Tony Delgado has a six-week install backlog and two service technicians going home early on Thursday. In this illustrative example, the Mesa owner has run a blended HVAC company for eighteen years.
"Marketing is one lever. More budget, more leads, more jobs. The mix sorts itself out."
With twelve technicians and three install crews working from one building, that feels sensible.
The mix does not sort itself out.
That April, his sales manager says four replacement prospects chose a competitor who could start Monday. About $38,000 of potential work disappears while the service board still has room.
Tony pulls the marketing report. He wants to know how much of his roughly $11,000 monthly spend supported each side.
There is one line item. There has always been one line item.
How can a full company have an empty service board?
Your service and install departments share a name. They do not share a scheduling rhythm.
Service work often depends on today's call becoming today's or tomorrow's appointment. The board fills, empties, and needs another round of demand. Planned replacement work can move through a consultation, proposal, financing discussion, and installation date over several weeks.
That difference makes a combined lead total hard to use. More replacement inquiries cannot automatically fill a service technician's open afternoon. More urgent repair calls cannot clear a six-week install backlog.
Start with four separate views: revenue, completed job count, labor hours, and future availability. Tony's approximate 40% service and 60% install revenue split describes dollars. It does not mean 60% of his appointments, technician hours, or next week's open capacity are installations.
A $10,000 replacement and ten $1,000 service jobs create the same revenue in a simple example. They create different routing, staffing, acquisition, and customer-service requirements. Revenue alone does not reveal which schedule needs work.
The wider sequence in how HVAC marketing actually works begins with those operating facts. Skipping them is one reason marketing fails before it starts.
Tony has been calling a six-week backlog a good problem. The four lost prospects make him reconsider. For those homeowners, his availability was part of the offer. Meanwhile, Thursday's empty service slots were real capacity that the same marketing report never mentioned.
Which hours are actually available to sell?
Build two capacity calculations before you build two campaigns.
For service, start with the technicians assigned to service and subtract travel, dispatch, training, paperwork, callbacks, and other non-billable commitments. Convert the remaining usable hours into appointments using your actual job-duration mix. Reserve room for the disruptions your operation normally sees.
For install, count crew-days and the workers needed for each crew. Deduct sold projects, equipment or permit constraints, leave, and known follow-up work. A two-person crew working one day consumes one crew-day and two technician-days. Keep those units separate.
If the same technician appears on both boards, allocate that person's hours once. A service tech borrowed for an install removes capacity from the service side. An install opening does not automatically free someone qualified to run every service call.
The Bureau of Labor Statistics describes specialization within HVAC work and lengthy on-the-job training. Treat skills and readiness as part of capacity, rather than assuming any available person can cover any open slot.
Use your team's true weekly capacity for the full subtraction. The result you need is available work by type and date, after commitments. Payroll hours are the starting point.
Tony has another commitment hidden inside the total: about 1,100 active maintenance agreements. He remembers selling 400 in one fall push and celebrating the result. The following July, tune-ups occupied time he also wanted for repairs and replacements. Those agreements need dates and hours on the plan before new demand gets added.
How many of each lead would fill the gaps?
Here is an illustrative calculation with assumed capacity and conversion rates. Replace every input with your own history. It is a planning exercise, not a forecast for Tony's shop.
For the service week you are trying to fill, suppose your usable target is 80 appointments after non-billable time and reserve. Existing customers, agreements, and current bookings are expected to fill 56. The remaining gap is 24 appointments.
If 75% of qualified service inquiries book, you need 24 divided by 0.75: 32 additional service inquiries for that window.
For a future install week, suppose three crews have 12 usable crew-days after reserve and other constraints. Eight are already committed. Four remain. If each new project requires two crew-days, you can sell two more installs into that week.
Assume 50% of qualified install inquiries become completed consultations, and 20% of those consultations become sold projects. The combined conversion rate is 0.50 times 0.20, or 10%. Two additional installs require 20 qualified install inquiries.
Those 20 inquiries need to arrive early enough for the consultation, proposal, decision, and scheduling process. They are not a way to fill today's empty service board. Existing open proposals also belong in the forecast, so you do not buy new inquiries for work your pipeline is already likely to provide.
How many leads your HVAC company actually needs expands the reverse calculation. The useful answer has two numbers, two job types, and two time windows.
