43 HVAC contractors ranked by CR ScoreUpdated 0 paid placements in this rankingHow we rank →
Best overall in Coaldale: Reliance Heating, Air Conditioning & Plumbing, CR Score 90/100; 4.8★ from 171 Google reviews; open 24/7.
Best for emergencies (open 24/7): Expert Plumbing Lethbridge, posts 24/7 hours; ranked #2 of 43.
Most-reviewed: Charlton & Hill Home Services, 794 Google reviews at 4.8★, the most of 43 ranked; ranked #5.
Rankings can't be bought. Contractors can't pay to change their rank or score. How we rank
43 Coaldale HVAC contractors are ranked here by CR Score, from 8 published factors. 6 are open 24/7, 9 open Saturdays and 6 open Sundays, based on posted hours. The median Google rating is 4.8★ across 43 rated businesses.
| Rank | Business | CR Score | Google rating | Based in | Hours | Best for |
|---|---|---|---|---|---|---|
| 1 | Reliance Heating, Air Conditioning & Plumbing | 90 | 4.8★ (171) | Lethbridge, 12 km away | 24/7 | Overall |
| 2 | Expert Plumbing Lethbridge | 89 | 4.8★ (99) | Lethbridge, 15 km away | 24/7 | Emergencies |
| 3 | HVAC Doctor - Lethbridge | 88 | 4.9★ (47) | Lethbridge, 13 km away | 24/7 | — |
| 4 | Bosch Mechanical | 83 | 4.2★ (5) | Lethbridge, 13 km away | 24/7 | — |
| 5 | Charlton & Hill Home Services | 82 | 4.8★ (794) | Lethbridge, 14 km away | — | Most reviews |
| 6 | RD Mechanical Contracting | 81 | 4.4★ (7) | Lethbridge, 26 km away | 24/7 | — |
| 7 | Reliance Mechanical | 80 | 4.8★ (61) | Lethbridge, 17 km away | Sat | — |
| 8 | Airtech Heating & Air Conditioning Ltd. | 80 | 4.9★ (175) | Lethbridge, 12 km away | — | — |
| 9 | K B Heating | 80 | 4.6★ (492) | Lethbridge, 12 km away | — | — |
| 10 | My Service Company | 80 | 4.9★ (210) | Lethbridge, 15 km away | — | — |
Ordered by CR Score, a 0–100 score from 8 published factors. Paid placement never changes the order.
Ranked #1 in Coaldale
Based in Lethbridge, 12 km away
Ranked #1 because of its Google rating and availability: 4.8★ from 171 Google reviews, open 24/7.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Lethbridge, 15 km away
Ranked #2 because of its Google rating and availability: 4.8★ from 99 Google reviews, open 24/7.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Lethbridge, 13 km away
Ranked #3 because of its Google rating and availability: 4.9★ from 47 Google reviews, open 24/7.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Lethbridge, 13 km away
Ranked #4 because of its Google rating and availability: 4.2★ from 5 Google reviews, open 24/7.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Lethbridge, 14 km away
Ranked #5 because of its Google rating and review volume: 4.8★ from 794 Google reviews, the most Google reviews on this list (794).
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Lethbridge, 26 km away
Ranked #6 because of its Google rating and availability: 4.4★ from 7 Google reviews, open 24/7.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Lethbridge, 17 km away
Ranked #7 because of its Google rating and trade focus: 4.8★ from 61 Google reviews, listed on Google as “Heating contractor”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Lethbridge, 12 km away
Ranked #8 because of its Google rating and trade focus: 4.9★ from 175 Google reviews, listed on Google as “HVAC contractor”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Lethbridge, 12 km away
Ranked #9 because of its Google rating and trade focus: 4.6★ from 492 Google reviews, listed on Google as “HVAC contractor”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Lethbridge, 15 km away
Ranked #10 because of its Google rating and trade focus: 4.9★ from 210 Google reviews, listed on Google as “HVAC contractor”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Lethbridge, 13 km away
Ranked #11 because of its Google rating and trade focus: 5.0★ from 124 Google reviews, listed on Google as “HVAC contractor”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Lethbridge, 12 km away
Ranked #12 because of its Google rating and trade focus: 4.7★ from 6 Google reviews, listed on Google as “HVAC contractor”.
