Tenant improvements

  • Clubhouses and amenity buildings

  • Mixed-use projects

  • Multifamily common areas

  • Small office and retail spaces

  • Renovations and buildouts

When should you request an HVAC permit package?

Start before mechanical permits are submitted

HVAC permit packages should be prepared before mechanical permit submission and before HVAC equipment is ordered or installed. Starting early gives the project team time to confirm system sizing, review design assumptions, coordinate equipment selections, and address any permitting requirements before construction delays occur.

For builders and developers, early coordination is especially helpful when working with repeated plans, model homes, multifamily buildings, or phased construction schedules.

How HVAC permit packages support better performance

More than just paperwork

A strong HVAC permit package does more than support permitting. It also helps verify that the system is designed around the actual needs of the building.

Accurate calculations and design documentation can help reduce:

  • Oversized or undersized equipment

  • Poor humidity control

  • Uneven temperatures

  • Weak airflow

  • Excessive energy use

  • Short cycling

  • Comfort complaints

  • Installation confusion

  • Permit review delays

By getting the design right before installation, project teams can improve HVAC performance and reduce costly issues later.

Three construction workers wearing yellow and white safety hats are reviewing blueprints at a construction site with buildings and cranes in the background.

Our process

Clear, organized, and permit-ready

Step - 1 Review project information

We collect and review plans, specifications, equipment information, insulation details, window schedules, orientation, and other project inputs.

Step - 2 Prepare calculations

Our team develops the required load calculations, equipment sizing, duct design, ventilation calculations, or related documentation.

We organize the required documents into a clear, permit-ready package for the project team or jurisdiction.

Step - 3 Compile the permit package

Step 4 - Support next steps

If questions or comments arise during review, RunBrook can help clarify documentation and support the project team.

A person drawing architectural plans on paper with a pen, seated at a wooden table with a ruler nearby.

Why choose RunBrook?

HVAC documentation backed by building performance expertise

RunBrook brings technical experience, building science knowledge, and practical construction support to HVAC permit packages. Because our team also provides HERS ratings, energy modeling, HVAC grading, blower door testing, duct leakage testing, and quality assurance inspections, we understand how HVAC design affects comfort, code compliance, energy use, and long-term performance.

Project teams choose RunBrook for:

  • Manual J, S, and D calculation support

  • HVAC permit package documentation

  • Residential, multifamily, and light commercial project expertise

  • Support for production builders and repeated plans

  • Clear reporting and organized submittals

  • Coordination with builders, HVAC contractors, and project teams

  • Knowledge of energy code and building performance requirements

  • Fast turnaround times

Frequently Asked Questions

  • An HVAC permit package is a set of documents used to support mechanical permit review. It typically includes load calculations, equipment sizing, duct design information, ventilation calculations, and other documentation required by the jurisdiction.

  • Many jurisdictions require HVAC design documentation before issuing a mechanical permit. A complete package helps show that the system is properly sized and designed for the project.

  • Depending on the project, the package may include Manual J load calculations, Manual S equipment sizing, Manual D duct design, ventilation calculations, equipment specifications, and other supporting documentation.

  • Yes. RunBrook provides HVAC permit package support for multifamily developments, townhomes, build-to-rent communities, and residential projects with multiple units or buildings.

  • Yes. RunBrook can support production builders with repeated plans, model homes, phased communities, and high-volume residential schedules.

  • An HVAC permit package should be requested before mechanical permit submission and before HVAC equipment is ordered or installed.

  • Yes. Requirements vary by state, city, county, and building department. RunBrook can help prepare documentation based on the project scope and applicable jurisdiction requirements.

  • Yes. Proper load calculations, equipment sizing, and duct design can help reduce comfort problems such as uneven temperatures, humidity issues, poor airflow, and oversized equipment.

  • Yes. While many of RunBrook’s clients are located in Florida, our team can support select projects outside Florida depending on scope, schedule, and location.

Two men shaking hands at an outdoor construction site with hard hats and blueprints on a table, during sunset.

Prefer to talk first?

Call us at 1-833-RunBrook

(1-833-786-2766)

or email us directly at info@runbrook.com

We’ll get back to you right away!

Discuss Your Next Project

If your project requires energy modeling, certification support, HERS ratings, blower door testing, or other building performance services, RunBrook can help keep the process moving from design through final verification.