Methodology
How We Calculate Your ROI
Every number in the Sellify ROI calculator is grounded in pest control industry research. We've deliberately chosen conservative assumptions - we'd rather underestimate and overdeliver than promise numbers we can't stand behind.
Our Philosophy on Estimates
An ROI calculator that doesn't tell you what you want to hear
Most ROI calculators inflate assumptions to make the numbers look impressive. This isn't one of them. We use conservative assumptions throughout - the floor of industry ranges, not the ceiling. Win-back rates and upsell attach rates are set deliberately below observed industry ceilings. Where we use industry benchmarks, we cite the source.
Output 1
Revenue retained through appointment communication
Smart Reminders - retention revenue
The industry average annual cancellation rate for residential pest control is 13-25%. (City Ranked) The leading driver of preventable cancellations is lack of communication between visits. Pest control companies average only 4-5 touchpoints per year - most of which are a basic one-way confirmation text with no follow-through.
Research shows that structured multi-touch appointment communication - confirmations, pre-visit note collection, reschedule handling - reduces cancellations by up to 30%. (Cube Creative)
We apply a 2 percentage point reduction in annual cancellation rate - a conservative floor. For a company with 17,000 active customers at $575/year value, that's 340 customers retained worth ~$196K in recurring annual revenue.
A 2% improvement in retention has the same profit impact as cutting operating expenses by 10%. (Kemp Anderson Consulting via City Ranked)
Output 2
The revenue already inside your active customer base
Upsell revenue generated
The pest control industry targets a 15-20% upsell attach rate as a best-practice benchmark. (Sheets.Market) Most operators fall well short because upselling requires proactive outreach that CSRs don't have time for.
We model at 1.25% per year - a deliberately conservative rate that reflects the reality of automated SMS outreach converting a small but consistent slice of the customer base each year.
New customers acquired during the year are included in the upsell pool, since they may also be candidates for add-on services within their first season.
Existing customers buy at a 60-70% success rate vs. just 5-20% for new prospects - making your active base the highest-leverage sales channel you have. (Help Scout via Cube Creative)
Output 3
Revenue hiding in your cancelled customer list
Win-back revenue recovered
Most pest control operators have 2-4× more cancelled customers in their history than they currently have active accounts. At 20% annual cancellations, a company accumulates roughly 3× its active base in past customers over three years - most of whom have never been re-contacted.
The model segments the cancelled pool into three buckets based on recency, and applies decreasing win-back rates to each: 0.4% for customers who cancelled most recently (highest intent), 0.3% for the prior cohort, and 0.2% for the older historical pool. The historical pool decays by 70% each year as it is either converted or aged out.
Recent cancelled and older cancelled cohorts are estimated from the active base and cancellation rate. The remainder of the user-entered past customer total forms the historical pool.
Output 4
The leads your phone is already losing
Inbound revenue captured
Home service businesses answer only 66% of inbound calls on average - while owners believe they answer 97%. (Service Direct 2019 Home Service Call Performance Report) We use 34% missed as our baseline.
Of all inbound calls, approximately 47% are leads - new customer inquiries and service requests. (FirstDial.ai) Of recovered leads, we apply a ~9.4% net conversion rate (34% missed × 47% leads × 30% close rate) to model the realistic yield from previously unanswered calls.
Combined, this gives a net 1.5% of monthly call volume converting into new customers per month, annualized over 12 months.
According to Pest Control Technology (PCT), 85% of missed callers will not call back. (PCT via Cube Creative) The first company to respond wins 78% of the time. (Digital Hellos)
How it compounds
Why the 5-year view matters
The calculator projects year-over-year, not as a flat multiplier. Each year's active customer count is recomputed from the prior year - accounting for ongoing cancellations, win-backs re-entering the base, inbound conversions, and new customer acquisition.
Effective cancellation rate is reduced by 2 percentage points from the stated rate to reflect the impact of Smart Reminders on retention. This feeds forward into subsequent years: a slightly larger customer base each year compounded over 5 years meaningfully changes the total.
The win-back cohorts update annually: each year, the current year's cancelled customers become the “older” cohort, the previous older cohort rolls into the historical pool, and the historical pool decays as it gets worked through.
The best way to get accurate numbers for your operation: Try Sellify Live → - we'll run the model with your actual data.
Source Index
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