137 HVAC contractors ranked by CR ScoreUpdated 0 paid placements in this rankingHow we rank →
Best overall in Chestertown: Horizon Services - Air Conditioning, Heating, Plumbing & Electrical, CR Score 62/100; 4.8★ from 2,282 Google reviews; open 24/7.
Best for emergencies (open 24/7): Aire Serv of Elkton, posts 24/7 hours; ranked #2 of 137.
Most-reviewed: Constellation Home, 1,861 Google reviews at 4.2★, the most of 137 ranked after Horizon Services - Air Conditioning, Heating, Plumbing & Electrical; ranked #49.
Rankings can't be bought. Contractors can't pay to change their rank or score. How we rank
137 Chestertown HVAC contractors are ranked here by CR Score, from ten published factors. 39 are open 24/7, 74 open Saturdays and 48 open Sundays, based on posted hours. The median Google rating is 4.9★ across 137 rated businesses.
| Rank | Business | CR Score | Google rating | Based in | Hours | Best for |
|---|---|---|---|---|---|---|
| 1 | Horizon Services - Air Conditioning, Heating, Plumbing & Electrical | 62 | 4.8★ (2,282) | Havre de Grace, 24 mi away | 24/7 | Overall |
| 2 | Aire Serv of Elkton | 61 | 4.9★ (549) | Newark, 20 mi away | 24/7 | Emergencies |
| 3 | Aire Serv of Middletown | 60 | 4.9★ (625) | Middletown, 24 mi away | 24/7 | — |
| 4 | Shoreline Comfort | 60 | 5.0★ (285) | Stevensville, 21 mi away | 24/7 | — |
| 5 | HGH Mechanical | 60 | 4.9★ (337) | Edgewood, 21 mi away | 24/7 | — |
| 6 | Chesapeake Comfort Systems | 59 | 4.8★ (382) | Stevensville, 21 mi away | 24/7 | — |
| 7 | Maryland Heating & Air | 59 | 4.9★ (369) | Essex, 23 mi away | 24/7 | — |
| 8 | Broyles HVACR | 59 | 4.9★ (244) | Joppatowne, 21 mi away | 24/7 | — |
| 9 | Reliability Home Services | 59 | 4.7★ (539) | Dundalk, 22 mi away | 24/7 | — |
| 10 | Hughes Mechanical, LLC | 59 | 4.8★ (408) | Essex, 23 mi away | 24/7 | — |
Ordered by CR Score, a 0–100 score from ten published factors. Paid placement never changes the order.
Ranked #1 in Chestertown
Based in Havre de Grace, 24 mi away
Ranked #1 because of its Google rating and review volume: 4.8★ from 2,282 Google reviews, the most in Chestertown.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Newark, 20 mi away
Ranked #2 because of its Google rating and trade focus: 4.9★ from 549 Google reviews, listed on Google as “HVAC contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Middletown, 24 mi away
Ranked #3 because of its Google rating and trade focus: 4.9★ from 625 Google reviews, listed on Google as “HVAC contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Stevensville, 21 mi away
Ranked #4 because of its Google rating and trade focus: 5.0★ from 285 Google reviews, listed on Google as “HVAC contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Edgewood, 21 mi away
Ranked #5 because of its Google rating and trade focus: 4.9★ from 337 Google reviews, listed on Google as “HVAC contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Stevensville, 21 mi away
Ranked #6 because of its Google rating and trade focus: 4.8★ from 382 Google reviews, listed on Google as “HVAC contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Essex, 23 mi away
Ranked #7 because of its Google rating and trade focus: 4.9★ from 369 Google reviews, listed on Google as “HVAC contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Joppatowne, 21 mi away
Ranked #8 because of its Google rating and trade focus: 4.9★ from 244 Google reviews, listed on Google as “HVAC contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Dundalk, 22 mi away
Ranked #9 because of its Google rating and trade focus: 4.7★ from 539 Google reviews, listed on Google as “HVAC contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Essex, 23 mi away
Ranked #10 because of its Google rating and trade focus: 4.8★ from 408 Google reviews, listed on Google as “HVAC contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Essex, 23 mi away
Ranked #11 because of its Google rating and trade focus: 5.0★ from 195 Google reviews, listed on Google as “HVAC contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Bel Air North, 25 mi away
Ranked #12 because of its Google rating and trade focus: 4.9★ from 309 Google reviews, listed on Google as “HVAC contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Bel Air North, 23 mi away
