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$200K–$1M TYPICAL ANNUAL LEAKAGE·14-DAY INSTALL PER AGENT·NO SOFTWARE CHANGES REQUIRED TO START·SIX AGENTS · 12 TRADES·BILINGUAL EN/ES BUILT INTO RECEPTIONIST·INDUSTRY-BENCHMARKED METHODOLOGY·$200K–$1M TYPICAL ANNUAL LEAKAGE·14-DAY INSTALL PER AGENT·NO SOFTWARE CHANGES REQUIRED TO START·SIX AGENTS · 12 TRADES·BILINGUAL EN/ES BUILT INTO RECEPTIONIST·INDUSTRY-BENCHMARKED METHODOLOGY·
Stack6.ai
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PRODUCT / QUOTE-FOLLOW-UPStack6

Quote Follow-Up

Chases every cold estimate until it converts or closes out.

Personalized SMS and email follow-ups across a 21-day sequence. Reads intent in the reply and hands hot leads back to a human before they cool. No outbound AI voice — the chase runs over text and email only.

How it works

Start with the free ~45-minute Leak Audit. We tell you whether this agent actually fits your shop before anyone quotes anything. Stack6 handles the install end-to-end and walks the scoping numbers with you live.

DiagnosticFree, ~45 min
Setup$1,800
Monthly$279/mo
Time to live~14 days, typical
CancelAnytime, 30d notice
Annual prepay: 5% off setup + monthly (paid up front)
Run the free Leak AuditOr get a custom quote
THE LEAK
$8,000–$45,000/mo
Median shop · lost to this leak

Cold estimates × your typical ticket × the close-rate gap between followed-up and not-followed-up quotes. Industry benchmark: estimates that get a sequence within 7 days close 2.4× more often than ones that don't.

The free Leak Audit returns the number for your shop — built from your call volume, ticket size, and close rate. No mock data, no industry averages.

01What it does

Cold estimates lose 60% of their close rate by day four. Your estimators are already in a crawl space or on a roof. They aren't following up. We are — over SMS and email, never over outbound voice.

Multi-touch sequences across SMS and email (no outbound AI voice)

Intent classification — hot leads escalate to humans, cold leads close cleanly

Pricing-objection handling tuned to your shop

Per-estimator close-rate reporting after install

Dispatches hot replies via SMS or dispatcher portal

02How it shows up in the field

Three real scenarios from real trades.

The math is universal across residential service. The lived experience is trade-specific. Here's what this agent looks like inside HVAC, plumbing, and electrical shops doing $1M–$10M.

HVAC

$18K furnace replacement quote. Estimator never followed up.

Homeowner got a quote on Friday. Said "we'll think about it." Estimator is now on three other jobs and a callback. Stack6 sends a personalized SMS Tuesday morning referencing the quote line items, answers the unspoken price objection with a financing note, and waits for the reply. If hot, the estimator gets a Slack ping with the conversation. If cold, the system closes cleanly with one final ask.

Outcome

Recovered 1 in 4 cold estimates that would have otherwise gone silent — 3 extra furnace replacements per month for a 5-tech HVAC shop.

Plumbing

Repipe quote in May. Customer ghosted until October.

Plumbing repipe quote went out in May. Customer never replied. Five months later, they're getting a worse quote from a competitor. Stack6 sent four touches across 21 days — SMS day 2, email day 5, SMS day 12, email day 21 — each one a different angle. The customer replied on touch 3 with "Can you do the work in July?"

Outcome

$24,000 repipe recovered without anyone on the team noticing the quote had gone cold.

Electrical

Panel upgrade quote. Three estimators, no follow-up system.

Three estimators, 40 quotes outstanding at any time. Owner has tried follow-up reminders in the FSM — nobody uses them. Stack6 runs the sequence automatically from the moment a quote is sent, classifies every reply, and only escalates hot replies to the right estimator. Cold replies close out without a human ever opening them.

Outcome

Close rate on cold estimates climbed from 11% to 26% in 60 days. Three extra panel jobs/month.

03How it integrates

Lays on top of whatever you're already running.

Nothing has to come out for us to go live. Keep your existing scheduler, dispatch board, and CRM — the agent works alongside them. Calendar and CRM integrations are available and get configured during onboarding, only where it earns real time back.

