Vegas Climate · Decisions

The $5,000 Rule: HVAC Repair vs. Replace in Las Vegas

Multiply your AC's age in years by the proposed repair cost. If the result is over $5,000, the rule says replace. Three Las Vegas scenarios walked through, plus the factors the rule doesn't capture.

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Quick answer
  • The $5,000 rule says: multiply your system's age in years by the proposed repair cost, and if the result is over $5,000, replace it.
  • A 12-year-old AC with a $500 repair equals $6,000 — over the threshold, so the rule says replace.
  • A 7-year-old AC with a $400 repair equals $2,800 — well under the threshold, so the rule says repair.
  • The rule is a starting point, not a hard answer; factor in leak history, refrigerant type, and remaining warranty.
  • R-410A systems facing rising refrigerant costs and lost rebates may justify replacement even when the dollar math says repair.
Section 01

Where the $5,000 rule comes from and how to use it

The $5,000 rule is a contractor rule of thumb that has been kicking around the trade for decades. The math is simple. Take the age of your AC or furnace in years and multiply it by the cost of the proposed repair. If the product is over $5,000, the rule says replace. If it is well under, repair. The idea behind it is to weight repair cost against remaining useful life. A $500 repair on a brand-new system is a no-brainer fix. The same $500 repair on a fifteen-year-old system that is already past expected lifespan is throwing money at equipment that will fail again soon. It is a starting point, not gospel. The rule does not account for energy efficiency gains from new equipment, available rebates, refrigerant transition costs, or how brutal the next summer will be on a marginal system. In Las Vegas, two extra factors should pull the threshold down from $5,000 toward $4,000 or even $3,500 for borderline cases. First, our summer load is punishing. An AC that limps through a repair will work harder here than the same unit in Portland or Pittsburgh. Second, the R-410A phase-down means refrigerant-related repairs on older systems will get more expensive every year. A leak repair on a 13-year-old R-410A system is rarely worth it even when the dollar math comes in under $5,000. Use the rule to anchor the conversation with whoever is quoting you. If a contractor's recommendation strays far from where the math points, ask why. The reason should be specific and verifiable, not just 'you should replace.'

Section 02

Three Las Vegas scenarios walked through

Scenario one. Seven-year-old Trane heat pump in a Summerlin tract home. Capacitor died mid-July, and the contractor quote includes a hard-start kit and a new contactor for $425 total. Math: 7 × $425 = $2,975. Well under threshold. Repair. The unit is mid-life and the repair addresses a known wear part. We would do this without hesitation. Scenario two. Twelve-year-old Goodman split system in Henderson. Outdoor coil leaking, contractor quote to replace the coil and recharge with R-410A is $2,100. Math: 12 × $2,100 = $25,200. Massively over threshold. Replace. The system is on the back half of its expected lifespan, R-410A is being phased out, and the coil repair does nothing about the rest of the aging system. Putting $2,100 into a coil now buys maybe three more summers, then the compressor will fail and you are back at the same crossroads with no remaining R-410A rebates available. Take the replacement path, capture the federal 25C credit and NV Energy rebate, and stop the bleeding. Scenario three. Ten-year-old Lennox in North Las Vegas. Blower motor failed, contractor quote is $650 to replace. Math: 10 × $650 = $6,500. Just over threshold by the strict rule. Borderline. Here the call depends on the rest of the system. If the AC is otherwise healthy, refrigerant pressures are fine, and no other repairs have been needed, repair is reasonable. If the system has had two or three other service calls in the last few years, or there is a slow leak the tech can hear, replacement starts looking better. This is exactly the case where you want a second opinion, which is why we offer one free.

Section 03

What the rule doesn't capture (and why a second opinion helps)

The $5,000 rule handles the obvious cases well. It struggles with the gray zone where age, repair cost, and condition all sit in the middle. Several factors the rule ignores can swing the decision either way. Refrigerant matters. An R-410A system facing its second leak repair in three years is more replace-worthy than the same-age system with R-454B, because R-410A prices will only go up. Rebate eligibility matters. If you are sitting on a perfectly serviceable but old system and NV Energy has a generous heat pump rebate window plus the federal 25C credit lines up, the effective replacement cost drops by $2,500 to $4,000, which changes the math entirely. Warranty matters. Repairs on systems still under parts warranty are essentially free for parts; you are only paying labor. Conversely, repairs out of warranty mean you carry full risk on the next failure too. Then there is the soft stuff. How loud is the system getting? Are summer bills creeping up year over year, suggesting reduced efficiency? Has comfort dropped in upstairs bedrooms? Have humidity swings during monsoon season gotten worse? These signal a system in decline that the strict dollar math will not catch. This is why our standard offer for any system over eight years old facing a real repair cost is a free second opinion. Bring us your contractor's diagnosis and quote. We will inspect the system, verify the diagnosis, check refrigerant pressures, look at age, leak history, warranty status, and rebate options, and tell you straight whether to repair or replace. No pressure to use us for either path. If repair is the right answer, we will say so. If replacement is, we will show you the rebate stack and let you decide.

When to call us

The next step.

If you have a repair quote in front of you and the dollar amount feels uncomfortable, call us at 702-227-5622 for a free second opinion. We will run the math with you, factor in age, refrigerant, and rebates, and give you a straight answer on whether the repair is worth it.

Book a Free 2nd Opinion702-227-5622
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