379 HVAC contractors ranked by CR ScoreUpdated 0 paid placements in this rankingHow we rank →
Best overall in Fallston: Blue Dot Services, CR Score 63/100; 4.5★ from 7,297 Google reviews; open 24/7.
Best for emergencies (open 24/7): Anchor Mechanical LLC, posts 24/7 hours; ranked #2 of 379.
Most-reviewed: Len The Plumber Heating & Air, LLC, 15,911 Google reviews at 4.7★, the most of 379 ranked; ranked #39.
Rankings can't be bought. Contractors can't pay to change their rank or score. How we rank
379 Fallston HVAC contractors are ranked here by CR Score, from ten published factors. 122 are open 24/7, 225 open Saturdays and 182 open Sundays, based on posted hours. The median Google rating is 4.8★ across 379 rated businesses.
| Rank | Business | CR Score | Google rating | Based in | Hours | Best for |
|---|---|---|---|---|---|---|
| 1 | Blue Dot Services | 63 | 4.5★ (7,297) | Bel Air North, 5 mi away | 24/7 | Overall |
| 2 | Anchor Mechanical LLC | 62 | 4.9★ (340) | Bel Air North, 5 mi away | 24/7 | Emergencies |
| 3 | Michael & Son Services | 62 | 4.7★ (8,039) | Baltimore, 16 mi away | 24/7 | — |
| 4 | Excel Services | 62 | 4.9★ (411) | Bel Air North, 7 mi away | 24/7 | — |
| 5 | HGH Mechanical | 61 | 4.9★ (337) | Edgewood, 7 mi away | 24/7 | — |
| 6 | Aire Serv of Bel Air | 61 | 4.9★ (309) | Bel Air North, 7 mi away | 24/7 | — |
| 7 | First Response Heating & Cooling | 61 | 4.8★ (285) | Bel Air North, 5 mi away | 24/7 | — |
| 8 | S&L Prime A/C and Heating | 61 | 4.9★ (726) | Cockeysville, 6 mi away | Sat · Sun · Evenings | — |
| 9 | Comfort Air | 61 | 5.0★ (65) | Fallston | 24/7 | — |
| 10 | Horizon Services - Air Conditioning, Heating, Plumbing & Electrical | 61 | 4.8★ (2,282) | Havre de Grace, 17 mi away | 24/7 | — |
Ordered by CR Score, a 0–100 score from ten published factors. Paid placement never changes the order.
Scores below: based on 8 of 10 factors; credentials and recency not yet collected. Hatched segments mark factors we don't have yet.
Ranked #1 because of its Google rating and trade focus: 4.5★ from 7,297 Google reviews, listed on Google as “Heating contractor”.
Based in Bel Air North, 5 mi away
Ranked #2 because of its Google rating and trade focus: 4.9★ from 340 Google reviews, listed on Google as “HVAC contractor”.
Based in Baltimore, 16 mi away
Ranked #3 because of its Google rating and trade focus: 4.7★ from 8,039 Google reviews, listed on Google as “HVAC contractor”.
Based in Bel Air North, 7 mi away
Ranked #4 because of its Google rating and trade focus: 4.9★ from 411 Google reviews, listed on Google as “HVAC contractor”.
Based in Edgewood, 7 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 in Bel Air North, 7 mi away
Ranked #6 because of its Google rating and trade focus: 4.9★ from 309 Google reviews, listed on Google as “HVAC contractor”.
Based in Bel Air North, 5 mi away
Ranked #7 because of its Google rating and trade focus: 4.8★ from 285 Google reviews, listed on Google as “HVAC contractor”.
Based in Cockeysville, 6 mi away
Ranked #8 because of its Google rating and trade focus: 4.9★ from 726 Google reviews, listed on Google as “HVAC contractor”.
Based in Fallston
Ranked #9 because of its Google rating and trade focus: 5.0★ from 65 Google reviews, listed on Google as “HVAC contractor”.
Based in Havre de Grace, 17 mi away
Ranked #10 because of its Google rating and trade focus: 4.8★ from 2,282 Google reviews, listed on Google as “HVAC contractor”.
Based in Fallston
Ranked #11 because of its Google rating and trade focus: 4.9★ from 220 Google reviews, listed on Google as “HVAC contractor”.
