Office center, Burlington County NJ

The job

The site is a office center in Burlington County, New Jersey — multiple tenants under one management — where thirteen rooftop units totalling 310 tons of cooling capacity needed replacing, an average of just under 24 tons per unit.

The constraint was the one that matters most on an occupied commercial property: how long the building could be without conditioning. The answer was one day.

The work was done in July 2026 — peak cooling season, which is the hardest time of year to take a building's air conditioning offline and the reason the turnaround mattered as much as it did.

Why one day is the hard part

Thirteen changeouts is not thirteen small jobs. It is one large job where every step has to land in sequence, because a crane is on site for a fixed window and every unit competes for it. Each old unit has to come off, each curb has to be adapted, each new unit has to be landed, connected, wired and started — and none of that can wait on a decision that should have been made in advance.

So almost all of the work happened before the crane arrived. Weeks of preparation: surveying each of the thirteen curbs, confirming every adapter, staging equipment, sequencing the lift order, and coordinating the crane against roof access and the property's operating hours.

On the day itself, the crew and the support team worked to that sequence. The synchronization is the achievement here — not the individual changeouts, which are routine, but thirteen of them landing in one window without a gap.

What it took

• 13 rooftop unit replacements
• 310 tons of cooling capacity
• One day on-site turnaround
• Weeks of survey, staging and sequencing beforehand
• Crane coordination against roof access and the property's operating hours
• Curb adaptation on every unit
• Electrical connection, controls and startup commissioning throughout

On the roof