ProCalcs was amazing to work with! I originally reached out to have them complete the energy calculations for our residential owner-builder project. A few years later, we made some changes to our HVAC system, and our inspector requested updated calculations. I reached out again, and my email was answered quickly. They immediately jumped in to help and made the process so easy. I’ve recommended ProCalcs to friends and will definitely work with them again in the future. Highly recommend!

One word: Awesome!Now, I'll give a few more.ProCalcs performed a J load calculation for our home and the entire experience was simply amazing! They were responsive, courteous, informative, prompt, professional and just all around helpful!I highly recommend to anyone who needs calculations done for their home to use ProCalcs. My project was lead by Ivan and he was just great to work with!So, if you need services done to decide what HVAC system or unit your home requires, look no further. You've found your answer!

Very prompt and professional service, with excellent communication and responsiveness! Definitely will use ProCalcs again. Thanks for your help!

Great service and very professional. They were responsive, efficient, and delivered excellent quality work. Highly recommended!

Excellent, Professional Services provided with CARE!!!! Thank you the BEST TEAM!!!

Always nervous when using an online service , but this company was stellar. They responded quickly, they listened to what I wanted and were fabulous to deal with. I would recommend them to anyone needing their services.

The ProCalcs team consistently delivers exceptional value with unmatched response times. Their designers are highly knowledgeable, approachable, and thoughtful in every aspect of their work. They answer all of our questions quickly and clearly, allowing us to keep our projects moving forward without delays.

ProCalcs makes mechanical design and energy calculations a seamless and straightforward process. Their efficiency, accuracy, and commitment to client support truly set them apart. I highly recommend them to anyone looking for reliable, high-quality mechanical design services.

As a General Contractor I highly recommend ProCalcs for all of your projects. Excellent customer service, instant response to all of your questions and updates, Fast Service and return with your projects calculations in a record time .
Great job guys , keep it up. Till the next project.
Buildwell Construction

This is the most responsive company I’ve ever worked with. They answered my emails even on weekends. Great results and a pleasure to work with.

Fast and helpful service for my manual JS. Would highly recommend!

Excellent Professional Service

2nd time around as a residential customer. Thorough, patient, knowledgeable, and freaky fast with response times— even outside normal hours on occasion. Thanks for great service!

Fair pricing, fast service. Highly recommend!!

My experience with ProCalcs has been absolutely invaluable! Richard's help was instrumental in solving a permitting issue I had for a long while, and continues to go above and beyond. They are super responsive and always a pleasure to speak to.

Very detailed and super responsive

Very responsive to inquiries, very quick service with great communication and I am happy with the product. Will use ProCalcs again for my next build.

Sol was great

Updated: 01-19-2
Just received Our HVAC Package for a residential expansion Project , as always Pro-calcs was fast and professional.
Updated: 09-19-25 Exceptional HVAC Design Services for a client's Barber Shop Project

We recently partnered with Pro Calcs for the HVAC system design of a client's barbershop, and we couldn't be more pleased with their services. From the outset, the team at Pro Calcs demonstrated the utmost professionalism and expertise in their field.

Timeliness: The Pro Calcs team respected our project timeline with commendable precision. They completed all tasks according to our schedule, ensuring that no aspect of the design process would delay our progress.

Cost-Effective: Price is always a consideration, and Pro Calcs provided exceptional value. Their services were reasonably priced without compromising on quality, which was greatly appreciated as it contributed to the overall success of the project within budget.

Responsiveness: Every query and request we had was met with prompt and clear communication. Their responsiveness made the collaboration seamless, reducing stress and making decision-making straightforward.

Knowledge and Expertise: Pro Calcs' knowledge in HVAC system design is evident in the quality of work they delivered. Their team was not only knowledgeable but also very willing to share their expertise, which enhanced our understanding and ensured that the best possible system was installed in the barber shop.

Choosing Pro Calcs was absolutely the right decision. Their team became a valued part of our project, and their contribution was a significant factor in its success. We highly recommend their services to anyone in need of reliable and professional HVAC design.