Why h2x Is the Natural Successor to Hevacomp — And Why Engineers Should Make the Switch Now

For many years, a large number of design engineers found Hevacomp to be their platform of choice to handle mechanical calculations. Effective 1 January 2026, Hevacomp will no longer be supported.

For some, the impact may not be immediately apparent. Hevacomp will not stop working. If you have a perpetual license or an active subscription, the software will still continue to function. However, there will be some major limitations.

The Hidden Risks of Using Discontinued Software Like Hevacomp

First, the parent company, Bentley Systems, will no longer provide technical support. If your product stops working properly, you are on your own. If you have questions about its use, too bad. Also, if you are forced to reinstall on a new computer, you will not be able to do so.

You will also find that there will no longer be any updates. This will impact more than not getting new features; it will potentially impact your compliance. Without updates, you will not be able to produce valid Part L compliance assessments. In a constantly evolving industry that is always adopting new Standards and technologies, those who stay with Hevacomp will find that their designs will not even meet best practices.

Even if you are not affected by the lack of compliance assessments, eventually the product will simply stop working. As Windows operating systems update, the retired software may eventually become unstable or fail to launch.

I am sure some will continue to stretch out, trying to make a change until absolutely necessary. Maybe in an attempt to forestall any additional costs, maybe because change is hard.

Having to learn a new system can seem daunting. (Spoiler alert, it doesn’t have to be.)

So, when you know that change is inevitable, it is important that your next choice serves your needs for today and for the foreseeable future. If you are a current user of Hevacomp, change is no longer just a choice; it is a necessity.

This blog will share with you why h2x is a significant upgrade from Hevacomp and how we will help make your switch easy with our white-glove onboarding program.

h2x A Modern Platform Built for Today’s Engineering Challenges

User experiences across Capterra, G2, industry forums, and engineering communities, and conducting a deeper investigation into emerging platforms, h2x consistently stands out as the most capable, modern, and forward-thinking alternative for building services design. For engineers who relied on Hevacomp, h2x isn’t just a replacement; it is a superior evolution.

Platform Architecture

Hevacomp – For years, many design engineers shared their frustration that Hevacomp was already an outdated platform. Many users found that Hevacomp was slow due to its complexity and because it was a Windows-only desktop platform. When updates were needed, they had to be downloaded and manually installed because when the architect made a change, it could take a long time to update the layout to run the new calculations.

h2x – The h2x platform is renowned for its speed, having been built from the ground up by engineers for engineers. It was designed based on modern engineering workflows. It takes advantage of a cloud-based architecture. This ensures that the software you are using is always completely up-to-date. There is never any need for reinstalls, patches, or version conflicts. For design engineers working in fast-moving environments, that alone removes hours of unnecessary friction.

Download a h2x vs. Hevacomp comparison infographic.

Speed, Accuracy, and Automation Where It Matters Most

If a software is slow and difficult to use, it not only affects the user experience it will also impact both its overall performance and compliance.

Let’s see how the two platforms compare:

Hevacomp – always had a reputation for being slow and clunky. That reputation was earned for three reasons:

1. Complexity: The complexity of the software made it slow and difficult for the user
2. Manual: Because the manual input users found it was slow
3. Set Up: Every project took a long time to set up

h2x – Accuracy is paramount for EVERY engineer. You want to rely upon a platform that is proven to be accurate. h2x is one of the few companies that are CIBSE-Verified to show we are accurate.

If there is any doubt about how h2x ranks for its speed and automation, simply check the review sites such as Capterra and Software Advice, where it repeatedly earns praise. Tasks that required manual checks or repetitive inputs in Hevacomp are reduced to seconds in h2x. Reviews have highlighted:

• faster calculations
• clearer input pathways
• streamlined design processes
• automated compliance checks

The platform is structured to reduce error. Instead of navigating through rigid, legacy-style menus, engineers can work fluidly through a clean, guided interface that ensures critical details aren’t missed. When compliance matters, and it always does, this efficiency directly impacts the quality and reliability of the final design.

Product Support

How well a company handles product support says a lot about its commitment to its customers. Customer support is typically showcased in two areas: Onboarding and Customer Support.

