172 HVAC contractors ranked by CR ScoreUpdated 0 paid placements in this rankingHow we rank →
Best overall in Schenectady: Appolo Heating, CR Score 65/100; 4.8★ from 1,264 Google reviews; open 24/7.
Best for emergencies (open 24/7): Grasshopper Heating, Cooling, Plumbing & Electrical, posts 24/7 hours; ranked #2 of 172.
Most-reviewed: Crisafulli Bros. Plumbing & Heating Contractors, Inc., 5,948 Google reviews at 4.8★, the most of 172 ranked; ranked #12.
Rankings can't be bought. Contractors can't pay to change their rank or score. How we rank
172 Schenectady HVAC contractors are ranked here by CR Score, from ten published factors. 63 are open 24/7, 87 open Saturdays and 72 open Sundays, based on posted hours. The median Google rating is 4.8★ across 172 rated businesses.
| Rank | Business | CR Score | Google rating | Based in | Hours | Best for |
|---|---|---|---|---|---|---|
| 1 | Appolo Heating | 65 | 4.8★ (1,264) | Schenectady | 24/7 | Overall |
| 2 | Grasshopper Heating, Cooling, Plumbing & Electrical | 65 | 4.9★ (2,580) | East Glenville, 10 mi away | 24/7 | Emergencies |
| 3 | Mohawk Heating Company | 63 | 4.8★ (811) | Rotterdam, 6 mi away | 24/7 | — |
| 4 | Duell Plumbing & Heating | 62 | 4.8★ (364) | Schenectady | Sat · Sun · Evenings | — |
| 5 | Family Danz Heating and Cooling | 62 | 4.7★ (1,968) | Albany, 14 mi away | 24/7 | — |
| 6 | Field Industries Heating & Cooling | 62 | 5.0★ (228) | Cohoes, 9 mi away | 24/7 | — |
| 7 | Rays Clearflow Plumbing NY LLC - Licensed | 62 | 4.9★ (82) | Schenectady | 24/7 | — |
| 8 | Upstate Plumbing, Heating & Excavation, Inc. | 61 | 4.9★ (64) | Schenectady | 24/7 | — |
| 9 | Albany Mechanical Services Inc | 61 | 4.9★ (155) | East Glenville, 7 mi away | 24/7 | — |
| 10 | H2O Plumbing & Heating | 61 | 4.9★ (54) | Schenectady | 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: 4.8★ from 1,264 Google reviews, listed on Google as “HVAC contractor”.
Based in East Glenville, 10 mi away
Ranked #2 because of its Google rating and trade focus: 4.9★ from 2,580 Google reviews, listed on Google as “HVAC contractor”.
Based in Rotterdam, 6 mi away
Ranked #3 because of its Google rating and trade focus: 4.8★ from 811 Google reviews, listed on Google as “HVAC contractor”.
Based in Schenectady
Ranked #4 because of its Google rating and trade focus: 4.8★ from 364 Google reviews, listed on Google as “HVAC contractor”.
Based in Albany, 14 mi away
Ranked #5 because of its Google rating and trade focus: 4.7★ from 1,968 Google reviews, listed on Google as “HVAC contractor”.
Based in Cohoes, 9 mi away
Ranked #6 because of its Google rating and trade focus: 5.0★ from 228 Google reviews, listed on Google as “HVAC contractor”.
Based in Schenectady
Ranked #7 because of its Google rating and trade focus: 4.9★ from 82 Google reviews, listed on Google as “HVAC contractor”.
Based in Schenectady
Ranked #8 because of its Google rating and trade focus: 4.9★ from 64 Google reviews, listed on Google as “Heating contractor”.
Based in East Glenville, 7 mi away
Ranked #9 because of its Google rating and trade focus: 4.9★ from 155 Google reviews, listed on Google as “HVAC contractor”.
Based in Schenectady
Ranked #10 because of its Google rating and trade focus: 4.9★ from 54 Google reviews, listed on Google as “Heating contractor”.
Based in East Glenville, 6 mi away
Ranked #11 because of its Google rating and trade focus: 4.9★ from 115 Google reviews, listed on Google as “HVAC contractor”.
