Short answer: The Cooling Company replaces aging and failing commercial HVAC systems across Downtown Las Vegas, from the government core around City Hall and the Regional Justice Center to historic offices, Fremont East venues, Symphony Park, and the medical district. We assess whether an old unit is worth repairing or has reached end of life, phase out obsolete R-22 equipment, right-size the new system with a fresh Manual N calculation because old downtown units are frequently oversized, verify the roof can carry modern equipment, reuse sound curbs, ductwork, and electrical, remove and dispose of the old gear responsibly, and phase the swap so tenants and government offices keep running. Licensed in Nevada since 2011 (C-21 #0075849, C-1D #0078611), $700,000 bid limit, rated 4.8 stars across 835+ reviews. Call (702) 567-0707.
When a commercial system in an older downtown building starts failing, the real question is rarely "what do we install." It is "is this worth replacing yet, and if so, how do we do it without shutting the building down." That decision is the heart of commercial HVAC replacement, and it looks very different from a clean new install. You are working around a system that already exists, equipment that may be decades old, refrigerant that may no longer be practical to recharge, and a tenant who cannot lose conditioned air for a single business day.
When to replace instead of repair
A commercial rooftop unit or split system does not fail all at once. It declines: compressors short-cycle, capacity fades, energy bills creep up, and repair calls get more frequent and more expensive. The honest replacement conversation weighs a few signals together rather than reacting to one breakdown.
- Age against service life. Commercial rooftop units typically run fifteen to twenty years, and the brutal Las Vegas summer load pushes equipment toward the shorter end of that range. A unit past its expected life that needs a major component is usually a replacement candidate, not a repair.
- The cost of the next repair. When a single repair, especially a compressor or coil on an old unit, approaches a meaningful share of replacement cost, repairing it just buys time on equipment that will keep failing.
- Repeat failures. Two or three service calls in a season on the same unit is the system telling you it is at the end.
- Efficiency decline. An old unit running a worn compressor and degraded coils can use far more energy than a modern replacement to deliver less cooling. In a building that runs cooling most of the year, that gap shows up on every utility bill.
- Obsolete refrigerant. If the system runs on R-22, every leak repair gets harder and more expensive until recharging stops making financial sense.
R-22 phase-out and refrigerant obsolescence
A large share of older downtown equipment was built to run on R-22, the refrigerant phased out of production and import in the United States. R-22 is no longer manufactured domestically, so the only supply is reclaimed and dwindling, and its cost has climbed accordingly. The practical consequence: when an R-22 system springs a leak, you pay a premium to recharge a unit that will likely leak again. Throwing expensive, hard-to-source refrigerant into aging equipment is rarely the smart capital decision.
Replacement moves the building onto current refrigerants and current efficiency standards in one step. Newer equipment uses refrigerants that are readily available and is designed around far better part-load efficiency, which matters here because downtown systems spend most of the year running at partial capacity rather than flat out. We assess what refrigerant your current equipment uses and factor obsolescence directly into the repair-versus-replace recommendation.
The challenge of replacing equipment in older downtown buildings
Downtown Las Vegas is mostly older building stock, which makes replacement harder than dropping a matching unit onto a new pad. The constraints are real and they have to be solved before the crane shows up, not discovered during the lift.
- Constrained roofs and structural load. Modern high-efficiency equipment can weigh more than the unit it replaces. Before we set anything, we verify the existing roof structure can carry the new load. If reinforcement or a new curb adapter is required, that is in the plan up front.
- Tight mechanical rooms. Older buildings were not designed around today's equipment footprints. Sometimes the original mechanical space will not take a like-for-like modern unit, and the answer becomes a different system type rather than a forced fit.
- Narrow streets for crane access. Fremont, Carson, and the surrounding blocks are dense and busy. A rooftop swap means a permitted crane lift, usually scheduled before dawn and coordinated with the property and the city so the street reopens quickly.
- Legacy and oversized systems. Some downtown buildings still carry oversized packaged units sized by rule of thumb decades ago, and a few of the oldest structures carry legacy steam or hot-water infrastructure that has to be evaluated rather than assumed.
This is the same building stock we work in for new retrofits; you can read more about ground-up commercial HVAC installation downtown on our Downtown Las Vegas commercial installation page. Replacement differs in that the existing system, its curb, its ductwork, and its electrical are part of the equation from the first site visit.
Right-sizing the replacement
The biggest mistake in a commercial replacement is assuming the new unit should match the tonnage of the old one. Old downtown systems are frequently oversized, sometimes badly, because they were sized conservatively years ago or because the building's use has changed since. Swapping like-for-like just perpetuates the problem. An oversized unit short-cycles, never dehumidifies properly during monsoon season, wears its compressor out faster, and costs more to run while delivering worse comfort.
So every replacement starts with a fresh Manual N commercial load calculation that reflects the building as it is today: orientation, glazing, insulation, real internal heat gains from people and equipment, any kitchen exhaust, and the punishing summer design temperature this valley actually hits. We size the replacement to the building, which often means the right new unit is smaller and far more efficient than the one it replaces.
