Free tools are only free until you calculate what they cost you.
Google Voice is the default "business number" recommendation for solo tradies just getting started. It's fine for that. But the moment you're running real volume — more than a handful of calls a week — it starts working against you in ways that don't show up on any invoice.
Here are the three limits that matter.
Limit 1: It Can't Handle Two Calls at Once
Google Voice gives you one line.
If you're on a call with a supplier and a new customer rings, they hit voicemail. Not a hold queue. Not a callback option. Voicemail.
In practice, roughly 80% of callers who hit voicemail on a first contact don't leave a message — they call the next number on Google. That's not a missed call. That's a missed job. For a plumber charging $150/hr on a basic service call, one dropped lead per week is $7,800 a year walking out the door. And that assumes you only miss one.
You're not losing it to a bad review or a slow response time. You're losing it to a busy signal dressed up as a voicemail box.
Limit 2: The Spam Filter You Didn't Set Up Is Eating Your Calls
Google runs automated spam detection across Voice accounts.
The problem is it flags aggressively. Numbers calling from job-bidding platforms, referral services, even repeat customers calling from their work phones — all candidates for silent rejection. You never see a missed call notification. The customer never hears a ring. It just dies.
You won't know this is happening unless you specifically dig into your call logs and cross-reference against texts or emails from people saying they "couldn't get through." Most tradies don't do that audit. They just assume it's a slow week.
The real number is: this affects more accounts than Google publicly acknowledges, and there's no toggle to fully disable it on the free tier.
Limit 3: No Business-Hours Logic, No Screening, No Filter
Google Voice rings you. That's it.
It doesn't know you're on a roof at 2pm. It doesn't know you close at 6pm. It doesn't filter out the tire-kickers asking for a "quick quote" at 7am before you've touched your first coffee. Every call hits you the same way, which means you're either answering everything and losing focus on the job in front of you, or you're ignoring calls and losing leads.
There's no middle path inside Google Voice.
Real businesses need a layer between the raw incoming call and you — something that qualifies the caller, captures their details if you're unavailable, and tells you whether this is a $4,000 job or someone who wants you to "just take a quick look."
Without that layer, you're spending time and attention you can't bill for.
What You Should Actually Do
This isn't about ditching Google Voice immediately if it's working for you right now.
It's about knowing when you've outgrown it. The signal is simple: if you're getting more than 15-20 inbound calls a week, the single line, spam filter, and no-screening setup is costing you more than any paid alternative would.
The move most busy tradies make is keeping Google Voice as a secondary number for outbound callbacks while putting a proper call-handling system — something like VettedCalls — on the number they advertise. The advertised number becomes the front door. Google Voice stays in the back pocket.
That way you stop leaking leads you already paid to generate through ads, SEO, or word-of-mouth referrals.
Every dollar you spent getting your phone to ring is wasted if the phone setup itself is the bottleneck.
This week's move
Pull up your Google Voice call log right now and count how many calls in the last 30 days went to voicemail — that number, multiplied by your average job value, is the floor of what this setup is costing you.
Forward this
If another tradie you know is still losing leads to voicemail, send them VettedCalls.