41 HVAC contractors ranked by CR ScoreUpdated 0 paid placements in this rankingHow we rank →
Best overall in Lethbridge: Reliance Heating, Air Conditioning & Plumbing, CR Score 65/100; 4.8★ from 171 Google reviews; open 24/7.
Best for emergencies (open 24/7): FinePipes Plumbing, posts 24/7 hours; ranked #2 of 41.
Most-reviewed: Charlton & Hill Home Services, 794 Google reviews at 4.8★, the most of 41 ranked; ranked #5.
Rankings can't be bought. Contractors can't pay to change their rank or score. How we rank
41 Lethbridge HVAC contractors are ranked here by CR Score, from ten published factors. 7 are open 24/7, 10 open Saturdays and 7 open Sundays, based on posted hours. The median Google rating is 4.8★ across 41 rated businesses.
| Rank | Business | CR Score | Google rating | Based in | Hours | Best for |
|---|---|---|---|---|---|---|
| 1 | Reliance Heating, Air Conditioning & Plumbing | 65 | 4.8★ (171) | Lethbridge | 24/7 | Overall |
| 2 | FinePipes Plumbing | 64 | 4.9★ (99) | Lethbridge | 24/7 | Emergencies |
| 3 | Expert Plumbing Lethbridge | 64 | 4.8★ (99) | Lethbridge | 24/7 | — |
| 4 | HVAC Doctor - Lethbridge | 62 | 4.9★ (47) | Lethbridge | 24/7 | — |
| 5 | Charlton & Hill Home Services | 62 | 4.8★ (794) | Lethbridge | — | Most reviews |
| 6 | K B Heating | 60 | 4.6★ (492) | Lethbridge | — | — |
| 7 | My Service Company | 60 | 4.9★ (210) | Lethbridge | — | — |
| 8 | Airtech Heating & Air Conditioning Ltd. | 60 | 4.9★ (175) | Lethbridge | — | — |
| 9 | Energy Smart Canada Ltd. | 60 | 5.0★ (124) | Lethbridge | — | — |
| 10 | Breathe Easy Heating and Air Conditioning | 60 | 4.7★ (232) | Lethbridge | — | — |
Ordered by CR Score, a 0–100 score from ten published factors. Paid placement never changes the order.
Ranked #1 because of its Google rating and trade focus: 4.8★ from 171 Google reviews, listed on Google as “HVAC contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Lethbridge
Ranked #2 because of its Google rating and trade focus: 4.9★ from 99 Google reviews, listed on Google as “HVAC contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Lethbridge
Ranked #3 because of its Google rating and trade focus: 4.8★ from 99 Google reviews, listed on Google as “Air conditioning contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Lethbridge
Ranked #4 because of its Google rating and trade focus: 4.9★ from 47 Google reviews, listed on Google as “HVAC contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Lethbridge
Ranked #5 because of its Google rating and review volume: 4.8★ from 794 Google reviews, the most in Lethbridge.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Lethbridge
Ranked #6 because of its Google rating and trade focus: 4.6★ from 492 Google reviews, listed on Google as “HVAC contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Lethbridge
Ranked #7 because of its Google rating and trade focus: 4.9★ from 210 Google reviews, listed on Google as “HVAC contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Lethbridge
Ranked #8 because of its Google rating and trade focus: 4.9★ from 175 Google reviews, listed on Google as “HVAC contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Lethbridge
Ranked #9 because of its Google rating and trade focus: 5.0★ from 124 Google reviews, listed on Google as “HVAC contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Lethbridge
Ranked #10 because of its Google rating and trade focus: 4.7★ from 232 Google reviews, listed on Google as “HVAC contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Lethbridge
Ranked #11 because of its Google rating and trade focus: 4.8★ from 61 Google reviews, listed on Google as “Heating contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Lethbridge
Ranked #12 because of its Google rating and trade focus: 4.5★ from 230 Google reviews, listed on Google as “HVAC contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Lethbridge
Ranked #13 because of its Google rating and trade focus: 4.4★ from 7 Google reviews, listed on Google as “HVAC contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Lethbridge
Ranked #14 because of its Google rating and trade focus: 5.0★ from 63 Google reviews, listed on Google as “HVAC contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Lethbridge
Ranked #15 because of its Google rating and trade focus: 4.6★ from 123 Google reviews, listed on Google as “HVAC contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Lethbridge
Ranked #16 because of its Google rating and trade focus: 4.2★ from 5 Google reviews, listed on Google as “HVAC contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Lethbridge
Ranked #17 because of its Google rating and trade focus: 4.8★ from 48 Google reviews, listed on Google as “HVAC contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Lethbridge
Ranked #18 because of its Google rating and trade focus: 4.8★ from 50 Google reviews, listed on Google as “HVAC contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Lethbridge
Ranked #19 because of its Google rating and trade focus: 5.0★ from 29 Google reviews, listed on Google as “HVAC contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Lethbridge
Ranked #20 because of its Google rating and trade focus: 4.7★ from 43 Google reviews, listed on Google as “Heating contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Lethbridge
Ranked #21 because of its Google rating and trade focus: 5.0★ from 9 Google reviews, listed on Google as “Plumber”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Lethbridge
Ranked #22 because of its Google rating and trade focus: 4.7★ from 6 Google reviews, listed on Google as “HVAC contractor”.