Matching to existing curbs, ductwork, and electrical
A clean replacement reuses what is sound and replaces what is not, and that is where a heavy retrofit becomes manageable. Where the existing roof curb is in good condition and dimensionally compatible, a curb adapter lets a modern unit land on it without rebuilding the roof opening. Where the existing ductwork is intact and correctly sized, we reuse and seal it rather than tearing it out. Where the existing electrical service, disconnects, and whip are adequate, we keep them.
The honest part is knowing when reuse is false economy. An undersized duct system feeding a new high-efficiency unit chokes its performance, and an old electrical feed that cannot support the new equipment has to be upgraded. We evaluate each of those, tell you plainly what can carry forward and what has to change, and price the heavy-retrofit elements up front so there are no surprises after the old unit is already on the ground.
Removing and disposing of the old equipment
Replacement includes getting the old system off the building responsibly. We recover the refrigerant from the existing unit properly rather than venting it, which is both the law and the right thing to do, especially with R-22. We then rig the old unit down, often on the same crane visit that sets the new one, and dispose of or recycle the old equipment so the owner is not left with a dead unit on the roof. The site is cleaned up and the new system is the only thing left behind.
Phased, after-hours swaps that keep the building running
The single hardest requirement downtown is also the most common: keep the tenants running. Government offices, courtrooms, restaurants, clinics, and venues cannot lose a day. Our standard approach is a phased cutover. We stage the new equipment, prep connections, and do everything possible before we ever interrupt the existing system, then make the final swap in a tight, scheduled window, frequently after hours or overnight, so the business loses as little conditioned air as possible.
For multi-unit properties we sequence the replacements so only one zone is ever offline at a time. When the swap is complete we commission the new system, verify airflow and temperatures across zones, document the equipment, and hand the building off to a maintenance plan so the replacement performs through its first Las Vegas summer and every one after.
The capital case for replacing old downtown stock
Replacement is a capital decision, so it deserves to be framed as one. An aging, oversized, R-22 unit is a recurring liability: rising repair frequency, premium refrigerant costs, energy waste from a worn compressor and degraded coils, and the operational risk of a failure during a 110-degree week. A right-sized, high-efficiency replacement attacks all of that at once, with lower energy use across a building that runs cooling most of the year, fewer service calls, no obsolete-refrigerant exposure, and predictable performance through peak summer load. We will not invent a payback figure for your building, but we will lay out the equipment, the efficiency improvement, and the scope honestly so you and your finance team can make the call with real numbers from your own utility history.
The downtown buildings we replace systems in
We handle commercial replacement across the full range of downtown property: the government and civic core around City Hall and the Regional Justice Center, where courtrooms and records storage carry strict ventilation needs and often run on aging built-up systems; historic office buildings with constrained roofs, closet-sized mechanical rooms, and original ductwork; Fremont East and Arts District restaurants and bars, where a kitchen replacement has to keep make-up air balanced against the grease hood exhaust; Symphony Park development; and the medical district around Valley Hospital, where exam and procedure spaces need fresh air and filtration a failing old system cannot maintain.
Frequently asked questions
How do I know whether to repair or replace my commercial HVAC unit?
It comes down to age, the cost of the next repair, and how often the unit is failing. A system past its fifteen-to-twenty-year service life that needs a major component like a compressor or coil is usually a replacement candidate, because repairing it just buys time on equipment that will keep failing. Repeat breakdowns in a single season, climbing energy bills, and obsolete R-22 refrigerant all push the math toward replacement. We give you an honest assessment rather than defaulting to the bigger job.
My system uses R-22. Do I have to replace it right now?
Not necessarily today, but R-22 is no longer produced in the United States, so the only supply is reclaimed and getting more expensive. Every leak repair costs more and is harder to source, and you are recharging equipment that will likely leak again. For most aging R-22 units, replacing rather than continuing to recharge becomes the better capital decision once leaks start.
Will the new unit be the same size as the old one?
Often it should not be. Old downtown systems are frequently oversized, which causes short-cycling, poor humidity control, and higher running costs. We run a fresh Manual N load calculation on the building as it is used today, and the right-sized replacement is often smaller and more efficient than the unit it replaces.
Can you reuse my existing roof curb, ductwork, and electrical?
Where they are sound and correctly sized, yes. A curb adapter often lets a modern unit land on a good existing curb without rebuilding the roof opening, intact ductwork can be reused and sealed, and adequate electrical can carry forward. Where something is undersized or worn, we include the upgrade in the scope, because reusing an inadequate duct or electrical feed would choke a new high-efficiency unit.
How do you replace our system without shutting our offices or restaurant down?
We phase the work. The new equipment is staged and prepped while the existing system keeps running, then the final cutover happens in a short, scheduled window, frequently after hours or overnight. On multi-unit properties we sequence the swaps so only one zone is offline at a time. This is how we replace systems for courts, clinics, government offices, and restaurants that cannot afford to close.
Schedule a commercial HVAC replacement assessment
If you own or manage a building in Downtown Las Vegas with an aging, inefficient, or R-22 commercial system, The Cooling Company can assess whether it is time to replace, right-size the new equipment, reuse what is sound, remove the old unit responsibly, and phase the swap so your tenants never lose a day. You can also explore our broader commercial HVAC replacement services. We have been licensed in Nevada since 2011 and carry the C-21 (#0075849) and C-1D (#0078611) classifications with a $700,000 bid limit. Call (702) 567-0707 to schedule a site visit and replacement assessment.
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