37 HVAC contractors ranked by CR ScoreUpdated 0 paid placements in this rankingHow we rank →
Best overall in Mandan: Bismarck Heating & Air Conditioning, CR Score 95/100; 4.9★ from 1,622 Google reviews; open 24/7.
Best for emergencies (open 24/7): Ed's Heating & Air, posts 24/7 hours; ranked #2 of 37.
Most-reviewed: Ed's Heating & Air, 518 Google reviews at 4.9★, the most of 37 ranked after Bismarck Heating & Air Conditioning; ranked #2.
Rankings can't be bought. Contractors can't pay to change their rank or score. How we rank
37 Mandan HVAC contractors are ranked here by CR Score, from 8 published factors. 13 are open 24/7, 14 open Saturdays and 14 open Sundays, based on posted hours. The median Google rating is 4.8★ across 37 rated businesses.
| Rank | Business | CR Score | Google rating | Based in | Hours | Best for |
|---|---|---|---|---|---|---|
| 1 | Bismarck Heating & Air Conditioning | 95 | 4.9★ (1,622) | Bismarck, 6 mi away | 24/7 | Overall |
| 2 | Ed's Heating & Air | 93 | 4.9★ (518) | Bismarck, 6 mi away | 24/7 | Emergencies, Most reviews |
| 3 | Preferred Heating & Air | 91 | 4.9★ (181) | Bismarck, 6 mi away | 24/7 | — |
| 4 | Advanced Mechanical Inc. | 89 | 4.8★ (122) | Bismarck, 7 mi away | 24/7 | — |
| 5 | River City Heating & Air, Refrigeration | 88 | 4.6★ (147) | Bismarck, 7 mi away | 24/7 | — |
| 6 | Cooling & Heating Unlimited | 88 | 4.7★ (70) | Bismarck, 6 mi away | 24/7 | — |
| 7 | Golden Heating and Air LLC | 86 | 5.0★ (8) | Mandan | 24/7 | — |
| 8 | Quick Fix Air Comfort - Heating & Cooling | 85 | 4.9★ (70) | Bismarck, 9 mi away | Sat · Sun · Evenings | — |
| 9 | Dakota Four Seasons Heating & Cooling | 84 | 5.0★ (6) | Mandan | 24/7 | — |
| 10 | H.A. Thompson & Sons | 84 | 4.0★ (74) | Bismarck, 6 mi away | 24/7 | — |
Ordered by CR Score, a 0–100 score from 8 published factors. Paid placement never changes the order.
Ranked #1 because of its Google rating and review volume: 4.9★ from 1,622 Google reviews, the most Google reviews on this list (1,622).
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Bismarck, 6 mi away
Ranked #2 because of its Google rating and availability: 4.9★ from 518 Google reviews, open 24/7.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Bismarck, 6 mi away
Ranked #3 because of its Google rating and availability: 4.9★ from 181 Google reviews, open 24/7.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Bismarck, 7 mi away
Ranked #4 because of its Google rating and availability: 4.8★ from 122 Google reviews, open 24/7.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Bismarck, 7 mi away
Ranked #5 because of its Google rating and availability: 4.6★ from 147 Google reviews, open 24/7.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Bismarck, 6 mi away
Ranked #6 because of its Google rating and availability: 4.7★ from 70 Google reviews, open 24/7.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Mandan
Ranked #7 because of its Google rating and availability: 5.0★ from 8 Google reviews, open 24/7.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Bismarck, 9 mi away
Ranked #8 because of its Google rating and trade focus: 4.9★ from 70 Google reviews, listed on Google as “HVAC contractor”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Mandan
Ranked #9 because of its Google rating and availability: 5.0★ from 6 Google reviews, open 24/7.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Bismarck, 6 mi away
Ranked #10 because of its Google rating and availability: 4.0★ from 74 Google reviews, open 24/7.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Bismarck, 7 mi away
Ranked #11 because of its Google rating and availability: 5.0★ from 4 Google reviews, open 24/7.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Mandan
Ranked #12 because of its Google rating and availability: 5.0★ from 6 Google reviews, open 24/7.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Bismarck, 10 mi away
Ranked #13 because of its Google rating and trade focus: 4.9★ from 27 Google reviews, listed on Google as “Air conditioning contractor”.
Based on 5 of 8 factors; credentials, recency and availability not yet collected.
Based in Mandan
Ranked #14 because of its Google rating and trade focus: 4.6★ from 35 Google reviews, listed on Google as “HVAC contractor”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Bismarck, 5 mi away
Ranked #15 because of its Google rating and availability: 4.1★ from 13 Google reviews, open 24/7.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Bismarck, 7 mi away
Ranked #16 because of its Google rating and trade focus: 4.8★ from 41 Google reviews, listed on Google as “HVAC contractor”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Mandan
Ranked #17 because of its Google rating and availability: 3.7★ from 3 Google reviews, open 24/7.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Mandan
Ranked #18 because of its Google rating and trade focus: 4.8★ from 19 Google reviews, listed on Google as “HVAC contractor”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Mandan
Ranked #19 because of its Google rating and trade focus: 4.3★ from 12 Google reviews, listed on Google as “Heating contractor”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Bismarck, 7 mi away
Ranked #20 because of its Google rating and trade focus: 4.6★ from 33 Google reviews, listed on Google as “HVAC contractor”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Bismarck, 6 mi away
Ranked #21 because of its Google rating and trade focus: 4.8★ from 145 Google reviews, listed on Google as “Plumber”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Bismarck, 7 mi away
Ranked #22 because of its Google rating and trade focus: 4.3★ from 61 Google reviews, listed on Google as “HVAC contractor”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Mandan
Ranked #23 because of its Google rating and trade focus: 4.4★ from 5 Google reviews, listed on Google as “HVAC contractor”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Bismarck, 6 mi away
Ranked #24 because of its Google rating and trade focus: 4.3★ from 21 Google reviews, listed on Google as “Heating contractor”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Bismarck, 7 mi away
Ranked #25 because of its Google rating and trade focus: 4.7★ from 15 Google reviews, listed on Google as “HVAC contractor”.
Based on 6 of 8 factors; credentials and recency not yet collected.
National price ranges in USD, not adjusted for Mandan. Each row names its basis and the month we checked it.
| Job | Low | Typical | High | Basis | Checked |
|---|---|---|---|---|---|
| AC replacement | $3,887 | $5,978 | $8,073 | Per system, installed (unit plus labor); typical range of customer-reported jobs. US national range | October 2026 |
| Furnace replacement | $2,823 | $4,814 | $6,896 | Per system, installed; typical range of customer-reported jobs. US national range | October 2026 |
In North Dakota, 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 37 Mandan 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 Mandan 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 |