Solar installers pick Vapi because it is a voice agent platform with builder UI, and then most of them find the platform was the easy part. The hard part is the solar edge cases, the integrations, and who fixes a bad call at 9pm. That is the comparison this page makes.
Vapi is a voice agent platform with builder UI, and that is a real answer to a real problem — it is why solar installers shortlist it. What it does not solve is the part that decides whether the agent earns its keep: the solar edge cases, the integrations into the system your work already lives in, and who is accountable when a call goes wrong on a Friday night.
You spend $200-$400 per lead on paid social. The best ones are time-sensitive — they just got their summer electric bill and they're shopping right now. By Monday they've already scheduled a site survey with the competitor who called them in 90 seconds. Your inside sales team is qualifying through a trickle of cold-feeling leads because the warm ones aged out over the weekend.
Vapi charges platform fees; we charge per-minute + per-booking. Comparable for high-volume; cheaper for startups under 4K min/mo. Vapi positions itself as voice AI platform with hosted infra and a builder UI. and is best for mid-stage startups building their own voice product on top of a platform.
Pick Vapi if you're building a voice product. Pick us if you want voice for your existing business. For a solar operation specifically, the deciding question is whether you have an engineer who can own the build for six weeks and then keep owning it. If you do, Vapi is cheaper. If you do not, a platform is a project you will not finish.
A residential solar installer running $15-30K/mo in Meta spend typically converts 18-25% of leads to a booked survey (most aged out in the first 5 minutes). A speed-to-lead agent contacting every lead in <60 seconds lifts lead-to-set to 40-55% and cuts cost-per-set in half. Same paid spend now feeds twice the booked surveys, at ~$1,200 per closed install commission, that's 6-figure incremental monthly revenue on a $1,997/mo plan.
Yes, though it is a different shape. Vapi is something you configure; this is something we build, evaluate and run. Solar installers come to us when they want a working agent in 21 business days with the solar stack already wired, instead of a console they have to learn first.
Vapi bills for the platform and leaves the build to you; the honest comparison has to price your own engineering time alongside it. We bundle discovery, tuning, integrations and the runtime into a published monthly. For most solar installers the two land close once the build effort is counted, and the difference is who is on the hook when it breaks.