The 10 Best Solar Panel Installers in Cardiff 2026

Ranked by real customer reviews, listing activity and Companies House registration, from public sources.

How this ranking is calculated

Composite score from public signals:

  • Google Business Profile star rating (when 3+ reviews)
  • Google Business Profile review count (log-scaled)
  • How many public profile links the listing carries: Companies House number, Google Business Profile, other directory profiles the business has supplied, its own website
  • Whether the listing has been claimed by its owner

No business can pay to be listed, and no reviews are fabricated. Placement is influenced by an optional paid Premium subscription, which puts a business ahead of equally-scored rivals here. Premium businesses carry a Premium badge on their own profile page and in our directory listings, but this list does not mark them.

  1. Green Energy Solar is a solar installer in Cardiff, rated 4.9/5 from 221 Google reviews. Established Google Business Profile with 221+ customer reviews.

    4.9★ (221 reviews)3 public profile links
    4.9★
    221 Google reviews
  2. SolarTech is a solar installer in Cardiff, rated 5/5 from 13 Google reviews. Verified Google Business Profile.

    5.0★ (13 reviews)3 public profile links
    5.0★
    13 Google reviews
  3. Urban Solar Limited is a solar installer in Cardiff, rated 5/5 from 5 Google reviews. Registered with Companies House (no. 07549222) and currently active.

    5.0★ (5 reviews)3 public profile links
    5.0★
    5 Google reviews
  4. SolarCentric Renewables Ltd is a solar installer in Cardiff, Wales. Registered with Companies House (no. 12425049) and currently active.

    3 public profile links
  5. WEG Solar is a solar installer in Cardiff, Wales. Registered with Companies House (no. 15896202) and currently active.

    3 public profile links
  6. Companies House registered
  7. Companies House registered
  8. Companies House registered
  9. Companies House registered
  10. Companies House registered

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