Best HVAC & Air Conditioning in Co. Antrim
Ranked by Google ratings — updated 26 October 2026
As of 26 October 2026, LocallyIrish.ie ranks 12 hvac & air conditioning in Co. Antrim by customer rating. The top-rated is Gaia Smart Energy, with 5.0 stars from 123 Google ratings. NSR Boiler Services follows with 5.0 from 42 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.
Gaia Smart Energy
Gold · 2026 Top Rated
NSR Boiler Services
Silver · 2026 Top RatedMcClure Plumbing and Heating
Bronze · 2026 Top RatedDevlin Mechanical Ltd
B P C Ventilation
Aircon
Portglenone Refrigeration Services Ltd
Cool IT Refrigeration
Coolair Refrigeration & Air Conditioning N I Ltd
Climate Northern Ireland
Wolseley Climate
Chilltec Refrigeration and Air Conditioning Services Northern Ireland
Also in Co. Antrim — not enough ratings to rank yet
Zircon Air Conditioning (NI) Ltd
Belfast
TD HVAC Ltd
Belfast
Postiive Ventilation - Ken Crombie
Lisburn
Thermal Dynamic Technical Services
Belfast
H V A C Supplies
Belfast
T R Ventilation
Ballymena
PDM Vent
Larne
Fridge Air
Antrim
N.I Environmental
Larne
Pulse-Air
Craigavon
Global Cooling Solutions Ltd
Ballyclare
BL Refrigeration & Air Conditioning Ltd
Belfast
Coolair Refrigeration & Air Conditioning (NI) Ltd
Ballyclare
Raci Services
Belfast
BTK Services
Belfast
Carrier Rental Systems
Lisburn
BL Refrigeration and Air Conditioning
Belfast
MF Cooling Services
Lisburn
Adamson Refrigeration Contracts NI
Belfast
Refrigeration Services Ni Ltd
Lisburn
Advanced Ventilation Solutions Ltd
Ballyclare
Best hvac & air conditioning in Antrim — FAQs
What is the best hvac & air conditioning in Antrim?
Gaia Smart Energy is currently the top-rated hvac & air conditioning in Co. Antrim, with 5.0 stars from 123 Google ratings. See the full ranked list above.
How are the best hvac & air conditioning in Antrim 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 Antrim?
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. Antrim.
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