The Tuesday Email That Started It
The subject line read: "Need quote: Otis grey glasses for elevator lobby railings, floors 2-7."
I stared at it for a minute. Another "Otis elevator" mix-up? Because our company is Otis Supply, an independent distributor not affiliated with Otis Elevator Company, we get those emails all the time. But "grey glasses"? That was new. Turns out some contractors use "grey glasses" to mean grey glass infill panels for railing systems. Not eyewear. I learned that the hard way.
The request was part of a larger quote for a mixed-use building: elevator components, a bulk air handling unit, some ductwork, thermostat controls, and the glass railings. The customer was a regional mechanical contractor I'd worked with before. He was in a hurry. And I wanted to keep his business.
That combination (fast customer, ambitious quote, and too many product categories) was a recipe for exactly what happened next.
I Thought I Could Quote It From Memory
I've been handling MEP component orders for six years. Maybe 180 orders, give or take; I'd have to check the system. Most of what we sell for the "elevator" line is non-proprietary stuff: guide rails, brackets, cab interior accessories, landing doors (components that fit with major elevator systems but aren't manufacturer-specific).
For HVAC, we supply air handling units, ductwork, and controls. This is where my background is solid but not engineering-level. I'm not a mechanical engineer, so I can't speak to detailed load calculations. What I can tell you from a procurement perspective is this: if you quote an AHU without reading the project's ventilation systems specifications, you're rolling dice.
That's what I did.
I looked at the customer's message, made a few assumptions based on previous jobs, and put together a line for a bulk air handling unit that matched the size and cfm range we'd quoted before. The thermostat controls? I picked the same 24-volt commercial thermostats we'd used on another project. The ductwork was standard sheet metal, no red flags. The elevator components were routine.
The only line I checked more than once was the "Otis grey glasses." That's because I had no idea what it meant. (Again: glass railing infills. Got it.)
I sent the quote the same day. Fast, easy, done.
The Engineer's Reply
Three days later, the customer's engineer replied. Not with a PO.
"Where did these ventilation systems specifications come from? The AHU needs seismic isolation, and the controls are supposed to be low-voltage communicating, not conventional 24V. Also, the 'grey glasses' are 10mm tempered glass infills with a specific mounting detail, not standard railing frames. The installation has to follow NFPA 90A and ASHRAE 62.1, and this unit as quoted doesn't meet the layout."
I read that message a few times. Then I called the customer.
He was polite but not happy. "I assumed you had access to the full spec package," he said. "The architect sent it last week. I forwarded the relevant pages to you."
He had. I scrolled back through my inbox and found it. There it was, a PDF with the complete ventilation systems specifications, controls schedule, and railing details. I just hadn't opened it. Sound familiar? It should. We all skip the attachment when we think we already know the answer.
The bulk air handling unit was specified as a custom unit with seismic isolation curbs, HEPA filtration, and a specific controls interface. The thermostat controls were to be BACnet communicating thermostats, not the 24V standalone models I'd quoted. And the "Otis grey glasses" were indeed 10mm grey tempered glass infill panels for the lobby railings, which needed special clips, not standard glass railing frames.
I had been in such a hurry to show I was responsive that I'd missed the actual requirements. That's the most expensive kind of speed.
The Damage (and What Saved Us)
The revised quote was materially different. The bulk air handling unit alone was about 18% more than my initial line. The thermostat controls went from roughly $90 each to roughly $180 each. And the glass railings needed different clips and a longer lead time.
The customer didn't cancel. We admitted the mistake, reprinted the quote with the correct assumptions, and paid for an expedited review ourselves. That cost us around $3,100 (maybe $2,800, I'd have to check) in engineering time and overnight courier fees. The project schedule slipped by about two weeks. That wasn't devastating, but it was embarrassing.
And it was completely preventable.
Why didn't the customer just move to another supplier? He told me later: we were one of the few distributors that carried the elevator components and the AHU in the same order, and he didn't want to resync two vendors. We got a second chance because of the breadth of our catalog, not because of my quoting skills. (Surprise, surprise.)
The Checklist That Changed How We Quote
After that order, I sat down with our team and built a pre-quote checklist. We've now used it on every project quote for the past eight months. We've caught 47 potential errors: missing voltages, wrong ductwork gauges, unspecified glass tint, you name it.
It's simple. For every line item, we ask:
- Is this item explicitly written in the project spec, or am I assuming it?
- Have I confirmed the control protocol and voltage for all HVAC controls?
- Does the item include required accessories (seismic curbs, clips, brackets) or is that a separate line?
- Has an engineer reviewed the substitutions we propose?
We also started creating simple guides to share with customers. One is our thermostat controls specification guide (a one-page doc that walks through common thermostat types, voltage, and control protocols). Another is a ventilation systems specifications checklist for AHU and ductwork quotes. They're not engineering documents. They're procurement tools. They help customers ask better questions, and they help us avoid quoting the wrong thing.
I'd rather spend 10 minutes explaining options than deal with mismatched expectations later. An informed customer asks better questions and makes faster decisions.
What I'd Tell Another Procurement Guy
It took me six years and a few expensive mistakes to understand that vendor relationships matter more than vendor capabilities. Capabilities are easy to list on a website. Relationships are built on the uncomfortable stuff: calling a customer to say, "I missed a spec, and here's the corrected quote."
This worked for us, but our situation is specific: we're a mid-size distributor with a predictable project mix and a catalog that's broad enough to be useful but not infinite. If you're dealing with one-off custom builds or a giant centralized procurement department, your checklist will look different. I can only speak to the supply side of the fence.
And if you're searching "Otis grey glasses" looking for glass railing infill panels, or even if you're just checking whether we're the elevator company, now you know. We're the building-supply Otis: elevator components, HVAC, ductwork, controls, railing systems, stair systems. Not the elevator manufacturer. Not eyewear. And definitely not a company that will quote a bulk air handling unit without reading the ventilation systems specifications again.
This post is based on my own experience on the supply/quoting side, not engineering advice. I'm not a mechanical engineer, so I can't speak to detailed compliance. That gets into engineering territory, which isn't my expertise. I'd recommend consulting the responsible engineer before finalizing any equipment selection.
