Most South African solar installers have tried the same two marketing levers at some point: paying for generic lead-gen enquiries, and running their own Google Ads campaigns. Both can work — and both come with a cost structure that's easy to underestimate until you actually track cost-per-won-job, not cost-per-lead.
The Problem With Generic Lead Gen
Generic solar lead-gen platforms typically sell the same homeowner enquiry to three, four, or five installers simultaneously. The homeowner fills in one form and then fields calls from every installer who bought that lead. For the installer, this means:
- Competing purely on speed-to-call-back and price, since the homeowner has no other basis to differentiate you yet
- Paying for the lead regardless of whether you win the job
- No control over how "ready to buy" the enquiry actually is — some are early-stage research, not people about to sign
None of this makes generic lead-gen worthless. It makes it a volume play with a cost structure that rewards whoever answers fastest and quotes lowest — not necessarily whoever does the best work.
What Changes With a Vetted Directory Listing
A vetted directory works differently on two fronts. First, the homeowner is doing their own research and comparing installers directly on your profile — reviews, service area, certifications, and completed work — before they ever reach out, which means the enquiries that do come through tend to be further along in their decision. Second, being part of a vetted list (rather than an open, pay-to-list directory) does some of your credibility work for you: the vetting itself is a trust signal the homeowner sees before your sales team says a word.
This is the model behind ADEO, our sister directory of vetted South African solar installers — and it's worth understanding as a category, whichever specific directory or combination of channels you end up using.
Comparing the Real Cost Per Won Job
The number that actually matters isn't cost-per-lead, it's cost-per-won-job. To compare fairly, track:
- Enquiry-to-quote rate — what share of enquiries actually convert to a site visit or formal quote
- Quote-to-win rate — what share of those quotes you win, which tends to be higher when the homeowner arrived already trusting your profile
- Total cost per channel, divided by jobs won, not leads received
Installers who run this comparison properly often find that a smaller number of well-qualified directory enquiries outperforms a larger number of shared, unqualified lead-gen contacts — even when the directory listing costs more per enquiry on paper.
It's Not Either/Or
The strongest installer marketing mixes tend to combine a strong presence on a vetted directory (for warm, comparison-shopping homeowners) with your own website and reviews (for people who search your business name directly after seeing your van, a referral, or a completed job nearby). Neither replaces the other — but if you're only doing generic paid lead-gen and nothing else, a directory listing is usually the highest-leverage next channel to add.
Where This Fits With SolarTally
SolarTally's solar calculator sends interested homeowners and businesses toward ADEO once they've got a system size and budget in mind — which means the traffic reaching ADEO has already self-qualified by running real numbers before comparing installers. If you're an installer evaluating where to be listed, that's worth understanding as part of the funnel, not just the listing itself.
Frequently Asked Questions
How is a vetted directory different from a standard business directory? Vetting means listed businesses are checked against criteria — registration, reviews, completed work — before appearing, rather than any business being able to pay for a listing regardless of track record.
Should a small installer bother with directory listings at all? Often more than larger competitors, since a directory listing gives a smaller company visibility and credibility signals it would otherwise take years of its own marketing spend to build.
What's the fastest way to check if a lead channel is actually working? Track win rate and cost per won job for at least a full quarter per channel — a single month is usually too short to see past normal variance in enquiry quality.
Writes about solar and renewable energy for South African homes and businesses at SolarTally, and cross-checks every guide against current tariffs and installer standards.
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