Every solar installer we talk to asks the same question in different words: which channel actually brings in jobs, and which one just burns the marketing budget? Solar Weekly pulled together installer-reported cost-per-lead (CPL) and conversion data across the channels UK solar and battery companies are actually spending on in 2026, and the pattern is consistent enough to act on.
Why this matters more in 2026 than it did in 2023
The installer landscape has changed shape since the ECO4/SEG boom years. MCS certified 257,397 installations in 2025 — up 32% on 2024 — which sounds like a rising tide lifting every boat. It isn’t. Growth has concentrated in a smaller number of installers who’ve worked out how to generate their own leads rather than buy them from aggregators, while the installers still paying £40-£80 a lead to a shared-lead broker are competing against four other quotes on the same job and watching margins evaporate. The 0% VAT window on residential solar and battery storage (in place in Great Britain until 31 March 2027) has kept demand steady, but it hasn’t fixed anyone’s marketing efficiency — that’s still down to channel choice.
Cost per lead by channel: what installers are actually reporting
Numbers below are ranges drawn from installer and agency-reported figures across the SEO Dons client base and broader trade commentary — treat them as directional, not a national census, since regional competition and search volume swing CPL significantly.
| Channel | Typical CPL | Lead quality | Time to first result |
|---|---|---|---|
| Shared-lead brokers (aggregators) | £25-£80 | Low-medium (shared with 3-5 competitors) | Immediate |
| Paid search (Google Ads) | £35-£90 | Medium-high (high intent) | Immediate, but costly to optimise |
| Meta/Facebook ads | £15-£45 | Low-medium (interruption-based) | Fast, high volume, weak intent |
| Local SEO / Google Business Profile | £5-£20 (amortised) | High (local, high intent) | 3-6 months to build, then compounds |
| Organic content/SEO (national+local site) | £3-£15 (amortised) | High | 6-12 months, then near-zero marginal cost |
| Referral/reviews | Near £0 direct spend | Highest | Ongoing, needs a trigger (review ask, review the) |
The two channels that actually get cheaper over time — local SEO and organic content — are also the two that most installers under-invest in, because the payback isn’t immediate and agencies find it easier to sell a paid-media retainer with a dashboard than a 6-month content build with a delayed payoff.
Why local SEO wins the CPL argument
The maths is simple once you separate one-off cost from ongoing cost. A shared-lead broker charges per lead, forever — there’s no point at which the cost per lead drops, because you’re renting attention. A ranking page costs money to build once (or a modest monthly retainer to maintain and expand), and then continues generating enquiries at close to zero marginal cost for as long as it holds position. Over 18-24 months the blended CPL on a well-executed local SEO programme routinely comes in below £20, versus £40-£80 sustained on brokered leads.
There’s a second, less-discussed advantage: conversion rate. A homeowner who searches “[installer name] reviews” or “solar panels [town]” and clicks an organic result has already self-selected — they’re closer to a decision than someone who filled in a broker’s generic comparison form and is now waiting for five different companies to call them. Installers we’ve worked with report organic/local-SEO leads converting at 2-3x the rate of shared-broker leads, purely because the buying intent is sharper and the installer isn’t racing four competitors to the phone.
This is exactly the pattern we’ve seen play out on client sites in the network. Doncaster-based ElectriFusion Solutions built its enquiry volume almost entirely on town-by-town local content rather than paid leads, and the same approach has worked for Ecoaim in Livingston, whose Central Scotland footprint gets almost no useful coverage from national aggregators simply because most lead-gen platforms are London/South-East weighted. Greenlinc Renewables in Lincolnshire and FLD Electrical in Swansea show the same thing in two more underserved regions — the less lead-broker competition exists locally, the bigger the CPL gap in favour of owned search visibility.