1. Onboarding: If a product is difficult to learn or if the onboarding process is not enhanced for the user, bringing on new users will always be a problem.
2. Customer Support: No matter how well a person is trained, there will always be times when they have questions. If a company is slow to respond, it means that the design engineer will lose time and revenue on a project. In an industry with hard deadlines, waiting for a support team to get back to you can drive you crazy as looming deadlines get closer.

The h2x Difference: From Setup to Success

Even before Hevacomp decided to discontinue its platform, it had a terrible reputation for both a difficult onboarding process and poor customer support.

• Hevacomp Onboarding: Because Hevacomp was considered difficult, its onboarding and setup process was marked as manual, technical, and complex to the extent that it often required IT-level interaction.
• Hevacomp Customer Support: While no customer support currently exists, it was always considered challenging and slow. The ONLY was to obtain support was to fill out a support ticket and wait for them to respond.

However, h2x is known for its professional onboarding and for fast response times when a question arises.

• 
  h2x Onboarding: h2x provides a white-glove onboarding service. the design software not only provides 1:1 training that is custom to your needs, but they will work with you on your first project to make sure you get off to the right foot. h2x has been lauded for its commitment to ensuring your staff is properly trained. Here is an example of one of its training days.
• h2x Customer Support: h2x provides world-class customer support, giving you direct access to technical experts and a genuine willingness to incorporate user feedback into future updates. You can contact them and get an immediate response through their chat portal.

What Former Hevacomp Customers Say After Switching to h2x

They say it is not what you say about yourself, but what others say about you that counts. Here are just a few words that express how customers who switched from Hevacomp to h2x have benefited:

5/5

“h2x is a fantastic software. I found h2x very intuitive, it feels like a 21st century software. It is very easy and quick to use, and takes a lot less time to teach new engineers how to use the software. I have used h2x on several projects. Generally, I have used it for sizing domestic water systems and the associated plant items, the speed and simplicity in using the tool defiantly makes my life a bit easier. It’s a very comprehensive design software which I would recommend anyone to try.”

– Joe K., Engineer at MEP Design – UK Building Services Consultants

August 10, 2021

(Used the software for 6-12 months)

Construction industry

5/5

“Brilliant! The h2x team go above and beyond to ensure customer satisfaction. They are flexible, responsive, supportive, and collaborative. They are also incredibly positive, customer focused, easy to communicate with, and invested in my success. Thanks h2x, here to a long standing business relationship!”

– Joshua M., Director at Eco-Nexus Engineering – UK Building Services Engineering Consultants

February 21, 2024

(Used the software for less than 6 months)

Construction industry

5/5

“We’ve been using h2x for our mechanical design work and have found it to be a truly valuable tool. It’s CIBSE-accredited calculations give us confidence in the accuracy and compliance of our designs, which is essential for delivering high-quality engineering work. The software is intuitive and streamlines a lot of the time-consuming tasks involved in pipework sizing and system planning. One of the standout aspects, though, is the customer support. That level of responsiveness really sets h2x apart. Highly recommended for any MEP engineer looking for a reliable, professional tool that’s backed by top-tier support.”

– Edward J., Mechanical Engineer at Noquet Building Services – UK Building Services Consultants

May 13, 2025

(Used the software for 1-2 years)

Construction industry

The Hevacomp Switch To h2x Isn’t Just Logical, It’s Strategic

When it comes to design engineers, keeping up often ties to choosing methods that boost precision, speed, and flexibility. Even though Hevacomp had its place in the past, it lacks what today’s demands require. h2x fills that gap, delivering results with sharp accuracy and real-world usability, exactly what professionals look for.

Moving to h2x means more than swapping software. It brings sharper designs, clearer tasks, fewer mistakes, plus fits how construction is naturally shifting anyway. If you once used Hevacomp, there is no doubt, h2x stands out. Not just ahead, but actually superior in what it offers.

Ready to leave legacy software behind and start designing with CIBSE-verified speed? Watch a demo of h2x or book a personal 1:1 call to start your migration switch today!