Based in Albany, 13 mi away
Ranked #12 because of its Google rating and review volume: 4.8★ from 5,948 Google reviews, the most in Schenectady.
Based in Schenectady
Ranked #13 because of its Google rating and trade focus: 5.0★ from 32 Google reviews, listed on Google as “HVAC contractor”.
Based in Delmar, 15 mi away
Ranked #14 because of its Google rating and trade focus: 4.9★ from 275 Google reviews, listed on Google as “HVAC contractor”.
Based in Troy, 10 mi away
Ranked #15 because of its Google rating and trade focus: 4.7★ from 241 Google reviews, listed on Google as “HVAC contractor”.
Based in Latham, 11 mi away
Ranked #16 because of its Google rating and trade focus: 4.8★ from 178 Google reviews, listed on Google as “HVAC contractor”.
Based in Schenectady
Ranked #17 because of its Google rating and trade focus: 5.0★ from 21 Google reviews, listed on Google as “HVAC contractor”.
Based in Schenectady
Ranked #18 because of its Google rating and trade focus: 4.9★ from 22 Google reviews, listed on Google as “HVAC contractor”.
Based in Albany, 13 mi away
Ranked #19 because of its Google rating and trade focus: 4.7★ from 333 Google reviews, listed on Google as “HVAC contractor”.
Based in Saratoga Springs, 7 mi away
Ranked #20 because of its Google rating and trade focus: 4.7★ from 111 Google reviews, listed on Google as “HVAC contractor”.
Based in Colonie, 9 mi away
Ranked #21 because of its Google rating and trade focus: 5.0★ from 58 Google reviews, listed on Google as “HVAC contractor”.
Based in Cohoes, 12 mi away
Ranked #22 because of its Google rating and trade focus: 5.0★ from 95 Google reviews, listed on Google as “HVAC contractor”.
Based in Schenectady
Ranked #23 because of its Google rating and trade focus: 4.8★ from 623 Google reviews, listed on Google as “HVAC contractor”.
Based in Amsterdam, 8 mi away
Ranked #24 because of its Google rating and trade focus: 4.8★ from 64 Google reviews, listed on Google as “HVAC contractor”.
Based in Albany, 8 mi away
Ranked #25 because of its Google rating and trade focus: 5.0★ from 41 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 172 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 |
|---|---|---|
| A to Z Heating Plumbing and Cooling | 5.0★ (1) | In Schenectady |
| A-Z Heating, Cooling and Plumbing | 5.0★ (1) | In Schenectady |
| A&A Services Center LLC | 4.7★ (15) | In Schenectady |
| Altamont Heating & Air Conditioning | In Schenectady | |
| Blue Collar Climate | 5.0★ (8) | 13 mi |
| Bold Heating & Air Conditioning | 4.3★ (20) | 15 mi |
| Capital District Mechanical, LLC | 3.0★ (2) | In Schenectady |
| Capitol Plumbing - Heating Supplies | In Schenectady | |
| D.J. Miklowitz Plumbing & Heating | In Schenectady | |
| Empire Insulation Specialties | 4.0★ (1) | In Schenectady |
| Indoor Weather Control | 5.0★ (1) | In Schenectady |
| J2 Plumbing and Heating | 4.6★ (79) | 20 mi |
| Kace Heating & Cooling | 5.0★ (4) | 14 mi |
| Maddalone Heating and Cooling | In Schenectady | |
| Maloney Plumbing | 5.0★ (34) | In Schenectady |
| Royal Flush Plumbing & Heating | 1.0★ (1) | In Schenectady |
| Stanko & Sons Heating & Cooling | 4.3★ (22) | 14 mi |
| Upstate Duct Cleaning | 5.0★ (48) | 24 mi |
| Veritas Heating and Cooling | 5.0★ (17) | 16 mi |
| Z's Technical Services HVAC | 1.0★ (1) | In Schenectady |
National price ranges in USD, not adjusted for Schenectady. 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 172 Schenectady 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 Schenectady 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 |