Ranked #13 because of its Google rating and trade focus: 5.0★ from 378 Google reviews, listed on Google as “HVAC contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Dundalk, 22 mi away
Ranked #14 because of its Google rating and trade focus: 4.7★ from 247 Google reviews, listed on Google as “HVAC contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Essex, 23 mi away
Ranked #15 because of its Google rating and trade focus: 4.8★ from 530 Google reviews, listed on Google as “HVAC contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Stevensville, 21 mi away
Ranked #16 because of its Google rating and trade focus: 5.0★ from 203 Google reviews, listed on Google as “HVAC contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Rosedale, 25 mi away
Ranked #17 because of its Google rating and trade focus: 4.9★ from 400 Google reviews, listed on Google as “HVAC contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Bel Air North, 22 mi away
Ranked #18 because of its Google rating and trade focus: 5.0★ from 52 Google reviews, listed on Google as “HVAC contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Smyrna, 24 mi away
Ranked #19 because of its Google rating and trade focus: 5.0★ from 1,052 Google reviews, listed on Google as “HVAC contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Chestertown
Ranked #20 because of its Google rating and trade focus: 4.9★ from 12 Google reviews, listed on Google as “Heating contractor”.
Based on 7 of 10 factors; credentials, recency and availability not yet collected.
Based in Middle River, 21 mi away
Ranked #21 because of its Google rating and trade focus: 5.0★ from 37 Google reviews, listed on Google as “HVAC contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Easton, 16 mi away
Ranked #22 because of its Google rating and trade focus: 4.9★ from 100 Google reviews, listed on Google as “HVAC contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Essex, 23 mi away
Ranked #23 because of its Google rating and trade focus: 5.0★ from 32 Google reviews, listed on Google as “HVAC contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Stevensville, 21 mi away
Ranked #24 because of its Google rating and trade focus: 5.0★ from 59 Google reviews, listed on Google as “HVAC contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Bel Air North, 23 mi away
Ranked #25 because of its Google rating and trade focus: 5.0★ from 27 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 #50, in CR Score order; each links to its profile. We publish the top 50 of 137 ranked HVAC contractors here; the rest are on their profiles.
20 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 |
|---|---|---|
| 24/7 HVAC | 1.0★ (1) | 18 mi |
| All About Everything HVAC & Maintenance | 3.0★ (2) | 24 mi |
| Bennett Air Care LLC | 5.0★ (2) | 21 mi |
| Clyde HVAC & Airduct Cleaning Aberdeen | 5.0★ (3) | 24 mi |
| Commercial CAD | 5.0★ (2) | 23 mi |
| DJE Plumbing and Heating | 5.0★ (2) | 25 mi |
| General & Mechanical Services | 3.0★ (4) | 23 mi |
| Hall Enterprises LLC | 5.0★ (1) | 23 mi |
| J C Warner Co Inc | 5.0★ (1) | 21 mi |
| LBI Mechanical Services | 5.0★ (1) | 21 mi |
| Lighthouse | 4.6★ (5) | 21 mi |
| Mill HVAC & Airduct cleaning Iddletown | 5.0★ (2) | 25 mi |
| Relay Mechanical Inc | 4.1★ (12) | In Chestertown |
| Soul HVAC | 5.0★ (10) | 20 mi |
| Standard Heating & Air Conditioning | 4.0★ (4) | 24 mi |
| Steele's Ref Heating & AC | 1.0★ (1) | 20 mi |
| Thomas Air Conditioning Services, Inc. | 5.0★ (2) | 23 mi |
| Watson's Plumbing & Heating | 4.2★ (36) | 22 mi |
| Wrangler Plumbing & Heating | 5.0★ (2) | 23 mi |
| Yerkie Heating & Air | 5.0★ (1) | 22 mi |
National price ranges in USD, not adjusted for Chestertown. 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 Maryland, Maryland State Board of Heating, Ventilation, Air-Conditioning and Refrigeration Contractors licenses Heating, ventilation, air conditioning and refrigeration work.
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
HVAC demand peaks in summer for cooling and in winter for heating. Spring and fall are the easiest times to book maintenance or a replacement.
We scored 137 Chestertown 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 Chestertown 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 |