For HVAC contractors & techs

HVAC Answering Service

Never miss a no-heat call again

Fast Response is an HVAC answering service built on your own business line. The AI answers no-heat and no-AC calls 24/7, triages the emergency, books the job, and dispatches your on-call tech — and any of your team can still pick up live. So a call at 2am becomes a job on the board, not a voicemail your competitor beats you to.

Try It FreeHear the AI: (424) 381-0731
No card neededFrom $29/moLive in about 5 minutes
D
Diane
Live
CALL SUMMARY
Reason
No heat, furnace won't ignite
Urgency
Emergency · after-hours
Details
2-story home · pets on site
Next step
On-call tech dispatched, ETA texted
View transcript
(424) 381-0731
Your own US number, pick any area code
It's a real phone line you and your crew can use, not just an AI. Call, text & chat from the app, put it on your trucks and website, forward it to your cell, or port in the number you already have. The AI only picks up what your crew doesn't.
Available oniPhoneAndroidany web browser
Here's a Saturday. You barely touched your phone.
WHO PICKED UPAI · nobody on the team answeredYour team · same number, from the appText thread
7:20 AM
AI answeredNo-cooling call before you're on site
Diagnostic booked 11am
“AC quit overnight and the house is already 84 degrees.”
Answers on the first ring, captures the address and the symptoms, and books a diagnostic into your next open slot, then texts the customer a confirmation.
9:35 AM
Luis answeredMaintenance-plan member, fall tune-up
Tune-up booked · logged
“Am I due for my fall service yet?”
Rang the crew; Luis picked up live from the app on the business number. The call was still transcribed, summarized, and filed on the customer.
11:48 AM
SMS · auto-textHung up before anyone answered
Texted back in 5 seconds · estimate booked
Missed call · 11:48 AM
Sorry we missed you! This is Summit Heating & Air. What's going on with your system? Reply here or grab a time: summithvac.co/book
no hot water since this morning
We can help. Gas or electric water heater? I can get a tech out today between 2 and 4.
gas. 2-4 works
Caller hung up on ring four. The missed-call automation texts them instantly from your business number, and the AI carries it by text until it's booked. The thread lands in the same inbox as your calls.
1:15 PM
AI answeredRoutine repair
Booked · next open slot
“My thermostat keeps resetting itself.”
Not an emergency. Captures the equipment and address, books it into the next open slot, and leaves your afternoon uninterrupted.
3:02 PM
Marcus answeredSupplier, parts are in
Call logged
“Your compressor came in, want it held at the counter?”
The call rang the crew; Marcus took it live on the same number and kept the job moving.
6:40 PM
AI answeredPricing question after hours
Answered · lead captured
“What's your diagnostic fee, and do you cover my area?”
Answers from your pricing and service area, captures the lead, and logs it so your office can follow up first thing.
1:52 AM
AI answeredNo-heat emergency
Emergency dispatched · tech ETA texted
“Furnace died and we have a newborn in the house.”
Asks the symptoms and address, flags it a true emergency by your rules, and rings your on-call tech, then texts the customer an ETA. It only wakes you if your rules say a human must. You read the summary at breakfast.
7 touch points
4 by AI, 1 auto-text, 2 by your crew
3 jobs booked
without a single callback
0 wake-ups
the 2 AM no-heat was dispatched while you slept
Try it before your next after-hours call.
Try It FreeHear the AI: (424) 381-0731
No card needed · free to try · live in about 5 minutes
Real calls

Hear the AI answer, in its own voice.

Real recordings from the same assistant that will answer your line: booking, capturing details, and switching languages mid-call.

AI ASSISTANT
AI Appointment Booking

This assistant booked an appointment straight onto our client's calendar — automatic win!

1:34
AI ASSISTANT
Inbound Call FAQ

This assistant handled questions from inbound calls about a short-term rental listed for sale on the MLS.

2:30
AI ASSISTANT
Collecting Information

This assistant collected customer information and sent an SMS notification with it to the business owner.