Why paid search still has a role — just not the lead role
Paid search isn’t obsolete, but its job in 2026 should be demand-capture, not demand-generation. If someone is actively searching “solar panels [postcode] cost” or “battery storage installer near me”, a well-targeted ad can put you in front of them alongside the organic results — useful for installers in dense, high-competition markets where organic ranking will take longer to establish. Premier Electrical Renewables runs a blended model like this: organic content carries the bulk of enquiry volume, with paid search topping up coverage in postcodes where the organic pages haven’t yet reached page one. The mistake we see repeatedly is installers running paid search as their only channel, which means CPL never drops — every lead this month costs roughly what it cost last year, with no compounding asset being built underneath it.
Meta ads sit in a similar bracket: cheap per click, weak on buying intent, genuinely useful for retargeting people who’ve already visited your site or filled in a calculator, and poor as a standalone lead engine for a considered £6,000-£17,000 purchase.
What “good” local SEO actually looks like for an installer
It isn’t just a Google Business Profile with five-star reviews (though that’s table stakes — MCS certification, which is required for Smart Export Guarantee eligibility anyway, should be visible and verifiable on the profile and the site). The installers converting best on organic traffic share a few structural features:
- Genuine town/borough-level pages, not thin duplicates — real local detail (typical roof types, local grid constraints, nearby completed jobs), not a template with the town name swapped in.
- A working quote form as the single conversion point, not a phone number buried in a PDF — YEERS in Yorkshire and Hazell Electrical in West Kent both route every CTA to one form rather than splitting attention across email/phone/contact-page.
- Transparent, defensible cost content — installers who publish realistic price ranges (a 4kW system at roughly £6,000-£8,000 installed, a 10kW system at £13,000-£17,000) earn trust and rank better on cost-intent queries than installers who hide pricing behind a “request a quote” wall. The Cost of Solar’s UK installed-price breakdown and battery storage cost guide are useful reference points if you’re deciding what your own pricing page should show.
- A payback-period narrative that doesn’t rely on stale grant figures — plenty of installer sites still quote grant schemes that no longer apply nationally (there is no universal home-solar grant in England; support is means-tested via ECO4/Warm Homes, and the Boiler Upgrade Scheme’s £7,500 is for heat pumps, not solar PV). Getting this wrong is a fast way to lose trust with a reader who’s done five minutes of research.
Commercial leads follow a different — but related — pattern
For installers doing commercial and industrial work, the channel economics shift again: procurement cycles are longer, deal sizes are larger, and buyers research far more before ever filling in a form. Sector-specific hub content converts disproportionately well here because commercial buyers search by building type and finance model, not by “solar installer near me”. EC Eco Energy in Essex has leaned into this with commercial-specific content rather than competing on residential terms alone, and the broader EMD network backs this up — Commercial Solar Panels Installation and vertical hubs like solar for warehouses and solar for care homes consistently show buyers arriving via long, specific searches (“solar panels for [building type] cost”, “[sector] solar grants”) rather than generic terms. If your installer business does any C&I work, a commercial finance page — see Commercial Solar Finance for the kind of PPA/loan/asset-finance breakdown buyers expect — will out-convert a residential-only site every time a business enquiry lands on it.
The practical takeaway on budget allocation
If you’re an installer setting a 2026 marketing budget, the channel mix that keeps CPL falling over time rather than staying flat looks roughly like this: local SEO and content as the compounding foundation (accept the 3-6 month lag), paid search as a targeted top-up in your most competitive postcodes, Meta for retargeting rather than cold acquisition, and shared-lead brokers used sparingly if at all — mainly to fill capacity gaps, not as a growth strategy. Review generation should run continuously in the background regardless of channel, since it’s the only lever that improves conversion on every other channel simultaneously. For a market-wide look at where UK installer demand is actually concentrated this year, Solar Weekly’s UK solar industry 2026 overview has the wider trade data behind these numbers.
The installers pulling ahead in 2026 aren’t necessarily spending more — they’re spending on the channel that gets cheaper the longer they run it.