Priority Energy Clarendon Hills, IL Service Territory

Call or Click today for your Mechanical Sizing and Test & Balance Needs



Claredon Hills, IL faces extreme weather conditions; it can be hot and humid in the summer, and extremely cold and dry in the winter.  The buildings we construct must meet both those conditions.  The common myth when it comes to installing Heating, Ventilation  And Cooling (HVAC) systems is bigger is better.  The problem is when we install oversized heating & cooling systems, we damage the buildings and create comfort/IAQ issues:

  • AC's don't run long enough, creating high humidity in the summer which can create hardwood flooring issues, and even mold
  • Furnaces don't run long enough and create huge temperature swings and cold spots in the home, and low humidity issues from short humidifier run times
  • System life is signficantly reduced from increased cycling

For More information on How Priority Energy can help with your next project call us at 800.737.2299, fill out the form to the right, and/or follow one of the following links for more information:


Whether you're building a single family home, or a commercial building, mechanical sizing is required with the submission of your building permits.  Priority Energy can provide these services in addition to full system test and balance.  Our services include everything you need to get your permits approved in Claredon HIlls, IL:

  • Residential
    • ACCA Manual J Load Calcs (total building & room by room loads)
    • ACCA Manual S - Equipment Selection
    • ACCA Manual D - Duct Design & Layout
    • ASHRAE 62.2 Ventilation Calculations & System Design/Selection
  • Commercial
    • ASHRAE RTS/CLTD Methods for Load Sizing (total building & room by room loads)
    • ASHRAE 62.1 Ventilation Calculations & System Design/Selection


Regardlesss of what you spend on your HVAC system, if the system is not installed and then commissioned by a certified Testing and Balancing professional it is unlikely it will run correctly.  Priority Energy had been providing test and balance services for years; our certified professionals have seen thousands of systems and millions of square feet of resturants, schools, multi-family, churches and much more over the years.

Test & Balance of systems is also required by the majority of city, village, and states across the US.  It's a requirement in the IECC or Internation Energy Conservation Code.

Priority Energy can help you with:

  • Pre Construction Plan Review, Mechanical Sizing & Site Walk throughs to ensure the right equipment is selected
  • Post Construction System/Building Commissioning
  • Site Walk throughs and system diagnostics to eliminate surprises during final walk throughs.

Call us today at 800.737.2299 or fill out the form to the right for more information on how we can help you design your next project!

  • 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
  • I have a two story home built in the mid seventies. Lots of temperature fluctuation between the floors. The Aeroseal process dramatically increased the air flow to the second floor. Good experience. The company was very informative, answered a lot of questions.

    Vince from Oakbrook, IL
  • "It's been cold here for the past few days and I really feel the difference in heating since the Aeroseal, my apartment is so much warmer now. Thank you!"  

    MP from Peru, IL
  • Thank You so much for the super-fast turn around of our Manual J, D and S reprt for the Village of Glen Ellyn. Our original Manual J kept getting kicked back to us for corrections but your calculations/report got approved instantly-no questions asked and no more permit delays!

    Kim, Glen Ellyn, IL
  • Thank you. Truly. I appreciate you taking the time to clarify things for me and then going above and beyond to ensure that my CEUs are handled for our current RESNET cycle. You’ve always been kind to me and this is another shining example of that.

    Craig, HERS Rater, Batavia, IL
  • (Aeroseal) is a GREAT Product! Really made our townhouse more comfortable!

    Gordon; Chicago, IL
  • We are having less ice on roof since the Aeroseal duct sealing! Thanks!

    Bill; Downers Grove, IL
  • Duct sealing (with Aeroseal) was the smartest thing I ever did! Our home is sooooo much more comfortable! We were so very pleased with Priority Energy and their technicians!

    Richard; Lake Forest, IL
  • On to the Radon issue - Excellent results with Aeroseal!  From 5 + to a .4.  Before sealing like we discussed, I had warm air coming out of the sump basket with the furnace running. Even with the furnace running, it is still pulling air in now.

    Bill; Belvidere, IL
  • Pat was awesome and super helpful! We are experiencing weak air flow in the duct system of our 1950''s home and Pat gave us great recommendations to fix the problem when we do our remodel.

    David; Arlington Heights, IL
  • Already the house seems more balanced (since Aeroseal duct sealing yesterday) .. far end of house is getting more warm air flow!

    Bryan, November 2019, Chicago, IL
  • Priority Energy did a great job with an Aeroseal project for my home. The rooms are more comfortable and even throughout the house, including the far registers which never used to get significant airflow. Very honest and trustworthy

    Bryan, December 2019, Chicago, IL
  • I hired Priority to seal the ducts and air seal my home.  I have been very pleased with

    the results.  The personnel from this company are professional and quite competent.  I have literally saved

    Nelson, Lake Forest
  • Priority Energy did a great job with an Aeroseal project for my home. The rooms are more comfortable and even throughout the house, including the far registers which never used to get significant airflow.

    B. L., Chicago, IL Feb. 2020
  • Used Priority Energy to help insulate (Aeroseal) a property we purchased and could not have been happier.
    R. M., Lake Bluff, IL April 2020
  • Very knowledgeable and professional (Aeroseal) staff. I definitely highly recommend and would use again in the future for other services!

    D.F., Chicago, IL Feb. 2020
  • Employees were all very helpful and professional! Came out in a timely manner (to do our Duct Test). Would highly recommend this company!

    J. R. New Lenox, IL April 2020
  • I had Priority Energy analyze my older home for indoor air quality and comfort because I was having difficulty maintaining temperatures. They came out and discussed our options. We ended up sealing our ducts and installing a whole-house dehumidifier.

    D. L, Lake Zurich, IL Feb. 2019

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