136 HVAC contractors ranked by CR ScoreUpdated 0 paid placements in this rankingHow we rank →
Best overall in Halfway: Larry & Sons Plumbing, Heating, Cooling, Drain & Electrical, CR Score 95/100; 4.8★ from 4,764 Google reviews; open 24/7.
Best for emergencies (open 24/7): Cumberland Valley Heating & Air Conditioning, posts 24/7 hours; ranked #2 of 136.
Most-reviewed: Johnson & Johnson Heating, Air Conditioning, and Plumbing, Inc., 2,110 Google reviews at 4.9★, the most of 136 ranked after Larry & Sons Plumbing, Heating, Cooling, Drain & Electrical; ranked #39.
Rankings can't be bought. Contractors can't pay to change their rank or score. How we rank
136 Halfway HVAC contractors are ranked here by CR Score, from 8 published factors. 45 are open 24/7, 80 open Saturdays and 60 open Sundays, based on posted hours. The median Google rating is 4.8★ across 136 rated businesses.
| Rank | Business | CR Score | Google rating | Based in | Hours | Best for |
|---|---|---|---|---|---|---|
| 1 | Larry & Sons Plumbing, Heating, Cooling, Drain & Electrical | 95 | 4.8★ (4,764) | Hagerstown, 2 mi away | 24/7 | Overall |
| 2 | Cumberland Valley Heating & Air Conditioning | 92 | 4.9★ (441) | Hagerstown, 1 mi away | 24/7 | Emergencies |
| 3 | Care Services Inc | 91 | 4.9★ (164) | Halfway | 24/7 | — |
| 4 | B & E Services | 91 | 4.9★ (154) | Halfway | 24/7 | — |
| 5 | McIntire HVAC | 90 | 4.9★ (160) | Hagerstown, 2 mi away | 24/7 | — |
| 6 | Comfort Central Inc | 90 | 5.0★ (65) | Halfway | 24/7 | — |
| 7 | Hagerstown Heating & Cooling | 88 | 4.8★ (660) | Hagerstown, 3 mi away | Sat · Sun | — |
| 8 | Techstar Mechanical Services llc. | 87 | 5.0★ (452) | Charles Town, 24 mi away | 24/7 | — |
| 9 | Markool Heating Cooling Plumbing | 87 | 4.9★ (547) | Frederick, 22 mi away | 24/7 | — |
| 10 | Wenbrooke Services - Electrical, Plumbing, Heating and Air | 87 | 4.8★ (1,208) | Frederick, 25 mi away | 24/7 | — |
Ordered by CR Score, a 0–100 score from 8 published factors. Paid placement never changes the order.
Scores below: based on 6 of 8 factors; credentials and recency not yet collected. Hatched segments mark factors we don't have yet.
Ranked #1 in Halfway
Based in Hagerstown, 2 mi away
Ranked #1 because of its Google rating and review volume: 4.8★ from 4,764 Google reviews, the most Google reviews on this list (4,764).
Based in Hagerstown, 1 mi away
Ranked #2 because of its Google rating and availability: 4.9★ from 441 Google reviews, open 24/7.
Based in Halfway
Ranked #3 because of its Google rating and availability: 4.9★ from 164 Google reviews, open 24/7.
Based in Halfway
Ranked #4 because of its Google rating and availability: 4.9★ from 154 Google reviews, open 24/7.
Based in Hagerstown, 2 mi away
Ranked #5 because of its Google rating and availability: 4.9★ from 160 Google reviews, open 24/7.
Based in Halfway
Ranked #6 because of its Google rating and availability: 5.0★ from 65 Google reviews, open 24/7.
Based in Hagerstown, 3 mi away
Ranked #7 because of its Google rating and trade focus: 4.8★ from 660 Google reviews, listed on Google as “HVAC contractor”.
Based in Charles Town, 24 mi away
Ranked #8 because of its Google rating and availability: 5.0★ from 452 Google reviews, open 24/7.
Based in Frederick, 22 mi away
Ranked #9 because of its Google rating and availability: 4.9★ from 547 Google reviews, open 24/7.
Based in Frederick, 25 mi away
Ranked #10 because of its Google rating and availability: 4.8★ from 1,208 Google reviews, open 24/7.
Based in Martinsburg, 16 mi away
Ranked #11 because of its Google rating and availability: 4.8★ from 261 Google reviews, open 24/7.
Based in Frederick, 24 mi away
Ranked #12 because of its Google rating and availability: 4.8★ from 932 Google reviews, open 24/7.
Based in Hagerstown, 4 mi away
Ranked #13 because of its Google rating and availability: 4.4★ from 147 Google reviews, open 24/7.
Based in Frederick, 22 mi away
Ranked #14 because of its Google rating and availability: 4.7★ from 928 Google reviews, open 24/7.
Based in Frederick, 24 mi away
Ranked #15 because of its Google rating and availability: 4.8★ from 537 Google reviews, open 24/7.
Based in Chambersburg, 23 mi away
Ranked #16 because of its Google rating and availability: 4.7★ from 638 Google reviews, open 24/7.
Based in Hagerstown, 2 mi away
Ranked #17 because of its Google rating and availability: 5.0★ from 7 Google reviews, open 24/7.
Based in Frederick, 25 mi away
Ranked #18 because of its Google rating and availability: 4.8★ from 414 Google reviews, open 24/7.
Based in Walkersville, 22 mi away
Ranked #19 because of its Google rating and availability: 4.8★ from 240 Google reviews, open 24/7.
Based in Frederick, 23 mi away
Ranked #20 because of its Google rating and availability: 5.0★ from 111 Google reviews, open 24/7.
Based in Frederick, 25 mi away
Ranked #21 because of its Google rating and trade focus: 4.9★ from 1,614 Google reviews, listed on Google as “HVAC contractor”.
Based in Hagerstown, 3 mi away
Ranked #22 because of its Google rating and availability: 4.7★ from 140 Google reviews, open 24/7.
Based in Frederick, 24 mi away
Ranked #23 because of its Google rating and trade focus: 5.0★ from 906 Google reviews, listed on Google as “HVAC contractor”.
Based in Martinsburg, 16 mi away
Ranked #24 because of its Google rating and availability: 4.8★ from 48 Google reviews, open 24/7.
Based in Frederick, 25 mi away
Ranked #25 because of its Google rating and availability: 4.8★ from 165 Google reviews, open 24/7.
#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 136 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.
National price ranges in USD, not adjusted for Halfway. 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 136 Halfway 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 Halfway 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 |