8 HVAC contractors ranked by CR ScoreUpdated 0 paid placements in this rankingHow we rank →
Best overall in Mitchell: Kaiser Heating & Cooling, CR Score 93/100; 5.0★ from 69 Google reviews; open 24/7.
Best for emergencies (open 24/7): Paulson Air Heating & Cooling, posts 24/7 hours; ranked #2 of 8.
Most-reviewed: Paulson Air Heating & Cooling, 46 Google reviews at 4.5★, the most of 8 ranked after Kaiser Heating & Cooling; ranked #2.
Rankings can't be bought. Contractors can't pay to change their rank or score. How we rank
8 Mitchell HVAC contractors are ranked here by CR Score, from 8 published factors. 3 are open 24/7, 3 open Saturdays and 2 open Sundays, based on posted hours. The median Google rating is 5.0★ across 8 rated businesses.
| Rank | Business | CR Score | Google rating | Based in | Hours | Best for |
|---|---|---|---|---|---|---|
| 1 | Kaiser Heating & Cooling | 93 | 5.0★ (69) | Mitchell | 24/7 | Overall |
| 2 | Paulson Air Heating & Cooling | 92 | 4.5★ (46) | Mitchell | 24/7 | Emergencies, Most reviews |
| 3 | Grand Rising Group Plumbing | 90 | 5.0★ (12) | Mitchell | 24/7 | — |
| 4 | Trustworthy LLC | 86 | 5.0★ (9) | Mitchell | — | — |
| 5 | Eco-Mechanical Heat and A/C | 81 | 5.0★ (10) | Arlington, 12 mi away | — | — |
| 6 | Tessiers | 80 | 4.8★ (20) | Mitchell | — | — |
| 7 | Bailey Plumbing & Heating | 74 | 3.4★ (5) | Mitchell | — | — |
| 8 | Priority Plumbing & Heating | 72 | 5.0★ (4) | Mitchell | — | — |
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: 5.0★ from 69 Google reviews, the most Google reviews on this list (69).
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Mitchell
Ranked #2 because of its Google rating and availability: 4.5★ from 46 Google reviews, open 24/7.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Mitchell
Ranked #3 because of its Google rating and availability: 5.0★ from 12 Google reviews, open 24/7.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Mitchell
Ranked #4 because of its Google rating and trade focus: 5.0★ from 9 Google reviews, listed on Google as “HVAC contractor”.
Based on 5 of 8 factors; credentials, recency and availability not yet collected.
Based in Arlington, 12 mi away
Ranked #5 because of its Google rating and trade focus: 5.0★ from 10 Google reviews, listed on Google as “Heating contractor”.
Based on 5 of 8 factors; credentials, recency and availability not yet collected.
Based in Mitchell
Ranked #6 because of its Google rating and trade focus: 4.8★ from 20 Google reviews, listed on Google as “HVAC contractor”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Mitchell
Ranked #7 because of its Google rating and trade focus: 3.4★ from 5 Google reviews, listed on Google as “Plumber”.
Based on 5 of 8 factors; credentials, recency and availability not yet collected.
Based in Mitchell
Ranked #8 because of its Google rating and trade focus: 5.0★ from 4 Google reviews, listed on Google as “Plumber”.
Based on 6 of 8 factors; credentials and recency not yet collected.
National price ranges in USD, not adjusted for Mitchell. 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 South 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 8 Mitchell 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 Mitchell 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 |