0:49
AI ASSISTANT
Switching to Mandarin

Our assistant speaks more than 30 languages — hear it switch from English to Mandarin mid-call.

0:36

24/7 emergency HVAC answering, no-heat and no-AC

When a furnace dies at 11pm in January or an AC quits during a July heat wave, the homeowner calls straight down the list and hires whoever picks up. Fast Response answers on the first ring, asks what's happening and where, and decides whether it's a true emergency using rules you set. A no-heat call with an infant in the house or a no-cooling call in triple-digit heat is flagged urgent and rings your on-call tech within seconds, with the address, the symptoms, and access notes, so they can roll without playing voicemail tag.

A routine request — a rattling unit, a filter change, a question about a maintenance plan — is booked into your next open slot instead of waking anyone up. Either way, any tech or your office can pick up live from the app if they want the call, and everyone sees the same recording, transcript, and summary in one shared inbox. No scripted call center that knows nothing about HVAC, no busy signal during the seasonal rush, and no emergency left on hold.

Pricing

Simple, flexible pricing

Start at $29/mo and scale up when you're ready. No contract.

Starter
$29/mo
Handle everyone who contacts you.
For operators who are done losing business to voicemail.
250
Voice min
30
AI min
250
Texts
∞
Chats
Then$0.06/min·$0.06/text·$0.25/AI min
Calls and texts, answered 24/7 — by you or the AI, in 29 languages
Outbound AI calls — have the AI call a contact back to follow up, one at a time
Website chat embed — chat with your website visitors manually or with AI
Emergency triage and dispatch to your on-call staff
SMS and email AI call summaries
Try it free →
No card needed · cancel anytime
Most popular
Pro
$79/mo
Handle everyone — and automate the follow-through.
Everything in Starter, plus your whole team, automations, and integrations.
1,000
Voice min
100
AI min
1,000
Texts
∞
Chats
Then$0.05/min·$0.05/text·$0.18/AI min
Everything in Starter, plus
Team accounts — unlimited users , your whole team can share the same number
Automations — trigger a text or send call details to any tool, filtered by conditions you set
Integrations — connect the tools you already use through automations
Lower overage rates
Priority support
Try it free →
No card needed · cancel anytime
Scale
$249/mo
Built around your operation.
For high-volume operators who want the phones handled their way.
2,000
Voice min
250
AI min
2,000
Texts
∞
Chats
Then$0.04/min·$0.04/text·$0.16/AI min
Everything in Pro, plus
Mass outbound AI calling & texting — import a list and launch AI call or text campaigns, and track every result
Toll-free number option — use a 1-800 number instead of a local one
Custom workflows — routing, triage rules, escalation paths, and scripts built with you
White-glove onboarding — done-for-you setup
Lowest overage rates
Direct support line, same-day response
Try it free →
No card needed · cancel anytime
Free to try — no card needed
Your own business phone number
iOS, Android & web apps included
Calls, texts & website chat — you or the AI
No contract — cancel anytime

Stop sending customers to voicemail

Get your AI business line answering calls, texts, and chats in about five minutes.

