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Commercial HVAC Built Into the Project From Day One.
Full-scope HVAC design and installation for commercial new construction and design-build projects across coastal Connecticut.
Getting HVAC right in a commercial build isn’t something that can be fixed after the fact. The systems need to be designed around the building’s layout, occupancy, and intended use — from the first set of drawings to the final commissioning walk. When HVAC is treated as an afterthought, it shows up in the operating costs and the tenant complaints for years to come.
We work with developers, general contractors, and building owners across coastal Connecticut on commercial new construction and design-build HVAC projects. We handle the full scope — load calculations, system design, custom ductwork fabrication, installation, and commissioning — under one roof.
What's Included
Everything We Handle for Commercial New Construction
Commercial Load Calculations & System Design
Every commercial project starts with a full load calculation — sizing the system to the actual demands of the space, not a rule-of-thumb estimate. We produce full system design documentation for permit and construction coordination.
Custom Ductwork Fabrication
Our in-house sheet metal specialist fabricates custom ductwork to fit your project's specific layout. No compromises on fit, airflow, or aesthetic integration with the finished space.
Multi-Zone & VRF System Design
For commercial buildings requiring independent temperature control across different tenants or zones, we design and install multi-zone and Variable Refrigerant Flow (VRF) systems from the ground up.
Commercial Equipment Installation
Full installation of all HVAC equipment — rooftop units, heat pumps, boilers, air handlers, and distribution systems — coordinated with your construction schedule.
General Contractor & Architect Coordination
We work directly with your GC, architect, and mechanical engineer to coordinate rough-in, inspections, and phased installation around the construction timeline.
System Commissioning & Handover
Every system is commissioned, tested, and verified before handover. We provide full documentation and walk building management through the systems before project close.
Why It Matters
In commercial construction, HVAC decisions made early determine how the building performs — and what it costs to operate — for decades.
Design Errors Are Expensive to Fix After the Fact
An undersized or poorly designed commercial HVAC system is far more expensive to correct after construction than to design correctly upfront. We invest the time at the start so the system performs as intended from day one.
One Team From Design to Commissioning
When design, fabrication, and installation are handled by the same team, there are no coordination gaps, no finger-pointing when something doesn't fit, and no delays waiting on a separate subcontractor.
S1 Licensed & Fully Insured
Every commercial project we take on is backed by our S1 Unlimited contractor license and full insurance coverage — meeting the requirements of general contractors and commercial property owners.
Built for Connecticut's Climate
e design commercial systems for New England conditions — not generic specifications. Cold-climate equipment, proper insulation allowances, and humidity considerations are built into every design.
Get In Touch With Us
Commercial Services
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We’d love to help find the right system for your home. Give us a call or send us a message.