4814 1 St SW, Calgary, AB T2G 0A2 · SW
67/ 100Good
4.4 from 59 Google reviews
phone and website
2 of 3 details stated on their own site — their claims, not our checks
Not counted — no bonus earned, and nothing deducted
Our own calculation, not Google’s and not the contractor’s. Ratings from few reviews are held closer to average, because a handful of five-star reviews is not the same evidence as a long record. The items above can only add to a score, never subtract from one: a contractor scoring nothing on all of them still reaches 80 out of 100 on a strong rating alone. “Not counted” means we have no bonus to award, not that anything is wrong.
Their website advertises 24/7 emergency cover and describes itself as fully licensed.
🔥 Heating & gas
Also listed
Memberships they list
Areas they say they serve
Calgary · Southern Alberta
Taken from their own website (www.subzerotechnical.com), read on September 9, 2026. These are the company’s statements about itself, quoted from the page — not claims we have checked. Ask to see a licence before any gas work.
“Sub Zero is a family owned and operatated HVAC company in Calgary, Alberta. That was founded by Ross Lindsay, who was affectionately known as "Senior" by his friends and family. He left a lasting legacy in the culture of Sub Zero Technical, where he instilled a strong work ethic and a caring attitude towards others. Ross was always eager to assist those in need, and his vast knowledge of the HVAC industry made him the heartbeat of our team. Sub Zero Technical continues to honor his memory by upholding his values and providing excellent service to our clients. We have been serving Southern Alberta for over 30 years with pride and dedication to our trade.”
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4.4from 59 Google reviews
Furnace repair and no-heat callouts in CalgaryAir conditioning repair and installation in Calgary
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