THE SHORT ANSWER
An exclusive, qualified heat pump lead in Belgium costs roughly EUR 90 to EUR 140 in 2026, with EUR 115 as the working average. At a close rate of one in 4 that is about EUR 460 per acquired customer, or 3.4 percent of a typical EUR 9,000 to EUR 18,000 project. Belgium sits at a multiplier of 1.00 against a Benelux baseline of 1.0, because Flanders and Wallonia behave like two different auctions: Dutch-language clicks are more expensive because installer density is higher there.
Heat pump lead prices in Belgium: the 2026 band
Everything below is priced for an exclusive lead, meaning one homeowner who requested a quote, fits your postcodes and job types, and is passed to you alone. A shared lead reaching four heat pump installers carries a lower sticker price and a higher cost per customer.
Price per exclusive lead: EUR 90 to EUR 140, average EUR 115
Typical project value: EUR 9,000 to EUR 18,000
Exclusive leads needed per customer: 3 to 5
Cost per acquired customer: around EUR 460
Acquisition cost as a share of the job: about 3.4 percent
These figures are a benchmark model, not a survey. They combine an industry base range observed across Western European home-improvement campaigns with a country multiplier for local auction pressure. Treat them as a band to negotiate against, not a quote.
What you really pay per acquired customer
Cost per lead in isolation tells you nothing. Divide it by your close rate.
At EUR 115 per lead and one sale per 4 leads, a new heat pump customer in Belgium costs about EUR 460. On a EUR 13,500 project that is 3.4 percent of revenue. The working rule across home-improvement trades is that a healthy acquisition cost sits between 4 and 9 percent of job value. Above 12 percent, either the lead quality or the follow-up is broken, and it is almost always the follow-up.
Now compare that to a shared lead. If you pay EUR 58 for a lead that four competitors also received, and your close rate falls to one in twelve, your cost per customer becomes roughly EUR 696. That is worse than the exclusive lead, and it burns three times as much of your sales week.
What a slow first call costs you in this market
Reach rate on a heat pump enquiry falls steeply with age: high inside five minutes, materially lower after thirty, and roughly halved by the following morning. Because the lead price is already paid, every unreachable lead transfers its cost onto the ones you do reach.
The arithmetic is unforgiving. If one lead in five goes unreachable purely through delay, your effective price per usable heat pump lead rises from EUR 115 to about EUR 144, and your cost per customer with it. No supplier negotiation available anywhere in this market moves the number that far, which is why response time is the first thing to fix and the cheapest.
Practically: one named person owns the first call attempt, the target is under five minutes during working hours, and the metric you report weekly is median time to first attempt rather than number of leads received.
Matching lead volume to the capacity you actually have
Volume is only useful up to the point your team can quote and deliver it. At 3 to 5 leads per customer, ten exclusive leads a month in this trade produce roughly 2 to 3 jobs, which at a typical EUR 13,500 project is somewhere around EUR 27,000 to EUR 40,500 of work landing in the diary.
Buy past that and the extra leads do not become extra jobs, they become slower callbacks on all of them. The pattern is consistent: businesses that raise volume before fixing quoting capacity see cost per acquired customer rise even though cost per lead is unchanged.
So set volume from installed capacity rather than from ambition, and raise it in steps you can staff. In Belgium that usually means one increase per quarter, timed ahead of the September to January peak rather than during it.
What separates a heat pump lead that closes from one that does not
Insulation level and radiator type, not budget. A poorly insulated house with small radiators needs a larger unit, a higher flow temperature and often new emitters, which turns a straightforward quote into a project the homeowner never budgeted for. Establishing both before the survey lets you either price honestly on the first visit or disqualify early, and disqualifying early is worth more per hour than any discount you can offer.
Why a more expensive lead is usually the cheaper one
The buyer behind these figures is a homeowner replacing a gas or oil boiler, and what moves them is boiler replacement deadlines and running-cost comparisons.
Filtering on current heating system, insulation level, radiator type, ownership and timeline removes 30 to 50 percent of raw form fills. The survivors cost more each and close far better. A EUR 140 lead you can actually service beats a EUR 54 lead you have to refuse, and the refused lead is not free: it costs a call, a diary slot and a small amount of your team's belief in the channel.