Compatible with
Twilio
Don't see your stack? Flag it in the Leak Audit. We'll walk through what you're running on the scoping call and pick out only the pieces that pay for themselves in dispatcher hours.
04Recovery math

What this agent usually pulls back.

Quotes go out. Three days pass. Customer goes with whoever called back first. Multi-touch follow-up systems add 8-28% to close rates per industry data — and at $8K–$15K install tickets, every recovered close drops to gross margin minus install cost.

Typical annual recovery range
$60K–$300K

The range comes from industry benchmarks for residential service shops your size. Your number gets calculated against your own call volume, average ticket, and close rate inside the free Leak Audit.

05Stack6 vs. the alternative

Stack6 vs. Manual follow-up by your estimators

Most shops know they should follow up. The reason they don't isn't laziness — it's that estimators are billable when they're estimating, not when they're texting old quotes. Stack6 vs. the manual reality:

 Stack6Manual follow-up by your estimators
ConsistencyEvery quote gets a 4-touch sequence across SMS + email over 21 days. No estimator has to remember.Inconsistent. Estimators follow up on the deals they remember; the rest go silent.
Reply intent classificationHot, warm, and cold replies get routed differently. Hot replies escalate to the original estimator with full context.Estimator manually reads every reply, decides what to do. Slower per-touch; misses signal in 1-line texts.
Voice channelNo outbound AI voice calls — text and email only. A2P 10DLC compliant. Voice-only customer experience preserved.Some vendors push outbound AI voice for follow-up. Compliance risk (TCPA, A2P) and customer-experience risk both real.
ReportingPer-estimator close-rate lift reported monthly. You see which estimator's quotes the system is recovering.Most shops have no idea what their cold-quote close rate even is.
What it isn't

What this won't do: re-quote the work, negotiate price, or handle scope changes. It's a chase, not a sales rep. The moment the customer wants to talk pricing or change the scope, the conversation escalates to a human — every time.

06Common questions

The questions every shop asks before installing this.

Won't customers hate getting follow-up texts?
The sequence is short (4 touches across 21 days) and stops the moment they reply or opt out. Industry data: 60%+ of customers who eventually close said the follow-up reminded them, and another 20% said it surfaced a question the estimator hadn't answered. The minority who unsubscribe were never going to close.
Does this make AI voice calls to follow up?
No. The agent runs over SMS and email only. We made that decision deliberately — outbound AI voice for sales follow-up violates A2P 10DLC compliance posture and erodes customer trust. Inbound voice is the Receptionist agent's job; this agent is text-only.
How does it know which estimator made the quote?
Stack6 ingests your quote feed (most FSMs and quote tools have a webhook or export) and tags each follow-up sequence to the original estimator. Hot replies route back to them in Slack, SMS, or your dispatcher portal — whichever you prefer.
What close-rate lift should we expect?
Industry benchmark for residential service is a 2.4× lift on the cold-estimate close rate when a structured sequence is in place. We typically see 1.8–3× across our customers. Per-estimator results vary based on quote quality and original lead quality.
Can I review and approve every message before it sends?
Yes, in the first 30 days you can review every outbound message. After you trust the tone, most operators flip to fully autonomous. Tone is tuned to your shop during onboarding — you can listen to sample sequences before any go out.
What happens to estimates that don't have phone numbers or emails?
They're flagged in a weekly report so your team can fix intake at the source — most shops discover they're collecting contact info inconsistently. We don't fabricate contact info or scrape it from anywhere.
07Other leaks in the stack

This is one of six. The full Leak Audit finds the other five for your shop.

Receptionist

An AI phone agent that picks up every call within one ring.

See Receptionist →
Review Automation

Collects reviews automatically. Catches problems before they go public.

See Review Automation →
Dormant Reactivation

Mines your dormant customer base for revenue you forgot you had.

See Dormant Reactivation →
See all six agents + bundlesOr run the full Leak Audit →

Want to see what Quote Follow-Up would do for your shop?

The free Leak Audit returns a recovery estimate built off your own numbers, plus a ~14-day install plan (typical) and exact pricing for the agents that actually belong in your stack.

Run the Free Leak AuditBook an AI strategy call
Cancel anytime30 days noticeNo early-termination feesYour data, your numbers