Last quarter, I lost $2,300 on a job because I quoted a low number and hoped change orders would cover the difference. They did. But the client felt ambushed, the installer got blamed, and I almost lost an account I'd had for seven years. I don't do that anymore.
I'm a service manager at a commercial HVAC company. In eight years, I've handled more than 200 rush jobs, including same-day compressor swaps for a medical office and a data center. I know what a real emergency looks like. It looks like a facility manager standing next to a dead AAON water source heat pump and asking if we can have it running before Monday. And I know what makes it worse: a quote that didn't tell them what they'd actually pay.
I now quote the full, worst-case price first. If that loses the job, so be it. It was the wrong fit.
The Most Expensive Question in HVAC
The question everyone asks when they need AAON HVAC units is 'What's your best price?' I used to answer with a number. Now I ask a better question: 'What's included in that price?'
Most buyers focus on per-unit pricing and completely miss the cost of getting a unit onto a roof, tying it into controls, and making it actually run. The gap between 'equipment price' and 'installed cost' is where jobs go wrong. On a typical commercial rooftop replacement, the unit itself may be only 50 to 55 percent of the total. The rest is crane time, rigging, curb adapter, duct transition, line set, refrigerant, electrical disconnect, controls wiring, startup, and commissioning. A quote that looks too good is usually just a quote with fewer line items.
That's why I tell clients to compare scopes, not just numbers. Two quotes for the same AAON HVAC units can look wildly different and still both be correct—on paper. The question everyone asks is 'Which one is cheaper?' The question they should ask is 'Which one is complete?'
What a Real AAON Water Source Heat Pump Quote Includes
Let's use an AAON water source heat pump as an example. I sell them because they're efficient and reliable for commercial buildings with a closed-loop water system. But the pump package isn't a plug-and-play appliance. When I quote one, I include:
- A loop pressure and flow check. If the loop is undersized, the unit won't get the water flow it needs.
- A control sequence. If you want a simple thermostat, I'll tell you the limitation. If you want BACnet integration, I'll quote the gateway.
- Refrigerant charge and field piping. AAON units ship with a factory charge, but the line set is not automatically included.
- Startup by a technician who knows the unit. I do not include 'we'll drop it and figure it out later.'
I'll give you a real example. In March 2024, we pulled a failed compressor out of an AAON water source heat pump 36 hours before a state inspection. Normal lead time on that compressor was four days. We found a remanufactured unit, paid $650 for overnight freight, and had the system running by midnight. The client approved the overtime before we ordered the part because the quote line item said 'expedited compressor replacement.' That's the difference between transparency and a surprise.
Here's what I mean by the control sequence. A facility manager once asked if he could use an ecobee thermostat on this exact unit. It's a fair question—ecobee is a popular brand and the app is genuinely nice. But an ecobee thermostat is built for residential systems. On a commercial water source heat pump connected to a building automation system, you usually need something that talks BACnet, not just Wi-Fi. In certain cases I can integrate an ecobee thermostat, but I'll quote the additional relay module and labor. That's not an upsell. It's the difference between an on/off switch and a control system.
Boiler Installation Is Not a Price Tag
The same logic applies when someone asks about boiler installation. I don't run a boiler company, but I've coordinated enough boiler projects to have an opinion. A boiler installation quote is only useful if it covers the whole plant, not just the boiler.
Some buildings still have old hydronic systems. Replacing a cast-iron boiler with a new condensing boiler can be a smart move—if the venting, gas piping, condensate drain, and water treatment are included. I've seen 'boiler installation' quotes that didn't include a chimney liner. The liner alone added $4,800. Another quote didn't include a backflow preventer. That was another $900. Those aren't exotic extras. They're code requirements.
Now compare that with a quote for AAON HVAC units. The AAON choice might be higher upfront. But if the boiler quote is missing three line items, the comparison is garbage. You're not comparing apples to oranges. You're comparing a grocery bag to a peeled orange.
The Side Quest: Where to Buy a Burner Phone
Yes, this connects. Last year, a frantic facility manager called me and asked where to buy a burner phone. His regular phone had died in the middle of a shutdown, he had no contacts, and he was trying to reach three contractors. I told him any big-box electronics store sells prepaid phones. But the real fix wasn't the phone. It was a backup plan.
That's how I see a line-item quote. It's a backup plan. The quote is not a legal dodge. It's a promise that no one is going to get a surprise call after the check is signed. If you're wondering where to buy a burner phone because you're juggling contractors and can't keep the scopes straight, a burner phone is a band-aid. Ask for a written scope instead.
What If My Competitor's Quote Is Lower?
Let's address the obvious objection. A cheaper quote is not automatically a lying quote. Sometimes a competitor has lower overhead. Sometimes they're hungry. Sometimes they're faster. I'm not going to tell you that every low quote is a trap. I'm going to tell you to ask for the same level of detail.
Per FTC guidelines (ftc.gov), claims in advertising must be truthful, not misleading, and substantiated. I treat a quote the same way. Every line item is a claim. 'Crane included' means crane included. 'Startup included' means a technician actually runs the unit. If someone gives you a one-line quote for an HVAC project, you haven't been given a quote. You've been given a poem.
And to be clear: I won't tell you that an AAON HVAC unit never needs maintenance. It does. I won't promise a 100 percent uptime guarantee either. What I will promise is that the number I quote is the number you pay, unless you change the scope. That's the only guarantee that matters when the compressor dies on a Friday afternoon.
The Bottom Line
Here's my position: If you quote the real project at the start, you might lose a few bids where the only issue was the headline number. You'll keep the clients who understand that the installed cost is the real cost. You'll also sleep better when someone calls on a Sunday because the cooling tower made a funny noise. I've paid $800 in expedited freight to keep a $12,000 project on schedule. I've also had clients approve a $650 rush fee without blinking because they already knew it was coming. The difference is the quote.
Maybe this makes me the contractor who quotes higher. That's fine. I'd rather explain once why my quote is complete than apologize later for why it wasn't.
Before you ask for 'the best price,' ask for what's included. Before you sign a quote, ask what's not included. Take it from someone who has stood in a mechanical room at 6 PM with a dead heat pump, a confused client, and a phone number that no one answers: the full price is the only price.
