The maintenance agreement is not a service you sell. It is the reason your February looks like your July.
Structure, pricing, the attrition math almost nobody runs, and a model that will tell you the one thing you actually need to know: the size your plan base tops out at if nothing changes.
Every HVAC business has the same shape of problem. Two months of the year you cannot answer the phone fast enough, two months you are wondering whether to keep everybody on payroll, and the eight in between are somewhere in the middle. You cannot fix that with marketing, because marketing follows the same weather your phone does.
Maintenance agreements are the only lever that works against the season instead of with it. They put billable, schedulable work into the shoulder months, they give you a list of houses whose equipment you already know the age and condition of, and they turn the replacement conversation from a cold quote into a continuation of something you have been telling that customer for three years.
They also fail quietly, in a specific and predictable way, when the renewal rate is worse than the sales rate. That is the part this page is actually about.
Why they matter
Four things an agreement buys you that a service call never will.
Revenue is the obvious one and the least interesting one.
01
Schedulable work in the dead months
A cooling pre-season visit in spring and a heating pre-season visit in fall are jobs you control the date of. That is what lets you keep good technicians on payroll through the shoulder season instead of losing them to the shop that had work in March.
02
A known-equipment list
You know the age, refrigerant, condition and history of every system on the plan. When a heat wave hits, you are not diagnosing strangers — and when a system is coming to the end, you saw it coming and so did the customer.
03
Replacement pull-through
Replacements sold to plan customers close faster, at less price pressure, with almost no competitive bidding, because you have been telling them the truth about that equipment for years. This is usually worth more than the plan revenue itself.
04
Something to sell when you leave
A book of transferable agreements with a documented renewal rate is the closest thing a service business has to an asset. A pile of past invoices is not. If you ever want out, this is the difference.
The structure
What actually goes in the agreement.
The clauses below are the ones that decide whether the plan is profitable or whether you have accidentally sold unlimited labor for a flat fee. Get these on paper before you sell the first one.
Included every visit
- Two visits a year — one before cooling season, one before heating season. State the months, not “twice a year.”
- A written condition report after each visit, with readings. This is what makes the eventual replacement conversation easy.
- Filter supplied or changed — specify size and whether you supply it or they do.
- Standard cleaning — condenser coil, condensate drain and pan, blower compartment.
- Safety and operational checks with recorded values, not checkboxes.
Benefits, priced deliberately
- Priority dispatch — define it. “Ahead of non-plan customers” is honest; “same day, always” is a promise you will break in July.
- Diagnostic fee waived or reduced on service calls.
- Repair discount — a stated percentage on parts, labor or both. Pick one and say which.
- No overtime premium for after-hours — if you offer it, price the plan for it.
- Transferable to a new homeowner. Costs you nothing and closes plans at real-estate transactions.
Explicitly excluded
- Refrigerant — charge is not a consumable and topping off a leaking system is not maintenance. Say so in writing.
- Repairs and parts beyond the listed cleaning and adjustment.
- Duct cleaning, duct repair, and any airflow correction — these are projects, not visits.
- Equipment already failed at signup. Inspect before you enroll, or you have just bought their problem.
- Systems past a stated age, or enroll them at a different tier. This one saves plans.
Terms that prevent arguments
- Term and auto-renewal — annual, auto-renewing, with a stated cancellation notice period.
- Payment — monthly recurring or annual prepay. Monthly renews better; prepay funds the year.
- Unused visits do not roll over. Without this you accumulate a liability of visits owed.
- Per-system pricing — a second system is a second set of visits. Price the add-on lower, but price it.
- What happens if they will not schedule. The plan you cannot deliver is the plan that churns.
The model
Run your plan base. Find your ceiling.
Eight inputs. It will show you your margin per agreement, your three-year base after attrition, the steady-state size your current sales pace and renewal rate converge on, and what the replacement pull-through is actually worth.
Maintenance agreement model
Runs entirely in your browser — nothing is sent anywhere.
No result yet. Fill in the eight fields and run the model. You will get margin per agreement, a three-year base projection, your steady-state ceiling, and the replacement pull-through value.
The math, in the open: next year’s base is base × renewal + new, applied year over year. The ceiling is new ÷ (1 − renewal) — the point where the number you lose to churn equals the number you sell. Agreement gross profit is price − (visits × cost per visit). Pull-through is base × replacement rate × gross profit per replacement. Everything is nominal, pre-overhead, and ignores price increases — it is a shape-of-the-business tool, not an accounting projection.
Why plans churn, in order of how often it is actually the cause
- The visit never got scheduled. This is the number one killer and it is entirely on you. A customer who paid for two visits and got one is not renewing, and they are right not to. Whoever owns the schedule needs a list, a season, and a deadline.
- A different tech every time. The value of the plan to the homeowner is largely “somebody who knows my house.” Rotating technicians erases that and turns the plan back into a commodity.
- The visit felt like nothing happened. Twenty minutes, no report, no conversation. If they cannot tell you did anything, they will not pay for it again. The written condition report is not paperwork — it is the deliverable.
- Priority dispatch that was not. If you sold priority and then made them wait two days in a heat wave, you sold the one thing they will remember and then did not deliver it. Either staff for it or describe it more honestly.
