A practical guide for solo electricians and HVAC contractors who keep losing nights-and-weekends work to whoever picks up the phone first. Five real options, what each one actually does, and a way to start for free.
The service call that comes in at 8pm on a Saturday is usually the most valuable one of the week. It's urgent, the customer isn't price-shopping three quotes, and they'll book with whoever answers. If you're on a ladder, asleep, or at your kid's game, that call goes to voicemail — and a homeowner with a dead AC in July or a tripping panel doesn't leave a voicemail and wait until Monday. They call the next name on the list.
Want to put a real number on it? Use the free missed-call revenue calculator — plug in your average job value and how many calls you miss, and see what slow response is likely costing you each month.
Here are the realistic options, from "free but limited" to "expensive but full-service," with the honest trade-offs of each.
The zero-cost baseline. Record a greeting that sets expectations ("I'm on a job — text me your address and the problem and I'll get back to you tonight"), and build the discipline to clear voicemails first thing every morning. The catch: urgent callers rarely leave voicemails, and "first thing tomorrow" is often too late for an emergency. This keeps the customers who would've waited anyway, and loses the ones worth the most.
Plenty of contractors do this for years. It works — until it burns you out, interrupts dinner, or you simply can't get to the phone with your hands full. It also doesn't scale past you. There's no shame in it, but it's a ceiling, not a system.
A human picks up under your business name and takes a message. The upside is a real person. The downsides: it's the most expensive option, the operators are generic (they don't know a Square D breaker from a contactor), they usually just take a message rather than confirm an appointment, and they can't text the customer a confirmation or get the job onto your calendar.
Platforms aimed at mid-market and enterprise contractors do scheduling, dispatch, invoicing, and more. They're powerful, but they're built for shops with crews and office staff, take weeks to set up, and the call-capture piece is often an add-on. For a solo operator or a sub-5-person crew, it's usually more system than you need and more money than makes sense.
A voice agent answers your business line when you don't, identifies itself honestly as your after-hours assistant, asks the right trade-specific intake questions, and texts the customer a confirmation within about a minute — so they stop calling other contractors. You wake up to a clean queue with names, addresses, the problem, and the recording. This is what SiteLine does — start free to explore the workspace and a sample captured-call flow, then switch on the 14-day trial (cancel before day 15 and you won't be charged) to capture your own calls.
| Voicemail | Answering service | Field-service suite | SiteLine voice agent | |
|---|---|---|---|---|
| Typical monthly cost | $0 | $300–600 | $$$ | $96 (free to start) |
| Captures the call live | No | Human | Add-on | Yes |
| Trade-aware intake questions | No | Generic | Yes | Yes |
| Texts customer a confirmation | No | Rarely | Yes | Yes |
| Built for solo / under-5 crew | Yes | Yes | Mid-market | Yes |
| Setup time | — | 2–3 days | Weeks | ~15 min |
No card required · Built for electricians & HVAC
Start freeThe agent is upfront that it's an after-hours assistant — it never pretends to be a person. Most homeowners would rather be heard and texted a confirmation at 9pm than hit a voicemail box and have to remember to call back Monday.
The agent is set up to flag urgent language (burning smell, sparking, smoke, no heat/AC) and alert you immediately with the recording. You decide whether to dispatch or tell the customer to call emergency services.
No. The free plan lets you explore the full workspace and a sample captured-call flow. Capturing your own after-hours calls switches on with the 14-day trial (cancel before day 15 and you won't be charged); paid is $96/mo with no contract — cancel anytime. We'd rather you try it on real calls than take our word for it.
BizBot Technology LLC, a small US company. A real person answers hello@bizbottech.com. SiteLine is built specifically for residential electrical and HVAC service operators because the existing options are either too expensive or not deep enough for the trade.