New Construction HVAC

  • Premium HVAC equipment tested for reliability
  • Proven installation for offices, schools, hospitals & more
  • Trusted by builders across Connecticut & New York

Other Commercial Services

Engineering & Design

Our team can provide engineering and design services for projects of any size and scope.

Learn more

Tenant Fit-Outs & Interior Alterations

Restaurants, Data Centers, retail spaces, etc. Alliance has the experience to manage timelines by working alongside contractors and other trades.

Learn more

Building Automation & Control Systems

Today’s facilities require smart controls to balance comfort with efficiency. Alliance designs and installs building automation systems that integrate heating, cooling, ventilation, and lighting into a single, easy-to-manage platform. Our controls improve energy savings while giving property managers precise oversight.

Learn more

Equipment Replacement & Upgrades

Let our retrofit experts help you select equipment and controls that will save energy and increase productivity by minimizing downtime.

Learn more

Complete Heating, Cooling & Ventilation for New Builds

Alliance provides complete HVAC services for new construction projects across Connecticut and New York. From design coordination to installation and commissioning, we deliver heating, cooling, and ventilation systems that meet code, run efficiently, and give building owners peace of mind. Whether you’re constructing offices, schools, or healthcare facilities, our team ensures your project is supported by systems that perform from the start.

What We Provide for New Construction

Premium Equipment, Installed Right

The quality of your HVAC equipment matters just as much as the workmanship behind it. Alliance installs systems from trusted manufacturers known for reliability and durability. Every piece of equipment is chosen for its ability to handle the seasonal extremes of the Northeast and the demands of high-traffic buildings. Our crews follow strict installation practices so your investment is protected from day one.

Coordination with Your Build Team

HVAC isn’t installed in isolation — it has to work alongside plumbing, electrical, fire suppression, and structural components. Alliance coordinates with other trades on site, aligning schedules, staging, and layouts to prevent conflicts. On tight urban job sites, that can mean orchestrating crane lifts for rooftop units. On suburban campuses, it often means balancing system layouts across multiple buildings. In both cases, our focus is seamless integration.

Tested & Commissioned Before Turnover

Before a new facility opens, every system is tested, balanced, and verified. Alliance conducts full commissioning — checking airflow, calibrating controls, and ensuring performance meets design intent. For contractors and developers, this means inspections pass smoothly. For owners and tenants, it means comfort and efficiency are guaranteed from day one.

Training & Peace of Mind

We don’t walk away once equipment is installed. Alliance trains building operators and managers on controls, efficiency practices, and maintenance schedules. This knowledge ensures HVAC systems are operated correctly, extending equipment life and reducing downtime. Pair that with our ongoing service programs, and clients know their systems are supported well beyond ribbon-cutting.

From Offices to Hospitals, We’ve Done It All

Alliance has delivered HVAC installations for virtually every type of new construction project in Connecticut and New York. We’ve equipped high-rise office towers with complex zoning, built reliable systems for schools and universities, and installed code-compliant ventilation in hospitals and labs where safety is critical. Our teams have managed rooftop unit lifts in tight city sites, outfitted sprawling warehouses with large-scale air distribution, and integrated heating and cooling into retail centers, restaurants, and hospitality venues.

Whatever structure you’re building — from municipal facilities to mixed-use developments — Alliance provides the heating, cooling, and ventilation systems that keep projects on schedule and built to last.

Choosing the Right System for Every Build

Premium equipment is only the starting point — what matters just as much is how well it’s matched to the demands of your project. Alliance selects systems that deliver long-term value, not just quick installations. That means equipment sized for efficiency, controls that give managers real flexibility, and features that stand up to the seasonal extremes of Connecticut and New York.

From corrosion-resistant components for coastal buildings to quiet rooftop units that meet urban noise restrictions, our approach ensures every system is more than reliable — it’s adapted to the realities of where it will operate.

Trusted by Developers and Contractors

Selecting the right partner for HVAC installation can make or break a new build. With Alliance, builders gain more than a contractor — they gain a team committed to delivering systems that perform reliably from the moment the doors open.

Proven Experience – For decades, we’ve worked on offices, schools, healthcare facilities, and industrial projects across Connecticut and New York. That depth of experience allows us to anticipate challenges before they become costly problems.

Premium, Reliable Equipment – We install HVAC systems from trusted manufacturers, chosen for durability, efficiency, and performance under the region’s demanding seasonal conditions. Every system is commissioned and tested to ensure compliance and comfort before turnover.

Seamless Coordination – Our crews work in lockstep with other trades, ensuring HVAC is integrated cleanly into the larger project. From crane lifts on high-rise jobs to tight timelines on municipal projects, we know how to keep construction moving.

Local Knowledge, Built-In – New builds in Connecticut and New York face unique challenges: coastal humidity, freezing winters, strict codes, and dense urban sites. Alliance designs and installs with these realities in mind, so systems are prepared for the long haul.

Ongoing Partnership – Our involvement doesn’t stop at project completion. With maintenance programs and 24/7 service, we provide builders and owners with confidence that their HVAC systems will remain dependable for decades.

When you hire Alliance, you’re not just checking off HVAC on the construction list — you’re choosing a partner who protects your schedule, your budget, and your reputation.

Build With Confidence

Alliance delivers more than installation — we provide HVAC systems that are premium, reliable, and built to perform for decades. From construction planning to post-occupancy support, our work ensures every project opens on time with heating, cooling, and ventilation systems owners can depend on.