Getting a quote for solar panels is a bit like setting the price for a mystery box—you’ll see a number, but what’s inside depends on several factors. Your postcode isn’t just an address; it’s a big clue to local daylight hours, installer travel time, and even council quirks. Sunny stretches in the south might snag you lower prices compared to damp rooftops further north.
Roof size and shape come next. A big, clear, pitched roof is the solar installer’s dream, making labour straightforward and panel placement a breeze. Got a flat roof, odd angles, or lots of little nooks? Brace for extra costs—installers may need special brackets or more hours on the job.
Material matters, too. Slate tiles, for example, can be fussy and fragile, demanding extra TLC (and cost) compared to standard concrete tiles. Age plays a role, as well. A tired old roof may need fixes or reinforcements before anyone starts talking about solar.
Shading is another silent culprit. Overhanging trees, looming chimneys, or that extra-tall house next door can dim your panel’s output. Most quotes factor in expected efficiency drops, meaning more panels might be suggested to compensate, nudging your total higher.
Energy usage tilts the scales as well. The more power you burn, the larger the system you’ll be quoted. Installers look at your actual electricity bill, not a textbook average—a family running two tumble dryers and a fish tank will be sized up differently from a frugal solo dweller.
Installer reputation isn’t just nice for peace of mind—it eats into the quote, too. Seasoned local firms might charge a little more but throw in longer warranties or pro-level aftercare. Newcomers sometimes undercut, but beware—lower up-front costs can mean skipping corners.
Extras add up: smart meters, battery systems, speedy installation, monitoring apps…what starts as “just panels” can quickly blossom if you want the full solar tech package.
Same houses, wildly different quotes. That’s the mystery box charm. Take time to read the breakdown and ask questions so what you’re paying matches what you really need—no surprises inside when the final invoice lands.