The 10 Best Builders in Swansea 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. Herms Construction is a builder in Swansea, rated 5/5 from 12 Google reviews. Registered with Companies House (no. 14432413) and currently active. Verified Google Business Profile.

    5.0★ (12 reviews)3 public profile linksclaimed by its owner
    5.0★
    12 Google reviews

  2. Bambridge Loft Conversions is a builder in Swansea, rated 4.9/5 from 40 Google reviews. Verified Google Business Profile.

    4.9★ (40 reviews)3 public profile links
    4.9★
    40 Google reviews

  3. JM Building Contractors is a builder in Swansea, rated 4.8/5 from 20 Google reviews. Registered with Companies House (no. 15827765) and currently active. Verified Google Business Profile.

    4.8★ (20 reviews)3 public profile links
    4.8★
    20 Google reviews

  4. No Limit Construction ltd is a builder in Swansea, rated 5/5 from 14 Google reviews. Registered with Companies House (no. 14961657) and currently active. Verified Google Business Profile.

    5.0★ (14 reviews)3 public profile links
    5.0★
    14 Google reviews

  5. Bardic Construction Limited is a builder in Swansea, rated 5/5 from 16 Google reviews. Registered with Companies House (no. 11891815) and currently active. Verified Google Business Profile.

    5.0★ (16 reviews)3 public profile links
    5.0★
    16 Google reviews

  6. Atrium Construction is a builder in Swansea, rated 5/5 from 9 Google reviews. Registered with Companies House (no. 14111063) and currently active.

    5.0★ (9 reviews)3 public profile links
    5.0★
    9 Google reviews

  7. J Lynch Building Ltd is an established Swansea-based building contractor specialising in high-quality house extensions, full property renovations, bespoke new builds and structural alterations. Our experienced team mana

    5.0★ (7 reviews)claimed by its owner
    5.0★
    7 Google reviews

  8. K&R Construction Ltd is a builder in Swansea, rated 4.6/5 from 22 Google reviews. Registered with Companies House (no. 10568809) and currently active. Verified Google Business Profile.

    4.6★ (22 reviews)3 public profile links
    4.6★
    22 Google reviews

  9. Andrew Scott Ltd - Head Office is a builder in Swansea, rated 4.6/5 from 17 Google reviews. Registered with Companies House (no. 00406516) and currently active. Verified Google Business Profile.

    4.6★ (17 reviews)3 public profile links
    4.6★
    17 Google reviews

  10. Premier Forecourts and Construction is a builder in Swansea, rated 4.7/5 from 12 Google reviews. Registered with Companies House (no. 03356326) and currently active. Verified Google Business Profile.

    4.7★ (12 reviews)3 public profile links
    4.7★
    12 Google reviews

Want more options? See all builders in Swansea →