About JS Engineering Solutions

Building software that empowers MEP engineers to design better, faster, and smarter.

Our Story

JΔS Engineering Suite was born from a simple observation: MEP engineers deserve better tools. As practicing engineers ourselves, we experienced firsthand the frustration of outdated software, cumbersome workflows, and calculations that took far longer than they should.

We set out to build the software we wished we had - comprehensive, accurate, and actually enjoyable to use. The result is JΔS Engineering Suite: a modern MEP design platform that combines powerful calculations with an intuitive interface.

Our Mission

To provide MEP engineers with world-class design software that increases productivity, provides comprehensive code compliance support, and empowers better building design.

Accuracy

Every calculation matches industry-standard methodologies like ASHRAE and EnergyPro.

Efficiency

Streamlined workflows that let engineers focus on design, not data entry.

Innovation

Embracing AI and modern technology to solve real engineering problems.

By the Numbers

1,300+
Engineering Modules
523
Weather Locations
200+
Compliance Tools
24/7
AI Assistance

Company Timeline

Dec 2025
v1.0 Launch
Initial release with 970+ engineering modules, ASHRAE 90.1 and Title 24 compliance, 523 weather locations, and Revit add-ins.
Jan 2026
v1.1 Production Hardening
7-step workflow navigation, Appendix G wizard, NRCC form auto-population, Revit bidirectional sync, and autosave/recovery.
Feb 2026
v1.2 AI Integration
Cloud AI design assistant (Gemini/Claude/OpenAI), CLI runner, enhanced clash detection with soft clashes and real-time monitoring, and 1,300+ total modules.

Technology Stack

JΔS Engineering Suite is built with modern technologies chosen for reliability, performance, and extensibility.

Desktop Application

Python 3.11+ with PyQt6 for the GUI framework. NumPy and SciPy for numerical computation. PyInstaller for single-file distribution.

Revit Add-ins

C# with .NET Framework 4.8. WPF for the user interface. Supports Revit 2022-2025 via the Revit API.

Web Platform

Flask REST API with PostgreSQL. Static HTML/CSS/JS website on AWS Amplify. JWT authentication with 2FA support.

AI Integration

Cloud AI via Google Gemini, Anthropic Claude, and OpenAI APIs. Bring your own API key with provider selection.

Engineering Standards Referenced

Our calculations and compliance tools are built on these authoritative references:

ASHRAE Handbook of Fundamentals — Psychrometrics, load calculations, weather data
ASHRAE 90.1-2022 — Energy Standard for Buildings
California Title 24-2025 — Building Energy Efficiency Standards
ASHRAE 62.1 — Ventilation for Acceptable Indoor Air Quality
SMACNA — Duct construction, sizing, and clearance standards
NFPA 13/72 — Sprinkler and fire alarm system design
AHRI 550/590, 340/360 — Equipment performance rating
NEC 110.26 — Electrical clearance requirements

Open Source Acknowledgments

JΔS Engineering Suite is built with the help of these open source projects:

Python
PSF License
PyQt6
GPL v3
NumPy
BSD License
SciPy
BSD License
Flask
BSD License
Matplotlib
PSF License

Contact Us

Have questions or want to learn more? We'd love to hear from you.

Email: james@jsengineeringsolutions.com