No card needed · available on iOS, Android & web
Dashboard
Test Call AssistantPhone DialerRiverside PM
+1 (916) 555-0142
95 calls in last 7 days · 18 after hours · 3 open tasks
Last 7 days ▾Edit dashboard
Needs attention now
3items
Follow-up tasks across 3 calls.
Call volume
95calls+12
71 incoming · 24 outgoing.
After-hours calls
18of 95+4
Outside 9am–6pm. AI answered all 18.
AI vs team handled
AI 61Team 34
Team time saved
3h 12m
Talk time the AI absorbed instead of your team.
Tasks from Calls
3 open across 1 type · 1 overdue
All tasks →
Leasing1
1 overdue
Confirm ShowingOverdue 4h
Caller asked about the 2BR on Oak St. AI booked 11am tomorrow — confirm access with the current tenant.
Suggested owner: leasing · from +1 (916) 555-3071
Priya Gill
+1 (916) 555-3071
AI CallFollow-up
Prospective tenant asked about price, pet policy and availability. AI answered from the listing and booked a showing into Dana's calendar.
▶0:00 / 1:22
Open full callAI CallManual CallTextShare
Latest Calls
95 calls · 71 incoming · 8 unreviewed
View all calls →
AllNeeds actionUnreviewedMore (8) ▾
PG
Priya Gill
+1 (916) 555-3071
Aug 13, 7:15 AM · 1m 22s
LESS ▴
New lead · leasingAI Call1 task
Outcome
Follow-up required
Handled by
AI Call
Status
Customer ended
How it ended
AI booked a showing and offered to text the address.
Details captured
Unit
2BR · 1450 Oak St
Budget
$2,400/mo
Move-in
Sept 1
Pets
1 cat
Pre-qualified
Yes · 3× income
Next step
Showing tomorrow 11am
▶0:00 / 1:22
AI CallManual CallTextShareMark Reviewed
Marcus T.
+1 (916) 555-4410
Human CallVendor
Owner check-in
+1 (916) 555-2298
Human CallIncoming
AI → Dana takeover
+1 (916) 555-7756
AI CallLeasing
Questions

Frequently asked questions

Fast Response starts at $29/mo and covers your whole crew, with no per-seat fees and no contract. Most companies are live in about 5 minutes, and you only pay more if you go past your monthly call and text allowances — far below the $200–$500/mo a traditional HVAC call center runs.
Yes. The AI answers 24/7, decides whether a call is a true emergency using rules you set — no heat, no cooling in a heat wave, a gas smell — and rings your on-call tech within seconds, while routine repairs get booked for the next open slot.
It books straight onto your connected Google or Outlook calendar and texts the customer a confirmation. For field-service tools like ServiceTitan, Housecall Pro, or Jobber, it pushes the call details over through Zapier or a webhook — we don't claim a native two-way sync we don't have yet.
Both. The AI answers every call in 29 languages so nothing hits voicemail, and any tech or your office can pick up live or take over a call the AI is already handling. Whoever takes it, you get one recording, transcript, and summary per call.
Unlimited concurrency means every call is answered at once. A day that triples your volume never hits a busy signal, so the overflow doesn't go to a competitor.
Yes — set up your service area, diagnostic fee, financing, and licensing, and the AI answers those automatically, so your team stops repeating themselves and stays on the work that pays.
Fast Response gives you a U.S. business phone number and lets you choose when to pick up. Any call not answered by a human is handled by AI — it can answer almost any question, book appointments, capture leads, transfer calls, and send follow-up texts.
Of course. You can add call forwarding so missed calls from your existing line go to your AI assistant. In our mobile app, your personal calls and Fast Response calls are clearly labeled on the call screen, so you always know which is which.
You can make calls, send single or mass texts, and chat manually from our web or mobile app. AI is there as a backup for when you're not available to attend to your customers.
Onboarding takes about 5 minutes. You'll be able to make calls, send texts, and chat — with or without AI — right away. Mass outbound texting requires a separate A2P registration per U.S. law; approval usually takes 2–3 weeks.
Your AI answers 24/7 by default — evenings, weekends, holidays, and your busiest hours. You can also set business hours so calls ring your team during the day and route to AI outside of those windows.
Yes. You can place calls and send single or mass texts from the web or mobile app, and AI can send follow-up texts on your behalf. You're always in control of what goes out.
No — it works alongside them. AI handles conversations based on the scenarios you set, captures the right details, and logs everything. Anything that needs a human gets handed off so your team stays focused on higher-value work.
English, Spanish, French, and Portuguese — for both calls and texts.
You'll get an SMS and email every time AI handles an inbound call, including a summary with suggested next steps and a direct link to the full recording and transcript.
All data is encrypted in transit and stored on U.S.-based servers. Your recordings, transcripts, and summaries stay private unless you choose to share them, and we never sell your data.
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