For UK heating, plumbing, heat pump, solar & battery installers
Never miss a job enquiry again.
You can't answer the phone from a loft or under a boiler, and most callers won't leave a voicemail. They just ring the next firm. InstallerLine answers for you. It takes the details, pencils the survey into your diary for you to confirm with one tap, and texts you a summary before you've put your tools down.
- Keep your own number
- We set it all up for you
- First month free for our first 10 clients · then monthly rolling
How it works
Divert your missed calls
Turn on "divert when busy or unanswered" on your mobile or landline. It takes two minutes, and we send you the steps for your network.
We build your receptionist
We set up your services, area, hours, FAQs and diary, and test it before it goes live. You approve exactly what it's allowed to say.
Every enquiry, captured
After each call you get an email and a text with the caller's name, number, postcode, job and urgency. Anyone who rings off gets a text back.
What the AI does, and what it doesn't
✅ It will
- Answer in your business name, 24/7, in plain British English
- Tell callers it's an AI assistant and that the call is recorded
- Take name, phone, postcode, address and job details, and read them back
- Pencil boiler services and heat pump, solar and battery surveys into your diary, within your booking rules, for you to confirm with one tap
- Tell callers the time is provisional until you text to confirm, and free the slot if you don't
- Flag no-heat calls from elderly or vulnerable households as urgent
- Answer FAQs you've approved: hours, area, Gas Safe, MCS, grants
- Politely turn away sales calls
- Text back callers who hang up
❌ It won't
- Pretend to be a person
- Diagnose faults or give advice on gas work
- Quote prices you haven't approved
- Promise a firm time, price or engineer, or take card payments
- Book gas leaks or CO alarms in as normal jobs
Simple monthly pricing
Monthly rolling. Cancel with 30 days' notice. Prices exclude VAT. Founding clients: first month free, no setup fee, price locked for 12 months.
Text-Back
£39/month
- 60 AI call minutes
- AI takes a message and texts you
- Missed-call text-back
- Gas/CO safety hand-off
When minutes run out, missed callers still get a text-back. No extra charges.
Receptionist
£89/month
- 200 AI call minutes
- Pencils surveys and services into your diary for you to confirm with one tap
- Email and SMS summary of every call
- Your FAQs and approved prices
- Monthly call report
Extra minutes 12p, capped at £25 a month.
Busy Firm
£149/month
- 500 AI call minutes
- Everything in Receptionist
- Live transfer to you or the office during set hours
- Up to 2 numbers or branches
Extra minutes 12p, capped at £25 a month.
One-off setup £99, waived for our 10 founding clients and on 12-month plans.
Founding offer: first month free
For our first 10 clients only.
- Your first month is free. It starts when your number goes live, not when you sign up.
- You get your chosen plan's normal features and minutes, with no extra-minute charges in the free month
- Card or Direct Debit set up when you sign up. Nothing is charged until the free month ends: your first payment is on day 31.
- We remind you 7 days before. Cancel any time before your first payment and you pay nothing.
- No £99 setup fee, and your monthly price is locked for 12 months
Business customers only. Full details in our terms.
Hear a demo
Our demo line answers for "Borders Heating Ltd", a made-up installer. Ring it and pretend your boiler's packed in, ask for a heat pump survey, or say you can smell gas.
📞 Call the demo line
Demo line launching shortly
Standard UK call rates apply. Calls to the demo line are recorded and transcribed so we can improve the service. No real engineer will be sent.
▶️ Or listen to a recorded call
A recorded example call (a boiler breakdown, flagged as urgent for a call-back) is coming soon.
Questions
Do I need to change my phone number?
No. You keep your number and divert calls you don't answer (or all calls, if you prefer) to your InstallerLine number. Your phone provider may charge for diverted calls, depending on your plan.
Will callers know it's an AI?
Yes. It says so at the start of every call, and it tells callers the call is recorded. We think honesty builds trust, and it's the right thing to do under UK data protection law.
What happens if someone smells gas?
The AI stops and gives clear safety instructions: get out, don't use switches or flames, call the National Gas Emergency Service on 0800 111 999 (999 if anyone's in danger). It does not book an engineer, and it sends you a safety alert.
Can it book into my diary?
Yes, on Receptionist and Busy Firm, but nothing is booked without your OK. We connect your Google or Outlook calendar and you set the rules: working hours, travel time between jobs, maximum surveys a day, minimum notice and how far ahead, postcodes to exclude, and which jobs can be booked. Each booking goes in marked PROVISIONAL and you get a text: tap to confirm or reply with another time. Callers are told the time is pencilled in. If you haven't confirmed within 24 hours (or 2 hours before the slot, if sooner), the caller gets a polite text saying you'll ring to arrange a time, and the slot is freed. Repairs and breakdowns are always call-backs.
Can I stop it quoting prices?
By default it never quotes prices. You can approve specific statements, such as "annual boiler service from £X", if you want it to.
What if it gets something wrong?
Every summary includes the recording and transcript, so you can check. Tell us and we'll fix the script, usually the same day.
Who handles my customers' data?
You stay in control of your callers' data, and we process it on your behalf under a Data Processing Agreement. Recordings are kept for 30 days by default. We give you wording to add to your own privacy notice.
How does the founding offer work?
It's for our first 10 clients. You set up a card or Direct Debit when you sign up, but nothing is taken during your first month, which starts when your number goes live. Your first payment is on day 31, and we email you 7 days before. Cancel by email any time before then and you pay nothing. Founders also get the £99 setup fee waived and their monthly price locked for 12 months.
Why do you take card details before the free month?
So your service carries straight on after the free month without a gap or a new sign-up. Nothing is charged before day 31, and cancelling before then costs nothing.
Is there a contract?
No long contract. After your free month it's monthly rolling, and you can cancel with 30 days' notice. The 12-month price lock is a promise from us, not a commitment from you.
Do I need a limited company?
No. Sole traders, partnerships and limited companies can all use InstallerLine.
Claim a founding spot or ask a question
Fill this in and it opens an email to us. Or email hello@installerline.co.uk.