Best Drainage & Septic Tanks in Co. Down
Ranked by Google ratings — updated 25 October 2026
As of 25 October 2026, LocallyIrish.ie ranks 4 drainage & septic tanks in Co. Down by customer rating. The top-rated is LS Drains, with 5.0 stars from 35 Google ratings. Drainaway Environmental Services follows with 5.0 from 19 Google ratings.
How we rank
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.
LS Drains
Gold · 2026 Top Rated
Drainaway Environmental Services
Silver · 2026 Top Rated
Down Environmental
Bronze · 2026 Top RatedRat Alert - Rat & Drainage Solutions
Also in Co. Down — not enough ratings to rank yet
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Best drainage & septic tanks in Down — FAQs
What is the best drainage & septic tanks in Down?
LS Drains is currently the top-rated drainage & septic tanks in Co. Down, with 5.0 stars from 35 Google ratings. See the full ranked list above.
How are the best drainage & septic tanks in Down ranked?
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.
How can my drainage & septic tanks business rank higher in Down?
Encourage happy customers to leave a review on your LocallyIrish.ie listing. More high-star reviews move you up the "Best of" ranking for Co. Down.
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