Short answer: The Cooling Company replaces aging commercial HVAC systems across Henderson, from Green Valley medical and office suites to West Henderson industrial and Water Street retail. We assess what you have, tell you honestly whether to replace or keep repairing, recover the old refrigerant, crane down the dead rooftop units, and set right-sized high-efficiency replacements that fit your existing curbs, ductwork, and electrical. Most swaps happen after-hours and zone by zone so your business never goes dark. Licensed in Nevada since 2011 (C-21 #0075849 and C-1D #0078611, bid limit $700,000), rated 4.8 stars across 858-plus Google reviews. Call (702) 567-0707 for a replacement assessment.
A lot of Henderson's commercial building stock went up in the 1990s and early 2000s, and the rooftop units that came with those buildings are now past their useful life. If you own or manage a Green Valley office, a Water Street retail bay, or a West Henderson warehouse, the equipment on your roof may be running on borrowed time, an obsolete refrigerant, and efficiency ratings that bear no resemblance to what is available today. Replacement is a different job than new installation, and The Cooling Company treats it that way.
Replace or keep repairing? How we decide
Not every aging unit needs to come out today. Before we quote a replacement, we figure out whether your existing system has runway left or whether you are throwing good money after bad. A few signals push the decision toward replacement:
- Age. Commercial rooftop units in the Mojave rarely make it past 15 to 20 years, and desert dust, hard water, and relentless summer runtime shorten that. A unit from the early 2000s is on the back nine.
- R-22 refrigerant. If your system still runs on R-22, that refrigerant has been phased out of production. What is left is expensive and getting more so, which means a single charge after a leak can cost more than the repair is worth.
- Rising repair frequency. When the same unit is back on the service ticket two or three times a season, the repairs start to add up to a payment on a new unit that would not break down.
- The repair-cost logic. A useful gut check: when a single repair on an old unit runs into the thousands, multiply the repair cost by the unit's age in years. If that number dwarfs the cost of replacing, replace. On commercial gear the math tilts toward replacement even faster because downtime costs you revenue.
- Efficiency decline. A 20-year-old unit was never efficient by today's standards, and worn compressors and fouled coils make it worse every year. You pay that gap on every NV Energy bill through a 110-plus degree summer.
We tell you plainly when a repair is the right call and when it is not. If your unit has years left and a single failed component, we fix it. The goal is to protect your capital, not to sell you a rooftop unit you do not need yet.
Assessing the system you already have
Replacement starts with what is on the roof and in the mechanical room right now, not with a blank page. We walk the building and assess the existing equipment in detail: the rooftop packaged units, any split systems serving back offices, and VRF or ductless gear in newer tenant improvements. We pull the nameplate data, check the refrigerant type, inspect the curbs and roof penetrations, trace the existing ductwork and electrical service, and note how each zone is controlled today.
That assessment tells us what can be reused and what has to change. Sometimes the curb and ductwork are sound and only the unit needs to come out; sometimes the old electrical feed is undersized for a modern high-efficiency unit. Knowing this before we order equipment keeps a replacement from turning into a surprise mid-job.
Removing and disposing of the old equipment
Getting the old unit out is real work, and on a Henderson rooftop it has to be done right. Before anything comes down, we recover the existing refrigerant per EPA requirements rather than venting it, which is both the law and the responsible thing to do, especially with R-22. We then disconnect the electrical and gas, break the unit free from its curb, and crane the old rooftop unit down to a staged spot in the lot. Crane and rigging logistics get planned up front: roof access, a safe lift path, parking lot staging, and timing that does not block a busy retail center's customers or a warehouse's truck dock. The old equipment is hauled off and disposed of properly, with metals recycled where possible, leaving a clear curb ready for the new unit.
Matching the new unit to your existing curb, ductwork, and electrical
This is where replacement gets genuinely tricky. The new unit has to land on the curb you already have, tie into the ductwork that is already there, and run on the electrical service in place. Modern rooftop units often have a different footprint than the 20-year-old unit they replace, so a clean drop-in is the exception, not the rule.
We solve that with engineered adapter curbs that bridge the old roof opening to the new unit's footprint, sealed and flashed so the roof stays watertight. We adapt the supply and return connections to the existing duct and verify the electrical and breaker sizing against the new unit, upgrading where needed. Retrofit challenges like a heavier unit, a different gas connection, or controls that must talk to your existing building automation system get worked out in the plan, not discovered on install day.
Right-sizing on replacement (most old units are oversized)
Here is the mistake almost every like-for-like replacement makes: it matches the old tonnage. The original unit was very often oversized in the first place, sized off a rule-of-thumb rather than a real calculation, and an oversized commercial unit short-cycles, struggles with humidity control, wears its compressor out faster, and wastes capital you did not need to spend.
