Let me start with a confession. In early 2020, I took over facilities purchasing for a 350-person company. I manage maintenance and construction-related orders—roughly $150,000 a year across 12 vendors—and I report to both operations and finance. I thought the hard part of buying elevator service or railing was finding the best vendor. It isn't.
Our building has a KONE elevator. The service renewal was easy: I asked for a KONE elevator services quote, compared it to the prior contract, and sent it to finance. Then the rooftop terrace project landed on my desk. It included glass railing, a stair handrail replacement, and some aluminum support work. I told my boss we would find a glass railing OEM and get shop drawings. That took six months. Six months, three quotes, two redesigns, one delayed delivery, and one very awkward project status meeting.
What looked like a vendor problem
The easy conclusion was that we picked the wrong glass railing company. Not really. The failure started with our project description. We sent three suppliers what looked like a clear scope: “custom glass railing, roughly 42 linear feet, post-free look preferred.” That was it. No drawings. No load requirements. No glass type. No fixing positions.
Three quotes came back in March 2024: $28,000, $31,000, and $53,000. A spread that wide is rarely about greed. It’s about assumptions. One supplier included a continuous aluminum base shoe. Another switched to laminated glass because the railing was at the top of the structure. The third priced tempered glass and left the supports blank, because “custom” meant they expected real dimensions before quoting. Same two-sentence description. Three different projects.
The phrase that made me realize the real problem? “We’re an OEM.” Two different suppliers said it. One had its own extrusion line and could fabricate custom posts and rails in-house. The other used the term as marketing. I couldn’t tell the difference from their websites, because I had not asked the questions that separate the two.
A glass railing OEM is a capability, not a specification. A true OEM still needs the guard height, glazing type, edge support, loading conditions, finish, anchors, and applicable code. If you don’t provide those, they will each imagine a different project. If you’ve ever compared bids that should have been comparable and found a $25,000 gap, that’s probably what happened.
The same pattern in elevator components
I saw the same thing on the elevator side. A maintenance vendor recommended replacing a worn component in the car door operator. The quote described it as an “elevator components private label” replacement, meaning a part sold under the vendor’s own label rather than the original manufacturer’s part number. The price looked good. I approved it. That was my mistake.
The component was not part of the safety circuit, but it affected the door operator. It fit. It ran. For about three weeks, everything seemed fine. Then the door started occasionally reopening before closing. Not every cycle, but enough that people began complaining. When a second technician looked at it, he found the adjustment range of the private-label part sat close to the limit. And the subtle difference in the part’s arm dimension made it impossible to get the same closing behavior. He replaced it with the factory part. Total extra cost: roughly $1,500 once we included the extra visit, the replacement part, and my time explaining it to finance.
Let me be fair. Private label is not automatically terrible. We still accept it for things like lights, fans, and non-safety components. But “private label” is not a specification any more than “OEM” is. The useful phrase is “approved equivalent,” and that means someone with authority reviewed the technical details. I assumed it meant the vendor’s catalog said it was close enough. Those are two different things.
I’m not an elevator mechanic or an engineer, so I’m not going to pretend this is a complete elevator components specification guide. That document needs the people who actually design and maintain the elevator. But from a buyer’s perspective, the missing instruction was simple: state in writing whether you want a factory original part or an approved equivalent, and get that approval before you issue the order.
What vague specs really cost
Vague requirements don’t stay in the quote phase. They move downstream. The component or railing shows up, the installer does what they think is right, and the building operator discovers the mismatch later. At that point, you pay for the extra labor, the rework, the expedited freight, and sometimes the re-inspection. The most expensive line item is explaining to your boss why the savings weren’t real.
The same logic applies to railing. Elevator work is regulated by standards like ASME A17.1 in the U.S., and glass railing work is covered by the building code adopted by your local jurisdiction, often based on the IBC. I can’t interpret those codes from memory, and I shouldn’t. But I can make sure our purchase requests clearly reference them, so the vendor and the engineer are talking about the same rules.
What I changed in our process
The short answer is that I now treat purchasing as a documentation exercise first and a transaction second. Before I send a scope to a railing company, a component distributor, or a service vendor, I answer four questions:
- What is the installed condition? Model numbers, dimensions, drawings, and reference photos if possible.
- What standard applies? The elevator code reference, the local building code, or the manufacturer’s published guidance.
- What exactly am I requesting? A factory original, an approved equivalent, a private label component, or a custom-fabricated railing system.
- What documentation must come back? Technical data sheets, certificates, as-built details, and warranty terms.
If I can’t answer one of those, I pause. Not because I like paperwork. Because the price spread on our terrace project was normal, and I would rather spend money on engineering review at the beginning than on emergency labor later.
This is also why KONE elevator services makes sense for our building. Not because it’s the only option, but because the service record and component traceability are part of the agreement. That lets me point to actual inspection findings and approved parts when the next budget request comes around. But the record only stays valuable if we keep it accurate, which means the purchase order has to say exactly what was installed and what replaced it.
Bottom line? Vendor reputation matters. Price matters. But the thing that separates a smooth purchase from a six-month rooftop saga is the specification. Define it before you buy, and private label components can be useful, a glass railing OEM can do good work, and an elevator service renewal stays the easy decision it should be.