38 HVAC contractors ranked by CR ScoreUpdated 0 paid placements in this rankingHow we rank →
Best overall in Johnstown: St. Andrews Heating & Cooling, CR Score 66/100; 4.9★ from 328 Google reviews; open 24/7.
Best for emergencies (open 24/7): A. Johnson Plumbing and Heating, Inc., posts 24/7 hours; ranked #2 of 38.
Most-reviewed: Appolo Heating, 1,264 Google reviews at 4.8★, the most of 38 ranked; ranked #3.
Rankings can't be bought. Contractors can't pay to change their rank or score. How we rank
38 Johnstown HVAC contractors are ranked here by CR Score, from ten published factors. 19 are open 24/7, 24 open Saturdays and 22 open Sundays, based on posted hours. The median Google rating is 4.8★ across 38 rated businesses.
| Rank | Business | CR Score | Google rating | Based in | Hours | Best for |
|---|---|---|---|---|---|---|
| 1 | St. Andrews Heating & Cooling | 66 | 4.9★ (328) | Johnstown | 24/7 | Overall |
| 2 | A. Johnson Plumbing and Heating, Inc. | 63 | 4.6★ (397) | Gloversville, 4 mi away | 24/7 | Emergencies |
| 3 | Appolo Heating | 62 | 4.8★ (1,264) | Schenectady, 24 mi away | 24/7 | Most reviews |
| 4 | Mohawk Heating Company | 61 | 4.8★ (811) | Rotterdam, 23 mi away | 24/7 | — |
| 5 | Elocin Oil Co | 60 | 4.5★ (26) | Johnstown | 24/7 | — |
| 6 | Amsterdam Heating & Air Conditioning | 59 | 5.0★ (69) | Amsterdam, 10 mi away | Sat · Sun · Evenings | — |
| 7 | A. Johnson Plumbing & Heating, Inc. | 59 | 4.9★ (115) | East Glenville, 19 mi away | 24/7 | — |
| 8 | Allen's Family Heating & Cooling | 59 | 4.3★ (64) | Gloversville, 6 mi away | 24/7 | — |
| 9 | Tru-temp heating&cooling | 59 | 5.0★ (12) | Gloversville, 3 mi away | 24/7 | — |
| 10 | H2O Plumbing & Heating | 58 | 4.9★ (54) | Schenectady, 16 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: 4.9★ from 328 Google reviews, listed on Google as “HVAC contractor”.
Based in Gloversville, 4 mi away
Ranked #2 because of its Google rating and trade focus: 4.6★ from 397 Google reviews, listed on Google as “HVAC contractor”.
Based in Schenectady, 24 mi away
Ranked #3 because of its Google rating and review volume: 4.8★ from 1,264 Google reviews, the most in Johnstown.
Based in Rotterdam, 23 mi away
Ranked #4 because of its Google rating and trade focus: 4.8★ from 811 Google reviews, listed on Google as “HVAC contractor”.
Based in Johnstown
Ranked #5 because of its Google rating and trade focus: 4.5★ from 26 Google reviews, listed on Google as “Heating contractor”.
Based in Amsterdam, 10 mi away
Ranked #6 because of its Google rating and trade focus: 5.0★ from 69 Google reviews, listed on Google as “HVAC contractor”.
Based in East Glenville, 19 mi away
Ranked #7 because of its Google rating and trade focus: 4.9★ from 115 Google reviews, listed on Google as “HVAC contractor”.
Based in Gloversville, 6 mi away
Ranked #8 because of its Google rating and trade focus: 4.3★ from 64 Google reviews, listed on Google as “HVAC contractor”.
Based in Gloversville, 3 mi away
Ranked #9 because of its Google rating and trade focus: 5.0★ from 12 Google reviews, listed on Google as “HVAC contractor”.
Based in Schenectady, 16 mi away
Ranked #10 because of its Google rating and trade focus: 4.9★ from 54 Google reviews, listed on Google as “Heating contractor”.
Based in Schenectady, 22 mi away
Ranked #11 because of its Google rating and trade focus: 4.9★ from 82 Google reviews, listed on Google as “HVAC contractor”.
Based in Schenectady, 21 mi away
Ranked #12 because of its Google rating and trade focus: 4.9★ from 64 Google reviews, listed on Google as “Heating contractor”.
Based in East Glenville, 12 mi away
Ranked #13 because of its Google rating and trade focus: 5.0★ from 8 Google reviews, listed on Google as “HVAC contractor”.
Based in Cohoes, 20 mi away
Ranked #14 because of its Google rating and trade focus: 5.0★ from 23 Google reviews, listed on Google as “HVAC contractor”.
Based in Johnstown
Ranked #15 because of its Google rating and trade focus: 4.0★ from 4 Google reviews, listed on Google as “Air conditioning contractor”.
