The 10 Best Plumbers in Cardiff 2026

Ranked by real customer reviews, Gas Safe accreditation status and Companies House verification. Updated weekly from public sources.

How this ranking is calculated

Composite score from real, publicly-verifiable signals only:

  • Google Business Profile star rating (when 3+ reviews)
  • Google Business Profile review count (log-scaled)
  • Verification sources: Companies House number, Google Business listing, Checkatrade, TrustATrader, claimed website
  • Operator-claimed listing status

No paid placement. No accepted listings. No fabricated reviews. Source data refreshed weekly.

  1. Phixing Plumbing and HVAC Solutions is a plumber in Cardiff, rated 5/5 from 196 Google reviews. Registered with Companies House (no. 13044258) and currently active. Established Google Business Profile with 196+ customer

    5.0โ˜… (196 reviews)3 verification sources
    5.0โ˜…
    196 reviews

  2. SMC Plumbing and Heating is a plumber in Cardiff, rated 5/5 from 199 Google reviews. Established Google Business Profile with 199+ customer reviews.

    5.0โ˜… (199 reviews)3 verification sources
    5.0โ˜…
    199 reviews

  3. RM Plumbing & Electrical Ltd - Cardiff is a plumber in Cardiff, rated 5/5 from 78 Google reviews. Registered with Companies House (no. 07842110) and currently active. Established Google Business Profile with 78+ customer

    5.0โ˜… (78 reviews)3 verification sources
    5.0โ˜…
    78 reviews

  4. Nova Plumbers Ltd is a plumber in Cardiff, rated 4.8/5 from 35 Google reviews. Registered with Companies House (no. 16145148) and currently active. Verified Google Business Profile.

    4.8โ˜… (35 reviews)3 verification sources
    4.8โ˜…
    35 reviews

  5. DM Pritchard Plumbing and Heating is a plumber in Cardiff, rated 5/5 from 231 Google reviews. Established Google Business Profile with 231+ customer reviews.

    5.0โ˜… (231 reviews)
    5.0โ˜…
    231 reviews

  6. Rosoman Plumbing & Heating is a plumber in Cardiff, rated 5/5 from 93 Google reviews. Established Google Business Profile with 93+ customer reviews.

    5.0โ˜… (93 reviews)
    5.0โ˜…
    93 reviews

  7. G R C Plumbing & Heating Ltd is a plumber in Cardiff, rated 5/5 from 100 Google reviews. Established Google Business Profile with 100+ customer reviews.

    5.0โ˜… (100 reviews)
    5.0โ˜…
    100 reviews

  8. MPH PLUMBERS is a plumber in Cardiff, rated 4.8/5 from 156 Google reviews. Established Google Business Profile with 156+ customer reviews.

    4.8โ˜… (156 reviews)
    4.8โ˜…
    156 reviews

  9. Llandaff Heating is a plumber in Cardiff, rated 4.9/5 from 197 Google reviews. Established Google Business Profile with 197+ customer reviews.

    4.9โ˜… (197 reviews)
    4.9โ˜…
    197 reviews

  10. PHBLUE - Plumbing and Heating Services in Cardiff is a plumber in Cardiff, rated 5/5 from 82 Google reviews. Established Google Business Profile with 82+ customer reviews.

    5.0โ˜… (82 reviews)
    5.0โ˜…
    82 reviews

Want more options? See all plumbers in Cardiff โ†’