- Price. Genuinely last. Plans almost never churn on price when the first four are handled.
When to sell one
Two moments close far better than everything else combined. The first is at commissioning of a new installation — the customer just spent significant money and wants it protected, and every manufacturer’s warranty language about documented maintenance is working in your favor. The second is at the end of a service call where you did the honest thing and declined to sell a replacement. You have just built more trust than any campaign will.
The moment that does not work is immediately after handing someone a large, unwelcome quote. They are doing arithmetic, not buying a relationship.
Delivery
What the visit should actually cover.
Record values, not checkmarks. A number written down this spring is what proves the story next spring — and it is what makes the replacement conversation obvious rather than pushy.
Cooling / heat pump pre-season
- Capacitor — measured microfarads against the rated value, written down. Trending is the whole point.
- Contactor — pitting, coil condition, and voltage drop across the contacts.
- Amp draws on compressor and fan motors, compared against RLA and FLA on the data plate.
- Condenser coil cleaned; fins and fan blade inspected.
- Charge verified by the manufacturer’s stated method for that metering device — subcooling for TXV/EEV systems, superheat for fixed orifice. Verified, not adjusted by feel.
- Airflow indicators — total external static pressure against the equipment rating, and supply/return temperature split.
- Condensate — pan, primary and secondary drains, float switch tested, trap cleared.
- Blower wheel inspected; a loaded wheel quietly destroys airflow and nobody ever looks.
Heating pre-season (gas)
- Combustion analysis with recorded readings, not a visual flame check.
- Heat exchanger inspected per the manufacturer’s procedure, with the method documented.
- Venting — slope, support, termination clearances, condition, and no signs of spillage.
- Combustion air confirmed adequate for the appliance and the space it sits in.
- Gas pressure — manifold and inlet, against the rating plate.
- Safety controls — limits, rollout switch, pressure switch, flame sensor cleaned and microamps recorded.
- Ignition system and burner condition.
- CO alarms in the home noted — present, and not past their replace-by date.
Two things to be careful about here
Never market a plan in a way that implies free refrigerant. Adding charge to a system without finding the leak is poor practice, it hides a failure the customer is paying you to catch, and where a leak exists there are EPA Section 608 obligations in play. Keep refrigerant explicitly excluded in the agreement and say why — customers accept it easily when you explain that a system losing charge has a leak, and the leak is the actual problem.
Combustion, venting, and combustion-air requirements are code items, and codes are local. The checklist above is the shape of a competent visit, not a compliance standard. What your jurisdiction has adopted — which edition of the mechanical and fuel-gas code, with what amendments — is something you need to verify against your own adopted code. Manufacturer instructions govern where they are more restrictive.
Put it on paper
The paperwork side of an agreement.
A maintenance agreement is a contract with recurring obligations on both sides. The free templates below cover the terms, the billing and the scope language.
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Quick answers
Maintenance agreement FAQ.
What renewal rate should I be aiming for?
Rather than chase a benchmark from someone else’s market, measure your own honestly and then work the causes. The reason the number matters is arithmetic, not comparison: renewal rate sets the ceiling your plan base converges on. Going from 70% to 80% renewal does not improve your base by ten percent — at a fixed sales pace it raises the ceiling by half. That is why fixing the scheduling and the condition report is worth more than selling harder.
Monthly billing or annual prepay?
Both work and they do different things. Annual prepay puts cash in the door and is simpler to administer. Monthly recurring almost always renews better, because cancelling requires an action and staying does not, and because a smaller monthly number survives a tight month in a household budget. If you are optimising for base size and stability, monthly wins; if you need working capital, prepay does. Plenty of shops offer both and price the prepay slightly lower.
Should I include refrigerant in the plan?
No. Refrigerant is not a consumable that gets used up in normal operation — a system that needs charge has a leak, and the leak is the thing the customer is paying you to find. Including refrigerant creates an incentive to top off rather than diagnose, hides a real failure, and where there is a leak there are EPA Section 608 obligations to consider. Exclude it in writing and explain the reasoning; customers accept it readily once they understand a low charge means something is wrong.
How many visits should a plan include?
Two is the standard for a home with both heating and cooling, timed before each season so you are finding problems in March and September rather than in the middle of a heat wave. One visit a year is workable for a cooling-only climate. More than two is usually a commercial arrangement or a premium tier — and every additional visit is a real cost, so run it through the model before you offer it.
Is a maintenance plan required to keep a manufacturer warranty valid?
Be careful how you phrase this. Manufacturer warranty terms commonly require documented, regular maintenance and proper installation, and a claim can be denied where neglect caused the failure — but the specific requirements vary by manufacturer, by product line, and by the registration terms. Do not tell a customer a plan is required unless the actual warranty document for that equipment says so. What you can always say truthfully is that a plan gives them documentation of maintenance, which is what a warranty claim will ask for.
What do I do about plan customers who will not schedule their visit?
Treat it as an operations problem, because it is the leading cause of churn. Put a defined outreach sequence behind it, make the scheduling window explicit in the agreement, and state that unused visits do not roll over — then actually enforce it, which requires having tried to reach them in a way you can document. The customer you could not get on the calendar is the one who will tell you at renewal that they never got anything for their money.
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