Based in Cohoes, 20 mi away
Ranked #16 because of its Google rating and trade focus: 5.0★ from 16 Google reviews, listed on Google as “HVAC contractor”.
Based in East Glenville, 21 mi away
Ranked #17 because of its Google rating and trade focus: 4.8★ from 52 Google reviews, listed on Google as “HVAC contractor”.
Based in Gloversville, 2 mi away
Ranked #18 because of its Google rating and trade focus: 4.7★ from 26 Google reviews, listed on Google as “HVAC contractor”.
Based in Johnstown
Ranked #19 because of its Google rating and trade focus: 4.3★ from 34 Google reviews, listed on Google as “HVAC contractor”.
Based in Schenectady, 20 mi away
Ranked #20 because of its Google rating and trade focus: 4.7★ from 14 Google reviews, listed on Google as “HVAC contractor”.
Based in East Glenville, 25 mi away
Ranked #21 because of its Google rating and trade focus: 4.8★ from 359 Google reviews, listed on Google as “Heating contractor”.
Based in Johnstown
Ranked #22 because of its Google rating and trade focus: 2.3★ from 3 Google reviews, listed on Google as “HVAC contractor”.
Based in Schenectady, 20 mi away
Ranked #23 because of its Google rating and trade focus: 4.9★ from 20 Google reviews, listed on Google as “Plumber”.
Based in Rotterdam, 25 mi away
Ranked #24 because of its Google rating and trade focus: 4.6★ from 13 Google reviews, listed on Google as “HVAC contractor”.
Based in Amsterdam, 9 mi away
Ranked #25 because of its Google rating and trade focus: 4.6★ from 9 Google reviews, listed on Google as “HVAC contractor”.
#1 to #25 are shown in full above. Here are #26 to #38, in CR Score order; each links to its profile.
| Rank | Business | CR Score | Google rating | Distance |
|---|---|---|---|---|
| 26 | Moreau's Plumbing | 51 | 4.9★ (19) | 24 mi |
| 27 | Lou's Electric of Amsterdam, Inc. | 51 | 4.1★ (28) | 12 mi |
| 28 | Rotterdam Heating & Air Conditioning | 51 | 4.5★ (136) | 24 mi |
| 29 | Egelston Energy Company | 51 | 4.5★ (25) | 10 mi |
| 30 | Assurance Plumbing & Heating | 51 | 4.5★ (8) | 10 mi |
| 31 | Solid Wood Developments | 51 | 5.0★ (8) | 13 mi |
| 32 | Marty's Plumbing & Heating | 50 | 4.0★ (6) | 18 mi |
| 33 | Conditioned Air Products | 49 | 4.9★ (14) | 24 mi |
| 34 | NO Problem Solutions | 49 | 4.6★ (20) | 14 mi |
| 35 | Extreme Heating & Cooling Inc. | 48 | 4.2★ (18) | 23 mi |
| 36 | Blue Flame Gas Co | 47 | 4.5★ (15) | 2 mi |
| 37 | MJP Heating and Cooling | 47 | 5.0★ (5) | 24 mi |
| 38 | Gisoti Plumbing & Heating Inc | 44 | 4.2★ (6) | 20 mi |
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 |
|---|---|---|
| A Tony Rogers Plumbing & Heating | 3 mi | |
| ASAP Heating Electrical Plumbing | 1 mi | |
| ASAP. Heating | 1.0★ (1) | In Johnstown |
| At Your Service Mechanical | 5.0★ (2) | 5 mi |
| E & J Heating & Cooling | 6 mi | |
| Efficient Heating and Cooling in Amsterdam | 5.0★ (2) | 10 mi |
| Efficient Heating and Cooling Services LLC | 1.0★ (1) | 11 mi |
| G Addams Heating & Cooling | 5 mi | |
| Matthew's Heating and Cooling | 5.0★ (1) | 10 mi |
| Mc Namara Refrigeration & AC | 5.0★ (1) | 7 mi |
| Mike's Plumbing and Heating | 5.0★ (2) | 22 mi |
| Onyx Heating and Cooling | 20 mi | |
| Platinum Plumbing & Heating | 3.0★ (2) | 24 mi |
| Robert Heating Electrical Plumbing - Boiler Installation Contractor, Emergency Furnace Repair in Johnstown, NY | 1 mi | |
| Russell climate solutions | 23 mi | |
| SolidSquareNY | 24 mi | |
| Sunset Heating & Cooling | 3 mi | |
| Thomas J Kelly Plumbing & Heating | 4.0★ (1) | 25 mi |
| Todd Jobs | 21 mi | |
| Veritas Heating And Cooling | 19 mi |
National price ranges in USD, not adjusted for Johnstown. 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 New York, 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 38 Johnstown 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 Johnstown 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 |