145 HVAC contractors ranked by CR ScoreUpdated 0 paid placements in this rankingHow we rank →
Best overall in Rensselaer: Family Danz Heating and Cooling, CR Score 65/100; 4.7★ from 1,968 Google reviews; open 24/7.
Best for emergencies (open 24/7): Crisafulli Bros. Plumbing & Heating Contractors, Inc., posts 24/7 hours; ranked #2 of 145.
Most-reviewed: Crisafulli Bros. Plumbing & Heating Contractors, Inc., 5,948 Google reviews at 4.8★, the most of 145 ranked; ranked #2.
Rankings can't be bought. Contractors can't pay to change their rank or score. How we rank
145 Rensselaer HVAC contractors are ranked here by CR Score, from ten published factors. 49 are open 24/7, 69 open Saturdays and 56 open Sundays, based on posted hours. The median Google rating is 4.8★ across 145 rated businesses.
| Rank | Business | CR Score | Google rating | Based in | Hours | Best for |
|---|---|---|---|---|---|---|
| 1 | Family Danz Heating and Cooling | 65 | 4.7★ (1,968) | Albany, 1 mi away | 24/7 | Overall |
| 2 | Crisafulli Bros. Plumbing & Heating Contractors, Inc. | 63 | 4.8★ (5,948) | Albany, 3 mi away | 24/7 | Emergencies, Most reviews |
| 3 | Grasshopper Heating, Cooling, Plumbing & Electrical | 62 | 4.9★ (2,580) | East Glenville, 18 mi away | 24/7 | — |
| 4 | Tangora Heating and Cooling | 62 | 4.9★ (275) | Delmar, 8 mi away | 24/7 | — |
| 5 | E.W. Tompkins Plumbing Heating Cooling | 61 | 4.9★ (900) | Albany, 1 mi away | 24/7 | — |
| 6 | Albany Mechanical Services Inc. | 61 | 4.7★ (333) | Albany, 7 mi away | 24/7 | — |
| 7 | Appolo Heating | 61 | 4.8★ (1,264) | Schenectady, 17 mi away | 24/7 | — |
| 8 | Best Cooling & Heating, LLC | 61 | 4.8★ (78) | Albany, 1 mi away | 24/7 | — |
| 9 | Field Industries Heating & Cooling | 61 | 5.0★ (228) | Cohoes, 12 mi away | 24/7 | — |
| 10 | ALJ Heating & Cooling LLC | 61 | 4.8★ (178) | Latham, 7 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: 4.7★ from 1,968 Google reviews, listed on Google as “HVAC contractor”.
Based in Albany, 3 mi away
Ranked #2 because of its Google rating and review volume: 4.8★ from 5,948 Google reviews, the most in Rensselaer.
Based in East Glenville, 18 mi away
Ranked #3 because of its Google rating and trade focus: 4.9★ from 2,580 Google reviews, listed on Google as “HVAC contractor”.
Based in Delmar, 8 mi away
Ranked #4 because of its Google rating and trade focus: 4.9★ from 275 Google reviews, listed on Google as “HVAC contractor”.
Based in Albany, 1 mi away
Ranked #5 because of its Google rating and review volume: 4.9★ from 900 Google reviews.
Based in Albany, 7 mi away
Ranked #6 because of its Google rating and trade focus: 4.7★ from 333 Google reviews, listed on Google as “HVAC contractor”.
Based in Schenectady, 17 mi away
Ranked #7 because of its Google rating and trade focus: 4.8★ from 1,264 Google reviews, listed on Google as “HVAC contractor”.
Based in Albany, 1 mi away
Ranked #8 because of its Google rating and trade focus: 4.8★ from 78 Google reviews, listed on Google as “HVAC contractor”.
Based in Cohoes, 12 mi away
Ranked #9 because of its Google rating and trade focus: 5.0★ from 228 Google reviews, listed on Google as “HVAC contractor”.
Based in Latham, 7 mi away
Ranked #10 because of its Google rating and trade focus: 4.8★ from 178 Google reviews, listed on Google as “HVAC contractor”.
Based in Rotterdam, 18 mi away
Ranked #11 because of its Google rating and trade focus: 4.8★ from 811 Google reviews, listed on Google as “HVAC contractor”.