Based in Bel Air North, 6 mi away
Ranked #12 because of its Google rating and trade focus: 5.0★ from 378 Google reviews, listed on Google as “HVAC contractor”.
Based in Joppatowne, 8 mi away
Ranked #13 because of its Google rating and trade focus: 4.9★ from 244 Google reviews, listed on Google as “HVAC contractor”.
Based in Bel Air, 4 mi away
Ranked #14 because of its Google rating and trade focus: 5.0★ from 93 Google reviews, listed on Google as “HVAC contractor”.
Based in Baltimore, 23 mi away
Ranked #15 because of its Google rating and trade focus: 4.8★ from 4,514 Google reviews, listed on Google as “HVAC contractor”.
Based in Baltimore, 18 mi away
Ranked #16 because of its Google rating and trade focus: 5.0★ from 786 Google reviews, listed on Google as “HVAC contractor”.
Based in Fallston
Ranked #17 because of its Google rating and trade focus: 5.0★ from 43 Google reviews, listed on Google as “HVAC contractor”.
Based in Timonium, 13 mi away
Ranked #18 because of its Google rating and trade focus: 4.8★ from 614 Google reviews, listed on Google as “HVAC contractor”.
Based in Essex, 15 mi away
Ranked #19 because of its Google rating and trade focus: 4.9★ from 369 Google reviews, listed on Google as “HVAC contractor”.
Based in Essex, 15 mi away
Ranked #20 because of its Google rating and trade focus: 5.0★ from 195 Google reviews, listed on Google as “HVAC contractor”.
Based in Essex, 14 mi away
Ranked #21 because of its Google rating and trade focus: 4.8★ from 408 Google reviews, listed on Google as “HVAC contractor”.
Based in Dundalk, 25 mi away
Ranked #22 because of its Google rating and trade focus: 4.9★ from 1,461 Google reviews, listed on Google as “HVAC contractor”.
Based in Bel Air, 6 mi away
Ranked #23 because of its Google rating and trade focus: 4.8★ from 64 Google reviews, listed on Google as “Heating contractor”.
Based in Bel Air North, 7 mi away
Ranked #24 because of its Google rating and trade focus: 5.0★ from 52 Google reviews, listed on Google as “HVAC contractor”.
Based in Arbutus, 19 mi away
Ranked #25 because of its Google rating and trade focus: 4.9★ from 419 Google reviews, listed on Google as “HVAC contractor”.
#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 379 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 |
|---|---|---|
| AAA | 4.7★ (60) | 12 mi |
| Arundel Service Experts | 4.7★ (472) | 24 mi |
| Bennett Air Care LLC | 5.0★ (2) | 8 mi |
| Capitol Boiler Works | 1.0★ (2) | 23 mi |
| Comfort Pro’s HVAC Services LLC | 5.0★ (1) | In Fallston |
| Commercial CAD | 5.0★ (2) | 15 mi |
| DJE Plumbing and Heating | 5.0★ (2) | 22 mi |
| DM3 Heating & Air | 5.0★ (2) | 21 mi |
| Fallston Chimney | 5.0★ (1) | In Fallston |
| Fresh Air Concepts, LLC | 4.9★ (217) | 24 mi |
| James Brown AB Plumbing and Heating of Maryland | 5.0★ (1) | 3 mi |
| Moxley Mechanical Services, LLC | 5.0★ (1) | 3 mi |
| New Covenant Heating & Air 32 Years in business | 4.7★ (27) | 12 mi |
| Palardy Plumbing & Heating Inc | In Fallston | |
| R & G Plumbing & Heating | 5.0★ (2) | 15 mi |
| Scardina Plumbing-Heating Inc | 5.0★ (2) | 18 mi |
| Shielded Edge Property Solutions | 5.0★ (2) | 25 mi |
| Thomas Air Conditioning Services, Inc. | 5.0★ (2) | 6 mi |
| United Air Temp | 4.4★ (88) | 13 mi |
| W J House Plumbing & Heating | 5.0★ (1) | 4 mi |
National price ranges in USD, not adjusted for Fallston. 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 379 Fallston 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 Fallston 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 |