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    The Real Cost of Missed Calls for HVAC, Plumbing, and Electrical Contractors

    Every unanswered phone call at your contracting business represents far more than a minor inconvenience. According to Invoca's home services research, the average missed inbound call costs home service businesses approximately $1,200 in lost revenue.

    December 2025
    11 min read
    Chris DiYanni
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    For HVAC contractors fielding system replacement inquiries, that number can climb to $8,000 to $15,000 per missed call.

    But the real story is more nuanced. Emergency calls, after-hours calls, and seasonal peaks all carry dramatically different revenue implications. This guide breaks down exactly what missed calls are costing your business across every scenario, with real industry data and case studies from contractors who fixed the problem.

    What a Single Missed Call Actually Costs

    The revenue at stake depends heavily on the type of call you miss.

    By trade and job type:

    TradeTypical Service CallReplacement/Project
    HVAC$300 to $600$3,800 to $15,000
    Plumbing$400 to $600+$1,500 to $5,000
    Electrical$200 to $500$1,000 to $4,000

    A furnace replacement call that goes to voicemail? That represents roughly $4,500 in revenue and $900 in profit at typical margins. When a homeowner shopping for a new AC system calls three contractors and you miss the call, they book with whoever answers first.

    Emergency Calls vs Scheduled Service: The Revenue Gap

    Not all missed calls are created equal. Emergency calls carry a massive revenue premium over routine service.

    Call TypeAverage TicketMiss RateRevenue Impact
    Emergency service$500 to $80020 to 30%1.5 to 2x higher than scheduled
    Scheduled service~$27515 to 20%Baseline
    System replacement$3,800 to $15,000VariesHighest per-call value

    Emergency calls generate 1.5 to 2x higher revenue than scheduled service calls. The homeowner with a burst pipe at 10 PM or a dead furnace in January is not price shopping. They need help now and will pay premium rates to get it.

    Yet contractors miss 20 to 30% of these high-value emergency calls. That miss rate translates to roughly 33% potential revenue uplift if those calls were answered at higher rates.

    Plumbing data:

    Emergencies comprise 30% of after-hours missed calls but yield $450 average tickets, well above routine service.

    Seasonal Peaks: When Missed Calls Hurt Most

    Seasonal demand spikes create both the biggest opportunity and the biggest risk for missed calls.

    Season/EventCall Volume SpikeMissed Call Cost Impact
    Summer heat waves400 to 500% increase$200,000 to $500,000 per season
    Winter cold snaps400% increase$200,000 to $500,000 per season
    Post-storm (roofing)800% increaseHighest surge
    Shoulder seasons30% decreaseLower emergency volume

    During summer AC breakdowns and winter heating failures, call volumes spike 400 to 500%. Contractors who cannot scale their phone coverage during these peaks face missed call costs of $200,000 to $500,000 per season in lost emergency revenue.

    The math is brutal:

    If your normal missed call rate is 20% and your call volume increases 5x during a heat wave, you are missing 5x as many high-value emergency calls at precisely the moment customers are most willing to pay premium rates.

    After-Hours Calls: The Hidden Revenue Leak

    After-hours is where most contractors hemorrhage money.

    Time PeriodUnanswered RateMonthly Revenue LossAverage Ticket
    Business hours18%LowerStandard rates
    After hours62%$1,500+ per businessPremium rates (2 to 3x)
    Weekends41%Highest per-callPremium rates

    The contrast is stark: 18% of calls go unanswered during business hours, but that number jumps to 62% after hours. Meanwhile, after-hours calls often carry 2 to 3x premium rates for emergency service.

    After-hours missed calls average $1,500+ in monthly revenue loss per business. For a mid-sized California HVAC firm, one analysis showed $27,000 in monthly losses from after-hours emergencies alone, calculated from 15 missed calls at $1,800 average tickets.

    The tragedy:

    These are often the easiest calls to convert. A homeowner calling at 11 PM is not comparison shopping. They have a problem, they found your number, and they are ready to book.

    Weekend Calls: The Worst Miss Rate

    Weekends combine the worst of both worlds: high-value emergency calls and the lowest answer rates.

    Day TypeUnanswered RateCaller Behavior
    Weekdays18%More price shopping
    Weekends41%More emergencies, less patience

    Weekend calls show 41% unanswered rates versus 18% on weekdays. This is more than double the miss rate during a time when many calls are premium-priced emergencies.

    Making matters worse, 85% of unanswered callers never call back. They call your competitor instead. Peak failure times cluster around 4 to 10 PM, blending after-hours and weekend vulnerabilities.

    The Competitor Factor: Where Those Calls Actually Go

    Here is the uncomfortable truth about missed calls: your competitors answer them.

    • 85% of missed callers will not call your business back
    • 27% of all inbound calls to home service businesses go unanswered
    • 75% of callers abandon before reaching a human when factoring in hold times and IVR systems

    When a homeowner has water pouring through their ceiling or their AC dies in August, they are not leaving a voicemail and waiting patiently. They are calling the next contractor on the list within seconds.

    The Hidden Cost: Customer Lifetime Value

    Missing a call does not just cost you one job. It costs you an entire customer relationship.

    MetricValue
    Customer Acquisition Cost (CAC)$296 to $350
    Customer Lifetime Value (CLV)$15,340
    First Visit Revenue~$400
    Average Net Profit Margin8%

    That $300+ you spent on marketing to make the phone ring? Wasted the moment nobody answers. But the real loss is the $15,000 in lifetime value from repeat maintenance, future repairs, and eventual system replacements.

