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HVAC Disconnect, Removal & Reset.

We coordinate the licensed disconnect, lift, and reset of your rooftop HVAC units so the new roof seals tight around every curb — and your system comes back on the same day.

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A Paramount Roofing technician working on a rooftop in New Mexico, where HVAC curbs are sealed into the new roof

Overview

Most reroof jobs on New Mexico commercial buildings and many homes include at least one rooftop HVAC unit sitting on a curb (the raised frame it sits on) where it passes through the roof. That unit has to come off the roof before we can tear off the old roof surface, and it has to go back down with the curb sealed and flashed (wrapped in the metal that seals roof joints) into the new roof. Leave that step to chance and you trade a worn-out roof for a brand-new leak at the curb.

We handle the coordination. Paramount schedules a licensed HVAC contractor to disconnect and cap the refrigerant lines before tear-off, lifts the unit off the curb during the roofing work, and has it reset and tested once the new roof is complete and sealed. You deal with one company, one schedule, and one warranty — not a hand-off between trades that nobody owns.

Part of a roof replacement

This is usually one piece of a larger project. We fold it into your residential roof replacement or commercial roofing so it’s scoped, scheduled, and warrantied as one job.

What’s involved

Licensed disconnect & recommission

Refrigerant handling requires an EPA Section 608 certification — not something a roofing crew does. We bring in a licensed HVAC contractor to properly disconnect, recover, and cap the lines before work begins, then restart and test the unit after reset. Your equipment comes back on running correctly, not just sitting back in place.

Lift, curb flash & seal

With the unit off, we remove and replace the curb flashing as part of the new roofing system. The curb is the first place a poorly sealed HVAC opening leaks — so we treat it like every other critical spot: a peel-and-stick waterproof layer, tight flashing, and a watertight seal to the new roof before the unit goes back down.

Same-day reset whenever possible

In New Mexico's heat, a building without AC even overnight is a serious problem. We schedule the HVAC crew to arrive for reset the same day the roofing reaches the curb, so the gap between disconnect and restart is as short as the job allows — usually the same calendar day.

One company, one point of contact

When disconnect and roofing are handled by different companies with separate schedules, the curb flashing becomes nobody's responsibility. We own the coordination from start to finish: scheduling, the order of the work, and the workmanship warranty on the roofing around every curb.

FAQ

Common questions.

Can't the HVAC unit just stay on the roof during a reroof?
No — and any roofer who suggests it is cutting a corner that will cost you later. The old roof surface has to come off completely, and the new waterproofing has to run under and around the curb flashing. You can't do that with the unit in place. A curb that isn't fully sealed into the new roof is a leak waiting to happen, especially during a New Mexico monsoon.
Who is responsible if the HVAC doesn't work after it goes back down?
The licensed HVAC contractor Paramount brings in is responsible for restarting the unit and confirming it runs correctly before they leave. Paramount is responsible for the roofing around the curb — the flashing, the roof surface, and the seal. We spell out who handles what upfront, so there's no finger-pointing after the job is done.

Planning a roof project? We handle this too.