Last Updated on August 12, 2026
Plumbing leads look cheap. £10 here, £15 there, a boiler enquiry for £30. That is exactly why they are a trap. Roofers buying £55 leads at least stop to think. Plumbers click buy.
Full disclosure before anything else: Whito passes enquiries to listed businesses. We are in the leads business too. Which is why this piece is about the arithmetic, not the villainy.
The mistake: pricing the lead instead of the won job
The only number that matters is cost per won job: what you paid, divided by how many of those leads became paid work.
A shared plumbing lead is typically sold to three to six firms at once. Everyone rings the same customer. If you win one in five, a £12 lead really costs £60 per job won. Win one in ten, £120. On a £100 leak repair, the lead platform made more from the job than you did.
Now do the same sum on the jobs where leads are supposed to shine. A boiler lead at £30, shared with two competitors, won one time in five: £150 per won job on a £3,000 install. That can work. The same £30 lead won one in ten is £300, and suddenly your margin is quietly moving to the platform.
What plumbing leads actually cost in 2026
Membership models charge monthly whether you win or not: the biggest directory starts around £30 a month for a name-only listing, and realistic all-in spend for a firm actually receiving enquiries runs into the hundreds a month, with bigger jobs like boiler installs carrying per-lead fees on top. Pay-per-lead platforms charge from a few pounds for a tap washer up to £40 and more for install work. Google’s Local Services Ads sit anywhere from £20 to £100 per lead depending on your area’s competition.
None of those prices is the problem. The sharing is. Whatever you pay, you are usually one of three to six firms racing to the same phone number, and the race is won in minutes, not days. Our research post on what plumbing leads really cost has the full figures.
Why the trap holds
Bought leads are a treadmill with a rising incline. You pay per enquiry forever, the enquiry is shared, and the moment you stop paying, the phone stops. Nothing compounds. Meanwhile the things that do compound, reviews, a complete Google Business Profile, a verifiable listing, repeat boiler services, get starved because the lead budget ate the month.
Emergency and repair work punishes this hardest. Small jobs cannot carry a shared lead cost. The trades that make bought leads work are the ones selling £3,000 installs with disciplined five-minute response times and follow-up. If that is not your operation yet, leads are not your problem. Structure is.
The reframe: leads are a top-up, not a foundation
The order matters. First be findable and easy to trust: a claimed, checkable listing, a complete profile, visible Gas Safe number, steady reviews. Then convert what already comes in: answer fast, quote same day, follow up, turn every boiler install into next year’s service booking. Then, if you still have spare capacity, buy leads to fill the gaps, measured by cost per won job, cut without sentiment when the number stops working.
That is Start, Build, Scale applied to plumbers and heating engineers in one paragraph. Leads sit at the end of it, not the beginning.
The sharp takeaway
Never judge a lead by its price tag. Divide what you spend by the jobs you actually win, and compare that against what a review, a service reminder or a verified listing costs: nothing, and they compound. Buy leads to fill quiet weeks. The moment leads are the business model, the platform is the business and you are the subcontractor.
Whito lists plumbing firms free and passes enquiries at no charge. Paid options never change ranking. That is the model, stated plainly, so you can judge the advice against it. List your business free.
