The 10 Best Plumbers in Cardiff 2026
Ranked by real customer reviews, listing activity 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.
Nova Plumbers Ltd is a Cardiff-based plumbing company offering a broad range of domestic and commercial plumbing and heating services. The company carries out 24/7 emergency callouts for burst pipes, leaks and other urge
4.8★ (39 reviews)3 verification sourcesoperator-verified listing4.8★39 reviewsRM 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
5.0★ (78 reviews)3 verification sources5.0★78 reviewsCheap plumbing company is a plumber in Cardiff, rated 5/5 from 15 Google reviews. Verified Google Business Profile.
5.0★ (15 reviews)operator-verified listing5.0★15 reviewsG 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.
5.0★ (100 reviews)5.0★100 reviewsRosoman Plumbing & Heating is a plumber in Cardiff, rated 5/5 from 93 Google reviews. Established Google Business Profile with 93+ customer reviews.
5.0★ (93 reviews)5.0★93 reviewsMPH PLUMBERS is a plumber in Cardiff, rated 4.8/5 from 156 Google reviews. Established Google Business Profile with 156+ customer reviews.
4.8★ (156 reviews)4.8★156 reviewsPHBLUE - 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.
5.0★ (82 reviews)5.0★82 reviewsCosywarm Heating & Plumbing is a plumber in Cardiff, rated 4.8/5 from 23 Google reviews. Verified Google Business Profile.
4.8★ (23 reviews)4.8★23 reviewsThe Cardiff Plumbers is a plumber in Cardiff, rated 4.8/5 from 20 Google reviews. Verified Google Business Profile.
4.8★ (20 reviews)4.8★20 reviewsCardiff And Caerphilly Plumbers is a plumber in Cardiff, rated 5/5 from 21 Google reviews. Verified Google Business Profile.
5.0★ (21 reviews)5.0★21 reviews
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