Accurate Calculations.
Efficient Designs.
Better HVAC Systems.
Gannon Mechanical Group delivers a full range of HVAC consulting and design services
tailored for mechanical contractors—precise, dependable, and ready for the field.
Support from Design through Installation
Why contractors choose us
We do more than prepare HVAC documents—we become part of your team. From design through construction, we provide accurate, buildable solutions and responsive support, all while building relationships that last well beyond a single project.
Ready to bring us in?
Whether you’re in pre-construction or in the field, we can step in and deliver.
Let’s talk about what you need.
Our Services
Gannon Mechanical Group offers a wide range of capabilities, and these are just some of our primary services. If you don’t see exactly what you need, reach out and we can discuss how we may be able to support your team.
Manual J, S, D
Manual J, S, and D services for accurate sizing and efficient HVAC design.
Material take-off
Precise take-offs that help keep your project organized and on track
HVAC Design
HVAC design services focused on efficiency, accuracy, and buildability.
Submittal / IOM Packages
Detailed submittal and IOM packages to help keep your project on track.