⚡ Only 10 onboarding slots a month — check availability
AI dispatcher · HVAC & roofing

How many of your last 10 missed calls were a real job? Not zero.

Diallux AI notes the problem, asks the right follow-up questions, and books the right engineer — 24/7. Watch it happen, live, below.

24/7 — every call 1–100 calls at once Money-back guarantee

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Receive a live call from our AI dispatcher and hear it handle a real HVAC or roofing job.
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Watch it work

This is a real call, handled end to end

Actual product — not a mockup. Detail capture, engineer matching and booking, live.

Dispatch board — Diallux AI Live — call in progress
Incoming call — answered by Diallux AI 00:00
Job card#DX-1047
CustomerSarah Thompson
Fault codeF.28
Slot
Booked
EngineerGAS SAFE
NameDave Reynolds
Accred.Vaillant
Distance2.1 mi
Dispatched
The gauge

What's the silence costing you?

Missed calls per day
3
%Would have booked
40%
£Average job value
£300
Just 3 missed calls a day is costing you
£10,800
Every single month
90 missed calls
And it compounds
A day£360
A week£2,520
A month£10,800
A year£131,400
Defaults: 40% booking rate (ServiceTitan industry benchmark, conservative end) · £300 average job (Checkatrade UK average boiler repair)
0%
of home service calls go unanswered
0%
of those callers never call back
0%
buy from whoever answers first
SOURCES — ServiceTitan contractor call-line analysis · 411 Locals · MIT / InsideSales.com response-time study
The system

What happens on every single call

Job sheet — standard call flowREF: EVERY-CALL
01

It picks up. Every time.

3am, Sunday, mid-job with your hands in a boiler.

Revenue
02

One call or a hundred at once

Cold snap floods the phones — every caller gets answered. No engaged tone.

Revenue
03

It notes everything down

Make, model, fault code, symptoms — a fully briefed job, not a message.

Hours saved
04

It books the right engineer

Qualified for the fault, near the job, real diary slots — confirmed on the call.

Revenue
05

Your engineer turns up prepared

Fault and readings travel with the job. Right parts on the van.

Hours saved
06

You just get told

Booked, handled, logged. Your evenings back.

Hours saved
The briefing

It knows your business before it takes a call

Your website, your price lists, the way you actually talk about the work — it all funnels into your dispatcher.

Your websiteSOURCE 01
yourcompany.co.uk
/services
/pricing
/areas-covered
/emergency-callout
/about & accreditations
/contact & opening hours
Your documentsSOURCE 02
price-list-2026.pdf
callout-rates.xlsx
engineer-rota.csv
boiler-brands-we-fit.docx
gas-safe-certificates.pdf
terms-and-warranty.pdf
AI DispatcherSTANDBY
Your dispatcher
Briefed on your business
Ready
Pricing

Three tiers. Every one captures the detail, dispatches and books.

Not a generic AI receptionist reskinned for your trade — every script, follow-up question and dispatch rule is built around how HVAC and roofing calls actually go. Month-to-month, cancel anytime. Save 10% with annual prepay.

Onboarding is capped to 10 businesses a month — book your slot now
The Diallux Guarantee

We take the risk — you take the bookings.

Diallux commits to a minimum number of booked appointments in your first month — agreed with you in writing before you pay a penny. If the dispatcher doesn't hit that number, you get a full refund. Every penny, no forms, no exit interview, no argument.
A target in writing
Your minimum booking number is agreed before you pay — so you know exactly what you're holding us to.
Bookings, not activity
We're measured on jobs that land in your diary — not calls answered, minutes used or hours logged.
Miss it and we pay
Short of the number by the end of month one and the refund is yours. The risk sits with us, where it belongs.
After the first month it stays month-to-month — cancel anytime, no exit fee. We only want to keep customers the dispatcher pays for.
Before you ask

The questions every contractor asks us

Q1Will it sound natural, or robotic?

Natural is the whole craft, and it's where we've put the years in. Our developers have spent them on AI prompting and voice behaviour, and the result is a receptionist that holds a genuinely fluid conversation — it listens, asks follow-up questions and answers back like someone who knows your trade, not a phone menu. And the honest bit: yes, people can often tell it's AI — if they ask, it says so. What we've found is that they don't mind, because it sorts their problem there and then: booked, confirmed and in your diary while you're still on the tools. Callers forgive a voice that sounds a little synthetic; they don't forgive a phone that rings out. Judge it yourself — the call playing at the top of this page is the product, not a voice-over.

Q2What if I want to take the calls myself?

You should — no software can replace the relationship you have with your customers. Diallux only covers the calls you can't get to, and you set the rules: after-hours only, overflow when you've rung out twice, or everything while you're mid-job — your call. It works around you, never instead of you, and the rules take minutes to change whenever you want.

Q3My regulars expect to speak to me.

Put them on your direct list and they'll never hear the AI — their calls come straight through to you. The honest question is what those regulars get today when you're up a ladder or elbow-deep in a cylinder: voicemail, and a promise to call back. With Diallux they're answered in seconds, booked in, and you get a text with everything that's been agreed. Most owners find their regulars prefer a confirmed slot now to a callback maybe tonight.

Q4What if it books something wrong?

Three things make it unlikely. It reads your real diary, so it can't book a slot that isn't free. It confirms every detail back to the caller before anything is saved. And every call is transcribed, so if a bad booking ever did slip through, you can see exactly what was said.

Q5How long does setup take?

About a week for most firms. You give us your website or price list, we build the dispatcher around your services, prices and patch, then we test-call it together until you'd happily let it answer your own mother's boiler. You keep your existing number — callers simply divert to Diallux when you don't pick up. Nothing to install, and nothing for your customers to learn.

Every call answered. Every job in the diary.

Try it for a month. If it doesn't deliver the bookings we agreed, you get a full refund — every penny. If it does, you keep every job it books, and you'll never lose work to a ringing phone again.

Book a free demo