The lost quarter — and why speed can't come before safety
Across the trades, around one in four enquiries is lost purely to a slow first reply. Customers message two or three engineers, get on with their day, and book whoever comes back first with a sensible answer. For a gas engineer halfway through a service or under a floor chasing a pipe run, you're often not the one who replied first.
But gas work has a complication the other trades don't share in quite the same way: getting a quote wrong here isn't just an awkward conversation, it's a safety question. So "just reply faster" can't mean replying faster and looser. It has to mean replying instantly to the jobs that are genuinely safe to price on sight — and refusing, every single time, to guess at the ones that aren't.
Split your work into two piles
Every gas engineer's job book divides cleanly in two, and good automation has to respect the line between them more carefully here than in any other trade:
Pile one — jobs you price the same way every time
These can be estimated the moment the enquiry lands, straight from your own rates:
- Annual boiler service — fixed price by boiler type or age
- Landlord gas safety certificate (CP12) — per property, including portfolio rates for landlords with several rentals
- Cooker or hob safety check alongside a CP12
- A known repair on a known part, where the fault's already been diagnosed
- Boiler service plus minor parts top-up to a standard spec
Pile two — jobs that always need you, in person, first
These should never be auto-priced, and the assistant doesn't get to make exceptions:
- New boiler installation — system sizing, flue route, system design
- Full heating system diagnosis or a power-flush assessment
- Any smell of gas or suspected carbon monoxide issue
- No heating in winter for an elderly or vulnerable customer
- Commercial, LPG, or anything outside standard domestic gas work
This is exactly how a well-built quoting assistant should behave for gas: it knows your fixed-price jobs, and it knows the "always escalate, no exceptions" list — which, for this trade, is longer than for any other. That's by design, not a limitation.
How automated WhatsApp quoting works for a gas engineer
It sits on top of a WhatsApp business number and handles the front of every enquiry. A typical fixed-price job runs like this:
- Customer messages. "Hi, I need a landlord gas safety certificate before my new tenant moves in." The assistant replies in seconds and asks for the property details it needs.
- It gathers the basics. Number of gas appliances, property type, whether it's a re-let or a first letting — the same things you'd ask before quoting yourself.
- It estimates on your rates for the fixed-price work, makes clear it's an estimate, and confirms you'll sign off the final figure.
- It offers your slots and can take a holding deposit so the booking sticks.
- You approve the price — it lands on your phone, one tap to send. For a new install or a heating fault, it doesn't try to guess; it books you a survey or callout slot instead.
If a message mentions a smell of gas, a carbon monoxide concern, or anything that reads as an emergency, the assistant doesn't queue it like a normal enquiry. It tells the customer to call the National Gas Emergency Service on 0800 111 999 immediately, and flags you directly so you know straight away — no price, no slot-booking, no delay while it waits for you to glance at your phone.
You can watch a 30-second demo of the everyday flow — the customer's chat on one side, your approve-before-send screen on the other. (The demo uses a plumber's prices, but the same logic — and the same safety override — carries straight across to gas work.)
"It's gas — you don't let an algorithm anywhere near the price, let alone the safety call"
Correct, and that's exactly the point. A quoting assistant that guessed at gas pricing, or worse, tried to judge whether a situation was dangerous, would have no place on a Gas Safe registered engineer's WhatsApp. This one doesn't try.
It never invents a price and it never makes a safety judgement. It only quotes from the fixed-price rules you set, and the moment a message touches anything on your escalation list — a new install, a heating fault, a hint of gas or CO — it stops and hands the conversation to you, untouched. Even the everyday quotes don't go out until you approve them; the draft sits on your phone, you glance at it between jobs, tap to send or adjust the figure. You remain the only Gas Safe judgement in the loop, on every job, every time.
It quotes what's genuinely safe to quote on sight, and stops dead the moment a job needs your registration and your eyes. That's not a robot pricing gas work — it's a fast, polite gatekeeper that knows exactly where its authority ends.
What it doesn't change
Your number stays yours — it runs on a separate business line, and you can switch it off whenever you want to take a chat yourself. Leads from the Gas Safe Register's find-an-engineer tool, Checkatrade, a letting agent you work with, or a landlord's recommendation all land in the same place and get the same instant, careful first reply. After a job's done, it can nudge the customer for a Google or Checkatrade review — useful for winning the next landlord, and a step you usually mean to take and rarely get round to.
Is it worth it?
If you're paying for leads, you're already paying for the enquiries you then miss. For a gas engineer, recovering one landlord's annual CP12 round, or a single boiler service booked while you were up a ladder on another job, typically covers the cost several times over — before you count the evenings you stop spending on quoting admin.
It's being rolled out for plumbers and electricians first, with gas and heating engineers next. See how it works, including the price, on the WhatsApp Auto-Quote page, or tell us about your work and we'll build your fixed-price list and your "always escalate, no exceptions" list with you.
The one thing to do this week
Write your escalation list before your price list. For every other trade, the quoting list comes first and the escalation list is the leftover. For gas, get the safety list right first — the smell-of-gas, the CO concern, the new install, the vulnerable customer with no heat — and everything that's genuinely left over is what's safe to automate.