Based on 5 of 8 factors; credentials, recency and availability not yet collected.
Based in Lethbridge, 12 km away
Ranked #13 because of its Google rating and trade focus: 4.7★ from 232 Google reviews, listed on Google as “HVAC contractor”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Lethbridge, 14 km away
Ranked #14 because of its Google rating and availability: 5.0★ from 9 Google reviews, open 24/7.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Lethbridge, 13 km away
Ranked #15 because of its Google rating and trade focus: 5.0★ from 63 Google reviews, listed on Google as “HVAC contractor”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Coaldale
Ranked #16 because of its Google rating and trade focus: 5.0★ from 25 Google reviews, listed on Google as “HVAC contractor”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Lethbridge, 12 km away
Ranked #17 because of its Google rating and trade focus: 4.5★ from 230 Google reviews, listed on Google as “HVAC contractor”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Lethbridge, 12 km away
Ranked #18 because of its Google rating and trade focus: 4.6★ from 123 Google reviews, listed on Google as “HVAC contractor”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Lethbridge, 12 km away
Ranked #19 because of its Google rating and trade focus: 4.8★ from 50 Google reviews, listed on Google as “HVAC contractor”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Lethbridge, 14 km away
Ranked #20 because of its Google rating and trade focus: 4.8★ from 48 Google reviews, listed on Google as “HVAC contractor”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Lethbridge, 15 km away
Ranked #21 because of its Google rating and trade focus: 5.0★ from 29 Google reviews, listed on Google as “HVAC contractor”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Lethbridge, 17 km away
Ranked #22 because of its Google rating and trade focus: 5.0★ from 3 Google reviews, listed on Google as “HVAC contractor”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Lethbridge, 12 km away
Ranked #23 because of its Google rating and trade focus: 4.7★ from 43 Google reviews, listed on Google as “Heating contractor”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Lethbridge, 12 km away
Ranked #24 because of its Google rating and trade focus: 4.5★ from 30 Google reviews, listed on Google as “HVAC contractor”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Lethbridge, 12 km away
Ranked #25 because of its Google rating and trade focus: 4.9★ from 11 Google reviews, listed on Google as “HVAC contractor”.
Based on 6 of 8 factors; credentials and recency not yet collected.
#1 to #25 are shown in full above. Here are #26 to #39, in CR Score order; each links to its profile. We publish the top 39 of 43 ranked HVAC contractors here; the rest are on their profiles.
| Rank | Business | CR Score | Google rating | Distance |
|---|---|---|---|---|
| 26 | ABC Heating and Cooling - Lethbridge, AB | 74 | 4.3★ (25) | 13 km |
| 39 | White's Plumbing & Heating (Taber) Ltd | 70 | 4.2★ (21) | 35 km |
US national ranges converted to CAD, not adjusted for Coaldale. 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 43 Coaldale HVAC contractors on 8 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. Unknown factors are left out of the score, 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 Coaldale data |
|---|---|---|---|
| Reputation | 35% | Bayesian-adjusted Google star rating | Measured |
| Credentials | 15% | Active state license 0.6, bond 0.2, workers’ comp 0.2 | Not yet collected |
| Review volume | 10% | log10(reviews + 1) against the list maximum | Measured |
| Recency | 10% | Share of reviews from the last 12 months | Not yet collected |
| Availability | 10% | Weekly open hours, Saturday, Sunday, 24/7 or same-day | Measured |
| Trade focus | 10% | Google main category 1.0, business name 0.7, additional category 0.5 | Measured |
| Proximity | 5% | 1.0 when based in the city, falling to 0 at the trade’s radius | Measured |
| Completeness | 5% | Website, photos, description, hours, claimed profile (0.2 each) | Measured |