Tony looks again at the one line item. It cannot tell him whether next week's service gap needs 32 inquiries or whether a future install gap needs 20. Both would have been called "more leads." He now has two different instructions he can give the agency.
What is each homeowner trying to decide?
An urgent service customer needs to know whether you serve the address, can handle the problem, and can offer an appropriate appointment. Make the phone easy to reach. State availability honestly. Give the person answering a process for confirming the problem and offering the next step.
Do not advertise same-day service merely because competitors do. A promise dispatch cannot keep creates a scheduling problem and a trust problem at once.
A planned replacement customer may need to compare equipment, installation scope, warranties, financing terms, and the contractor's process. ENERGY STAR's heating and cooling guidance says nearly half of home energy use goes to heating and cooling and emphasizes proper installation. Homeowners have practical reasons to ask questions beyond the equipment price.
Give that visitor a replacement page and a clear consultation request. Explain what the visit covers, show relevant work and customer proof, and assign follow-up on open proposals. Present financing accurately and without assuming every buyer qualifies.
Urgency is not a perfect dividing line. A failed system can make a replacement urgent, while a maintenance visit can be planned months ahead. Ask what the homeowner needs and when. Route the inquiry accordingly instead of letting the campaign name decide the entire customer experience.
Tony came up selling replacements. A bigger ticket naturally gets his attention. He can see how that preference reached the website: one generic page, then a conversation shaped around replacing the system. A homeowner who needs a repair appointment should not have to work through that path to get one.
Where should the next dollar go?
Your revenue mix is a diagnostic. It is not an automatic budget formula. A 40/60 service-install revenue split does not require a permanent 40/60 marketing split.
Allocate the next dollar using the usable capacity gap, the contribution each job produces, the cost to acquire it, and the time it takes to convert. A large replacement ticket does not justify unlimited acquisition cost. Equipment, labor, commission, financing costs, and expected follow-up still have to be paid.
Suppose, for another simple example, a completed service job contributes $300 before marketing and fixed overhead. At a $150 acquisition cost, $150 remains toward overhead and profit. Suppose an install contributes $2,500 on the same basis. At $1,500 acquisition cost, $1,000 remains. Those assumed figures need your actual job costing before they support a decision.
Then check the constraint: can you serve the work at the promised time? If install lead time is already costing sales, expanding install spend may worsen that problem. Protect useful replacement research and follow-up while directing incremental demand toward service openings you can deliver.
When install capacity will open in several weeks, start building that pipeline early. Keep service response and install consultation budgets visible separately, with their own pages, goals, and outcomes. Use the capacity planning checklist before raising either one.
Tony does not need to declare one department more valuable forever. He needs to stop making the same decision for both this week. His six-week backlog and empty Thursday call for different actions, even though both appear under the same company name.
What belongs in the two-column review?
You can start with one shared sheet and two columns. The distinction matters more than the software. For service and install separately, record:
- Usable capacity and the dates you need to fill.
- Existing bookings, agreement work, and likely pipeline commitments.
- Qualified inquiries by source and the spend assigned to them.
- Response time, appointment rate, and lost-opportunity reasons.
- Completed jobs, collected revenue, job contribution, and acquisition cost.
Add completed consultations, open proposals, proposal close rate, and install lead time to the replacement side. Keep repeat customers and maintenance obligations visible on the service side. Where a service call produces an install, retain the original source and record the handoff so one opportunity does not become two new leads.
Compare the same group of inquiries over time. This week's replacements may have come from last month's consultations. Judging this month's install campaign only by this month's completed jobs can mix different groups and suggest the wrong change.
Bring marketing, intake, sales, and dispatch into the review. "Lost on availability" calls for a different response than "never contacted" or "proposal not followed up." Assign the specific repair, then check the result. Raising spend cannot serve as the answer to every loss reason.
What changes when Tony asks for the split again?
In Tony's example, the next report still shows roughly $11,000 in monthly spend. Underneath it, there are two conversations.
His dispatcher can say which service appointments are genuinely open. His sales manager can show which replacement prospects are waiting, what they need next, and when an installation could happen. His agency can explain which demand it is buying for each gap.
The maintenance agreements appear as scheduled obligations. The six-week backlog appears as a selling constraint. Neither disappears inside a total that simply says the company is busy.
Two full calendars are useful only when the right work fits the people and dates available to deliver it.
Tony still wants the phone to ring. He now asks which phone call, for which side of the business, and for which week. One line item has become two decisions he can actually make.