Ask most tradespeople whether they use a mobile or landline for business and the answer is obvious to them: mobile. It goes where they go, it's always on them, and they've had the same number for years. What would a landline even add?
Quite a lot, it turns out — but not always for the reason people expect.
The callback problem nobody talks about
The standard argument for a local landline is about looking professional. A 020 or 0161 number looks more established than a personal mobile. Customers trust it more. That's true, and we'll get there. But there's a more practical issue that gets less attention.
When you miss a call and ring back, you're calling from your mobile — a number the customer has never seen. Depending on the source, between 60% and 77% of calls from unrecognised mobile numbers go unanswered. The customer has already moved on, or assumes it's spam.
You've got a real chance of capturing that lead if you call back quickly. But if you're ringing from a number they've never seen, the odds are worse than most people realise. A local landline number changes this — even on a callback, there's a better chance they pick up because the number looks familiar rather than suspicious.
What a landline actually does to trust
Research from BrightLocal and others consistently shows that a local area code on a business card, van livery, or Google Business profile increases the likelihood a customer will call you rather than skip to the next result. The commonly cited figure is that 75% of customers say a landline makes a business look more trustworthy than a mobile number.
That figure probably shifts as mobiles become more normalised, but the psychology is still real. A local landline signals permanence. It says: we've been here long enough to have a proper local number, we're not going to disappear after we take your money, we're a real business.
For a sole trader competing with established firms, that impression matters. The customer doesn't know whether you're a one-person operation or a team of five — but your phone number gives them signals either way.
75% of customers say a landline number makes a business look more trustworthy than a mobile. The psychology holds even when customers know that landlines are virtual.
The personal number problem
There's a more practical reason to separate your business calls from your personal mobile: you can never un-give someone your number.
Once a customer has your personal mobile, they have it permanently. They can call you on a Sunday evening to ask a question about a job you finished two years ago. They can text at 10pm when they think there's a problem. You can't choose when you're available for business without screening personal calls at the same time.
A separate business number lets you be available when you want to be available. Out of hours, your business number can go unanswered (or to voicemail) while your personal mobile is still on. When you retire or hand the business to someone else, the number goes with the business rather than with you personally.
The argument for keeping your mobile as-is
It's worth being fair to the other side. If you've built a business on your personal mobile number and every existing customer has it, switching is a real disruption. People call the number they have. A new landline doesn't automatically replace years of established contact.
If you're doing well on referrals and almost all your work comes from people who already know your number, the credibility angle of a landline matters less. The customers you'd be impressing are new customers, not established ones.
The strongest case for a mobile-only approach is simplicity. One number, always with you, no forwarding to manage, no second line to remember.
Both works best — and here's why
The answer to "landline or mobile?" is: both, but in a specific way. A local area code number that you advertise publicly — on your website, your van, Google, business cards — that forwards to your existing mobile. When someone calls your 020 or 0161 number, it rings exactly where you are.
You don't need a second handset. You don't need to be near a desk. Your personal number stays personal. Your business number is the one you advertise, and existing customers can still reach you on your mobile if they have it.
Add professional call answering to that setup and the gaps are covered: when you can pick up, you pick up. When you can't — because you're working — the call is handled professionally and you get the details by text within 60 seconds. That's the setup most established trades businesses use. It used to be expensive and complicated. Now it's not.
The First Contact gives UK tradespeople a local landline number from £10/month — calls forward to your mobile, and missed calls are answered professionally with details texted to you in 60 seconds. See how it works.