Why solar installers shouldn't trust generic marketing agencies

Most marketing agencies are generalists. On Monday they write ads for a dental practice, on Tuesday a gym, on Wednesday your solar business. The retainer is the same for each client. The results are not.

Solar is one of the most expensive, most considered purchases a homeowner ever makes. The search behaviour, the objections, the seasonality and the qualification process look nothing like a £40 gym membership. An agency that treats them the same will spend your budget learning that lesson.

What generic agencies get wrong about solar

1. They bid on the wrong searches

"Solar panels" is not a buying keyword. It catches students writing essays, tenants who can't install anything, and DIY hobbyists comparing panel specs. A solar-only campaign is built around installer intent: "solar panel installers near me", "solar panel installation cost", "MCS certified installer [town]". Without a deep negative keyword list - ours runs to 224 entries - a huge share of a generic agency's spend leaks into searches that can never become installations.

2. They measure clicks, not calls

A homeowner ready to spend £8,000 or more rarely fills in a form. They pick up the phone. If your agency reports click-through rates and "engagement" instead of tracked phone calls, they are optimising for the wrong event entirely. We wrote a full guide on tracking every call from your Google Ads campaigns because this single fix changes how a campaign gets optimised.

3. They don't know what MCS means

If your agency doesn't know that MCS certification is the gateway to Local Services Ads for solar, to consumer trust, and to most funding schemes, they can't use your biggest structural advantage. Accreditation is a ranking asset. Generic agencies leave it off the ad copy because they don't know it matters.

4. They work for your competitors

Generalist agencies happily sign three home-improvement companies in the same city. Your budget bids against your neighbour's budget, the cost-per-click rises, and the agency collects two retainers for the privilege. Ask any agency directly: "Will you work with another installer in my area?" The pause tells you everything.

5. The retainer protects them, not you

A fixed monthly retainer gets paid whether your phone rings or not. That's not an incentive structure - it's insurance for the agency. It is why we built Panel Reach on a pay-per-call model: £30 per qualified inbound call, and nothing until the phone actually rings.

Questions to ask before you sign anything

• How many solar installers have you worked with, specifically?
• Will you guarantee area exclusivity in writing?
• What exactly do I pay for - impressions, clicks, leads or calls?
• Can I see the search terms my budget was spent on, every month?
• What happens if the campaign produces nothing this month?

A specialist will answer all five without flinching. A generalist will talk about brand awareness. We've expanded these five questions into a full guide to choosing a solar marketing agency, including the four pricing models compared side by side.

The seasonality blind spot

A generalist agency runs a solar campaign on the same steady, month-to-month budget it uses for a gym or a dentist. Solar doesn't behave like that. Enquiries swing hard with the seasons - high through spring and summer, thin in the depths of winter - and agencies that don't know this make two opposite mistakes: they overspend into the winter lull chasing volume that isn't there, or they go quiet in summer exactly when demand peaks. Someone who lives in solar plans the budget around the curve, leaning in when intent is high and protecting your money when it isn't.

Solar creative isn't home-improvement creative

The words that sell a new kitchen don't sell a solar installation. A homeowner spending five figures on their roof is weighing payback periods, MCS accreditation, battery storage, warranties and whether the company will still exist in ten years. Ad copy and landing pages that speak to those specific worries convert; generic "get a free quote today" creative bounces. This is the quiet advantage of a specialist: the objections are already known, so the messaging answers them before the homeowner has to ask. It's the thinking that goes into every page and campaign we build for installers. None of it is exotic knowledge - it's just knowledge you only get from doing solar repeatedly, instead of fitting it in between a gym and a restaurant.

The test is simple: ask a prospective agency to name three things about selling solar specifically that differ from selling any other home improvement. A specialist will have ready answers - the seasonality, the accreditation advantage, the length of the buying decision. A generalist will reach for generalities. The gap in that answer is the gap that will show up in your results a few months later.

If you'd rather skip the audition process entirely, book a free 20-minute call and we'll walk you through how a solar-only campaign is built.