19 HVAC contractors ranked by CR ScoreUpdated 0 paid placements in this rankingHow we rank →
Best overall in Dillon: Simmons One Hour Heating and Air Conditioning, CR Score 62/100; 4.8★ from 1,936 Google reviews; open 24/7.
Best for emergencies (open 24/7): Miller's Plumbing & Electric, posts 24/7 hours; ranked #2 of 19.
Most-reviewed: Thermo King of Florence, 171 Google reviews at 4.6★, the most of 19 ranked after Simmons One Hour Heating and Air Conditioning; ranked #6.
Rankings can't be bought. Contractors can't pay to change their rank or score. How we rank
19 Dillon HVAC contractors are ranked here by CR Score, from ten published factors. 4 are open 24/7, 11 open Saturdays and 7 open Sundays, based on posted hours. The median Google rating is 4.3★ across 19 rated businesses.
| Rank | Business | CR Score | Google rating | Based in | Hours | Best for |
|---|---|---|---|---|---|---|
| 1 | Simmons One Hour Heating and Air Conditioning | 62 | 4.8★ (1,936) | Laurinburg, 23 mi away | 24/7 | Overall |
| 2 | Miller's Plumbing & Electric | 58 | 4.3★ (49) | Dillon | 24/7 | Emergencies |
| 3 | Airtek Heating and Cooling LLC | 56 | 4.9★ (35) | Dillon | — | — |
| 4 | Cook Comfort Systems LLC | 55 | 4.9★ (61) | Florence, 24 mi away | Sat · Sun | — |
| 5 | Zeman Electric & Refrigeration | 54 | 4.1★ (18) | Marion, 16 mi away | 24/7 | — |
| 6 | Thermo King of Florence | 52 | 4.6★ (171) | Florence, 23 mi away | Evenings | Most reviews |
| 7 | Fahrenheit Fixers HVAC | 51 | 4.7★ (6) | Laurinburg, 21 mi away | 24/7 | — |
| 8 | Wheeler Electric Services Inc | 51 | 4.7★ (6) | Marion, 15 mi away | — | — |
| 9 | Tom's Appliance Air & Heating Etc. | 51 | 4.0★ (8) | Lumberton, 22 mi away | Sat · Sun | — |
| 10 | T&C heating &air | 50 | 5.0★ (3) | Lumberton, 23 mi away | Sat · Sun · Evenings | — |
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 review volume: 4.8★ from 1,936 Google reviews, the most in Dillon.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Dillon
Ranked #2 because of its Google rating and trade focus: 4.3★ from 49 Google reviews, listed on Google as “Air conditioning contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Dillon
Ranked #3 because of its Google rating and trade focus: 4.9★ from 35 Google reviews, listed on Google as “HVAC contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Florence, 24 mi away
Ranked #4 because of its Google rating and trade focus: 4.9★ from 61 Google reviews, listed on Google as “HVAC contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Marion, 16 mi away
Ranked #5 because of its Google rating and trade focus: 4.1★ from 18 Google reviews, listed on Google as “Air conditioning contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Florence, 23 mi away
Ranked #6 because of its Google rating and trade focus: 4.6★ from 171 Google reviews, listed on Google as “HVAC contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Laurinburg, 21 mi away
Ranked #7 because of its Google rating and trade focus: 4.7★ from 6 Google reviews, listed on Google as “Air conditioning contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Marion, 15 mi away
Ranked #8 because of its Google rating and trade focus: 4.7★ from 6 Google reviews, listed on Google as “Heating contractor”.
Based on 7 of 10 factors; credentials, recency and availability not yet collected.
Based in Lumberton, 22 mi away
Ranked #9 because of its Google rating and trade focus: 4.0★ from 8 Google reviews, listed on Google as “Air conditioning contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Lumberton, 23 mi away
Ranked #10 because of its Google rating and trade focus: 5.0★ from 3 Google reviews, listed on Google as “HVAC contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Marion, 16 mi away
Ranked #11 because of its Google rating and trade focus: 4.0★ from 4 Google reviews, listed on Google as “HVAC contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Bennettsville, 22 mi away
Ranked #12 because of its Google rating and trade focus: 3.7★ from 3 Google reviews, listed on Google as “HVAC contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Laurinburg, 23 mi away
Ranked #13 because of its Google rating and trade focus: 3.9★ from 45 Google reviews, listed on Google as “Air conditioning contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Bennettsville, 22 mi away
Ranked #14 because of its Google rating and trade focus: 4.7★ from 25 Google reviews, listed on Google as “HVAC contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Bennettsville, 23 mi away
Ranked #15 because of its Google rating and trade focus: 4.1★ from 12 Google reviews, listed on Google as “Air conditioning contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Bennettsville, 23 mi away
Ranked #16 because of its Google rating and trade focus: 4.4★ from 37 Google reviews, listed on Google as “Air conditioning contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Laurinburg, 22 mi away
Ranked #17 because of its Google rating and trade focus: 3.6★ from 9 Google reviews, listed on Google as “Air conditioning contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Marion, 18 mi away
Ranked #18 because of its Google rating and trade focus: 4.2★ from 5 Google reviews, listed on Google as “Air conditioning contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Lumberton, 23 mi away
Ranked #19 because of its Google rating and trade focus: 3.0★ from 9 Google reviews, listed on Google as “HVAC contractor”.
Based on 7 of 10 factors; credentials, recency and availability not yet collected.
14 more HVAC contractors within 25 mi that we can't rank yet: too few reviews, or a trade we couldn't confirm. Listed A to Z.
| Business | Google rating | Distance |
|---|---|---|
| A Plus Heating Cooling and Home Repair | 24 mi | |
| A+ Heating Cooling and Home Repair | 25 mi | |
| Arctic Breeze Llc | 5.0★ (2) | In Dillon |
| C&S Comfort Systems LLP | In Dillon | |
| Carter's Heating, Air Conditioning and Refrigeration | 20 mi | |
| Causeys Heating & Air | 5.0★ (2) | In Dillon |
| Custom Air Conditioning & Heating | 23 mi | |
| Florence HVAC Experts | 5.0★ (2) | 24 mi |
| Huggins Heating & Cooling Inc | 23 mi | |
| Hunts Heating & Air | 5.0★ (2) | 21 mi |
| HVAC of Florence | 22 mi | |
| Lee's Heating & Air | 5.0★ (1) | 20 mi |
| Prime Heating & AC Services | 16 mi | |
| Service Compressor Parts, Inc. | 5.0★ (1) | 25 mi |
National price ranges in USD, not adjusted for Dillon. 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 Carolina, South Carolina Contractor’s Licensing Board (LLR) licenses Mechanical contractor licenses for commercial work; residential specialty contractors register with the Residential Builders Commission.
No chip usually means we have not matched a state record yet. Check the lookup yourself before you hire.
Guide checked October 2026. How we verify licenses
In South Carolina, air conditioning calls peak in the hottest summer months. Spring is the easiest time to book a tune-up or replacement, before the first heat wave.
We scored 19 Dillon 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 Dillon 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 |