    Case Studies: Contractors Who Fixed the Problem

    Real contractors have quantified the impact of answering more calls:

    Rodriguez Plumbing

    By capturing after-hours calls they previously missed, Rodriguez Plumbing added $4,000 in monthly revenue, translating to $48,000 annually. Within six months, the additional revenue enabled fleet expansion.

    Mid-Size HVAC Firm (Live Receptionists)

    An HVAC contractor implemented live receptionist coverage and saw 40% increase in bookings along with measurable improvements in customer satisfaction within six months.

    Plumbing Business (Virtual Receptionists)

    A plumbing company using virtual receptionists cut response times by 30% and grew revenue by 25% year-over-year.

    Regional HVAC Contractor (24/7 Support)

    A smaller HVAC contractor implemented 24/7 phone support and found they could compete effectively with much larger competitors.

    Solutions: How Top Contractors Capture Every Call

    The contractors growing fastest share a common approach: they treat phone coverage as revenue infrastructure, not overhead.

    AI Receptionist Services

    AI-powered answering services like AutoRev AI, Smith.ai, and Ruby Receptionists ensure every call gets answered live, 24/7. Unlike traditional answering services that just take messages, AI receptionists can book appointments, answer common questions, and integrate directly with your CRM.

    AutoRev specializes specifically in home service contractors

    With AI voice agents trained on HVAC, plumbing, and electrical terminology. The system books jobs directly into ServiceTitan, Housecall Pro, or your existing calendar while qualifying leads and capturing customer information.

    In-House CSR Teams

    Larger contractors often build dedicated call center teams. ServiceTitan's Contact Center Pro helps centralize calls across locations and ensure overflow coverage. A case study with Southern Home Services showed that centralizing calls produced a 13% increase in call booking rates.

    Hybrid Approaches

    Many contractors combine in-house CSRs during business hours with AI answering services like AutoRev for after-hours, weekends, and overflow. This ensures 100% answer rates without the cost of 24/7 staffing.

    Comparing Missed Call Solutions for Contractors

    SolutionBest ForTypical Cost24/7 CoverageAfter-Hours Specialty
    AutoRev AIHVAC, plumbing, electrical$299 to $699/month
    Smith.aiGeneral small business$240 to $700/monthLimited
    Ruby ReceptionistsProfessional services$230 to $665/monthLimited
    In-house CSRHigh-volume contractors$3,500+/month per repRequires shiftsExpensive
    Traditional answeringBasic message taking$100 to $300/monthMessage-only

    Calculating Your Missed Call Revenue Leak

    The formula:

    Monthly Missed Calls × Average Ticket Value × Booking Rate = Monthly Revenue Lost

    Example for a mid-size HVAC contractor:

    • 200 inbound calls per month
    • 27% missed (industry average) = 54 missed calls
    • Average ticket: $800
    • Typical booking rate: 60%

    54 × $800 × 0.60 = $25,920 in monthly revenue at risk

    AutoRev customers report capturing an additional $15,000 to $50,000 in monthly revenue simply by answering calls that previously went to voicemail.

    The Bottom Line

    Every phone call represents revenue, reputation, and long term customer relationships. The contractors growing fastest right now are not necessarily running more ads or hiring more techs. They are simply answering more calls.

    Whether you build an in-house team, use an AI receptionist like AutoRev, or implement a hybrid approach, the goal is the same: answer every call, capture every opportunity.

    Calculate Your Missed Call Revenue

    See exactly how much revenue you're leaving on the table with a free analysis.

    Frequently Asked Questions

    How much revenue do contractors lose per missed call?

    According to Invoca research, home service businesses lose an average of $1,200 per missed call. Emergency calls generate 1.5 to 2x higher revenue than scheduled service, with average tickets of $500 to $800 versus $275 for routine calls. For HVAC replacement calls, a single missed call can represent $8,000 to $15,000.

    What percentage of contractor calls go unanswered?

    Industry data shows 27% of inbound calls go unanswered overall. However, this varies dramatically: 18% during business hours, 41% on weekends, and up to 62% after hours.

    How much do missed calls cost during peak season?

    Seasonal peaks can cost contractors $200,000 to $500,000 per season in missed emergency revenue. Summer heat waves and winter cold snaps increase call volume by 400 to 500%.

    Do customers call back if they reach voicemail?

    No. Research indicates 85% of callers who reach voicemail will not call back. Only 20% of calls reaching voicemail result in a message being left, and only 33% of people listen to business voicemails.

    What is the best solution for missed contractor calls?

    AI receptionist services designed for contractors, like AutoRev AI, provide the most cost-effective solution for 24/7 call coverage. These systems answer every call instantly, book appointments directly into your calendar, and integrate with field service software like ServiceTitan and Housecall Pro.

    How much does an AI answering service cost for contractors?

    Contractor-focused AI receptionist services typically range from $299 to $699 per month. This compares favorably to the $1,500+ monthly revenue loss from after-hours missed calls alone.

    Sources: Invoca Home Services Study, Smith.ai, Signpost, SuzeeAI, ServiceTitan

    Chris DiYanni

    Chris DiYanni

    Founder & CEO, AutoRev.ai

    Chris spent years selling and implementing enterprise AI and automation solutions to Fortune 1000 customers, saving millions and enabling billions in growth. Now he's bringing those same AI playbooks to service businesses.