How Belgian homeowners buy
Three quotes is close to a cultural default here, and homeowners are comfortable saying so on the first call. That makes speed and clarity worth more than exclusivity alone: being the first of three to send an itemised written quote matters more than being the only one contacted. Word of mouth carries unusual weight, so a completed job in a street reliably produces further enquiries in that street.
Where the volume actually is
Antwerp, Ghent, Brussels and Liege carry most of the search volume and most of the competition, while close rates are often better in the surrounding municipalities where fewer installers bid. Buying by postcode rather than nationally is unusually valuable in a country this small, because a thirty-kilometre radius can cross a language border and double your effective competition.
Why heat pump demand front-loads into autumn
The buying season starts with the first cold week and effectively ends when installers run out of pre-Christmas slots. That compresses a year of decisions into roughly four months, and it means a lead arriving in October is worth materially more than the same lead in June even at an identical price. Buying through the summer trough to fill an autumn diary is the cheapest capacity planning available in this trade.
How to test a heat pump lead supplier in Belgium without risking a quarter
Buy a small, defined batch rather than signing a retainer, and decide in advance what success looks like. For this trade at these prices, a fair test is enough leads to expect two or three sales: at 3 to 5 leads per customer that means at least 15 leads, and anything smaller measures luck rather than the supplier.
Fix the postcodes and job types in writing before the first lead arrives, using Antwerp, Ghent, Brussels and Liege as your reference area.
Record time from lead creation to your first call attempt. If that number is above thirty minutes, you are measuring your own follow-up, not the leads.
Track cost per acquired customer against the EUR 460 benchmark on this page rather than cost per lead.
Agree the replacement rule for wrong area, wrong job type and unreachable numbers.
Confirm the price is exclusive of VAT and denominated in EUR.
Suppliers who are confident in their own quality accept every one of those conditions, because they know the arithmetic works in their favour.
What Flock Leads charges
For comparison against the modelled band, these are Flock Leads prices. You buy a volume of exclusive leads rather than a monthly service, which is why there is no retainer and no notice period.
Starter - 10 leads for EUR 750, which is EUR 75 per lead
Growth - 25 leads for EUR 1,750, which is EUR 70 per lead
Scale - 45 leads for EUR 2,925, which is EUR 65 per lead
Pro - 70 leads for EUR 4,340, which is EUR 62 per lead
Max - 90 leads for EUR 5,400, which is EUR 60 per lead
You set the postcodes and job types, so a Belgian campaign can be as narrow as one region or as wide as the whole country. Delivery is within minutes of the request, and unused volume rolls over rather than expiring.
Related answers
Frequently asked questions
How much does a heat pump lead cost in Belgium?
Roughly EUR 90 to EUR 140 for an exclusive, qualified lead in 2026, with EUR 115 as the working average. Shared leads sell for less, typically EUR 45 to EUR 70, but they reach three to five heat pump installers at the same time.
When are heat pump leads cheapest in Belgium?
In the June and July trough. Demand peaks in September to January, so off-peak leads run 20 to 40 percent below the figures above. They convert more slowly, so only buy them if you have the follow-up discipline to nurture into the peak.
Is it cheaper to run my own ads in Belgium?
Past roughly EUR 4,000 a month in media spend, usually yes, because the fixed costs of page, tracking and management start to spread. Below that, buying exclusive leads is almost always the better arithmetic, and it flexes with your capacity.
Can I buy heat pump leads for specific postcodes only?
Yes. Flock matches on postcode and job type, so you can run Antwerp, Ghent, Brussels and Liege and leave the rest of Belgium alone. Narrowing the area raises the price per lead slightly and raises the close rate a lot more.
Who is actually behind a heat pump enquiry in Belgium?
Typically a homeowner replacing a gas or oil boiler, motivated by boiler replacement deadlines and running-cost comparisons. Matching your first call to that motive rather than to your price list is what separates a 20 percent close rate from a 8 percent one.
Does a cheaper heat pump lead in Belgium mean better economics?
Not on its own. What matters is cost per acquired customer against job value. At EUR 115 per lead and a typical EUR 13,500 project, acquisition runs at about 3.4 percent of revenue, and that percentage is the number to compare across markets.
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