Everything I'd read about procurement said to standardize everything. In practice, I found the opposite.
The conventional wisdom is that you buy the same stuff the same way, every time. That works for office paper and glass cleaner. For elevator components? It's a path to expensive surprises. As a quality compliance manager reviewing over 200 unique line items annually for a major elevator manufacturer, I've learned the hard way that comparing a safety-critical kone elevator maintenance contract to a simple Amazon purchase for door weather stripping is like comparing a surgeon's scalpel to a butter knife. They both cut things. That's where the similarity ends.
The Core Mistake: Treating Everything as a Commodity
The biggest pitfall I see is when facility managers or building owners apply the same thinking to buying kone spare parts as they do to buying glass cleaner. They see a price, a product name, and assume they're getting the same thing. They think the comparison is simple. It's not.
Let's use a real-world example. When someone asks me, "How much does a king kone machine cost?" my first question is always: "What's the alternative?" Are you comparing the OEM part to a generic substitute? Or are you comparing the cost of the part itself to the cost of not having it—the downtime, the safety risk, the potential for a catastrophic failure that costs more than the entire building's cleaning budget for a year?
That's a different comparison than asking, "How much does a bottle of glass cleaner cost?" With glass cleaner, the biggest risk is a streak. With an elevator part, the risk is a shutdown. Or worse.
Dimension 1: Specification vs. Generalization
Let's start with the most obvious dimension: the spec.
With glass cleaner, the spec is simple: it should clean glass. You might have preferences—ammonia-free, streak-free, eco-friendly—but generally, one bottle works as well as another. You can substitute brands easily. The risk is low.
With a kone elevator maintenance part, say a specific door operator or a circuit board for a king kone machine, the spec is everything. It's not just about fit. It's about compatibility with the proprietary logic, the safety certifications, the specific voltage requirements. A generic part might fit physically but fail to communicate with the system, causing erratic behavior. We received a batch of 50 door rollers where the rubber composition was visibily off—the Shore durometer was 85A against our spec of 90A. The vendor claimed it was 'within industry standard.' Normal tolerance is ±2A. We rejected the batch. They redid it at their cost. Now every contract includes the specific durometer requirement.
The conclusion: For general items, specs are a suggestion. For elevator parts, they are the law. If you can't verify the spec, you shouldn't buy the part.
Dimension 2: The Price Illusion (You're Not Asking the Right Question)
This is where the hidden fees trap gets most people. I've learned to ask 'what's NOT included' before 'what's the price.'
Consider door weather stripping. You buy a roll. Maybe it comes with the adhesive. The price is the price. If it doesn't, you go to the hardware store and get glue. The total cost is usually within your mental estimate.
Now compare that to a kone elevator maintenance quote. Someone needs to diagnose the issue. That's a service call—usually $150-300 just for someone to show up. The part might be $400. But do you need a permit for the work? The fee varies by city. Does the work take longer than 2 hours? That's an overtime charge. Does the technician need to reprogram the controller? That's an additional programming fee. And if the part is obsolete—which happens frequently with elevators installed 20 years ago—you might be looking at a modernization kit that costs $8,000, plus installation.
I only believed in asking for a full, itemized scope of work after ignoring it and approving a 'simple' $500 repair. The final invoice was $1,400. The 'cheap' quote ended up costing 30% more than the 'expensive' one from a competitor who listed all fees upfront.
The conclusion: The vendor who lists all fees upfront—even if the total looks higher—usually costs less in the end. The best price on a part is meaningless if the total cost to 'have it working' is a black box.
Dimension 3: The Cost of Being Wrong
This is the dimension that completely shifts the argument.
What happens if you get the wrong door weather stripping? You have a draft. You lose a bit of heating efficiency. Maybe you hear a little whistle in the wind. The total cost is maybe $50 in wasted material and a bit of annoyance.
What happens if you get the wrong king kone machine gasket or seal? Or if a kone elevator maintenance team uses a part that wasn't engineered for the exact load cycle of your building?
A faulty seal can lead to fluid leaks. Fluid leaks can cause brake failure. Brake failure is a safety incident. The cost of a safety incident isn't just the repair; it's the investigation, the legal fees, the potential for a fine from OSHA or your local safety inspector, the increase in your insurance premium, and the loss of tenant trust. You can't 'return' a safety failure. That quality issue cost a colleague at another firm a $22,000 redo and delayed their entire building's safety certification by three months.
The conclusion: The risk profile changes the entire value equation. A $50 part with a 1% chance of failure is a no-brainer for your door. A $50 part with a 1% chance of causing a shutdown is a risk that makes the $200 OEM part look like a massive bargain.
So, How Do You Make the Choice?
I run a blind test in my head. I imagine I have two options: the 'office supply' approach (buy cheap, replace often, low risk) vs. the 'elevator spec' approach (buy exact, verify thoroughly, high accountability).
Here's how you decide:
- Use the 'Office Supply' approach when: The item is generic, the consequence of failure is annoyance (not danger), and there are no certification or liability ties. Examples: Glass cleaner, basic weather stripping, paper towels, standard light bulbs for hallways. In my opinion, this is where you should go for the lowest acceptable price. Don't over-spec a paper towel.
- Use the 'Elevator Spec' approach when: The item is critical to safety, integrated into a complex system, or carries a liability chain. Examples: Any component in an elevator or escalator drive system, fire suppression system parts, emergency lighting circuits, critical brake pads—even if for a door.
For the specific question about kone products: treat every single component as if it's part of the safety system. Because it is. Don't ask me 'how much does a kone elevator maintenance visit cost?'—ask 'what is the total cost of having a fully certified, safe, and operational elevator, including all fees, for the next year?' That's the number you should compare. And if you're comparing a king kone machine part from a non-authorized reseller? Take that price with a grain of salt. The hidden cost might be your safety record.
Everything I'd read about cost-saving said to use the same procurement strategy for everything. In practice, I found that the best strategy is to know when to stop shopping and start specifying.
