HVAC Installation

Choosing the right system

There is no single best HVAC system. A small office, a restaurant, a clinic and a warehouse each need something different. Our engineers look at the building's size, use, occupancy, zoning needs and budget, then recommend options in plain language.

Common choices include packaged rooftop units, split systems, heat pumps and hydronic heating with separate ventilation. Each has different costs to install and to run.

Installation steps

A typical installation follows a clear sequence, and our own crew handles each stage.

• Equipment ordering and submittals
• Rough-in of piping, ductwork and supports
• Equipment setting, often by crane for rooftop work
• Electrical and controls connection by HSM's electricians
• Insulation, sealing and refrigerant or hydronic piping
• Start-up, testing, air balancing and commissioning

Coordination is the real work

HVAC competes for ceiling and roof space with lighting, sprinklers, cable trays and structure. We coordinate routes before installing, which avoids cutting or rerouting finished work. Because our electricians are in-house, power, disconnects and control wiring are scheduled with the mechanical rough-in, not chased afterwards.

In renovations, existing systems may be undersized, poorly documented or past their service life. We check what is there and tell you whether to reuse, repair or replace.

Plan for comfort and operating cost

Good design aims for steady temperatures, enough fresh air and equipment that is accessible for service. Roof curbs, access ladders and filter locations seem like small details until a technician has to work around them in January.

Ask about warranties on equipment, which are set by the manufacturers. We hand over start-up reports, balancing results and operating information so your team or ours can maintain the system.

Delivery times on larger equipment can be many weeks, so we order early. Temporary heat during winter construction is also planned from the start.