Based in Cohoes, 10 mi away
Ranked #12 because of its Google rating and trade focus: 5.0★ from 95 Google reviews, listed on Google as “HVAC contractor”.
Based in Albany, 3 mi away
Ranked #13 because of its Google rating and trade focus: 4.9★ from 40 Google reviews, listed on Google as “HVAC contractor”.
Based in Colonie, 7 mi away
Ranked #14 because of its Google rating and trade focus: 5.0★ from 58 Google reviews, listed on Google as “HVAC contractor”.
Based in Troy, 5 mi away
Ranked #15 because of its Google rating and trade focus: 5.0★ from 86 Google reviews, listed on Google as “HVAC contractor”.
Based in Delmar, 4 mi away
Ranked #16 because of its Google rating and trade focus: 5.0★ from 71 Google reviews, listed on Google as “HVAC contractor”.
Based in Watervliet, 5 mi away
Ranked #17 because of its Google rating and trade focus: 4.3★ from 278 Google reviews, listed on Google as “HVAC contractor”.
Based in Troy, 13 mi away
Ranked #18 because of its Google rating and trade focus: 4.7★ from 241 Google reviews, listed on Google as “HVAC contractor”.
Based in East Glenville, 14 mi away
Ranked #19 because of its Google rating and trade focus: 4.9★ from 155 Google reviews, listed on Google as “HVAC contractor”.
Based in Albany, 7 mi away
Ranked #20 because of its Google rating and trade focus: 5.0★ from 41 Google reviews, listed on Google as “HVAC contractor”.
Based in Cohoes, 9 mi away
Ranked #21 because of its Google rating and trade focus: 4.9★ from 44 Google reviews, listed on Google as “HVAC contractor”.
Based in Amsterdam, 12 mi away
Ranked #22 because of its Google rating and trade focus: 4.8★ from 64 Google reviews, listed on Google as “HVAC contractor”.
Based in Schenectady, 17 mi away
Ranked #23 because of its Google rating and trade focus: 4.8★ from 364 Google reviews, listed on Google as “HVAC contractor”.
Based in Rotterdam, 1 mi away
Ranked #24 because of its Google rating and trade focus: 5.0★ from 17 Google reviews, listed on Google as “HVAC contractor”.
Based in Schenectady, 12 mi away
Ranked #25 because of its Google rating and trade focus: 5.0★ from 32 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 145 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 |
|---|---|---|
| Airflow Hvac Duct Cleaning LLC | In Rensselaer | |
| B&D Industries, Inc. | 4.5★ (2) | In Rensselaer |
| Bargain Plumbing and Heating | 5.0★ (7) | 8 mi |
| Capital District Heating | 5.0★ (16) | 22 mi |
| Capital District Mechanical, LLC | 3.0★ (2) | 15 mi |
| Dave & Son Plumbing & Heating | 4.9★ (20) | 21 mi |
| Dunn Right Maintenance | 5.0★ (5) | 10 mi |
| Friello and Sons Heating & Air conditioning | 5.0★ (1) | 5 mi |
| G.A.BOVE FUELS | 3.0★ (2) | 18 mi |
| Joe Ferracane Construction Co | 3.5★ (2) | 4 mi |
| Kace Heating & Cooling | 5.0★ (4) | 20 mi |
| Northeastern Air Quality, Inc. | 5.0★ (1) | 3 mi |
| Northway Plumbing & Heating Inc | 3.4★ (5) | 18 mi |
| Onyx Heating and Cooling | In Rensselaer | |
| Rit Fonda Heating & Cooling | 1.6★ (7) | 21 mi |
| Stoney Brook R&D LLC | 1.0★ (1) | 11 mi |
| Teal Services | 5.0★ (2) | In Rensselaer |
| The Maintenance Experts of Albany, NY | 5.0★ (1) | 4 mi |
| Tri City Plumbing & HVAC | 5.0★ (3) | 12 mi |
| Z's Technical Services HVAC | 1.0★ (1) | 11 mi |
National price ranges in USD, not adjusted for Rensselaer. 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 145 Rensselaer 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 Rensselaer 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 |