Answering Service ROI: How to Calculate What Missed Calls Cost You

Every contractor knows missed calls are bad for business. But when someone asks you "how much are missed calls actually costing you?" most contractors shrug. The honest answer is usually "I have no idea." And that's the problem — you can't fix what you don't measure. Let's change that. Here's exactly how to calculate the ROI of an answering service so you can make a decision based on numbers, not guesses. ## The Core Formula The ROI calculation for an answering service boils down to one question: **how much revenue do missed calls cost you vs. how much does the service cost?** Here's the formula: **Monthly Cost of Missed Calls = Missed Calls Per Month × Lead Conversion Rate × Average Job Value** **Answering Service ROI = (Monthly Cost of Missed Calls - Monthly Service Cost) / Monthly Service Cost × 100** Let's break down each variable. ## Step 1: Find Your Missed Calls Per Month Check your phone records. Most carriers let you see incoming calls, and your phone system may track answered vs. missed. If you don't have exact data, here are industry benchmarks: - The average small contractor misses **23-40% of inbound calls** - During busy season, that number climbs to **40-55%** - After-hours calls (5 PM - 8 AM) make up roughly **35-45% of total inbound calls** for contractors **Example:** You get 120 inbound calls per month. You answer 75 of them. That's **45 missed calls per month** (37.5% miss rate). ## Step 2: Determine Your Lead Conversion Rate Not every call is a qualified lead, and not every lead becomes a job. Typical contractor conversion rates: - **Inbound call to qualified lead:** 60-75% (the rest are spam, wrong numbers, existing customer questions) - **Qualified lead to booked job:** 40-60% (depends on your sales process, pricing, and availability) - **Combined (call to booked job):** roughly 25-45% For our calculation, we'll use the combined rate. A healthy contractor converts about **35% of inbound calls** to paying jobs. **Example:** Of your 45 missed calls, about **16 would have become paying jobs** (45 × 0.35 = 15.75). ## Step 3: Calculate Your Average Job Value This varies wildly by trade and service type: | Trade | Average Service Call | Average Project | |-------|---------------------|-----------------| | Plumbing | $250-$500 | $2,500-$8,000 | | HVAC | $300-$600 | $4,200-$12,000 | | Electrical | $200-$450 | $1,500-$6,000 | | Roofing | $400-$800 (repair) | $8,000-$15,000 | | General Contractor | N/A | $5,000-$50,000+ | Most contractors have a mix of service calls and larger projects. To get your blended average, look at your last 3 months of invoices and divide total revenue by total jobs. **Example:** You're a plumber. Your blended average job value is **$420**. ## Step 4: Calculate Your Monthly Cost of Missed Calls Now plug in the numbers: **45 missed calls × 35% conversion rate × $420 average job = $6,615/month in lost revenue.** Read that again. **$6,615 per month** walking out the door because nobody answered the phone. Over a year, that's **$79,380 in lost revenue.** For a small plumbing company doing $400K-$600K annually, that's a 15-20% revenue increase sitting on the table. ## Step 5: Calculate the ROI of an Answering Service Now let's see what happens when you add a service that answers those missed calls. An answering service won't capture 100% of those lost leads. Some callers will still not convert even if someone answers. But the data shows that **answering a call vs. sending it to voicemail increases lead capture by 60-80%.** Let's be conservative and say the answering service captures **65% of previously missed leads**: - **Recovered revenue:** $6,615 × 0.65 = **$4,300/month** - **Service cost (OnCrew at flat rate):** $49/month - **Net gain:** $4,300 - $49 = **$4,251/month** - **ROI:** ($4,251 / $49) × 100 = **8,675% ROI** Even if we're wildly conservative — say the service only recovers 30% of missed leads — the numbers still work: - **Recovered revenue:** $6,615 × 0.30 = **$1,985/month** - **Net gain:** $1,985 - $49 = **$1,936/month** - **ROI:** 3,951% There aren't many investments in your business that return 40-80x. ## Your Custom Calculation Here's a quick worksheet. Fill in your numbers: 1. **Monthly inbound calls:** ___ 2. **Calls you miss (or send to voicemail):** ___ 3. **Your call-to-job conversion rate:** ___ % (use 35% if unsure) 4. **Your average job value:** $___ 5. **Monthly lost revenue:** (#2 × #3 × #4) = $___ 6. **Answering service cost:** $49/month 7. **Estimated recovery rate:** 50% (conservative) 8. **Monthly recovered revenue:** (#5 × 0.50) = $___ 9. **Monthly ROI:** (#8 - #6) / #6 × 100 = ___% ## What the Numbers Don't Capture This formula only counts direct revenue. It doesn't account for: - **Referrals:** Every captured customer refers 2-3 others over time - **Lifetime value:** A customer who calls for a $300 repair may spend $5,000+ with you over the next 5 years - **Google reviews:** Answered calls lead to completed jobs lead to review requests. Missed calls lead to "they never answer their phone" one-star reviews - **Reduced marketing waste:** If you're paying for Google Ads or SEO to generate calls, every missed call is ad spend down the drain. A $50 click that goes to voicemail is $50 wasted ## The Bottom Line Most contractors underestimate the cost of missed calls by 5-10x. When you actually run the numbers, the ROI of a phone answering solution isn't just positive — it's one of the best investments you can make in your business. The math doesn't lie. And at $49/month with no per-call fees, the barrier to entry is basically zero. **See the ROI for yourself.** [OnCrew](https://oncrew.ai) answers every call for $49/month — try it free for 14 days and watch the leads roll in. Or call **(818) 578-4783** to experience the AI firsthand.