Priority Energy United States Service Territory for Mechanical Sizing

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Priority Energy's Designers Specialize in HVAC Design, Meaning you Will Get an Installable System that Will Work to Heat, Cool & Ventilate Your Home

Priority Energy, based in Chicago, IL,  has helped builders across the United States with mechanical designs.  Where traditional MEP firms provide generic "one size fits all" designs for all your mechanical, electrical and plumbing needs, Priority Energy specilizes in Mechanical Design and system testing/commissioning.  Furthermore, we are envelope design & testing experts so we will make sure the buildings match the designs with proper specifications.  New or existing buildings will benefit from a proper system sizing; we help to maximize comfort and minimize problems.

For More information on what it takes to provide an accurate ACCA Manual J, please check out the following links:

The International Energy Conservation Code (IECC) Requires Mechanical System Sizing be performed on Every Home & Commercial Building

The mechanical system heat load calculations we provide will meet the requirements specified in the IECC.  While an MEP firm can charge you thousands of dollars for their designs, which are not the most accurate, Priority Energy's load calculations start as low as $600 for simple homes, and $1,000 for commercial projects.  For more information on our HVAC Design and Energy Modeling services to meet the energy code click the link below

Call us today to learn more about our ACCA Manual J Load Sizings - 800.737.2299

Or click one of the links below for more information of what's required in your area:

  • Thank you again and you will be the first person I call if I need additional part or service from your company.
  • I just wanted to send this message to all you and say GREAT JOB!  We had a rough inspection today and passed for the Woodward Ave. house. The inspector told us "if every house I inspected looked like this one I would be out a job".

    Anonymous Builder
  • We were so impressed with the amount of information the Priority Energy technicians gave us during our ENERGY AUDIT.  If you are buying a house, I would strongly recommend having them do an energy audit on it, in addition to your usual home inspection.

  • Thanks for a super intelligent and deep seminar expertly handled by a staff which was a pleasure to be around. Lunch was superbly and subtly handled.

    A.S. Architect
  • I wanted to thank you for all of your extra time and energy during our BPI training over the last few weeks. You really helped put things in perspective. You are an awesome crew and your facility is a valuable resource for students and the community

    BPI Student, L.E.
  • There is much less dust in the house and the monthly gas and electric charges have been reduced by 10 to 15%.....I'm sure I will see greater savings over a twelve month period......thanks again.

    Aeroseal Client, R.N.
  • Just completed my BPI Field exam for my Quality Control Inspector (QCI) certification renewal at Priority Energy.
    Such a convenient and well-set-up training and test center with caring and knowledgeable staff and proctors! Thanks folks!


    P.R., Ottawa, IL
  • It's been cold here for the past few days and I really feel the difference in heating since the building was Aerosealed! My apartment is so much warmer now. Thank you Priority Energy!


    Miruna; Tenant at Country Manor Apartments, Peru, IL
  • Anytime I can be a reference for all the great work on my (new) house, please let me know.  Priority Energy is outstanding at what they do!

    Executive at Medline Industries, IL

Latest News

Aeroseal VOC Compliance Cert
Recent testing by Berkeley Analytical officially concluded that DUCTSEAL, the Aeroseal  sealant used to seal leaky ductwork is compliant for low volatile organic chemical (VOC) emissions.
Blower Door test at CVS Pharmacy in Glen Ellyn, IL
The newly constructed CVS Pharmacy at the corner of Roosevelt Rd and Park Blvd in Glen Ellyn, IL meets Illinois' energy efficiency requirements and is ready for occupancy!  Priority Energy recently completed the mandatory IECC Blower Door test on the 38,000 s.f.