Based on 7 of 10 factors; credentials, recency and availability not yet collected.
Based in Lethbridge
Ranked #23 because of its Google rating and trade focus: 4.5★ from 30 Google reviews, listed on Google as “HVAC contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Lethbridge
Ranked #24 because of its Google rating and trade focus: 5.0★ from 16 Google reviews, listed on Google as “Heating contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Lethbridge
Ranked #25 because of its Google rating and trade focus: 4.3★ from 25 Google reviews, listed on Google as “HVAC contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
#1 to #25 are shown in full above. Here are #26 to #41, in CR Score order; each links to its profile.
| Rank | Business | CR Score | Google rating | Distance |
|---|---|---|---|---|
| 26 | Peeks Heating & Air Conditioning Ltd. | 55 | 4.4★ (20) | In Lethbridge |
| 27 | Gratton Mechanical Ltd | 55 | 4.7★ (13) | In Lethbridge |
| 28 | ColdFront Lethbridge | 55 | 4.9★ (11) | In Lethbridge |
| 29 | Thermal Core Solutions | 54 | 5.0★ (3) | In Lethbridge |
| 30 | Thermax Refrigeration & Heating Ltd. | 54 | 4.6★ (11) | In Lethbridge |
| 31 | Hawk Eye Heating & AC Ltd. | 54 | 5.0★ (25) | 16 km |
| 32 | Adaptive Heating & Air Conditioning Ltd | 54 | 5.0★ (6) | In Lethbridge |
| 33 | Neudorf Plumbing & Heating | 53 | 4.4★ (93) | In Lethbridge |
| 34 | CL Plumbing & Heating | 53 | 4.0★ (6) | In Lethbridge |
| 35 | Aquatech Plumbing and Heating Lethbridge Ltd. | 52 | 5.0★ (21) | In Lethbridge |
| 36 | Hot & Cold Plumbing and Heating | 52 | 5.0★ (22) | In Lethbridge |
| 37 | Reive Plumbing & Heating Ltd | 52 | 4.3★ (66) | In Lethbridge |
| 38 | Big Rock Plumbing & Heating | 52 | 5.0★ (7) | In Lethbridge |
| 39 | Liquid Empire Plumbing & Heating Group | 52 | 4.8★ (18) | In Lethbridge |
| 40 | Plum Plumbing & Heating | 49 | 5.0★ (3) | In Lethbridge |
| 41 | Lethbridge Plumbing and Heating. | 49 | 4.3★ (4) | In Lethbridge |
20 more HVAC contractors within 40 km that we can't rank yet: too few reviews, or a trade we couldn't confirm. Listed A to Z.
US national ranges converted to CAD, not adjusted for Lethbridge. Each row names its basis and the month we checked it.
| Job | Low | Typical | High | Basis | Checked |
|---|---|---|---|---|---|
| AC replacement | CA$5,460 | CA$8,400 | CA$11,350 | Per system, installed (unit plus labor); typical range of customer-reported jobs. US national range converted at 1.4054 CAD per USD (Bank of Canada, October 20, 2026) | October 2026 |
| Furnace replacement | CA$3,970 | CA$6,770 | CA$9,690 | Per system, installed; typical range of customer-reported jobs. US national range converted at 1.4054 CAD per USD (Bank of Canada, October 20, 2026) | October 2026 |
In Alberta, furnace and heat pump calls peak in the coldest winter weeks and AC calls in summer heat waves. Spring and fall are the easiest times to book maintenance or a replacement.
We scored 41 Lethbridge HVAC contractors on ten factors, weighted as shown. A business is ranked when its trade is confirmed and it has 3 or more Google reviews or a claimed profile. A business with no Google reviews scores zero on rating, review volume and recency. Other unknown factors are left out, not counted as zero. Scores last refreshed October 22, 2026.
Paid placement never changes a rank or score. Featured businesses are paid, labelled, limited to 3 and shown above the ranking, outside it.
| Factor | Weight | Computed from | In Lethbridge data |
|---|---|---|---|
| Reputation | 25% | Google star rating, adjusted for how many reviews back it | Measured |
| Credentials | 15% | Active state license, bond and workers’ comp on file | Not yet collected |
| Review volume | 10% | Number of Google reviews, compared with the most-reviewed business on the list | Measured |
| Recency | 5% | Share of reviews from the last 12 months | Not yet collected |
| Availability | 5% | Weekly open hours, Saturday, Sunday, 24/7 or same-day | Measured |
| Trade focus | 10% | How clearly the business does this trade (its Google category and name) | Measured |
| Proximity | 5% | Based in the city scores highest, less the farther away it is | Measured |
| Claimed profile | 10% | The business has claimed its ContractorsRanked profile (free or paid earn the same) | Measured |
| Partnered | 5% | The business links to ContractorsRanked from its own website with our badge, checked periodically | Measured |
| ContractorsRanked reviews | 10% | Verified customer reviews collected by ContractorsRanked: their rating and how many there are | Measured |