Repair or Replace? The 50% Rule for Rental Appliances

Start with the 50% rule. If a repair costs more than half of what a comparable new appliance would cost installed, and the old one is past the first third of its expected life, replace it. Otherwise repair it. Then adjust for the things the rule ignores: tenant downtime, owner approval, and what the rest of the building has.

That's the short version. The rest of this note is about using it on a real work order, with a tenant waiting and an owner who wants a reason.

How the 50% rule works for a rental appliance

The 50% rule compares two numbers: the all-in repair quote, and the installed cost of a replacement. If the repair is more than half the replacement, and the unit is old, replacing usually wins. It is a rule of thumb, not a formula, and it gets more useful once you add age.

Both numbers need to be honest.

The repair side is parts plus labor plus any second visit, not just the part. The replacement side is not the shelf price either. It's delivery, the carry up a walk-up, haul-away of the old unit, the hookup, and sometimes a gas connection that needs a licensed plumber. A range that looks cheap online can cost a lot more once it's in the kitchen and working.

Age matters because a repair buys you the remaining life of the appliance, nothing more. Spending a third of a new unit's cost on a refrigerator that's two years old buys you a decade. Spending the same third on one that's near the end of its life buys you a year or two, and then you're replacing it anyway.

A second check some managers use: multiply the appliance's age in years by the repair cost. If that number is bigger than the cost of a new installed unit, replace. It's crude, but it pushes in the right direction on older equipment.

A quick decision table

Here's how we'd read most situations, using the repair quote as a share of the installed replacement cost and the appliance's age as a share of its expected life.

The table gives you a default. The next section is about when to override it.

What the 50% rule leaves out

The rule only looks at the appliance. Your decision also has to account for the tenant, the owner and the building. These four factors change the answer more often than people expect.

Tenant downtime

A repair with the part on the truck can be done on the first or second visit. A replacement has to be chosen, approved, ordered, delivered and hooked up. In a sixth-floor walk-up or a building where deliveries need the freight elevator booked, that can stretch.

So the fastest option often wins, even when the math is close. The reverse is also true. If the repair part is backordered for weeks and a replacement can be in the kitchen in a few days, the backorder alone can flip the decision.

Repeat repairs on the same unit

Look at the unit's history before you approve another repair. If this is the second significant repair on the same appliance in a short stretch, add the two together and run the rule again. A dishwasher that needed a pump last spring and a control board now is telling you something.

This is where a repair log per unit pays for itself. Without it, every repair looks reasonable on its own.

Owner or board approval

Most managers can approve a repair under a set limit on the spot, while a replacement goes to the owner. That makes repair the path of least resistance, and it's how buildings end up paying three times to keep a dying refrigerator running.

If the numbers say replace, send the owner the numbers. A short note usually does it: the age, the repair quote as a share of replacement, and the repair history. Owners say yes to clear math faster than to "the tech thinks we should replace it."

Matching the rest of the building

If your other units have the same model, a matching replacement keeps parts and service simple. A one-off unit that's slightly different becomes its own small headache at every turnover.

Timing matters too. If the apartment turns over in two months, a modest repair now and a planned replacement during the turnover is often smarter than an emergency purchase today.

Energy use and who pays for it

Older refrigerators generally use more electricity than current models, so replacing an old one can lower the power bill. Whether that matters to you depends on who pays. In a building where each apartment has its own electric meter, the savings go to the tenant. In a master-metered building, they go to the owner, and that's a fair point to include in the case for replacement.

Don't lean on energy savings to justify replacing a unit that's otherwise fine. Use it to settle a close call.

Repairs that are almost always worth doing

Some faults are small parts on a sound machine, and repairing them is an easy call at nearly any age:

• Door gaskets on refrigerators
• Range igniters and burner valves
• Door switches and latches on dishwashers and washers
• Drain pumps and inlet valves
• Evaporator and condenser fan motors
• Thermostats and simple sensors

Then there are the repairs that sit at the expensive end and deserve the full 50% math every time. On a refrigerator, that's the sealed system: a failed compressor or a refrigerant leak. On a washer, it's worn tub bearings or a damaged tub. On any modern appliance, a main control board on an older unit is worth a second look, because boards for older models can be expensive and slow to arrive.

A rough way to sort them: if the fix is a part you could hold in one hand and it's in stock, repair it. If the fix means opening the sealed system or replacing the machine's brain, do the math.

Get a diagnosis you can actually decide from

You can only apply the rule if the technician gives you real numbers. Before you decide, a diagnosis should tell you:

1. What failed, in plain words, and what part fixes it
2. Whether that part is in stock or has to be ordered, and roughly how long
3. The all-in repair price, quoted before any work starts
4. The technician's honest read on the rest of the machine, for example whether the compressor is also showing its age

That last point is the one that gets skipped. A tech who fixes the drain pump on a dishwasher with a rusted-out tub has done the job they were asked to do, but they haven't helped you.

This is how we work for property managers. The service call is $145 and up, and it covers the visit and the on-site diagnosis. Repairs are quoted for your approval before we start, and when replacing a unit makes more financial sense than repairing it, we say so and leave the decision to you. You can see how we handle work orders, access and invoicing for buildings on the property managers page.

Common questions

Should I replace an appliance that's still under warranty? Almost never. If it's under warranty, start there, but check the terms first: many exclude multifamily or rental use. The 50% rule applies to what you'd actually pay.

What if the tenant wants a new appliance, not a repair? The tenant is owed a working appliance, not necessarily a new one. If the repair is sound and done promptly, that meets the need. If the same unit keeps failing, the tenant's frustration is one more reason to run the math again.

Is it worth repairing a refrigerator that's 15 years old? For a small part like a gasket, a fan motor or a defrost component, often yes. For a compressor or a refrigerant leak, almost never. Our refrigerator repair page covers what we see most in apartment units.

What to do next

Next time an appliance breaks, ask for the diagnosis in the four parts above, and put the repair quote next to an honest installed replacement cost. If you want us to do the diagnosis, open a work order with the building, the unit and a line about what stopped working, and we'll come back with numbers you can take to the owner.