Komms · Home services
An answering service for HVAC, plumbing and home services
A Komms agent answers when the office is closed or every tech is on a job. It asks what is wrong, where, and how urgent it is, takes the contact details, puts emergencies through to your on-call number, and sends everything else to your dispatch system for the morning.
50,000 free tokens for new accounts — $50 of talk time, about 625 minutes. No credit card needed.
Starts answering in a typical 162 ms
When a caller stops talking, Komms starts its reply in a median 162 milliseconds. We timed every turn on our live demo line, and every call report shows the timing, line by line.
| Turns | Reply within |
|---|---|
| Half (median) | 162 ms |
| 75% | 181 ms |
| 90% | 211 ms |
| 95% | 283 ms |
Measured from the moment the caller finishes speaking to the moment our reply starts and goes to the voice: 1,048 live turns across 502 calls on the Komms demo line, Oct 6–7, 2026, from the Komms call logs. 86.5% of turns started within 200 ms. Generating the voice and carrying it over the phone network add to what the caller hears.
See for yourself: +1 (618) 228-1183. It is a live Social Security disability (SSDI) intake line: it asks real screening questions and calls are recorded. Hang up any time.
Books appointments and looks things up during the call
A Komms agent can call your systems while the caller is on the line. You set up each API connection once, test it, and use it in any step of the script.
| What it does | How |
|---|---|
| Knows the lead before the call | Your dialer or CRM sends each lead’s details through the Komms Dialer API, one at a time or in a batch, matched to the call by phone number. The agent uses them on the call. |
| Looks up the caller | Calls your CRM or any API with the phone or account number and uses what comes back: a name, an order, a case status, an existing appointment. |
| Checks before going on | An API call can answer yes or no, and the call takes a different path for each: an existing customer, an address in your service area, a time that is still free. |
| Keeps what it finds | Any field in the answer can be kept as a call variable, used later in the call and sent on in your webhook. |
| Books the appointment | Asks for the day and time, checks it against your booking system, books it through that system’s API and confirms the time out loud. |
| Books on your Google or Microsoft calendar | When calendar scheduling is enabled for your account, connect a Google or Microsoft calendar and add a Schedule step. The agent offers open times, either the first free one or a choice, and books, moves or cancels the appointment on the calendar you pick. Microsoft calendars must belong to the mailbox you connect. Other calendar integrations are available on request. |
| Changes or cancels | Finds the caller’s appointment and moves or cancels it through the same API, where your booking system allows it. |
| Saves the result | Writes the lead, the answers and the outcome to your CRM during the call, and sends a webhook when the call ends. |
Connections use GET or POST requests with JSON, form or GraphQL bodies, and sign in with an API key, a bearer token or a user name and password, stored encrypted. You can test each one before a call uses it and see the request that went out and the answer that came back. Small scripts can work out or reformat a value between steps. The Dialer API uses an API key, and can also read agent availability and set a cap on calls at the same time for a campaign number.
Who it is for
For HVAC, plumbing, electrical, roofing and other home service companies whose calls arrive after hours or while everyone is out on jobs.
The script
Each row is one node in the Komms flow builder: what the agent says, the answer it listens for, and where the call goes next.
| Node | The agent says | Listens for | Next |
|---|---|---|---|
| Greeting | Thanks for calling. Is this an emergency, or can I take the details for a visit? | Emergency or not | Emergency: Details, then Transfer. Otherwise: Details |
| Details | Asks what the problem is and how long it has been happening. | A short description | Address |
| Address | Takes the service address, name and best number. | Address, name, phone | Timing |
| Timing | Asks which day and time window work best. | A day and time window | Wrap-up |
| Transfer | Puts emergencies through to the on-call tech. | — | Warm transfer to the number you set |
| Wrap-up | Reads the details back and says what happens next. | — | Webhook sends the job to your dispatch system or CRM |
What it costs
| What | Amount | Cost a month |
|---|---|---|
| Talk time | 400 calls × 3 min = 1,200 minutes at $0.08 | $96 |
| Phone number | 1 × $15 a month | $15 |
| Total | Telephony, the AI model and a standard voice are inside the $0.08, billed in 6-second increments | $111 |
400 calls a month, 3 minutes each. New accounts get 50,000 free tokens first (about 625 minutes); after that the minimum purchase is $20. Bring us your bill: lower prices may apply at your volume. Full pricing.
Build it in Komms
- Sign up and create a new inbound script.
- Add the nodes above and decide what counts as an emergency.
- Load your service area, hours and the services you offer into the knowledge base.
- Point Transfer at the on-call number and the webhook at your dispatch system.
- Test it in Chat, then forward after-hours and missed calls to your Komms number.
Questions
- How much does an HVAC or plumbing answering service cost on Komms?
- $0.08 a minute, with the phone call, the AI and a standard voice included, plus $15 a month per phone number. 400 calls a month at 3 minutes each is about $111 a month. New accounts start with 50,000 free tokens, about 625 minutes, with no credit card.
- What happens on an emergency call?
- The agent takes the details and transfers the caller to the on-call number you set, with retries and a timeout you choose.
- Can it answer several calls at once?
- Yes. Komms has no concurrency limits, so calls are answered as they arrive.