Ranked by Google ratings — updated 15 November 2026
As of 15 November 2026, LocallyIrish.ie ranks 2 plumbing & heating in Letterkenny, Co. Donegal by customer rating. The top-rated is Mallon plumbing Ltd, with 4.9 stars from 14 Google ratings. SMM Plumbing and Heating follows with 4.8 from 12 Google ratings.
Each business is scored on its average rating weighted by how many ratings it has, so a handful of perfect scores cannot outrank hundreds of near-perfect ones. Reviews left on LocallyIrish.ie and the business's Google rating are counted together; the rating shown on each entry is labelled with its source. A Google rating needs at least 5 ratings to count. Businesses without enough ratings are listed separately, unranked. Paid listings cannot buy a higher position. The list refreshes hourly.
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