Receptionists for Plumbers & Heating Engineers: Human, Virtual and AI Options Compared

When you’re installing a new boiler, talking to a customer, or half-way through doing a tightness test, you can’t pick up the phone. And by the time you call back, the job might have gone to someone else.

The work that pays you is the work that stops you answering the phone, and it’s impossible for one person to perfectly balance.

Getting someone to answer calls on your behalf solves this problem, but in 2026 you’ve got a few different answering services to choose from. Between human, virtual and AI receptionists, here’s what each one actually is, what it costs in the UK right now, and which suits a haeting & plumbing business your size.

What are the answering service options for a heating & plumbing business?

Gas engineers and plumbers have four realistic ways to handle calls they can’t take:

• Voicemail and ring back — free, built into your phone, but doesn’t help and relies on the customer waiting for you.
• A full-time human receptionist — usually full-time office staff, but for many sole traders is also a family member or partner.
• An outsourced (virtual) human service — a team elsewhere answers in your company name, takes details, and passes them to you.
• An AI receptionist — software answers the call, has a conversation with the customer, captures their details and the job, and can book it in on your behalf.

The four answering service options compared

Voicemail

Voicemail is free, but can cost you a job. Someone with a leak isn’t leaving a message and waiting… they’re going back to Google and calling the next name.

Pros: Free and quick to set up.

Cons: Poor customer experience, some people won’t wait, and it relies on you ringing everyone back.

Full-time human receptionist

Hiring full-time office staff is a great option for larger businesses drowning in admin work. They’ll answer phones, book in jobs, send invoices, track payments, and lots more. Read our full hiring guide.

Pros: Knows your business inside out, handles anything a customer needs, and takes on the rest of your admin too.

Cons: Not viable for a sole trader or smaller business that doesn’t have the revenue to cover another salary.

Virtual receptionist

An outsourced human service gives people a way to get in touch with your business without you constantly having to pick up the phone. They can be a cost-effective way and services can range from taking calls to booking in jobs for you.

Pros: A real person on the phone at a fraction of the cost, and you can scale it up and down with your workload.

Cons: They won’t know your work as well as you do.

AI receptionist

An AI receptionist is by far the cheapest and most flexible option for a plumber or gas engineer on the tools. It won’t match the customer service of speaking to a real human, but it also doesn’t try to. Think of it as a vastly improved voicemail that can also book typical jobs and redirect the more complex ones to your inbox.

Pros: Cheapest option by a distance, answers 24/7, never engaged, and books straight into your diary.

Cons: Some customers would rather speak to a person.

How do AI receptionists work?

Setting up an AI receptionist to answer heating & plumbing calls is incredibly easy. There are several options on the market with simplified setup processes. Gas Engineer Software’s AI receptionist is coming soon, and will work as an answering service for heating & plumbing businesses by connecting to your GES calendar to book in jobs and send you notes from calls.

Every call runs roughly the same way:

• It picks up straight away, in your business name, however busy you are.
• It asks for basic information and gets the address, the customer’s name and number, and how urgent it is.
• It checks your diary and offers real slots, then books the job in. (If connected to your job management software)
• It passes anything complex to you, such as an emergency, odd job, or price it shouldn’t be guessing at.
• It writes the lot up and sends you the details, usually with a transcript or summary of the call.

How much does an AI receptionist cost in the UK?

AI receptionists for trades businesses start around £45 to £50 a month, which for the amount of time it saves, is a very valid expense for small business owners.

There are several different options available on the market, so check the per-minute charges once you’re over your allowance, setup fees, and contract length. Most AI providers bill monthly, which is worth insisting on while you work out whether it suits you.

What to check before you sign up for anything

Five things worth knowing before you make your decision:

• How do emergencies reach me?
• Do jobs get booked in my diary, or do I just get an email?
• Can I get a demo call or recording?
• Does it quote prices for me?
• What happens out of hours?

Why answering the phone shouldn’t be the engineer’s job

Having to juggle work on the tools and answering the phone is working two very different jobs at the same time. Most of an engineer’s work requires full attention, and having to stop-start constantly or pick up the phone while at a property isn’t feasible in the long-term.

Whichever route you choose, delegating the call handling will go a long way in improving your customer service, allowing you to do better work faster, and reducing your stress.