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CASTLECS
Service

Follow Up With Every Lead in Seconds. Reactivate Every Past Client.

The average business follows up with a new lead once or twice before giving up. The average sale requires five to eight touchpoints. That gap — between how many times businesses follow up and how many times it takes to close — is where revenue disappears. Our AI Sales Agents close that gap automatically: they follow up with every new lead within seconds of inquiry, run multi-step nurture sequences across SMS and email, and reactivate past clients who have gone quiet. Every interaction is personalised to the lead, tracked to outcome, and optimised over time. The result is more booked appointments from the same lead volume — without adding sales staff.

Is Your Customer Acquisition System Fully AI-Native?

The External Hub Checklist covers all 20 activities that define an AI-native customer acquisition platform — from AI search visibility and GEO optimization to AI receptionist deployment and full-funnel analytics. Most businesses have completed 3 to 5 of them.

Frequently Asked Questions

What is an AI sales agent?
An AI sales agent is an agentic AI system that autonomously handles outbound sales tasks — following up with new leads, reactivating past clients, qualifying prospects, and moving them toward a booked appointment or signed agreement. Unlike a chatbot that responds to questions, an AI sales agent takes initiative: it decides when to reach out, what to say, which channel to use (SMS, email, or voice), and how many times to follow up based on the prospect's behaviour. CastleCS deploys AI sales agents trained on your specific offers, objections, and conversion goals.
What is Agentic AI and how is it different from a chatbot?
Agentic AI refers to AI systems that can plan, decide, and act autonomously to achieve a goal — without requiring a human to direct each step. A chatbot responds when a human initiates a conversation. An agentic AI system proactively initiates actions: it monitors your CRM for new leads, decides the optimal time to reach out, sends a personalized message, evaluates the response, and determines the next step — all without human instruction. For sales, this means no lead goes cold because someone forgot to follow up. The AI follows up every time, on schedule, until the prospect converts or opts out.
How quickly does an AI sales agent follow up with a new lead?
CastleCS AI sales agents are configured to follow up with new inbound leads within 60 seconds of inquiry — regardless of the time of day. Research consistently shows that lead conversion rates drop dramatically after the first five minutes. By responding within seconds, AI sales agents capture the prospect's attention while their intent is highest, before they've moved on to a competitor.
What channels do AI sales agents use to follow up?
CastleCS AI sales agents can follow up via SMS, email, and outbound voice calls — or a combination of all three, in a configured sequence. Most service businesses see the highest response rates with SMS as the first touchpoint, followed by a voice call if there's no response within 24 hours, followed by email. The sequence is configured based on your industry and client preferences.
Can AI sales agents handle objections?
Yes. CastleCS AI sales agents are trained on your most common objections — price concerns, timing objections, competitor comparisons — and configured with responses that address each one naturally. The AI can handle 3–5 objection exchanges before escalating to a human sales rep for complex negotiations. For most service businesses, the AI closes the majority of routine follow-up conversations without any human involvement.
What is the difference between an AI sales agent and an AI receptionist?
An AI receptionist handles inbound communication — answering calls, responding to website inquiries, booking appointments for people who are already reaching out to you. An AI sales agent handles outbound communication — proactively following up with leads, reactivating past clients, and moving prospects through your sales pipeline. CastleCS deploys both as part of an integrated system, so every inbound lead is captured by the AI receptionist and immediately entered into the AI sales agent's follow-up sequence.

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What Clients Say

“The AI sales agent follows up on every estimate request within minutes — even at 10pm on a Saturday. Our close rate on estimates has gone up significantly and I'm not chasing leads anymore. This is the kind of automation that actually pays for itself.”

J.H.

Owner, Roofing & Exteriors Company — Lower Mainland, BC

Google Review

“We were spending money on ads but losing leads because no one was following up fast enough. CastleCS built an intake and follow-up system that qualifies prospects before they ever reach our team. Our conversion from inquiry to consultation has more than doubled.”

D.L.

Managing Partner, Personal Injury Law Firm — Vancouver, BC

Google Review

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