If you want to understand what missed HVAC opportunities are actually costing your business, without relying on a generic industry statistic, this guide covers a responsible way to estimate it yourself.
Key takeaway: A defensible cost estimate uses your own numbers: your average ticket value, your close rate, and your actual missed-inquiry count, not an industry-wide average pulled from a vendor's marketing page. The result is a hypothetical, illustrative range, not a guarantee, and should be treated as one input into a decision, not a promise.
Why generic ROI stats are misleading
Figures like "the average missed call costs X dollars" circulate widely in vendor marketing, often without a clear, verifiable source. Even when based on some real data, they reflect someone else's ticket values, close rates, and market, not yours. Using them as if they describe your business is not a safe basis for a real decision.
The estimation method
Use three inputs you control: your average ticket value (service or replacement, depending on what you are estimating), your typical close rate for a qualified inquiry, and your actual count of missed or unhandled inquiries over a defined period. Multiply missed inquiries by close rate by average ticket value to get an illustrative range, not a precise figure.
A labeled hypothetical example
Hypothetical example, not a real result: if a company misses roughly 10 qualified inquiries a month, closes about 50 percent of qualified inquiries it does reach, and has an average ticket of a certain value, the rough monthly range comes from multiplying those three numbers together. Change any input and the number changes substantially. This is a way to think about the math, not a claim about what any specific business will experience.
What this number is and is not
It is a way to frame a decision using your own assumptions, made explicit so you can see which inputs drive the result. It is not a guarantee, a forecast, or a claim that fixing lead handling will recover this exact amount. Actual results depend on factors like your capacity, market conditions, and how the fix is implemented.
Using the estimate responsibly
Use it to size the scale of the problem for your own budget conversation, not as a number to promise a vendor will deliver. Any vendor guaranteeing a specific dollar recovery based on a generic formula should be treated with skepticism.
QuickPro's approach
We help clients build this estimate using their own numbers during a Lead-Loss Assessment, clearly labeled as an illustrative range, not a promised outcome, and we do not guarantee specific revenue or booking results because we do not control your lead quality, staffing, or pricing.
Frequently asked questions
Can you guarantee this number if we work with QuickPro?
No. We guarantee that contracted workflows are installed and tested; we do not guarantee revenue outcomes, which depend on factors outside our control.
What if we do not know our close rate?
Start tracking it; even a rough estimate from recent memory is a better starting point than skipping this input entirely.
Related reading
Where to go from here
Our Lead-Loss Assessment Checklist helps you find the actual missed-inquiry count this formula depends on.