Replacement is the one moment you get to fix that. We run a fresh Manual N commercial load calculation on the building as it exists today, accounting for current glazing, occupancy, plug and process loads, and Henderson's roughly 108 to 110 degree design conditions. Buildings change: a warehouse becomes a distribution center with more equipment heat, an open office gets carved into dense medical suites. The right replacement is sized to the building you have now, which frequently means a smaller, smarter, properly staged unit rather than a blind copy of the old tonnage.
Phased, after-hours swaps that keep you running
Most Henderson businesses cannot close while the HVAC gets replaced. A medical office has appointments, a restaurant has covers, a warehouse has trucks rolling. We schedule the disruptive work, the crane lifts and electrical cutovers, for nights, weekends, and off-peak windows. On a multi-unit rooftop replacement we go zone by zone, pulling and replacing one unit at a time while the rest of the building stays conditioned, so the swap happens around your operation instead of shutting it down. For a single critical unit, we keep the gap between old-unit-down and new-unit-running as short as the lift and tie-in allow, often a single off-hours window. The aim is zero or minimal downtime, planned in advance.
The ROI of a capital replacement
Replacing an old low-EER rooftop unit with a modern high-IEER one is a capital decision, and it should pencil out. We select replacement equipment on the ratings that matter for commercial part-load and peak performance, IEER and EER at our real desert design temperatures, not just the headline number on the brochure. Where it pays back, we add economizers, variable-speed or multi-stage compressors, demand-control ventilation, and building automation controls that cut your summer power draw.
The savings from moving off a worn, oversized, 20-year-old unit to a right-sized high-efficiency replacement show up on every NV Energy bill, and we walk you through any current NV Energy commercial efficiency incentives that apply so the rebate is part of the plan. We are also straight about the payback window rather than promising savings that are not real. For new buildouts and added capacity rather than swaps, see our commercial HVAC installation in Henderson page; for the full picture across the valley, see our commercial HVAC replacement hub.
Henderson commercial HVAC replacement FAQ
How do I know whether to replace my commercial unit or just repair it?
We assess age, refrigerant type, repair history, and efficiency. If your unit is past 15 years, runs on phased-out R-22, is back on the service ticket every season, or a single repair runs into the thousands on already-old equipment, replacement is usually the smarter spend, especially once you factor in the downtime an old unit costs you. If it has real runway left and one failed part, we fix it.
My rooftop units run on R-22. Do I have to replace them?
Not the instant you read this, but you should plan for it. R-22 has been phased out of production, so the supply is shrinking and the price is climbing, and a single recharge after a leak can cost more than the old unit is worth. Replacing R-22 equipment with a modern refrigerant gets you off that cost curve and onto far better efficiency at the same time.
Can a new unit reuse my existing curb and ductwork?
Often yes, with the right adapter. Modern rooftop units frequently have a different footprint than the unit they replace, so we use an engineered adapter curb to bridge the old roof opening to the new unit and adapt the duct connections, sealing and flashing everything so the roof stays watertight. Where the existing electrical or gas service does not match, we address that as part of the scope.
Will replacing my HVAC shut my Henderson business down?
It does not have to. We schedule crane lifts and cutovers for nights, weekends, and off-peak hours, and on multi-unit jobs we replace one zone at a time while the rest of the building stays cool. Most replacements happen with zero or minimal downtime, planned around your operation in advance.
Should the replacement be the same size as my old unit?
Usually not, and this is the best reason to use a qualified contractor. Old commercial units were very often oversized off a rule-of-thumb, which causes short-cycling and wasted energy. We run a fresh Manual N load calculation on your building as it exists today, which frequently calls for a right-sized, properly staged unit rather than a blind copy of the old tonnage. Replacement is your chance to correct a sizing mistake you may have been paying for the whole time.
Get a commercial HVAC replacement assessment for your Henderson property
Whether it is failing rooftop units on a Green Valley office, R-22 equipment at the end of its life on a Water Street retail center, or worn-out units on a West Henderson warehouse, The Cooling Company will assess what you have, tell you straight whether to replace or repair, recover the old refrigerant, crane down the dead units, and fit a right-sized high-efficiency replacement to your existing curbs and electrical without shutting you down. Licensed in Nevada since 2011, 4.8 stars across 858-plus Google reviews, and a $700,000 bid limit that covers serious commercial work.
Call (702) 567-0707 to schedule a commercial HVAC replacement assessment for your Henderson property.
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