If you run a $1M+ service business, you've probably had three vendors pitch you AI voice agents in the last 90 days. Most operators end up confused, because the comparisons online are either ad copy or fluff. Here's the real breakdown — built from 60+ deployments and direct experience selling against both Avoca and Goodcall.
Avoca is built for HVAC operators in the Service Titan ecosystem and works well for inbound CSR-style answering. Goodcall is a lower-priced, more generic solution good for sub-$1M operators. Custom builds (what SimpliScale does) only make sense once you're past $1M in revenue and have workflow specifics that off-the-shelf tools can't model. The right answer depends on your size and your stack.
Avoca is a strong product for HVAC and plumbing operators who run ServiceTitan and need a CSR-replacement layer. Pricing typically lands in the $1,500-$3,000/month range for the entry tier. The gaps show up when you need custom routing logic, multi-step qualification, or integrations beyond ServiceTitan. If your operation runs three CRMs and a custom estimating workflow, Avoca cannot model it.
Goodcall is positioned as a value play — typically under $1,000/month. It handles basic answering, simple FAQ, and lead capture. It's a fine starting point for sub-$500K operators. But it is not a serious replacement for a full CSR team, and it cannot run complex qualification logic (insurance scope, hail damage details, service-area routing).
Custom AI voice agents (the kind SimpliScale ships) make sense when: (1) you're doing $1M+ in revenue, (2) you've outgrown the rigidity of off-the-shelf tools, (3) you have specific workflow logic that a packaged product can't model, and (4) you want to own the IP and avoid per-call usage pricing that scales against you. Custom builds run $1,500-$4,000/month and integrate with anything — JobNimbus, AccuLynx, ServiceTitan, Housecall Pro, FieldEdge, GoHighLevel.
Forget feature checklists. The real question is: how complex is your sales process, and how much does each lost call cost you? If you're under $500K, start with Goodcall. If you're a pure-play HVAC shop on ServiceTitan doing $1M-$3M, Avoca is a strong fit. If you're past $1M and your workflow is anything weirder than a textbook trade — custom build.
Book a free AI audit. We'll show you exactly how much revenue you're leaving on the table — and what a custom build would look like for your business.
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