Best HVAC & Air Conditioning in Co. Derry
Ranked by Google ratings — updated 25 October 2026
As of 25 October 2026, LocallyIrish.ie ranks 1 hvac & air conditioning in Co. Derry by customer rating. The top-rated is BEAM Vacuum & Ventilation, with 4.4 stars from 192 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.
Also in Co. Derry — not enough ratings to rank yet
Foster Refrigeration and Air Conditioning
Londonderry
Swift Lane Workforce
Londonderry
Oasis Refrigeration and Air Conditioning
Londonderry
Pure Air Ventilation Ltd
Londonderry
Triology - Technologies
Londonderry
CPW Gas Services Ltd
Coleraine
Premiair Refrigeration & Air Conditioning Ltd
Londonderry
ATC Systems L'Derry
Londonderry
Best hvac & air conditioning by town
Best hvac & air conditioning in Derry — FAQs
What is the best hvac & air conditioning in Derry?
BEAM Vacuum & Ventilation is currently the top-rated hvac & air conditioning in Co. Derry, with 4.4 stars from 192 Google ratings. See the full ranked list above.
How are the best hvac & air conditioning in Derry 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 hvac & air conditioning business rank higher in Derry?
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. Derry.
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